| // Copyright 2023 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. |
| |
| //go:build go1.21 |
| |
| // Check that GoVersion propagates through to checkers. |
| // Depends on Go 1.21 go/types. |
| |
| package versiontest |
| |
| import ( |
| "os" |
| "os/exec" |
| "path/filepath" |
| "strings" |
| "testing" |
| |
| "golang.org/x/tools/go/analysis" |
| "golang.org/x/tools/go/analysis/analysistest" |
| "golang.org/x/tools/go/analysis/multichecker" |
| "golang.org/x/tools/go/analysis/singlechecker" |
| ) |
| |
| var analyzer = &analysis.Analyzer{ |
| Name: "versiontest", |
| Doc: "off", |
| Run: func(pass *analysis.Pass) (interface{}, error) { |
| pass.Reportf(pass.Files[0].Package, "goversion=%s", pass.Pkg.GoVersion()) |
| return nil, nil |
| }, |
| } |
| |
| func init() { |
| if os.Getenv("VERSIONTEST_MULTICHECKER") == "1" { |
| multichecker.Main(analyzer) |
| os.Exit(0) |
| } |
| if os.Getenv("VERSIONTEST_SINGLECHECKER") == "1" { |
| singlechecker.Main(analyzer) |
| os.Exit(0) |
| } |
| } |
| |
| func testDir(t *testing.T) (dir string) { |
| dir = t.TempDir() |
| if err := os.WriteFile(filepath.Join(dir, "go.mod"), []byte("go 1.20\nmodule m\n"), 0666); err != nil { |
| t.Fatal(err) |
| } |
| if err := os.WriteFile(filepath.Join(dir, "x.go"), []byte("package main // want \"goversion=go1.20\"\n"), 0666); err != nil { |
| t.Fatal(err) |
| } |
| return dir |
| } |
| |
| // There are many ways to run analyzers. Test all the ones here in x/tools. |
| |
| func TestAnalysistest(t *testing.T) { |
| analysistest.Run(t, testDir(t), analyzer) |
| } |
| |
| func TestMultichecker(t *testing.T) { |
| exe, err := os.Executable() |
| if err != nil { |
| t.Fatal(err) |
| } |
| cmd := exec.Command(exe, ".") |
| cmd.Dir = testDir(t) |
| cmd.Env = append(os.Environ(), "VERSIONTEST_MULTICHECKER=1") |
| out, err := cmd.CombinedOutput() |
| if err == nil || !strings.Contains(string(out), "x.go:1:1: goversion=go1.20\n") { |
| t.Fatalf("multichecker: %v\n%s", err, out) |
| } |
| } |
| |
| func TestSinglechecker(t *testing.T) { |
| exe, err := os.Executable() |
| if err != nil { |
| t.Fatal(err) |
| } |
| cmd := exec.Command(exe, ".") |
| cmd.Dir = testDir(t) |
| cmd.Env = append(os.Environ(), "VERSIONTEST_SINGLECHECKER=1") |
| out, err := cmd.CombinedOutput() |
| if err == nil || !strings.Contains(string(out), "x.go:1:1: goversion=go1.20\n") { |
| t.Fatalf("multichecker: %v\n%s", err, out) |
| } |
| } |
| |
| func TestVettool(t *testing.T) { |
| exe, err := os.Executable() |
| if err != nil { |
| t.Fatal(err) |
| } |
| cmd := exec.Command("go", "vet", "-vettool="+exe, ".") |
| cmd.Dir = testDir(t) |
| cmd.Env = append(os.Environ(), "VERSIONTEST_MULTICHECKER=1") |
| out, err := cmd.CombinedOutput() |
| if err == nil || !strings.Contains(string(out), "x.go:1:1: goversion=go1.20\n") { |
| t.Fatalf("vettool: %v\n%s", err, out) |
| } |
| } |