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// Copyright 2013 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 gccgoimporter
import (
"go/types"
"internal/testenv"
"io/ioutil"
"os"
"os/exec"
"path/filepath"
"runtime"
"testing"
)
type importerTest struct {
pkgpath, name, want, wantval string
wantinits []string
}
func runImporterTest(t *testing.T, imp Importer, initmap map[*types.Package]InitData, test *importerTest) {
pkg, err := imp(make(map[string]*types.Package), test.pkgpath)
if err != nil {
t.Error(err)
return
}
if test.name != "" {
obj := pkg.Scope().Lookup(test.name)
if obj == nil {
t.Errorf("%s: object not found", test.name)
return
}
got := types.ObjectString(obj, types.RelativeTo(pkg))
if got != test.want {
t.Errorf("%s: got %q; want %q", test.name, got, test.want)
}
if test.wantval != "" {
gotval := obj.(*types.Const).Val().String()
if gotval != test.wantval {
t.Errorf("%s: got val %q; want val %q", test.name, gotval, test.wantval)
}
}
}
if len(test.wantinits) > 0 {
initdata := initmap[pkg]
found := false
// Check that the package's own init function has the package's priority
for _, pkginit := range initdata.Inits {
if pkginit.InitFunc == test.wantinits[0] {
if initdata.Priority != pkginit.Priority {
t.Errorf("%s: got self priority %d; want %d", test.pkgpath, pkginit.Priority, initdata.Priority)
}
found = true
break
}
}
if !found {
t.Errorf("%s: could not find expected function %q", test.pkgpath, test.wantinits[0])
}
// Each init function in the list other than the first one is a
// dependency of the function immediately before it. Check that
// the init functions appear in descending priority order.
priority := initdata.Priority
for _, wantdepinit := range test.wantinits[1:] {
found = false
for _, pkginit := range initdata.Inits {
if pkginit.InitFunc == wantdepinit {
if priority <= pkginit.Priority {
t.Errorf("%s: got dep priority %d; want less than %d", test.pkgpath, pkginit.Priority, priority)
}
found = true
priority = pkginit.Priority
break
}
}
if !found {
t.Errorf("%s: could not find expected function %q", test.pkgpath, wantdepinit)
}
}
}
}
var importerTests = [...]importerTest{
{pkgpath: "pointer", name: "Int8Ptr", want: "type Int8Ptr *int8"},
{pkgpath: "complexnums", name: "NN", want: "const NN untyped complex", wantval: "(-1 + -1i)"},
{pkgpath: "complexnums", name: "NP", want: "const NP untyped complex", wantval: "(-1 + 1i)"},
{pkgpath: "complexnums", name: "PN", want: "const PN untyped complex", wantval: "(1 + -1i)"},
{pkgpath: "complexnums", name: "PP", want: "const PP untyped complex", wantval: "(1 + 1i)"},
{pkgpath: "conversions", name: "Bits", want: "const Bits Units", wantval: `"bits"`},
{pkgpath: "time", name: "Duration", want: "type Duration int64"},
{pkgpath: "time", name: "Nanosecond", want: "const Nanosecond Duration", wantval: "1"},
{pkgpath: "unicode", name: "IsUpper", want: "func IsUpper(r rune) bool"},
{pkgpath: "unicode", name: "MaxRune", want: "const MaxRune untyped rune", wantval: "1114111"},
{pkgpath: "imports", wantinits: []string{"imports..import", "fmt..import", "math..import"}},
{pkgpath: "alias", name: "IntAlias2", want: "type IntAlias2 = Int"},
}
func TestGoxImporter(t *testing.T) {
testenv.MustHaveGoBuild(t)
initmap := make(map[*types.Package]InitData)
imp := GetImporter([]string{"testdata"}, initmap)
for _, test := range importerTests {
runImporterTest(t, imp, initmap, &test)
}
}
func TestObjImporter(t *testing.T) {
testenv.MustHaveGoBuild(t)
// This test relies on gccgo being around, which it most likely will be if we
// were compiled with gccgo.
if runtime.Compiler != "gccgo" {
t.Skip("This test needs gccgo")
return
}
tmpdir, err := ioutil.TempDir("", "")
if err != nil {
t.Fatal(err)
}
initmap := make(map[*types.Package]InitData)
imp := GetImporter([]string{tmpdir}, initmap)
artmpdir, err := ioutil.TempDir("", "")
if err != nil {
t.Fatal(err)
}
arinitmap := make(map[*types.Package]InitData)
arimp := GetImporter([]string{artmpdir}, arinitmap)
for _, test := range importerTests {
gofile := filepath.Join("testdata", test.pkgpath+".go")
ofile := filepath.Join(tmpdir, test.pkgpath+".o")
afile := filepath.Join(artmpdir, "lib"+test.pkgpath+".a")
cmd := exec.Command("gccgo", "-fgo-pkgpath="+test.pkgpath, "-c", "-o", ofile, gofile)
out, err := cmd.CombinedOutput()
if err != nil {
t.Logf("%s", out)
t.Fatalf("gccgo %s failed: %s", gofile, err)
}
runImporterTest(t, imp, initmap, &test)
cmd = exec.Command("ar", "cr", afile, ofile)
out, err = cmd.CombinedOutput()
if err != nil {
t.Logf("%s", out)
t.Fatalf("ar cr %s %s failed: %s", afile, ofile, err)
}
runImporterTest(t, arimp, arinitmap, &test)
if err = os.Remove(ofile); err != nil {
t.Fatal(err)
}
if err = os.Remove(afile); err != nil {
t.Fatal(err)
}
}
if err = os.Remove(tmpdir); err != nil {
t.Fatal(err)
}
}
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