mirror of
https://github.com/golang/go
synced 2024-09-30 02:14:29 -06:00
go/parser: use test harness for short tests
R=golang-dev, rsc CC=golang-dev https://golang.org/cl/5782044
This commit is contained in:
Robert Griesemer
parent
3133b14b30
commit
9b7b574edc
@ -34,11 +34,14 @@ import (
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const testdata = "testdata"
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// getFile assumes that each filename occurs at most once
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func getFile(filename string) (file *token.File) {
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fset.Iterate(func(f *token.File) bool {
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if f.Name() == filename {
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if file != nil {
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panic(filename + " used multiple times")
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}
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file = f
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return false // end iteration
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}
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return true
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})
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@ -127,8 +130,8 @@ func compareErrors(t *testing.T, expected map[token.Pos]string, found scanner.Er
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}
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}
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func checkErrors(t *testing.T, filename string) {
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src, err := ioutil.ReadFile(filename)
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func checkErrors(t *testing.T, filename string, input interface{}) {
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src, err := readSource(filename, input)
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if err != nil {
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t.Error(err)
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return
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@ -157,7 +160,7 @@ func TestErrors(t *testing.T) {
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for _, fi := range list {
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name := fi.Name()
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if !fi.IsDir() && !strings.HasPrefix(name, ".") && strings.HasSuffix(name, ".src") {
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checkErrors(t, filepath.Join(testdata, name))
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checkErrors(t, filepath.Join(testdata, name), nil)
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}
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}
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}
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@ -14,87 +14,14 @@ import (
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var fset = token.NewFileSet()
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var illegalInputs = []interface{}{
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nil,
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3.14,
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[]byte(nil),
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"foo!",
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`package p; func f() { if /* should have condition */ {} };`,
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`package p; func f() { if ; /* should have condition */ {} };`,
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`package p; func f() { if f(); /* should have condition */ {} };`,
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`package p; const c; /* should have constant value */`,
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`package p; func f() { if _ = range x; true {} };`,
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`package p; func f() { switch _ = range x; true {} };`,
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`package p; func f() { for _ = range x ; ; {} };`,
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`package p; func f() { for ; ; _ = range x {} };`,
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`package p; func f() { for ; _ = range x ; {} };`,
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`package p; func f() { switch t = t.(type) {} };`,
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`package p; func f() { switch t, t = t.(type) {} };`,
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`package p; func f() { switch t = t.(type), t {} };`,
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`package p; var a = [1]int; /* illegal expression */`,
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`package p; var a = [...]int; /* illegal expression */`,
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`package p; var a = struct{} /* illegal expression */`,
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`package p; var a = func(); /* illegal expression */`,
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`package p; var a = interface{} /* illegal expression */`,
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`package p; var a = []int /* illegal expression */`,
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`package p; var a = map[int]int /* illegal expression */`,
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`package p; var a = chan int; /* illegal expression */`,
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`package p; var a = []int{[]int}; /* illegal expression */`,
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`package p; var a = ([]int); /* illegal expression */`,
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`package p; var a = a[[]int:[]int]; /* illegal expression */`,
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`package p; var a = <- chan int; /* illegal expression */`,
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`package p; func f() { select { case _ <- chan int: } };`,
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}
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func TestParseIllegalInputs(t *testing.T) {
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for _, src := range illegalInputs {
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_, err := ParseFile(fset, "", src, 0)
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if err == nil {
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t.Errorf("ParseFile(%v) should have failed", src)
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}
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}
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}
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var validPrograms = []string{
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"package p\n",
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`package p;`,
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`package p; import "fmt"; func f() { fmt.Println("Hello, World!") };`,
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`package p; func f() { if f(T{}) {} };`,
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`package p; func f() { _ = (<-chan int)(x) };`,
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`package p; func f() { _ = (<-chan <-chan int)(x) };`,
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`package p; func f(func() func() func());`,
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`package p; func f(...T);`,
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`package p; func f(float, ...int);`,
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`package p; func f(x int, a ...int) { f(0, a...); f(1, a...,) };`,
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`package p; func f(int,) {};`,
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`package p; func f(...int,) {};`,
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`package p; func f(x ...int,) {};`,
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`package p; type T []int; var a []bool; func f() { if a[T{42}[0]] {} };`,
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`package p; type T []int; func g(int) bool { return true }; func f() { if g(T{42}[0]) {} };`,
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`package p; type T []int; func f() { for _ = range []int{T{42}[0]} {} };`,
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`package p; var a = T{{1, 2}, {3, 4}}`,
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`package p; func f() { select { case <- c: case c <- d: case c <- <- d: case <-c <- d: } };`,
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`package p; func f() { select { case x := (<-c): } };`,
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`package p; func f() { if ; true {} };`,
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`package p; func f() { switch ; {} };`,
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`package p; func f() { for _ = range "foo" + "bar" {} };`,
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}
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func TestParseValidPrograms(t *testing.T) {
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for _, src := range validPrograms {
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_, err := ParseFile(fset, "", src, SpuriousErrors)
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if err != nil {
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t.Errorf("ParseFile(%q): %v", src, err)
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}
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}
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}
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var validFiles = []string{
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"parser.go",
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"parser_test.go",
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"error_test.go",
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"short_test.go",
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}
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func TestParse3(t *testing.T) {
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func TestParse(t *testing.T) {
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for _, filename := range validFiles {
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_, err := ParseFile(fset, filename, nil, DeclarationErrors)
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if err != nil {
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@ -116,7 +43,7 @@ func nameFilter(filename string) bool {
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func dirFilter(f os.FileInfo) bool { return nameFilter(f.Name()) }
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func TestParse4(t *testing.T) {
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func TestParseDir(t *testing.T) {
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path := "."
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pkgs, err := ParseDir(fset, path, dirFilter, 0)
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if err != nil {
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@ -158,7 +85,7 @@ func TestParseExpr(t *testing.T) {
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}
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// it must not crash
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for _, src := range validPrograms {
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for _, src := range valids {
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ParseExpr(src)
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}
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}
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75
src/pkg/go/parser/short_test.go
Normal file
75
src/pkg/go/parser/short_test.go
Normal file
@ -0,0 +1,75 @@
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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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// This file contains test cases for short valid and invalid programs.
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package parser
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import "testing"
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var valids = []string{
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"package p\n",
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`package p;`,
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`package p; import "fmt"; func f() { fmt.Println("Hello, World!") };`,
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`package p; func f() { if f(T{}) {} };`,
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`package p; func f() { _ = (<-chan int)(x) };`,
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`package p; func f() { _ = (<-chan <-chan int)(x) };`,
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`package p; func f(func() func() func());`,
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`package p; func f(...T);`,
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`package p; func f(float, ...int);`,
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`package p; func f(x int, a ...int) { f(0, a...); f(1, a...,) };`,
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`package p; func f(int,) {};`,
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`package p; func f(...int,) {};`,
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`package p; func f(x ...int,) {};`,
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`package p; type T []int; var a []bool; func f() { if a[T{42}[0]] {} };`,
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`package p; type T []int; func g(int) bool { return true }; func f() { if g(T{42}[0]) {} };`,
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`package p; type T []int; func f() { for _ = range []int{T{42}[0]} {} };`,
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`package p; var a = T{{1, 2}, {3, 4}}`,
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`package p; func f() { select { case <- c: case c <- d: case c <- <- d: case <-c <- d: } };`,
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`package p; func f() { select { case x := (<-c): } };`,
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`package p; func f() { if ; true {} };`,
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`package p; func f() { switch ; {} };`,
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`package p; func f() { for _ = range "foo" + "bar" {} };`,
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}
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func TestValid(t *testing.T) {
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for _, src := range valids {
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checkErrors(t, src, src)
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}
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}
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var invalids = []string{
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`foo /* ERROR "expected 'package'" */ !`,
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`package p; func f() { if { /* ERROR "expected operand" */ } };`,
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`package p; func f() { if ; { /* ERROR "expected operand" */ } };`,
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`package p; func f() { if f(); { /* ERROR "expected operand" */ } };`,
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`package p; const c; /* ERROR "expected '='" */`,
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`package p; func f() { if _ /* ERROR "expected condition" */ = range x; true {} };`,
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`package p; func f() { switch _ /* ERROR "expected condition" */ = range x; true {} };`,
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`package p; func f() { for _ = range x ; /* ERROR "expected '{'" */ ; {} };`,
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`package p; func f() { for ; ; _ = range /* ERROR "expected operand" */ x {} };`,
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`package p; func f() { for ; _ /* ERROR "expected condition" */ = range x ; {} };`,
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`package p; func f() { switch t /* ERROR "expected condition" */ = t.(type) {} };`,
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`package p; func f() { switch t /* ERROR "expected condition" */ , t = t.(type) {} };`,
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`package p; func f() { switch t /* ERROR "expected condition" */ = t.(type), t {} };`,
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`package p; var a = [ /* ERROR "expected expression" */ 1]int;`,
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`package p; var a = [ /* ERROR "expected expression" */ ...]int;`,
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`package p; var a = struct /* ERROR "expected expression" */ {}`,
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`package p; var a = func /* ERROR "expected expression" */ ();`,
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`package p; var a = interface /* ERROR "expected expression" */ {}`,
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`package p; var a = [ /* ERROR "expected expression" */ ]int`,
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`package p; var a = map /* ERROR "expected expression" */ [int]int`,
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`package p; var a = chan /* ERROR "expected expression" */ int;`,
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`package p; var a = []int{[ /* ERROR "expected expression" */ ]int};`,
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`package p; var a = ( /* ERROR "expected expression" */ []int);`,
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`package p; var a = a[[ /* ERROR "expected expression" */ ]int:[]int];`,
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`package p; var a = <- /* ERROR "expected expression" */ chan int;`,
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`package p; func f() { select { case _ <- chan /* ERROR "expected expression" */ int: } };`,
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}
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func TestInvalid(t *testing.T) {
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for _, src := range invalids {
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checkErrors(t, src, src)
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}
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}
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