github.com/varialus/godfly@v0.0.0-20130904042352-1934f9f095ab/src/pkg/go/build/build_test.go (about)

     1  // Copyright 2011 The Go Authors.  All rights reserved.
     2  // Use of this source code is governed by a BSD-style
     3  // license that can be found in the LICENSE file.
     4  
     5  package build
     6  
     7  import (
     8  	"os"
     9  	"path/filepath"
    10  	"reflect"
    11  	"runtime"
    12  	"testing"
    13  )
    14  
    15  func TestMatch(t *testing.T) {
    16  	ctxt := Default
    17  	what := "default"
    18  	match := func(tag string, want map[string]bool) {
    19  		m := make(map[string]bool)
    20  		if !ctxt.match(tag, m) {
    21  			t.Errorf("%s context should match %s, does not", what, tag)
    22  		}
    23  		if !reflect.DeepEqual(m, want) {
    24  			t.Errorf("%s tags = %v, want %v", tag, m, want)
    25  		}
    26  	}
    27  	nomatch := func(tag string, want map[string]bool) {
    28  		m := make(map[string]bool)
    29  		if ctxt.match(tag, m) {
    30  			t.Errorf("%s context should NOT match %s, does", what, tag)
    31  		}
    32  		if !reflect.DeepEqual(m, want) {
    33  			t.Errorf("%s tags = %v, want %v", tag, m, want)
    34  		}
    35  	}
    36  
    37  	match(runtime.GOOS+","+runtime.GOARCH, map[string]bool{runtime.GOOS: true, runtime.GOARCH: true})
    38  	match(runtime.GOOS+","+runtime.GOARCH+",!foo", map[string]bool{runtime.GOOS: true, runtime.GOARCH: true, "foo": true})
    39  	nomatch(runtime.GOOS+","+runtime.GOARCH+",foo", map[string]bool{runtime.GOOS: true, runtime.GOARCH: true, "foo": true})
    40  
    41  	what = "modified"
    42  	ctxt.BuildTags = []string{"foo"}
    43  	match(runtime.GOOS+","+runtime.GOARCH, map[string]bool{runtime.GOOS: true, runtime.GOARCH: true})
    44  	match(runtime.GOOS+","+runtime.GOARCH+",foo", map[string]bool{runtime.GOOS: true, runtime.GOARCH: true, "foo": true})
    45  	nomatch(runtime.GOOS+","+runtime.GOARCH+",!foo", map[string]bool{runtime.GOOS: true, runtime.GOARCH: true, "foo": true})
    46  	match(runtime.GOOS+","+runtime.GOARCH+",!bar", map[string]bool{runtime.GOOS: true, runtime.GOARCH: true, "bar": true})
    47  	nomatch(runtime.GOOS+","+runtime.GOARCH+",bar", map[string]bool{runtime.GOOS: true, runtime.GOARCH: true, "bar": true})
    48  	nomatch("!", map[string]bool{})
    49  }
    50  
    51  func TestDotSlashImport(t *testing.T) {
    52  	p, err := ImportDir("testdata/other", 0)
    53  	if err != nil {
    54  		t.Fatal(err)
    55  	}
    56  	if len(p.Imports) != 1 || p.Imports[0] != "./file" {
    57  		t.Fatalf("testdata/other: Imports=%v, want [./file]", p.Imports)
    58  	}
    59  
    60  	p1, err := Import("./file", "testdata/other", 0)
    61  	if err != nil {
    62  		t.Fatal(err)
    63  	}
    64  	if p1.Name != "file" {
    65  		t.Fatalf("./file: Name=%q, want %q", p1.Name, "file")
    66  	}
    67  	dir := filepath.Clean("testdata/other/file") // Clean to use \ on Windows
    68  	if p1.Dir != dir {
    69  		t.Fatalf("./file: Dir=%q, want %q", p1.Name, dir)
    70  	}
    71  }
    72  
    73  func TestEmptyImport(t *testing.T) {
    74  	p, err := Import("", Default.GOROOT, FindOnly)
    75  	if err == nil {
    76  		t.Fatal(`Import("") returned nil error.`)
    77  	}
    78  	if p == nil {
    79  		t.Fatal(`Import("") returned nil package.`)
    80  	}
    81  	if p.ImportPath != "" {
    82  		t.Fatalf("ImportPath=%q, want %q.", p.ImportPath, "")
    83  	}
    84  }
    85  
    86  func TestLocalDirectory(t *testing.T) {
    87  	cwd, err := os.Getwd()
    88  	if err != nil {
    89  		t.Fatal(err)
    90  	}
    91  
    92  	p, err := ImportDir(cwd, 0)
    93  	if err != nil {
    94  		t.Fatal(err)
    95  	}
    96  	if p.ImportPath != "go/build" {
    97  		t.Fatalf("ImportPath=%q, want %q", p.ImportPath, "go/build")
    98  	}
    99  }
   100  
   101  func TestShouldBuild(t *testing.T) {
   102  	const file1 = "// +build tag1\n\n" +
   103  		"package main\n"
   104  	want1 := map[string]bool{"tag1": true}
   105  
   106  	const file2 = "// +build cgo\n\n" +
   107  		"// This package implements parsing of tags like\n" +
   108  		"// +build tag1\n" +
   109  		"package build"
   110  	want2 := map[string]bool{"cgo": true}
   111  
   112  	const file3 = "// Copyright The Go Authors.\n\n" +
   113  		"package build\n\n" +
   114  		"// shouldBuild checks tags given by lines of the form\n" +
   115  		"// +build tag\n" +
   116  		"func shouldBuild(content []byte)\n"
   117  	want3 := map[string]bool{}
   118  
   119  	ctx := &Context{BuildTags: []string{"tag1"}}
   120  	m := map[string]bool{}
   121  	if !ctx.shouldBuild([]byte(file1), m) {
   122  		t.Errorf("shouldBuild(file1) = false, want true")
   123  	}
   124  	if !reflect.DeepEqual(m, want1) {
   125  		t.Errorf("shoudBuild(file1) tags = %v, want %v", m, want1)
   126  	}
   127  
   128  	m = map[string]bool{}
   129  	if ctx.shouldBuild([]byte(file2), m) {
   130  		t.Errorf("shouldBuild(file2) = true, want fakse")
   131  	}
   132  	if !reflect.DeepEqual(m, want2) {
   133  		t.Errorf("shoudBuild(file2) tags = %v, want %v", m, want2)
   134  	}
   135  
   136  	m = map[string]bool{}
   137  	ctx = &Context{BuildTags: nil}
   138  	if !ctx.shouldBuild([]byte(file3), m) {
   139  		t.Errorf("shouldBuild(file3) = false, want true")
   140  	}
   141  	if !reflect.DeepEqual(m, want3) {
   142  		t.Errorf("shoudBuild(file3) tags = %v, want %v", m, want3)
   143  	}
   144  }