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// Copyright 2018 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.
// +build go1.12
package unitchecker_test
// This test depends on features such as
// go vet's support for vetx files (1.11) and
// the (*os.ProcessState).ExitCode method (1.12).
import (
"flag"
"os"
"os/exec"
"runtime"
"strings"
"testing"
"golang.org/x/tools/go/analysis/analysistest"
"golang.org/x/tools/go/analysis/passes/findcall"
"golang.org/x/tools/go/analysis/passes/printf"
"golang.org/x/tools/go/analysis/unitchecker"
)
func TestMain(m *testing.M) {
if os.Getenv("UNITCHECKER_CHILD") == "1" {
// child process
main()
panic("unreachable")
}
// test
flag.Parse()
os.Exit(m.Run())
}
func main() {
unitchecker.Main(
findcall.Analyzer,
printf.Analyzer,
)
}
// This is a very basic integration test of modular
// analysis with facts using unitchecker under "go vet".
// It fork/execs the main function above.
func TestIntegration(t *testing.T) {
if runtime.GOOS != "linux" {
t.Skipf("skipping fork/exec test on this platform")
}
testdata := analysistest.TestData()
const wantA = `# a
testdata/src/a/a.go:4:11: call of MyFunc123(...)
`
const wantB = `# b
testdata/src/b/b.go:6:13: call of MyFunc123(...)
testdata/src/b/b.go:7:11: call of MyFunc123(...)
`
const wantAJSON = `# a
{
"a": {
"findcall": [
{
"posn": "$GOPATH/src/a/a.go:4:11",
"message": "call of MyFunc123(...)"
}
]
}
}
`
for _, test := range []struct {
args string
wantOut string
wantExit int
}{
{args: "a", wantOut: wantA, wantExit: 2},
{args: "b", wantOut: wantB, wantExit: 2},
{args: "a b", wantOut: wantA + wantB, wantExit: 2},
{args: "-json a", wantOut: wantAJSON, wantExit: 0},
{args: "-c=0 a", wantOut: wantA + "4 MyFunc123()\n", wantExit: 2},
} {
cmd := exec.Command("go", "vet", "-vettool="+os.Args[0], "-findcall.name=MyFunc123")
cmd.Args = append(cmd.Args, strings.Fields(test.args)...)
cmd.Env = append(os.Environ(),
"UNITCHECKER_CHILD=1",
"GOPATH="+testdata,
)
out, err := cmd.CombinedOutput()
exitcode := 0
if exitErr, ok := err.(*exec.ExitError); ok {
exitcode = exitErr.ExitCode()
}
if exitcode != test.wantExit {
t.Errorf("%s: got exit code %d, want %d", test.args, exitcode, test.wantExit)
}
got := strings.Replace(string(out), testdata, "$GOPATH", -1)
if got != test.wantOut {
t.Errorf("%s: got <<%s>>, want <<%s>>", test.args, got, test.wantOut)
}
}
}
|
