141 lines
2.8 KiB
Go
141 lines
2.8 KiB
Go
// Copyright 2020 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package pkgpath
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import (
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"os"
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"testing"
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)
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const testEnvName = "GO_PKGPATH_TEST_COMPILER"
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// This init function supports TestToSymbolFunc. For simplicity,
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// we use the test binary itself as a sample gccgo driver.
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// We set an environment variable to specify how it should behave.
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func init() {
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switch os.Getenv(testEnvName) {
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case "":
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return
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case "v1":
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os.Stdout.WriteString(`.string "go.l__ufer.Run"`)
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os.Exit(0)
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case "v2":
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os.Stdout.WriteString(`.string "go.l..u00e4ufer.Run"`)
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os.Exit(0)
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case "v3":
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os.Stdout.WriteString(`.string "go_0l_u00e4ufer.Run"`)
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os.Exit(0)
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case "error":
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os.Stdout.WriteString(`unknown string`)
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os.Exit(0)
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}
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}
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func TestToSymbolFunc(t *testing.T) {
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const input = "pä世🜃"
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tests := []struct {
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env string
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fail bool
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mangled string
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}{
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{
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env: "v1",
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mangled: "p___",
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},
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{
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env: "v2",
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mangled: "p..u00e4..u4e16..U0001f703",
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},
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{
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env: "v3",
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mangled: "p_u00e4_u4e16_U0001f703",
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},
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{
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env: "error",
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fail: true,
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},
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}
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cmd := os.Args[0]
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tmpdir := t.TempDir()
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defer os.Unsetenv(testEnvName)
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for _, test := range tests {
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t.Run(test.env, func(t *testing.T) {
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os.Setenv(testEnvName, test.env)
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fn, err := ToSymbolFunc(cmd, tmpdir)
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if err != nil {
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if !test.fail {
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t.Errorf("ToSymbolFunc(%q, %q): unexpected error %v", cmd, tmpdir, err)
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}
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} else if test.fail {
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t.Errorf("ToSymbolFunc(%q, %q) succeeded but expected to fail", cmd, tmpdir)
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} else if got, want := fn(input), test.mangled; got != want {
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t.Errorf("ToSymbolFunc(%q, %q)(%q) = %q, want %q", cmd, tmpdir, input, got, want)
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}
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})
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}
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}
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var symbolTests = []struct {
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input, v1, v2, v3 string
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}{
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{
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"",
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"",
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"",
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"",
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},
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{
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"bytes",
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"bytes",
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"bytes",
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"bytes",
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},
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{
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"net/http",
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"net_http",
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"net..z2fhttp",
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"net_1http",
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},
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{
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"golang.org/x/net/http",
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"golang_org_x_net_http",
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"golang.x2eorg..z2fx..z2fnet..z2fhttp",
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"golang_0org_1x_1net_1http",
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},
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{
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"pä世.🜃",
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"p____",
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"p..u00e4..u4e16.x2e..U0001f703",
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"p_u00e4_u4e16_0_U0001f703",
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},
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}
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func TestV1(t *testing.T) {
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for _, test := range symbolTests {
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if got, want := toSymbolV1(test.input), test.v1; got != want {
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t.Errorf("toSymbolV1(%q) = %q, want %q", test.input, got, want)
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}
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}
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}
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func TestV2(t *testing.T) {
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for _, test := range symbolTests {
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if got, want := toSymbolV2(test.input), test.v2; got != want {
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t.Errorf("toSymbolV2(%q) = %q, want %q", test.input, got, want)
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}
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}
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}
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func TestV3(t *testing.T) {
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for _, test := range symbolTests {
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if got, want := toSymbolV3(test.input), test.v3; got != want {
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t.Errorf("toSymbolV3(%q) = %q, want %q", test.input, got, want)
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}
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}
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}
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