2008-11-18 16:29:10 -07:00
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// Copyright 2009 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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2011-04-19 17:57:05 -06:00
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// Package testing provides support for automated testing of Go packages.
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2012-01-17 15:20:27 -07:00
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// It is intended to be used in concert with the ``go test'' command, which automates
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2009-03-05 18:50:36 -07:00
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// execution of any function of the form
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// func TestXxx(*testing.T)
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2010-02-08 00:11:54 -07:00
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// where Xxx can be any alphanumeric string (but the first letter must not be in
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2009-03-05 18:50:36 -07:00
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// [a-z]) and serves to identify the test routine.
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// These TestXxx routines should be declared within the package they are testing.
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2009-11-19 17:35:34 -07:00
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//
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testing: add Skip/Skipf
This proposal adds two methods to *testing.T, Skip(string) and Skipf(format, args...). The intent is to replace the existing log and return idiom which currently has 97 cases in the standard library. A simple example of Skip would be:
func TestSomethingLong(t *testing.T) {
if testing.Short() {
t.Skip("skipping test in short mode.")
// not reached
}
... time consuming work
}
Additionally tests can be skipped anywhere a *testing.T is present. An example adapted from the go.crypto/ssh/test package would be:
// setup performs some before test action and returns a func()
// which should be defered by the caller for cleanup.
func setup(t *testing.T) func() {
...
cmd := exec.Command("sshd", "-f", configfile, "-i")
if err := cmd.Run(); err != nil {
t.Skipf("could not execute mock ssh server: %v", err)
}
...
return func() {
// stop subprocess and cleanup
}
}
func TestDialMockServer(t *testing.T) {
cleanup := setup(t)
defer cleanup()
...
}
In verbose mode tests that are skipped are now reported as a SKIP, rather than PASS.
Link to discussion: https://groups.google.com/d/topic/golang-nuts/BqorNARzt4U/discussion
R=adg, rsc, r, n13m3y3r
CC=golang-dev, minux.ma
https://golang.org/cl/6501094
2013-01-22 16:22:33 -07:00
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// Tests may be skipped if not applicable like this:
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// func TestTimeConsuming(t *testing.T) {
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// if testing.Short() {
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// t.Skip("skipping test in short mode.")
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// }
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// ...
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// }
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//
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2009-11-19 17:35:34 -07:00
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// Functions of the form
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// func BenchmarkXxx(*testing.B)
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2012-02-09 19:49:50 -07:00
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// are considered benchmarks, and are executed by the "go test" command when
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2012-09-24 13:03:16 -06:00
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// the -test.bench flag is provided. Benchmarks are run sequentially.
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2012-10-30 14:38:01 -06:00
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//
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2012-09-24 14:05:47 -06:00
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// For a description of the testing flags, see
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// http://golang.org/cmd/go/#Description_of_testing_flags.
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2009-11-19 17:35:34 -07:00
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//
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// A sample benchmark function looks like this:
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// func BenchmarkHello(b *testing.B) {
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// for i := 0; i < b.N; i++ {
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// fmt.Sprintf("hello")
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// }
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// }
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//
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2013-02-09 11:43:15 -07:00
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// The benchmark function must run the target code b.N times.
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2009-11-19 17:35:34 -07:00
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// The benchmark package will vary b.N until the benchmark function lasts
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// long enough to be timed reliably. The output
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2012-10-02 21:41:18 -06:00
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// BenchmarkHello 10000000 282 ns/op
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// means that the loop ran 10000000 times at a speed of 282 ns per loop.
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//
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// If a benchmark needs some expensive setup before running, the timer
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2012-10-02 21:41:18 -06:00
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// may be reset:
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2009-11-19 17:35:34 -07:00
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// func BenchmarkBigLen(b *testing.B) {
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2010-04-11 11:18:49 -06:00
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// big := NewBig()
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2012-10-02 21:41:18 -06:00
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// b.ResetTimer()
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2009-11-19 17:35:34 -07:00
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// for i := 0; i < b.N; i++ {
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2010-04-11 11:18:49 -06:00
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// big.Len()
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2009-11-19 17:35:34 -07:00
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// }
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// }
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//
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// The package also runs and verifies example code. Example functions may
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// include a concluding comment that begins with "Output:" and is compared with
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2013-01-11 17:18:15 -07:00
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// the standard output of the function when the tests are run. (The comparison
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// ignores leading and trailing space.) These are examples of an example:
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2012-01-17 15:20:27 -07:00
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//
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// func ExampleHello() {
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// fmt.Println("hello")
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// // Output: hello
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// }
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//
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// func ExampleSalutations() {
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// fmt.Println("hello, and")
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// fmt.Println("goodbye")
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// // Output:
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// // hello, and
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// // goodbye
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// }
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//
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// Example functions without output comments are compiled but not executed.
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//
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// The naming convention to declare examples for a function F, a type T and
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// method M on type T are:
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//
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// func ExampleF() { ... }
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// func ExampleT() { ... }
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// func ExampleT_M() { ... }
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//
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// Multiple example functions for a type/function/method may be provided by
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// appending a distinct suffix to the name. The suffix must start with a
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// lower-case letter.
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//
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// func ExampleF_suffix() { ... }
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// func ExampleT_suffix() { ... }
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// func ExampleT_M_suffix() { ... }
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//
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2012-02-13 23:19:59 -07:00
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// The entire test file is presented as the example when it contains a single
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// example function, at least one other function, type, variable, or constant
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// declaration, and no test or benchmark functions.
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2008-11-18 16:29:10 -07:00
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package testing
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2008-11-18 18:52:05 -07:00
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import (
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2012-07-16 23:56:25 -06:00
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"bytes"
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2009-12-15 16:41:46 -07:00
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"flag"
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"fmt"
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"os"
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"runtime"
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2011-03-16 10:53:58 -06:00
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"runtime/pprof"
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2011-06-27 11:31:40 -06:00
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"strconv"
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2011-10-06 10:58:36 -06:00
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"strings"
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2012-07-25 11:17:27 -06:00
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"sync"
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2011-02-11 16:00:58 -07:00
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"time"
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2008-11-18 18:52:05 -07:00
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)
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2011-03-16 10:53:58 -06:00
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var (
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2011-03-25 15:50:44 -06:00
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// The short flag requests that tests run more quickly, but its functionality
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// is provided by test writers themselves. The testing package is just its
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// home. The all.bash installation script sets it to make installation more
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2012-02-09 19:49:50 -07:00
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// efficient, but by default the flag is off so a plain "go test" will do a
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2011-03-25 15:50:44 -06:00
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// full test of the package.
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short = flag.Bool("test.short", false, "run smaller test suite to save time")
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2011-03-16 10:53:58 -06:00
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// Report as tests are run; default is silent for success.
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pprof: add goroutine blocking profiling
The profiler collects goroutine blocking information similar to Google Perf Tools.
You may see an example of the profile (converted to svg) attached to
http://code.google.com/p/go/issues/detail?id=3946
The public API changes are:
+pkg runtime, func BlockProfile([]BlockProfileRecord) (int, bool)
+pkg runtime, func SetBlockProfileRate(int)
+pkg runtime, method (*BlockProfileRecord) Stack() []uintptr
+pkg runtime, type BlockProfileRecord struct
+pkg runtime, type BlockProfileRecord struct, Count int64
+pkg runtime, type BlockProfileRecord struct, Cycles int64
+pkg runtime, type BlockProfileRecord struct, embedded StackRecord
R=rsc, dave, minux.ma, r
CC=gobot, golang-dev, r, remyoudompheng
https://golang.org/cl/6443115
2012-10-06 02:56:04 -06:00
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chatty = flag.Bool("test.v", false, "verbose: print additional output")
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match = flag.String("test.run", "", "regular expression to select tests and examples to run")
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memProfile = flag.String("test.memprofile", "", "write a memory profile to the named file after execution")
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memProfileRate = flag.Int("test.memprofilerate", 0, "if >=0, sets runtime.MemProfileRate")
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cpuProfile = flag.String("test.cpuprofile", "", "write a cpu profile to the named file during execution")
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blockProfile = flag.String("test.blockprofile", "", "write a goroutine blocking profile to the named file after execution")
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blockProfileRate = flag.Int("test.blockprofilerate", 1, "if >= 0, calls runtime.SetBlockProfileRate()")
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timeout = flag.Duration("test.timeout", 0, "if positive, sets an aggregate time limit for all tests")
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cpuListStr = flag.String("test.cpu", "", "comma-separated list of number of CPUs to use for each test")
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parallel = flag.Int("test.parallel", runtime.GOMAXPROCS(0), "maximum test parallelism")
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2011-06-27 11:31:40 -06:00
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2012-03-07 12:54:31 -07:00
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haveExamples bool // are there examples?
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2011-06-27 11:31:40 -06:00
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cpuList []int
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2011-03-16 10:53:58 -06:00
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)
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2009-06-04 16:40:28 -06:00
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2011-12-20 10:51:39 -07:00
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// common holds the elements common between T and B and
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// captures common methods such as Errorf.
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type common struct {
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2012-07-25 11:17:27 -06:00
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mu sync.RWMutex // guards output and failed
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output []byte // Output generated by test or benchmark.
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failed bool // Test or benchmark has failed.
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2011-12-20 10:51:39 -07:00
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start time.Time // Time test or benchmark started
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duration time.Duration
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self interface{} // To be sent on signal channel when done.
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signal chan interface{} // Output for serial tests.
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}
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2011-03-25 15:50:44 -06:00
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// Short reports whether the -test.short flag is set.
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func Short() bool {
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return *short
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}
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2012-08-09 09:41:09 -06:00
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// Verbose reports whether the -test.v flag is set.
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func Verbose() bool {
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return *chatty
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}
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2012-07-16 23:56:25 -06:00
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// decorate prefixes the string with the file and line of the call site
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// and inserts the final newline if needed and indentation tabs for formatting.
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func decorate(s string) string {
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_, file, line, ok := runtime.Caller(3) // decorate + log + public function.
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if ok {
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// Truncate file name at last file name separator.
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if index := strings.LastIndex(file, "/"); index >= 0 {
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file = file[index+1:]
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} else if index = strings.LastIndex(file, "\\"); index >= 0 {
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file = file[index+1:]
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2011-11-10 12:59:50 -07:00
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}
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2012-07-16 23:56:25 -06:00
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} else {
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file = "???"
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line = 1
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2011-11-10 12:59:50 -07:00
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}
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2012-07-16 23:56:25 -06:00
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buf := new(bytes.Buffer)
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fmt.Fprintf(buf, "%s:%d: ", file, line)
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lines := strings.Split(s, "\n")
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2012-10-07 10:21:53 -06:00
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if l := len(lines); l > 1 && lines[l-1] == "" {
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lines = lines[:l-1]
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}
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2012-07-16 23:56:25 -06:00
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for i, line := range lines {
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if i > 0 {
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buf.WriteByte('\n')
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}
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// Every line is indented at least one tab.
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buf.WriteByte('\t')
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if i > 0 {
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2011-11-10 12:59:50 -07:00
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// Second and subsequent lines are indented an extra tab.
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2012-07-16 23:56:25 -06:00
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buf.WriteByte('\t')
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2008-11-20 19:10:46 -07:00
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}
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2012-07-16 23:56:25 -06:00
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buf.WriteString(line)
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}
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2012-10-07 10:21:53 -06:00
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buf.WriteByte('\n')
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2012-07-16 23:56:25 -06:00
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return buf.String()
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2008-11-20 19:10:46 -07:00
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}
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2009-03-05 18:50:36 -07:00
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// T is a type passed to Test functions to manage test state and support formatted test logs.
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// Logs are accumulated during execution and dumped to standard error when done.
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2009-01-20 15:40:40 -07:00
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type T struct {
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2011-12-20 10:51:39 -07:00
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common
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name string // Name of test.
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startParallel chan bool // Parallel tests will wait on this.
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testing: add Skip/Skipf
This proposal adds two methods to *testing.T, Skip(string) and Skipf(format, args...). The intent is to replace the existing log and return idiom which currently has 97 cases in the standard library. A simple example of Skip would be:
func TestSomethingLong(t *testing.T) {
if testing.Short() {
t.Skip("skipping test in short mode.")
// not reached
}
... time consuming work
}
Additionally tests can be skipped anywhere a *testing.T is present. An example adapted from the go.crypto/ssh/test package would be:
// setup performs some before test action and returns a func()
// which should be defered by the caller for cleanup.
func setup(t *testing.T) func() {
...
cmd := exec.Command("sshd", "-f", configfile, "-i")
if err := cmd.Run(); err != nil {
t.Skipf("could not execute mock ssh server: %v", err)
}
...
return func() {
// stop subprocess and cleanup
}
}
func TestDialMockServer(t *testing.T) {
cleanup := setup(t)
defer cleanup()
...
}
In verbose mode tests that are skipped are now reported as a SKIP, rather than PASS.
Link to discussion: https://groups.google.com/d/topic/golang-nuts/BqorNARzt4U/discussion
R=adg, rsc, r, n13m3y3r
CC=golang-dev, minux.ma
https://golang.org/cl/6501094
2013-01-22 16:22:33 -07:00
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skipped bool // Test has been skipped.
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2008-11-19 15:38:05 -07:00
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}
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2011-12-20 10:51:39 -07:00
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// Fail marks the function as having failed but continues execution.
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2012-07-25 11:17:27 -06:00
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func (c *common) Fail() {
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c.mu.Lock()
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defer c.mu.Unlock()
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c.failed = true
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}
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2008-11-19 15:38:05 -07:00
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|
testing: add Skip/Skipf
This proposal adds two methods to *testing.T, Skip(string) and Skipf(format, args...). The intent is to replace the existing log and return idiom which currently has 97 cases in the standard library. A simple example of Skip would be:
func TestSomethingLong(t *testing.T) {
if testing.Short() {
t.Skip("skipping test in short mode.")
// not reached
}
... time consuming work
}
Additionally tests can be skipped anywhere a *testing.T is present. An example adapted from the go.crypto/ssh/test package would be:
// setup performs some before test action and returns a func()
// which should be defered by the caller for cleanup.
func setup(t *testing.T) func() {
...
cmd := exec.Command("sshd", "-f", configfile, "-i")
if err := cmd.Run(); err != nil {
t.Skipf("could not execute mock ssh server: %v", err)
}
...
return func() {
// stop subprocess and cleanup
}
}
func TestDialMockServer(t *testing.T) {
cleanup := setup(t)
defer cleanup()
...
}
In verbose mode tests that are skipped are now reported as a SKIP, rather than PASS.
Link to discussion: https://groups.google.com/d/topic/golang-nuts/BqorNARzt4U/discussion
R=adg, rsc, r, n13m3y3r
CC=golang-dev, minux.ma
https://golang.org/cl/6501094
2013-01-22 16:22:33 -07:00
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// Failed reports whether the function has failed.
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2012-07-25 11:17:27 -06:00
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func (c *common) Failed() bool {
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c.mu.RLock()
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defer c.mu.RUnlock()
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return c.failed
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}
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2009-05-19 12:00:55 -06:00
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2011-12-20 10:51:39 -07:00
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// FailNow marks the function as having failed and stops its execution.
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2012-02-09 19:49:50 -07:00
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// Execution will continue at the next test or benchmark.
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2013-02-01 19:01:32 -07:00
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// FailNow must be called from the goroutine running the
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// test or benchmark function, not from other goroutines
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// created during the test. Calling FailNow does not stop
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// those other goroutines.
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2011-12-20 10:51:39 -07:00
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func (c *common) FailNow() {
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c.Fail()
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2012-01-12 11:18:12 -07:00
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// Calling runtime.Goexit will exit the goroutine, which
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// will run the deferred functions in this goroutine,
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// which will eventually run the deferred lines in tRunner,
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// which will signal to the test loop that this test is done.
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//
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// A previous version of this code said:
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//
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// c.duration = ...
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// c.signal <- c.self
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// runtime.Goexit()
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//
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// This previous version duplicated code (those lines are in
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// tRunner no matter what), but worse the goroutine teardown
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// implicit in runtime.Goexit was not guaranteed to complete
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|
|
// before the test exited. If a test deferred an important cleanup
|
|
|
|
// function (like removing temporary files), there was no guarantee
|
|
|
|
// it would run on a test failure. Because we send on c.signal during
|
|
|
|
// a top-of-stack deferred function now, we know that the send
|
|
|
|
// only happens after any other stacked defers have completed.
|
2009-12-15 16:41:46 -07:00
|
|
|
runtime.Goexit()
|
2008-11-19 15:38:05 -07:00
|
|
|
}
|
|
|
|
|
2011-11-10 12:59:50 -07:00
|
|
|
// log generates the output. It's always at the same stack depth.
|
2011-12-20 10:51:39 -07:00
|
|
|
func (c *common) log(s string) {
|
2012-07-25 11:17:27 -06:00
|
|
|
c.mu.Lock()
|
|
|
|
defer c.mu.Unlock()
|
2012-07-16 23:56:25 -06:00
|
|
|
c.output = append(c.output, decorate(s)...)
|
2011-12-20 10:51:39 -07:00
|
|
|
}
|
2011-11-10 12:59:50 -07:00
|
|
|
|
2013-02-01 19:01:32 -07:00
|
|
|
// Log formats its arguments using default formatting, analogous to Println,
|
2009-03-05 18:50:36 -07:00
|
|
|
// and records the text in the error log.
|
2011-12-20 10:51:39 -07:00
|
|
|
func (c *common) Log(args ...interface{}) { c.log(fmt.Sprintln(args...)) }
|
2008-11-19 15:38:05 -07:00
|
|
|
|
2013-02-01 19:01:32 -07:00
|
|
|
// Logf formats its arguments according to the format, analogous to Printf,
|
2009-03-05 18:50:36 -07:00
|
|
|
// and records the text in the error log.
|
2011-12-20 10:51:39 -07:00
|
|
|
func (c *common) Logf(format string, args ...interface{}) { c.log(fmt.Sprintf(format, args...)) }
|
2008-11-19 15:38:05 -07:00
|
|
|
|
2013-02-01 19:01:32 -07:00
|
|
|
// Error is equivalent to Log followed by Fail.
|
2011-12-20 10:51:39 -07:00
|
|
|
func (c *common) Error(args ...interface{}) {
|
|
|
|
c.log(fmt.Sprintln(args...))
|
|
|
|
c.Fail()
|
2008-11-19 15:38:05 -07:00
|
|
|
}
|
|
|
|
|
2013-02-01 19:01:32 -07:00
|
|
|
// Errorf is equivalent to Logf followed by Fail.
|
2011-12-20 10:51:39 -07:00
|
|
|
func (c *common) Errorf(format string, args ...interface{}) {
|
|
|
|
c.log(fmt.Sprintf(format, args...))
|
|
|
|
c.Fail()
|
2008-11-19 15:38:05 -07:00
|
|
|
}
|
|
|
|
|
2013-02-01 19:01:32 -07:00
|
|
|
// Fatal is equivalent to Log followed by FailNow.
|
2011-12-20 10:51:39 -07:00
|
|
|
func (c *common) Fatal(args ...interface{}) {
|
|
|
|
c.log(fmt.Sprintln(args...))
|
|
|
|
c.FailNow()
|
2008-11-19 15:38:05 -07:00
|
|
|
}
|
|
|
|
|
2013-02-01 19:01:32 -07:00
|
|
|
// Fatalf is equivalent to Logf followed by FailNow.
|
2011-12-20 10:51:39 -07:00
|
|
|
func (c *common) Fatalf(format string, args ...interface{}) {
|
|
|
|
c.log(fmt.Sprintf(format, args...))
|
|
|
|
c.FailNow()
|
2008-11-19 15:38:05 -07:00
|
|
|
}
|
|
|
|
|
2012-10-30 14:38:01 -06:00
|
|
|
// Parallel signals that this test is to be run in parallel with (and only with)
|
2013-02-03 21:47:03 -07:00
|
|
|
// other parallel tests.
|
2011-10-06 10:58:36 -06:00
|
|
|
func (t *T) Parallel() {
|
2011-12-22 11:43:54 -07:00
|
|
|
t.signal <- (*T)(nil) // Release main testing loop
|
|
|
|
<-t.startParallel // Wait for serial tests to finish
|
2011-10-06 10:58:36 -06:00
|
|
|
}
|
|
|
|
|
2009-03-05 18:50:36 -07:00
|
|
|
// An internal type but exported because it is cross-package; part of the implementation
|
2012-02-09 19:49:50 -07:00
|
|
|
// of the "go test" command.
|
2010-11-05 21:05:53 -06:00
|
|
|
type InternalTest struct {
|
2009-12-15 16:41:46 -07:00
|
|
|
Name string
|
|
|
|
F func(*T)
|
2008-11-19 15:38:05 -07:00
|
|
|
}
|
|
|
|
|
2010-11-05 21:05:53 -06:00
|
|
|
func tRunner(t *T, test *InternalTest) {
|
2011-11-30 10:01:46 -07:00
|
|
|
t.start = time.Now()
|
2012-01-12 11:18:12 -07:00
|
|
|
|
|
|
|
// When this goroutine is done, either because test.F(t)
|
2012-10-30 14:38:01 -06:00
|
|
|
// returned normally or because a test failure triggered
|
2012-01-12 11:18:12 -07:00
|
|
|
// a call to runtime.Goexit, record the duration and send
|
|
|
|
// a signal saying that the test is done.
|
|
|
|
defer func() {
|
testing: let runtime catch the panic.
It's not as pretty, but it deletes some irrelevant information from the
printout and avoids a dependency.
It also means the test binary will stop if a test panics. That's a feature,
not a bug.
Any output printed by the test appears before the panic traceback.
before:
--- FAIL: TestPanic (0.00 seconds)
fmt_test.go:19: HI
testing.go:257: runtime error: index out of range
/Users/r/go/src/pkg/testing/testing.go:257 (0x23998)
_func_003: t.Logf("%s\n%s", err, debug.Stack())
/Users/r/go/src/pkg/runtime/proc.c:1388 (0x10d2d)
panic: reflect·call(d->fn, d->args, d->siz);
/Users/r/go/src/pkg/runtime/runtime.c:128 (0x119b0)
panicstring: runtime·panic(err);
/Users/r/go/src/pkg/runtime/runtime.c:85 (0x11857)
panicindex: runtime·panicstring("index out of range");
/Users/r/go/src/pkg/fmt/fmt_test.go:21 (0x23d72)
TestPanic: a[10]=1
/Users/r/go/src/pkg/testing/testing.go:264 (0x21b75)
tRunner: test.F(t)
/Users/r/go/src/pkg/runtime/proc.c:258 (0xee9e)
goexit: runtime·goexit(void)
FAIL
after:
--- FAIL: TestPanic (0.00 seconds)
fmt_test.go:19: HI
panic: runtime error: index out of range [recovered]
panic: (*testing.T) (0xec3b0,0xf8400001c0)
goroutine 2 [running]:
testing._func_003(0x21f5fa8, 0x21f5100, 0x21f5fb8, 0x21f5e88)
/Users/r/go/src/pkg/testing/testing.go:259 +0x108
----- stack segment boundary -----
fmt_test.TestPanic(0xf8400001c0, 0x27603728)
/Users/r/go/src/pkg/fmt/fmt_test.go:21 +0x6b
testing.tRunner(0xf8400001c0, 0x18edb8, 0x0, 0x0)
/Users/r/go/src/pkg/testing/testing.go:264 +0x6f
created by testing.RunTests
/Users/r/go/src/pkg/testing/testing.go:343 +0x76e
goroutine 1 [chan receive]:
testing.RunTests(0x2000, 0x18edb8, 0x2400000024, 0x100000001, 0x200000001, ...)
/Users/r/go/src/pkg/testing/testing.go:344 +0x791
testing.Main(0x2000, 0x18edb8, 0x2400000024, 0x188a58, 0x800000008, ...)
/Users/r/go/src/pkg/testing/testing.go:275 +0x62
main.main()
/var/folders/++/+++Fn+++6+0++4RjPqRgNE++2Qk/-Tmp-/go-build743922747/fmt/_test/_testmain.go:129 +0x91
exit status 2
R=rsc, dsymonds
CC=golang-dev
https://golang.org/cl/5658048
2012-02-13 20:53:30 -07:00
|
|
|
t.duration = time.Now().Sub(t.start)
|
|
|
|
// If the test panicked, print any test output before dying.
|
2012-02-12 21:41:07 -07:00
|
|
|
if err := recover(); err != nil {
|
testing: let runtime catch the panic.
It's not as pretty, but it deletes some irrelevant information from the
printout and avoids a dependency.
It also means the test binary will stop if a test panics. That's a feature,
not a bug.
Any output printed by the test appears before the panic traceback.
before:
--- FAIL: TestPanic (0.00 seconds)
fmt_test.go:19: HI
testing.go:257: runtime error: index out of range
/Users/r/go/src/pkg/testing/testing.go:257 (0x23998)
_func_003: t.Logf("%s\n%s", err, debug.Stack())
/Users/r/go/src/pkg/runtime/proc.c:1388 (0x10d2d)
panic: reflect·call(d->fn, d->args, d->siz);
/Users/r/go/src/pkg/runtime/runtime.c:128 (0x119b0)
panicstring: runtime·panic(err);
/Users/r/go/src/pkg/runtime/runtime.c:85 (0x11857)
panicindex: runtime·panicstring("index out of range");
/Users/r/go/src/pkg/fmt/fmt_test.go:21 (0x23d72)
TestPanic: a[10]=1
/Users/r/go/src/pkg/testing/testing.go:264 (0x21b75)
tRunner: test.F(t)
/Users/r/go/src/pkg/runtime/proc.c:258 (0xee9e)
goexit: runtime·goexit(void)
FAIL
after:
--- FAIL: TestPanic (0.00 seconds)
fmt_test.go:19: HI
panic: runtime error: index out of range [recovered]
panic: (*testing.T) (0xec3b0,0xf8400001c0)
goroutine 2 [running]:
testing._func_003(0x21f5fa8, 0x21f5100, 0x21f5fb8, 0x21f5e88)
/Users/r/go/src/pkg/testing/testing.go:259 +0x108
----- stack segment boundary -----
fmt_test.TestPanic(0xf8400001c0, 0x27603728)
/Users/r/go/src/pkg/fmt/fmt_test.go:21 +0x6b
testing.tRunner(0xf8400001c0, 0x18edb8, 0x0, 0x0)
/Users/r/go/src/pkg/testing/testing.go:264 +0x6f
created by testing.RunTests
/Users/r/go/src/pkg/testing/testing.go:343 +0x76e
goroutine 1 [chan receive]:
testing.RunTests(0x2000, 0x18edb8, 0x2400000024, 0x100000001, 0x200000001, ...)
/Users/r/go/src/pkg/testing/testing.go:344 +0x791
testing.Main(0x2000, 0x18edb8, 0x2400000024, 0x188a58, 0x800000008, ...)
/Users/r/go/src/pkg/testing/testing.go:275 +0x62
main.main()
/var/folders/++/+++Fn+++6+0++4RjPqRgNE++2Qk/-Tmp-/go-build743922747/fmt/_test/_testmain.go:129 +0x91
exit status 2
R=rsc, dsymonds
CC=golang-dev
https://golang.org/cl/5658048
2012-02-13 20:53:30 -07:00
|
|
|
t.report()
|
|
|
|
panic(err)
|
2012-02-05 20:00:23 -07:00
|
|
|
}
|
2012-01-12 11:18:12 -07:00
|
|
|
t.signal <- t
|
|
|
|
}()
|
|
|
|
|
2009-12-15 16:41:46 -07:00
|
|
|
test.F(t)
|
2008-11-18 16:29:10 -07:00
|
|
|
}
|
|
|
|
|
2009-03-05 18:50:36 -07:00
|
|
|
// An internal function but exported because it is cross-package; part of the implementation
|
2012-02-09 19:49:50 -07:00
|
|
|
// of the "go test" command.
|
2011-11-01 20:05:34 -06:00
|
|
|
func Main(matchString func(pat, str string) (bool, error), tests []InternalTest, benchmarks []InternalBenchmark, examples []InternalExample) {
|
2009-12-15 16:41:46 -07:00
|
|
|
flag.Parse()
|
2011-06-27 11:31:40 -06:00
|
|
|
parseCpuList()
|
2011-03-16 10:53:58 -06:00
|
|
|
|
|
|
|
before()
|
2011-03-31 16:27:51 -06:00
|
|
|
startAlarm()
|
2012-03-07 12:54:31 -07:00
|
|
|
haveExamples = len(examples) > 0
|
2011-10-06 12:56:17 -06:00
|
|
|
testOk := RunTests(matchString, tests)
|
2012-02-26 18:49:10 -07:00
|
|
|
exampleOk := RunExamples(matchString, examples)
|
2011-10-06 12:56:17 -06:00
|
|
|
if !testOk || !exampleOk {
|
2011-11-15 11:09:19 -07:00
|
|
|
fmt.Println("FAIL")
|
2011-10-06 12:56:17 -06:00
|
|
|
os.Exit(1)
|
|
|
|
}
|
2011-11-15 11:09:19 -07:00
|
|
|
fmt.Println("PASS")
|
2011-03-31 16:27:51 -06:00
|
|
|
stopAlarm()
|
2011-03-23 16:17:14 -06:00
|
|
|
RunBenchmarks(matchString, benchmarks)
|
|
|
|
after()
|
|
|
|
}
|
|
|
|
|
2011-12-20 10:51:39 -07:00
|
|
|
func (t *T) report() {
|
|
|
|
tstr := fmt.Sprintf("(%.2f seconds)", t.duration.Seconds())
|
2011-10-06 10:58:36 -06:00
|
|
|
format := "--- %s: %s %s\n%s"
|
2012-07-25 11:17:27 -06:00
|
|
|
if t.Failed() {
|
2011-12-20 10:51:39 -07:00
|
|
|
fmt.Printf(format, "FAIL", t.name, tstr, t.output)
|
2011-10-06 10:58:36 -06:00
|
|
|
} else if *chatty {
|
testing: add Skip/Skipf
This proposal adds two methods to *testing.T, Skip(string) and Skipf(format, args...). The intent is to replace the existing log and return idiom which currently has 97 cases in the standard library. A simple example of Skip would be:
func TestSomethingLong(t *testing.T) {
if testing.Short() {
t.Skip("skipping test in short mode.")
// not reached
}
... time consuming work
}
Additionally tests can be skipped anywhere a *testing.T is present. An example adapted from the go.crypto/ssh/test package would be:
// setup performs some before test action and returns a func()
// which should be defered by the caller for cleanup.
func setup(t *testing.T) func() {
...
cmd := exec.Command("sshd", "-f", configfile, "-i")
if err := cmd.Run(); err != nil {
t.Skipf("could not execute mock ssh server: %v", err)
}
...
return func() {
// stop subprocess and cleanup
}
}
func TestDialMockServer(t *testing.T) {
cleanup := setup(t)
defer cleanup()
...
}
In verbose mode tests that are skipped are now reported as a SKIP, rather than PASS.
Link to discussion: https://groups.google.com/d/topic/golang-nuts/BqorNARzt4U/discussion
R=adg, rsc, r, n13m3y3r
CC=golang-dev, minux.ma
https://golang.org/cl/6501094
2013-01-22 16:22:33 -07:00
|
|
|
if t.Skipped() {
|
|
|
|
fmt.Printf(format, "SKIP", t.name, tstr, t.output)
|
|
|
|
} else {
|
|
|
|
fmt.Printf(format, "PASS", t.name, tstr, t.output)
|
|
|
|
}
|
2011-10-06 10:58:36 -06:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2013-02-01 19:01:32 -07:00
|
|
|
// Skip is equivalent to Log followed by SkipNow.
|
testing: add Skip/Skipf
This proposal adds two methods to *testing.T, Skip(string) and Skipf(format, args...). The intent is to replace the existing log and return idiom which currently has 97 cases in the standard library. A simple example of Skip would be:
func TestSomethingLong(t *testing.T) {
if testing.Short() {
t.Skip("skipping test in short mode.")
// not reached
}
... time consuming work
}
Additionally tests can be skipped anywhere a *testing.T is present. An example adapted from the go.crypto/ssh/test package would be:
// setup performs some before test action and returns a func()
// which should be defered by the caller for cleanup.
func setup(t *testing.T) func() {
...
cmd := exec.Command("sshd", "-f", configfile, "-i")
if err := cmd.Run(); err != nil {
t.Skipf("could not execute mock ssh server: %v", err)
}
...
return func() {
// stop subprocess and cleanup
}
}
func TestDialMockServer(t *testing.T) {
cleanup := setup(t)
defer cleanup()
...
}
In verbose mode tests that are skipped are now reported as a SKIP, rather than PASS.
Link to discussion: https://groups.google.com/d/topic/golang-nuts/BqorNARzt4U/discussion
R=adg, rsc, r, n13m3y3r
CC=golang-dev, minux.ma
https://golang.org/cl/6501094
2013-01-22 16:22:33 -07:00
|
|
|
func (t *T) Skip(args ...interface{}) {
|
|
|
|
t.log(fmt.Sprintln(args...))
|
|
|
|
t.SkipNow()
|
|
|
|
}
|
|
|
|
|
2013-02-01 19:01:32 -07:00
|
|
|
// Skipf is equivalent to Logf followed by SkipNow.
|
testing: add Skip/Skipf
This proposal adds two methods to *testing.T, Skip(string) and Skipf(format, args...). The intent is to replace the existing log and return idiom which currently has 97 cases in the standard library. A simple example of Skip would be:
func TestSomethingLong(t *testing.T) {
if testing.Short() {
t.Skip("skipping test in short mode.")
// not reached
}
... time consuming work
}
Additionally tests can be skipped anywhere a *testing.T is present. An example adapted from the go.crypto/ssh/test package would be:
// setup performs some before test action and returns a func()
// which should be defered by the caller for cleanup.
func setup(t *testing.T) func() {
...
cmd := exec.Command("sshd", "-f", configfile, "-i")
if err := cmd.Run(); err != nil {
t.Skipf("could not execute mock ssh server: %v", err)
}
...
return func() {
// stop subprocess and cleanup
}
}
func TestDialMockServer(t *testing.T) {
cleanup := setup(t)
defer cleanup()
...
}
In verbose mode tests that are skipped are now reported as a SKIP, rather than PASS.
Link to discussion: https://groups.google.com/d/topic/golang-nuts/BqorNARzt4U/discussion
R=adg, rsc, r, n13m3y3r
CC=golang-dev, minux.ma
https://golang.org/cl/6501094
2013-01-22 16:22:33 -07:00
|
|
|
func (t *T) Skipf(format string, args ...interface{}) {
|
|
|
|
t.log(fmt.Sprintf(format, args...))
|
|
|
|
t.SkipNow()
|
|
|
|
}
|
|
|
|
|
2013-02-01 19:01:32 -07:00
|
|
|
// SkipNow marks the test as having been skipped and stops its execution.
|
|
|
|
// Execution will continue at the next test or benchmark. See also FailNow.
|
|
|
|
// SkipNow must be called from the goroutine running the test, not from
|
|
|
|
// other goroutines created during the test. Calling SkipNow does not stop
|
|
|
|
// those other goroutines.
|
testing: add Skip/Skipf
This proposal adds two methods to *testing.T, Skip(string) and Skipf(format, args...). The intent is to replace the existing log and return idiom which currently has 97 cases in the standard library. A simple example of Skip would be:
func TestSomethingLong(t *testing.T) {
if testing.Short() {
t.Skip("skipping test in short mode.")
// not reached
}
... time consuming work
}
Additionally tests can be skipped anywhere a *testing.T is present. An example adapted from the go.crypto/ssh/test package would be:
// setup performs some before test action and returns a func()
// which should be defered by the caller for cleanup.
func setup(t *testing.T) func() {
...
cmd := exec.Command("sshd", "-f", configfile, "-i")
if err := cmd.Run(); err != nil {
t.Skipf("could not execute mock ssh server: %v", err)
}
...
return func() {
// stop subprocess and cleanup
}
}
func TestDialMockServer(t *testing.T) {
cleanup := setup(t)
defer cleanup()
...
}
In verbose mode tests that are skipped are now reported as a SKIP, rather than PASS.
Link to discussion: https://groups.google.com/d/topic/golang-nuts/BqorNARzt4U/discussion
R=adg, rsc, r, n13m3y3r
CC=golang-dev, minux.ma
https://golang.org/cl/6501094
2013-01-22 16:22:33 -07:00
|
|
|
func (t *T) SkipNow() {
|
|
|
|
t.skip()
|
|
|
|
runtime.Goexit()
|
|
|
|
}
|
|
|
|
|
|
|
|
func (t *T) skip() {
|
|
|
|
t.mu.Lock()
|
|
|
|
defer t.mu.Unlock()
|
|
|
|
t.skipped = true
|
|
|
|
}
|
|
|
|
|
2013-02-01 19:01:32 -07:00
|
|
|
// Skipped reports whether the test was skipped.
|
testing: add Skip/Skipf
This proposal adds two methods to *testing.T, Skip(string) and Skipf(format, args...). The intent is to replace the existing log and return idiom which currently has 97 cases in the standard library. A simple example of Skip would be:
func TestSomethingLong(t *testing.T) {
if testing.Short() {
t.Skip("skipping test in short mode.")
// not reached
}
... time consuming work
}
Additionally tests can be skipped anywhere a *testing.T is present. An example adapted from the go.crypto/ssh/test package would be:
// setup performs some before test action and returns a func()
// which should be defered by the caller for cleanup.
func setup(t *testing.T) func() {
...
cmd := exec.Command("sshd", "-f", configfile, "-i")
if err := cmd.Run(); err != nil {
t.Skipf("could not execute mock ssh server: %v", err)
}
...
return func() {
// stop subprocess and cleanup
}
}
func TestDialMockServer(t *testing.T) {
cleanup := setup(t)
defer cleanup()
...
}
In verbose mode tests that are skipped are now reported as a SKIP, rather than PASS.
Link to discussion: https://groups.google.com/d/topic/golang-nuts/BqorNARzt4U/discussion
R=adg, rsc, r, n13m3y3r
CC=golang-dev, minux.ma
https://golang.org/cl/6501094
2013-01-22 16:22:33 -07:00
|
|
|
func (t *T) Skipped() bool {
|
|
|
|
t.mu.RLock()
|
|
|
|
defer t.mu.RUnlock()
|
|
|
|
return t.skipped
|
|
|
|
}
|
|
|
|
|
2011-11-01 20:05:34 -06:00
|
|
|
func RunTests(matchString func(pat, str string) (bool, error), tests []InternalTest) (ok bool) {
|
2011-10-06 12:56:17 -06:00
|
|
|
ok = true
|
2012-03-07 12:54:31 -07:00
|
|
|
if len(tests) == 0 && !haveExamples {
|
2011-10-06 10:58:36 -06:00
|
|
|
fmt.Fprintln(os.Stderr, "testing: warning: no tests to run")
|
|
|
|
return
|
2008-11-19 20:11:01 -07:00
|
|
|
}
|
2011-10-06 10:58:36 -06:00
|
|
|
for _, procs := range cpuList {
|
|
|
|
runtime.GOMAXPROCS(procs)
|
2011-12-22 11:43:54 -07:00
|
|
|
// We build a new channel tree for each run of the loop.
|
|
|
|
// collector merges in one channel all the upstream signals from parallel tests.
|
2011-12-22 12:08:51 -07:00
|
|
|
// If all tests pump to the same channel, a bug can occur where a test
|
2011-12-22 12:23:10 -07:00
|
|
|
// kicks off a goroutine that Fails, yet the test still delivers a completion signal,
|
2011-12-22 12:08:51 -07:00
|
|
|
// which skews the counting.
|
2011-12-22 11:43:54 -07:00
|
|
|
var collector = make(chan interface{})
|
2011-10-06 10:58:36 -06:00
|
|
|
|
|
|
|
numParallel := 0
|
|
|
|
startParallel := make(chan bool)
|
|
|
|
|
|
|
|
for i := 0; i < len(tests); i++ {
|
|
|
|
matched, err := matchString(*match, tests[i].Name)
|
|
|
|
if err != nil {
|
2011-11-15 11:09:19 -07:00
|
|
|
fmt.Fprintf(os.Stderr, "testing: invalid regexp for -test.run: %s\n", err)
|
2011-10-06 10:58:36 -06:00
|
|
|
os.Exit(1)
|
|
|
|
}
|
|
|
|
if !matched {
|
|
|
|
continue
|
|
|
|
}
|
2011-06-27 11:31:40 -06:00
|
|
|
testName := tests[i].Name
|
|
|
|
if procs != 1 {
|
|
|
|
testName = fmt.Sprintf("%s-%d", tests[i].Name, procs)
|
|
|
|
}
|
2011-12-20 10:51:39 -07:00
|
|
|
t := &T{
|
|
|
|
common: common{
|
2011-12-22 11:43:54 -07:00
|
|
|
signal: make(chan interface{}),
|
2011-12-20 10:51:39 -07:00
|
|
|
},
|
|
|
|
name: testName,
|
|
|
|
startParallel: startParallel,
|
|
|
|
}
|
|
|
|
t.self = t
|
2011-06-27 11:31:40 -06:00
|
|
|
if *chatty {
|
2011-11-15 11:09:19 -07:00
|
|
|
fmt.Printf("=== RUN %s\n", t.name)
|
2011-06-27 11:31:40 -06:00
|
|
|
}
|
|
|
|
go tRunner(t, &tests[i])
|
2011-12-20 10:51:39 -07:00
|
|
|
out := (<-t.signal).(*T)
|
2011-10-06 10:58:36 -06:00
|
|
|
if out == nil { // Parallel run.
|
2011-12-22 11:43:54 -07:00
|
|
|
go func() {
|
|
|
|
collector <- <-t.signal
|
|
|
|
}()
|
2011-10-06 10:58:36 -06:00
|
|
|
numParallel++
|
|
|
|
continue
|
2011-06-27 11:31:40 -06:00
|
|
|
}
|
2011-12-20 10:51:39 -07:00
|
|
|
t.report()
|
2012-07-25 11:17:27 -06:00
|
|
|
ok = ok && !out.Failed()
|
2011-10-06 10:58:36 -06:00
|
|
|
}
|
|
|
|
|
|
|
|
running := 0
|
|
|
|
for numParallel+running > 0 {
|
|
|
|
if running < *parallel && numParallel > 0 {
|
|
|
|
startParallel <- true
|
|
|
|
running++
|
|
|
|
numParallel--
|
|
|
|
continue
|
2011-06-27 11:31:40 -06:00
|
|
|
}
|
2011-12-22 11:43:54 -07:00
|
|
|
t := (<-collector).(*T)
|
2011-12-20 10:51:39 -07:00
|
|
|
t.report()
|
2012-07-25 11:17:27 -06:00
|
|
|
ok = ok && !t.Failed()
|
2011-10-06 10:58:36 -06:00
|
|
|
running--
|
2008-11-18 16:29:10 -07:00
|
|
|
}
|
|
|
|
}
|
2011-10-06 12:56:17 -06:00
|
|
|
return
|
2008-11-18 16:29:10 -07:00
|
|
|
}
|
2011-03-16 10:53:58 -06:00
|
|
|
|
|
|
|
// before runs before all testing.
|
|
|
|
func before() {
|
|
|
|
if *memProfileRate > 0 {
|
|
|
|
runtime.MemProfileRate = *memProfileRate
|
|
|
|
}
|
2011-03-23 16:17:14 -06:00
|
|
|
if *cpuProfile != "" {
|
2011-04-05 00:42:14 -06:00
|
|
|
f, err := os.Create(*cpuProfile)
|
2011-03-23 16:17:14 -06:00
|
|
|
if err != nil {
|
|
|
|
fmt.Fprintf(os.Stderr, "testing: %s", err)
|
|
|
|
return
|
|
|
|
}
|
|
|
|
if err := pprof.StartCPUProfile(f); err != nil {
|
|
|
|
fmt.Fprintf(os.Stderr, "testing: can't start cpu profile: %s", err)
|
|
|
|
f.Close()
|
|
|
|
return
|
|
|
|
}
|
|
|
|
// Could save f so after can call f.Close; not worth the effort.
|
|
|
|
}
|
pprof: add goroutine blocking profiling
The profiler collects goroutine blocking information similar to Google Perf Tools.
You may see an example of the profile (converted to svg) attached to
http://code.google.com/p/go/issues/detail?id=3946
The public API changes are:
+pkg runtime, func BlockProfile([]BlockProfileRecord) (int, bool)
+pkg runtime, func SetBlockProfileRate(int)
+pkg runtime, method (*BlockProfileRecord) Stack() []uintptr
+pkg runtime, type BlockProfileRecord struct
+pkg runtime, type BlockProfileRecord struct, Count int64
+pkg runtime, type BlockProfileRecord struct, Cycles int64
+pkg runtime, type BlockProfileRecord struct, embedded StackRecord
R=rsc, dave, minux.ma, r
CC=gobot, golang-dev, r, remyoudompheng
https://golang.org/cl/6443115
2012-10-06 02:56:04 -06:00
|
|
|
if *blockProfile != "" && *blockProfileRate >= 0 {
|
|
|
|
runtime.SetBlockProfileRate(*blockProfileRate)
|
|
|
|
}
|
2011-03-16 10:53:58 -06:00
|
|
|
}
|
|
|
|
|
|
|
|
// after runs after all testing.
|
|
|
|
func after() {
|
2011-03-23 16:17:14 -06:00
|
|
|
if *cpuProfile != "" {
|
|
|
|
pprof.StopCPUProfile() // flushes profile to disk
|
2011-03-16 10:53:58 -06:00
|
|
|
}
|
2011-03-23 16:17:14 -06:00
|
|
|
if *memProfile != "" {
|
2011-04-05 00:42:14 -06:00
|
|
|
f, err := os.Create(*memProfile)
|
2011-03-23 16:17:14 -06:00
|
|
|
if err != nil {
|
|
|
|
fmt.Fprintf(os.Stderr, "testing: %s", err)
|
|
|
|
return
|
|
|
|
}
|
|
|
|
if err = pprof.WriteHeapProfile(f); err != nil {
|
|
|
|
fmt.Fprintf(os.Stderr, "testing: can't write %s: %s", *memProfile, err)
|
|
|
|
}
|
|
|
|
f.Close()
|
2011-03-16 10:53:58 -06:00
|
|
|
}
|
pprof: add goroutine blocking profiling
The profiler collects goroutine blocking information similar to Google Perf Tools.
You may see an example of the profile (converted to svg) attached to
http://code.google.com/p/go/issues/detail?id=3946
The public API changes are:
+pkg runtime, func BlockProfile([]BlockProfileRecord) (int, bool)
+pkg runtime, func SetBlockProfileRate(int)
+pkg runtime, method (*BlockProfileRecord) Stack() []uintptr
+pkg runtime, type BlockProfileRecord struct
+pkg runtime, type BlockProfileRecord struct, Count int64
+pkg runtime, type BlockProfileRecord struct, Cycles int64
+pkg runtime, type BlockProfileRecord struct, embedded StackRecord
R=rsc, dave, minux.ma, r
CC=gobot, golang-dev, r, remyoudompheng
https://golang.org/cl/6443115
2012-10-06 02:56:04 -06:00
|
|
|
if *blockProfile != "" && *blockProfileRate >= 0 {
|
|
|
|
f, err := os.Create(*blockProfile)
|
|
|
|
if err != nil {
|
|
|
|
fmt.Fprintf(os.Stderr, "testing: %s", err)
|
|
|
|
return
|
|
|
|
}
|
|
|
|
if err = pprof.Lookup("block").WriteTo(f, 0); err != nil {
|
|
|
|
fmt.Fprintf(os.Stderr, "testing: can't write %s: %s", *blockProfile, err)
|
|
|
|
}
|
|
|
|
f.Close()
|
|
|
|
}
|
2011-03-16 10:53:58 -06:00
|
|
|
}
|
2011-03-31 16:27:51 -06:00
|
|
|
|
|
|
|
var timer *time.Timer
|
|
|
|
|
|
|
|
// startAlarm starts an alarm if requested.
|
|
|
|
func startAlarm() {
|
|
|
|
if *timeout > 0 {
|
2011-12-24 22:07:05 -07:00
|
|
|
timer = time.AfterFunc(*timeout, alarm)
|
2011-03-31 16:27:51 -06:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
// stopAlarm turns off the alarm.
|
|
|
|
func stopAlarm() {
|
|
|
|
if *timeout > 0 {
|
|
|
|
timer.Stop()
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
// alarm is called if the timeout expires.
|
|
|
|
func alarm() {
|
|
|
|
panic("test timed out")
|
|
|
|
}
|
2011-06-27 11:31:40 -06:00
|
|
|
|
|
|
|
func parseCpuList() {
|
|
|
|
if len(*cpuListStr) == 0 {
|
|
|
|
cpuList = append(cpuList, runtime.GOMAXPROCS(-1))
|
|
|
|
} else {
|
2011-06-27 17:43:14 -06:00
|
|
|
for _, val := range strings.Split(*cpuListStr, ",") {
|
2011-06-27 11:31:40 -06:00
|
|
|
cpu, err := strconv.Atoi(val)
|
|
|
|
if err != nil || cpu <= 0 {
|
2011-11-15 11:09:19 -07:00
|
|
|
fmt.Fprintf(os.Stderr, "testing: invalid value %q for -test.cpu", val)
|
2011-06-27 11:31:40 -06:00
|
|
|
os.Exit(1)
|
|
|
|
}
|
|
|
|
cpuList = append(cpuList, cpu)
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|