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// Copyright 2020 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 pkgpath
import (
"os"
"testing"
)
const testEnvName = "GO_PKGPATH_TEST_COMPILER"
// This init function supports TestToSymbolFunc. For simplicity,
// we use the test binary itself as a sample gccgo driver.
// We set an environment variable to specify how it should behave.
func init() {
switch os.Getenv(testEnvName) {
case "":
return
case "v1":
os.Stdout.WriteString(`.string "go.l__ufer.Run"`)
os.Exit(0)
case "v2":
os.Stdout.WriteString(`.string "go.l..u00e4ufer.Run"`)
os.Exit(0)
case "error":
os.Stdout.WriteString(`unknown string`)
os.Exit(0)
}
}
func TestToSymbolFunc(t *testing.T) {
const input = "pä世🜃"
tests := []struct {
env string
fail bool
mangled string
}{
{
env: "v1",
mangled: "p___",
},
{
env: "v2",
mangled: "p..u00e4..u4e16..U0001f703",
},
{
env: "error",
fail: true,
},
}
cmd := os.Args[0]
tmpdir := t.TempDir()
defer os.Unsetenv(testEnvName)
for _, test := range tests {
t.Run(test.env, func(t *testing.T) {
os.Setenv(testEnvName, test.env)
fn, err := ToSymbolFunc(cmd, tmpdir)
if err != nil {
if !test.fail {
t.Errorf("ToSymbolFunc(%q, %q): unexpected error %v", cmd, tmpdir, err)
}
} else if test.fail {
t.Errorf("ToSymbolFunc(%q, %q) succeeded but expected to fail", cmd, tmpdir)
} else if got, want := fn(input), test.mangled; got != want {
t.Errorf("ToSymbolFunc(%q, %q)(%q) = %q, want %q", cmd, tmpdir, input, got, want)
}
})
}
}
var symbolTests = []struct {
input, v1, v2 string
}{
{
"",
"",
"",
},
{
"bytes",
"bytes",
"bytes",
},
{
"net/http",
"net_http",
"net..z2fhttp",
},
{
"golang.org/x/net/http",
"golang_org_x_net_http",
"golang.x2eorg..z2fx..z2fnet..z2fhttp",
},
{
"pä世.🜃",
"p____",
"p..u00e4..u4e16.x2e..U0001f703",
},
}
func TestV1(t *testing.T) {
for _, test := range symbolTests {
if got, want := toSymbolV1(test.input), test.v1; got != want {
t.Errorf("toSymbolV1(%q) = %q, want %q", test.input, got, want)
}
}
}
func TestV2(t *testing.T) {
for _, test := range symbolTests {
if got, want := toSymbolV2(test.input), test.v2; got != want {
t.Errorf("toSymbolV2(%q) = %q, want %q", test.input, got, want)
}
}
}
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