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|
package main
import (
"go/build"
"io/ioutil"
"os"
"path/filepath"
"reflect"
"testing"
)
var testFileCGO = `
// This file is not intended to actually build.
package cgo
/*
#include <stdio.h>
#include <stdlib.h>
void myprint(char* s) {
printf("%s", s);
}
*/
import "C"
func main() {
C.myprint("hello")
}
`
var testFileFILENAMETAG = `
// This file is not intended to actually compile.
package filenametag_darwin
`
var testFileIGNORE = `
// This file is not intended to actually build.
//+build ignore
package ignore
`
var testFileTAGS = `
// This file is not intended to actually build.
//+build arm,darwin linux,mips
package tags
`
func TestTags(t *testing.T) {
tempdir, err := ioutil.TempDir("", "goruletest")
if err != nil {
t.Fatalf("Error creating temporary directory: %v", err)
}
defer os.RemoveAll(tempdir)
for k, v := range map[string]string{
"cgo.go": testFileCGO,
"darwin.go": testFileFILENAMETAG,
"ignore.go": testFileIGNORE,
"tags.go": testFileTAGS,
} {
p := filepath.Join(tempdir, k)
if err := ioutil.WriteFile(p, []byte(v), 0644); err != nil {
t.Fatalf("WriteFile(%s): %v", p, err)
}
}
testContext := build.Default
wd, err := os.Getwd()
if err != nil {
t.Fatalf("Getwd: %v", err)
}
err = os.Chdir(tempdir)
if err != nil {
t.Fatalf("Chdir(%s): %v", tempdir, err)
}
defer os.Chdir(wd)
// Test tags.go (tags in +build comments)
testContext.BuildTags = []string{"arm", "darwin"}
inputs := []string{"tags.go"}
outputs, err := filterFilenames(testContext, inputs)
if err != nil {
t.Errorf("filterFilenames(%s): %v", inputs, err)
}
if !reflect.DeepEqual(inputs, outputs) {
t.Error("Output missing an expected file: tags.go")
}
testContext.BuildTags = []string{"arm, linux"}
outputs, err = filterFilenames(testContext, inputs)
if err != nil {
t.Errorf("filterFilenames(%s): %v", inputs, err)
}
if !reflect.DeepEqual([]string{}, outputs) {
t.Error("Output contains an unexpected file: tags.go")
}
// Test ignore.go (should not build a file with +ignore comment)
testContext.BuildTags = []string{}
inputs = []string{"ignore.go"}
outputs, err = filterFilenames(testContext, inputs)
if err != nil {
t.Errorf("filterFilenames(%s): %v", inputs, err)
}
if !reflect.DeepEqual([]string{}, outputs) {
t.Error("Output contains an unexpected file: ignore.go")
}
}
|
