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// Copyright 2019 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 stdlib
import (
"io/ioutil"
"reflect"
"strings"
"testing"
"golang.org/x/mod/semver"
)
func TestTagForVersion(t *testing.T) {
for _, test := range []struct {
name string
version string
want string
wantErr bool
}{
{
name: "std version v1.0.0",
version: "v1.0.0",
want: "go1",
},
{
name: "std version v1.12.5",
version: "v1.12.5",
want: "go1.12.5",
},
{
name: "std version v1.13, incomplete canonical version",
version: "v1.13",
want: "go1.13",
},
{
name: "std version v1.13.0-beta.1",
version: "v1.13.0-beta.1",
want: "go1.13beta1",
},
{
name: "std version v1.9.0-rc.2",
version: "v1.9.0-rc.2",
want: "go1.9rc2",
},
{
name: "std with digitless prerelease",
version: "v1.13.0-prerelease",
want: "go1.13prerelease",
},
{
name: "version v1.13.0",
version: "v1.13.0",
want: "go1.13",
},
{
name: "bad std semver",
version: "v1.x",
wantErr: true,
},
{
name: "more bad std semver",
version: "v1.0-",
wantErr: true,
},
{
name: "bad prerelease",
version: "v1.13.0-beta1",
wantErr: true,
},
{
name: "another bad prerelease",
version: "v1.13.0-whatevs99",
wantErr: true,
},
} {
t.Run(test.name, func(t *testing.T) {
got, err := TagForVersion(test.version)
if (err != nil) != test.wantErr {
t.Errorf("TagForVersion(%q) = %q, %v, wantErr %v", test.version, got, err, test.wantErr)
return
}
if got != test.want {
t.Errorf("TagForVersion(%q) = %q, %v, wanted %q, %v", test.version, got, err, test.want, nil)
}
})
}
}
func TestMajorVersionForVersion(t *testing.T) {
for _, test := range []struct {
in string
want string // empty => error
}{
{"", ""},
{"garbage", ""},
{"v1.0.0", "go1"},
{"v1.13.3", "go1"},
{"v1.9.0-rc.2", "go1"},
{"v2.1.3", "go2"},
} {
got, err := MajorVersionForVersion(test.in)
if (err != nil) != (test.want == "") {
t.Errorf("%q: err: got %v, wanted error: %t", test.in, err, test.want == "")
}
if err == nil && got != test.want {
t.Errorf("%q: got %q, want %q", test.in, got, test.want)
}
}
}
func TestZip(t *testing.T) {
UseTestData = true
defer func() { UseTestData = false }()
for _, resolvedVersion := range []string{"v1.14.6", "v1.12.5", "v1.3.2"} {
t.Run(resolvedVersion, func(t *testing.T) {
zr, gotTime, err := Zip(resolvedVersion)
if err != nil {
t.Fatal(err)
}
if !gotTime.Equal(TestCommitTime) {
t.Errorf("commit time: got %s, want %s", gotTime, TestCommitTime)
}
wantFiles := map[string]bool{
"LICENSE": true,
"errors/errors.go": true,
"errors/errors_test.go": true,
}
if semver.Compare(resolvedVersion, "v1.4.0") > 0 {
wantFiles["README.md"] = true
} else {
wantFiles["README"] = true
}
if semver.Compare(resolvedVersion, "v1.13.0") > 0 {
wantFiles["cmd/README.vendor"] = true
}
wantPrefix := "std@" + resolvedVersion + "/"
readmeVendorFile := wantPrefix + "README.vendor"
for _, f := range zr.File {
if f.Name == readmeVendorFile {
t.Fatalf("got %q; want file to be removed", readmeVendorFile)
}
if !strings.HasPrefix(f.Name, wantPrefix) {
t.Errorf("filename %q missing prefix %q", f.Name, wantPrefix)
continue
}
delete(wantFiles, f.Name[len(wantPrefix):])
}
if len(wantFiles) > 0 {
t.Errorf("zip missing files: %v", reflect.ValueOf(wantFiles).MapKeys())
}
for _, f := range zr.File {
if f.Name == wantPrefix+"go.mod" {
r, err := f.Open()
if err != nil {
t.Fatal(err)
}
defer r.Close()
b, err := ioutil.ReadAll(r)
if err != nil {
t.Fatal(err)
}
if got, want := string(b), "module std\n"; got != want {
t.Errorf("go.mod: got %q, want %q", got, want)
}
break
}
}
})
}
}
func TestZipInfo(t *testing.T) {
UseTestData = true
defer func() { UseTestData = false }()
gotVersion, gotSize, err := ZipInfo("latest")
if err != nil {
t.Fatal(err)
}
if want := "v1.14.6"; gotVersion != want {
t.Errorf("version: got %q, want %q", gotVersion, want)
}
if want := int64(estimatedZipSize); gotSize != want {
t.Errorf("size: got %d, want %d", gotSize, want)
}
}
func TestVersions(t *testing.T) {
UseTestData = true
defer func() { UseTestData = false }()
got, err := Versions()
if err != nil {
t.Fatal(err)
}
gotmap := map[string]bool{}
for _, g := range got {
gotmap[g] = true
}
wants := []string{
"v1.4.2",
"v1.9.0-rc.1",
"v1.11.0",
"v1.13.0-beta.1",
}
for _, w := range wants {
if !gotmap[w] {
t.Errorf("missing %s", w)
}
}
}
func TestVersionForTag(t *testing.T) {
for _, test := range []struct {
in, want string
}{
{"", ""},
{"go1", "v1.0.0"},
{"go1.9beta2", "v1.9.0-beta.2"},
{"go1.12", "v1.12.0"},
{"go1.9.7", "v1.9.7"},
{"go2.0", "v2.0.0"},
{"go1.9rc2", "v1.9.0-rc.2"},
{"go1.1beta", ""},
{"go1.0", ""},
{"weekly.2012-02-14", ""},
{"latest", "latest"},
} {
got := VersionForTag(test.in)
if got != test.want {
t.Errorf("VersionForTag(%q) = %q, want %q", test.in, got, test.want)
}
}
}
func TestContains(t *testing.T) {
for _, test := range []struct {
in string
want bool
}{
{"fmt", true},
{"encoding/json", true},
{"something/with.dots", true},
{"example.com", false},
{"example.com/fmt", false},
} {
got := Contains(test.in)
if got != test.want {
t.Errorf("Contains(%q) = %t, want %t", test.in, got, test.want)
}
}
}