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// Copyright 2011 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 build
import (
"io"
"os"
"path/filepath"
"reflect"
"runtime"
"strings"
"testing"
)
func TestMatch(t *testing.T) {
ctxt := Default
what := "default"
match := func(tag string, want map[string]bool) {
m := make(map[string]bool)
if !ctxt.match(tag, m) {
t.Errorf("%s context should match %s, does not", what, tag)
}
if !reflect.DeepEqual(m, want) {
t.Errorf("%s tags = %v, want %v", tag, m, want)
}
}
nomatch := func(tag string, want map[string]bool) {
m := make(map[string]bool)
if ctxt.match(tag, m) {
t.Errorf("%s context should NOT match %s, does", what, tag)
}
if !reflect.DeepEqual(m, want) {
t.Errorf("%s tags = %v, want %v", tag, m, want)
}
}
match(runtime.GOOS+","+runtime.GOARCH, map[string]bool{runtime.GOOS: true, runtime.GOARCH: true})
match(runtime.GOOS+","+runtime.GOARCH+",!foo", map[string]bool{runtime.GOOS: true, runtime.GOARCH: true, "foo": true})
nomatch(runtime.GOOS+","+runtime.GOARCH+",foo", map[string]bool{runtime.GOOS: true, runtime.GOARCH: true, "foo": true})
what = "modified"
ctxt.BuildTags = []string{"foo"}
match(runtime.GOOS+","+runtime.GOARCH, map[string]bool{runtime.GOOS: true, runtime.GOARCH: true})
match(runtime.GOOS+","+runtime.GOARCH+",foo", map[string]bool{runtime.GOOS: true, runtime.GOARCH: true, "foo": true})
nomatch(runtime.GOOS+","+runtime.GOARCH+",!foo", map[string]bool{runtime.GOOS: true, runtime.GOARCH: true, "foo": true})
match(runtime.GOOS+","+runtime.GOARCH+",!bar", map[string]bool{runtime.GOOS: true, runtime.GOARCH: true, "bar": true})
nomatch(runtime.GOOS+","+runtime.GOARCH+",bar", map[string]bool{runtime.GOOS: true, runtime.GOARCH: true, "bar": true})
nomatch("!", map[string]bool{})
}
func TestDotSlashImport(t *testing.T) {
p, err := ImportDir("testdata/other", 0)
if err != nil {
t.Fatal(err)
}
if len(p.Imports) != 1 || p.Imports[0] != "./file" {
t.Fatalf("testdata/other: Imports=%v, want [./file]", p.Imports)
}
p1, err := Import("./file", "testdata/other", 0)
if err != nil {
t.Fatal(err)
}
if p1.Name != "file" {
t.Fatalf("./file: Name=%q, want %q", p1.Name, "file")
}
dir := filepath.Clean("testdata/other/file") // Clean to use \ on Windows
if p1.Dir != dir {
t.Fatalf("./file: Dir=%q, want %q", p1.Name, dir)
}
}
func TestEmptyImport(t *testing.T) {
p, err := Import("", Default.GOROOT, FindOnly)
if err == nil {
t.Fatal(`Import("") returned nil error.`)
}
if p == nil {
t.Fatal(`Import("") returned nil package.`)
}
if p.ImportPath != "" {
t.Fatalf("ImportPath=%q, want %q.", p.ImportPath, "")
}
}
func TestEmptyFolderImport(t *testing.T) {
_, err := Import(".", "testdata/empty", 0)
if _, ok := err.(*NoGoError); !ok {
t.Fatal(`Import("testdata/empty") did not return NoGoError.`)
}
}
func TestMultiplePackageImport(t *testing.T) {
_, err := Import(".", "testdata/multi", 0)
if _, ok := err.(*MultiplePackageError); !ok {
t.Fatal(`Import("testdata/multi") did not return MultiplePackageError.`)
}
}
func TestLocalDirectory(t *testing.T) {
cwd, err := os.Getwd()
if err != nil {
t.Fatal(err)
}
p, err := ImportDir(cwd, 0)
if err != nil {
t.Fatal(err)
}
if p.ImportPath != "go/build" {
t.Fatalf("ImportPath=%q, want %q", p.ImportPath, "go/build")
}
}
func TestShouldBuild(t *testing.T) {
const file1 = "// +build tag1\n\n" +
"package main\n"
want1 := map[string]bool{"tag1": true}
const file2 = "// +build cgo\n\n" +
"// This package implements parsing of tags like\n" +
"// +build tag1\n" +
"package build"
want2 := map[string]bool{"cgo": true}
const file3 = "// Copyright The Go Authors.\n\n" +
"package build\n\n" +
"// shouldBuild checks tags given by lines of the form\n" +
"// +build tag\n" +
"func shouldBuild(content []byte)\n"
want3 := map[string]bool{}
ctx := &Context{BuildTags: []string{"tag1"}}
m := map[string]bool{}
if !ctx.shouldBuild([]byte(file1), m) {
t.Errorf("shouldBuild(file1) = false, want true")
}
if !reflect.DeepEqual(m, want1) {
t.Errorf("shoudBuild(file1) tags = %v, want %v", m, want1)
}
m = map[string]bool{}
if ctx.shouldBuild([]byte(file2), m) {
t.Errorf("shouldBuild(file2) = true, want fakse")
}
if !reflect.DeepEqual(m, want2) {
t.Errorf("shoudBuild(file2) tags = %v, want %v", m, want2)
}
m = map[string]bool{}
ctx = &Context{BuildTags: nil}
if !ctx.shouldBuild([]byte(file3), m) {
t.Errorf("shouldBuild(file3) = false, want true")
}
if !reflect.DeepEqual(m, want3) {
t.Errorf("shoudBuild(file3) tags = %v, want %v", m, want3)
}
}
type readNopCloser struct {
io.Reader
}
func (r readNopCloser) Close() error {
return nil
}
var (
ctxtP9 = Context{GOARCH: "arm", GOOS: "plan9"}
ctxtAndroid = Context{GOARCH: "arm", GOOS: "android"}
)
var matchFileTests = []struct {
ctxt Context
name string
data string
match bool
}{
{ctxtP9, "foo_arm.go", "", true},
{ctxtP9, "foo1_arm.go", "// +build linux\n\npackage main\n", false},
{ctxtP9, "foo_darwin.go", "", false},
{ctxtP9, "foo.go", "", true},
{ctxtP9, "foo1.go", "// +build linux\n\npackage main\n", false},
{ctxtP9, "foo.badsuffix", "", false},
{ctxtAndroid, "foo_linux.go", "", true},
{ctxtAndroid, "foo_android.go", "", true},
{ctxtAndroid, "foo_plan9.go", "", false},
{ctxtAndroid, "android.go", "", true},
{ctxtAndroid, "plan9.go", "", true},
{ctxtAndroid, "arm.s", "", true},
{ctxtAndroid, "amd64.s", "", true},
}
func TestMatchFile(t *testing.T) {
for _, tt := range matchFileTests {
ctxt := tt.ctxt
ctxt.OpenFile = func(path string) (r io.ReadCloser, err error) {
if path != "x+"+tt.name {
t.Fatalf("OpenFile asked for %q, expected %q", path, "x+"+tt.name)
}
return &readNopCloser{strings.NewReader(tt.data)}, nil
}
ctxt.JoinPath = func(elem ...string) string {
return strings.Join(elem, "+")
}
match, err := ctxt.MatchFile("x", tt.name)
if match != tt.match || err != nil {
t.Fatalf("MatchFile(%q) = %v, %v, want %v, nil", tt.name, match, err, tt.match)
}
}
}
func TestImportCmd(t *testing.T) {
p, err := Import("cmd/internal/objfile", "", 0)
if err != nil {
t.Fatal(err)
}
if !strings.HasSuffix(filepath.ToSlash(p.Dir), "src/cmd/internal/objfile") {
t.Fatalf("Import cmd/internal/objfile returned Dir=%q, want %q", filepath.ToSlash(p.Dir), ".../src/cmd/internal/objfile")
}
}
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