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go/internal/stack/stack_test.go
Ian Cottrell a02cf32866 internal/stack: adding an internal stack dump parsing library
This can be used either to directly parse runtime.Stack output or
process text that includes stack dumps, like test timeouts or panics.
It includes a binary, gostacks that processes stdin to stdout replacing
stack dumps in place.

Change-Id: Id7b1cfd69b8aea36c66f12ec0bdf38b68cba5afb
Reviewed-on: https://go-review.googlesource.com/c/tools/+/232658
Run-TryBot: Ian Cottrell <iancottrell@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
2020-05-27 14:25:21 +00:00

194 lines
3.9 KiB
Go

// Copyright 2020 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package stack_test
import (
"bytes"
"strings"
"testing"
"golang.org/x/tools/internal/stack"
)
func TestProcess(t *testing.T) {
for _, test := range []struct{ name, input, expect string }{{
name: `empty`,
input: ``,
expect: ``,
}, {
name: `no_frame`,
input: `goroutine 1 [running]:`,
expect: `
[running]: $1
1 goroutines, 1 unique
`,
}, {
name: `one_frame`,
input: `
goroutine 1 [running]:
package.function(args)
file.go:10
`,
expect: `
[running]: $1
file.go:10: function
1 goroutines, 1 unique
`,
}, {
name: `one_call`,
input: `
goroutine 1 [running]:
package1.functionA(args)
file1.go:10
package2.functionB(args)
file2.go:20
package3.functionC(args)
file3.go:30
`,
expect: `
[running]: $1
file1.go:10: functionA
file2.go:20: functionB
file3.go:30: functionC
1 goroutines, 1 unique
`,
}, {
name: `two_call`,
input: `
goroutine 1 [running]:
package1.functionA(args)
file1.go:10
goroutine 2 [running]:
package2.functionB(args)
file2.go:20
`,
expect: `
[running]: $1
file1.go:10: functionA
[running]: $2
file2.go:20: functionB
2 goroutines, 2 unique
`,
}, {
name: `merge_call`,
input: `
goroutine 1 [running]:
package1.functionA(args)
file1.go:10
goroutine 2 [running]:
package1.functionA(args)
file1.go:10
`,
expect: `
[running]: $1, $2
file1.go:10: functionA
2 goroutines, 1 unique
`,
}, {
name: `alternating_call`,
input: `
goroutine 1 [running]:
package1.functionA(args)
file1.go:10
goroutine 2 [running]:
package2.functionB(args)
file2.go:20
goroutine 3 [running]:
package1.functionA(args)
file1.go:10
goroutine 4 [running]:
package2.functionB(args)
file2.go:20
goroutine 5 [running]:
package1.functionA(args)
file1.go:10
goroutine 6 [running]:
package2.functionB(args)
file2.go:20
`,
expect: `
[running]: $1, $3, $5
file1.go:10: functionA
[running]: $2, $4, $6
file2.go:20: functionB
6 goroutines, 2 unique
`,
}, {
name: `sort_calls`,
input: `
goroutine 1 [running]:
package3.functionC(args)
file3.go:30
goroutine 2 [running]:
package2.functionB(args)
file2.go:20
goroutine 3 [running]:
package1.functionA(args)
file1.go:10
`,
expect: `
[running]: $3
file1.go:10: functionA
[running]: $2
file2.go:20: functionB
[running]: $1
file3.go:30: functionC
3 goroutines, 3 unique
`,
}, {
name: `real_single`,
input: `
panic: oops
goroutine 53 [running]:
golang.org/x/tools/internal/jsonrpc2_test.testHandler.func1(0x1240c20, 0xc000013350, 0xc0000133b0, 0x1240ca0, 0xc00002ab00, 0x3, 0x3)
/work/tools/internal/jsonrpc2/jsonrpc2_test.go:160 +0x74c
golang.org/x/tools/internal/jsonrpc2.(*Conn).Run(0xc000204330, 0x1240c20, 0xc000204270, 0x1209570, 0xc000212120, 0x1242700)
/work/tools/internal/jsonrpc2/jsonrpc2.go:187 +0x777
golang.org/x/tools/internal/jsonrpc2_test.run.func1(0x123ebe0, 0xc000206018, 0x123ec20, 0xc000206010, 0xc0002080a0, 0xc000204330, 0x1240c20, 0xc000204270, 0xc000212120)
/work/tools/internal/jsonrpc2/jsonrpc2_test.go:131 +0xe2
created by golang.org/x/tools/internal/jsonrpc2_test.run
/work/tools/internal/jsonrpc2/jsonrpc2_test.go:121 +0x263
FAIL golang.org/x/tools/internal/jsonrpc2 0.252s
FAIL
`,
expect: `
panic: oops
[running]: $53
/work/tools/internal/jsonrpc2/jsonrpc2_test.go:160: testHandler.func1
/work/tools/internal/jsonrpc2/jsonrpc2.go:187: (*Conn).Run
/work/tools/internal/jsonrpc2/jsonrpc2_test.go:131: run.func1
/work/tools/internal/jsonrpc2/jsonrpc2_test.go:121: run
1 goroutines, 1 unique
FAIL golang.org/x/tools/internal/jsonrpc2 0.252s
FAIL
`,
}} {
t.Run(test.name, func(t *testing.T) {
buf := &bytes.Buffer{}
stack.Process(buf, strings.NewReader(test.input))
expect := strings.TrimSpace(test.expect)
got := strings.TrimSpace(buf.String())
if got != expect {
t.Errorf("got:\n%s\nexpect:\n%s", got, expect)
}
})
}
}