github.com/insionng/yougam@v0.0.0-20170714101924-2bc18d833463/libraries/x/tools/go/gcimporter15/gcimporter17_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  // +build go1.7
     6  
     7  package gcimporter
     8  
     9  import (
    10  	"fmt"
    11  	"os"
    12  	"os/exec"
    13  	"path/filepath"
    14  	"runtime"
    15  	"testing"
    16  )
    17  
    18  // TODO(gri) Remove this function once we switched to new export format by default.
    19  func compileNewExport(t *testing.T, dirname, filename string) string {
    20  	/* testenv. */ MustHaveGoBuild(t)
    21  	cmd := exec.Command("go", "tool", "compile", "-newexport", filename)
    22  	cmd.Dir = dirname
    23  	out, err := cmd.CombinedOutput()
    24  	if err != nil {
    25  		t.Logf("%s", out)
    26  		t.Fatalf("go tool compile %s failed: %s", filename, err)
    27  	}
    28  	// filename should end with ".go"
    29  	return filepath.Join(dirname, filename[:len(filename)-2]+"o")
    30  }
    31  
    32  // TODO(gri) Remove this function once we switched to new export format by default
    33  //           (and update the comment and want list in TestImportTestdata).
    34  func TestImportTestdataNewExport(t *testing.T) {
    35  	// This package only handles gc export data.
    36  	if runtime.Compiler != "gc" {
    37  		t.Skipf("gc-built packages not available (compiler = %s)", runtime.Compiler)
    38  		return
    39  	}
    40  
    41  	if outFn := compileNewExport(t, "testdata", "exports.go"); outFn != "" {
    42  		defer os.Remove(outFn)
    43  	}
    44  
    45  	if pkg := testPath(t, "./testdata/exports", "."); pkg != nil {
    46  		// The package's Imports list must include all packages
    47  		// explicitly imported by exports.go, plus all packages
    48  		// referenced indirectly via exported objects in exports.go.
    49  		want := `[package ast ("go/ast") package token ("go/token")]`
    50  		got := fmt.Sprint(pkg.Imports())
    51  		if got != want {
    52  			t.Errorf(`Package("exports").Imports() = %s, want %s`, got, want)
    53  		}
    54  	}
    55  }