platform_build_blueprint/gotestmain/gotestmain.go
Tim Kilbourn a664b0a7d6 Fix package names for executables.
Go 1.6 fixed a bug where compiling with the -pack flag allowed non-main
packages to link.
https://github.com/golang/go/issues/13468

This change uses package main for choosestage and gotestmain.
2016-03-23 20:57:43 -07:00

106 lines
2 KiB
Go

// Copyright 2015 Google Inc. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package main
import (
"bytes"
"flag"
"fmt"
"go/ast"
"go/parser"
"go/token"
"io/ioutil"
"os"
"strings"
"text/template"
)
var (
output = flag.String("o", "", "output filename")
pkg = flag.String("pkg", "", "test package")
exitCode = 0
)
type data struct {
Package string
Tests []string
}
func findTests(srcs []string) (tests []string) {
for _, src := range srcs {
f, err := parser.ParseFile(token.NewFileSet(), src, nil, 0)
if err != nil {
panic(err)
}
for _, obj := range f.Scope.Objects {
if obj.Kind != ast.Fun || !strings.HasPrefix(obj.Name, "Test") {
continue
}
tests = append(tests, obj.Name)
}
}
return
}
func main() {
flag.Parse()
if flag.NArg() == 0 {
fmt.Fprintln(os.Stderr, "error: must pass at least one input")
exitCode = 1
return
}
buf := &bytes.Buffer{}
d := data{
Package: *pkg,
Tests: findTests(flag.Args()),
}
err := testMainTmpl.Execute(buf, d)
if err != nil {
panic(err)
}
err = ioutil.WriteFile(*output, buf.Bytes(), 0666)
if err != nil {
panic(err)
}
}
var testMainTmpl = template.Must(template.New("testMain").Parse(`
package main
import (
"testing"
pkg "{{.Package}}"
)
var t = []testing.InternalTest{
{{range .Tests}}
{"{{.}}", pkg.{{.}}},
{{end}}
}
func matchString(pat, str string) (bool, error) {
return true, nil
}
func main() {
testing.Main(matchString, t, nil, nil)
}
`))