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Merge pull request #90 from quarnster/test
cmd/llgo-build: Add -test flag creating a test binary. For #48.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,139 @@ | ||
| package main | ||
|
|
||
| import ( | ||
| "bytes" | ||
| "fmt" | ||
| "go/build" | ||
| "go/format" | ||
| "go/parser" | ||
| "go/token" | ||
| "io/ioutil" | ||
| "os" | ||
| "os/exec" | ||
| "path/filepath" | ||
| "strings" | ||
| ) | ||
|
|
||
| func buildPackageTests(pkgpath string) error { | ||
| if strings.HasSuffix(pkgpath, ".go") { | ||
| return fmt.Errorf("-test needs a package path, not a .go file") | ||
| } | ||
| return buildPackages([]string{pkgpath}) | ||
| } | ||
|
|
||
| func writeTestMain(pkg *build.Package, linkfile string) (err error) { | ||
| w := bytes.NewBuffer(nil) | ||
| tests := bytes.NewBuffer(nil) | ||
| fset := token.NewFileSet() | ||
|
|
||
| w.WriteString(`package main | ||
| import ( | ||
| "testing" | ||
| `) | ||
|
|
||
| tests.WriteString("var tests = []testing.InternalTest{\n") | ||
|
|
||
| imports := make(map[string]bool) | ||
|
|
||
| addtests := func(pkgname string, gofiles []string) error { | ||
| for _, tf := range gofiles { | ||
| f, err := parser.ParseFile(fset, tf, nil, 0) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| for k := range f.Scope.Objects { | ||
| if strings.HasPrefix(k, "Test") { | ||
| if !imports[pkgname] { | ||
| w.WriteString(fmt.Sprintf("\t\"%s\"\n", pkgname)) | ||
| imports[pkgname] = true | ||
| } | ||
| tests.WriteString(fmt.Sprintf("\t{\"%s\", %s.%s},\n", k, pkgname, k)) | ||
| } | ||
| } | ||
| } | ||
| return nil | ||
| } | ||
| if err = addtests(pkg.Name, pkg.TestGoFiles); err != nil { | ||
| return err | ||
| } | ||
| if err = addtests(pkg.Name+"_test", pkg.XTestGoFiles); err != nil { | ||
| return err | ||
| } | ||
| w.WriteString(")\n") | ||
| tests.WriteString("}\n") | ||
| w.Write(tests.Bytes()) | ||
| w.WriteString(` | ||
| var benchmarks = []testing.InternalBenchmark{} | ||
| var examples = []testing.InternalExample{} | ||
| func matchString(pat, str string) (bool, error) { | ||
| return true, nil | ||
| } | ||
| func main() { | ||
| testing.Main(matchString, tests, benchmarks, examples) | ||
| } | ||
| `) | ||
| data, err := format.Source(w.Bytes()) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| gofile := filepath.Join(filepath.Dir(linkfile), "main.go") | ||
| if err = ioutil.WriteFile(gofile, data, 0644); err != nil { | ||
| return err | ||
| } | ||
|
|
||
| test_bc := "" | ||
| if len(pkg.XTestGoFiles) > 0 { | ||
| args2 := []string{"-c", "-triple", triple} | ||
| file := filepath.Base(linkfile) | ||
| file = file[:len(file)-3] | ||
| test_bc = filepath.Join(workdir, file+"_test.bc") | ||
| args2 = append(args2, "-o", test_bc) | ||
| args2 = append(args2, pkg.XTestGoFiles...) | ||
| cmd := exec.Command("llgo", args2...) | ||
| cmd.Stdout = os.Stdout | ||
| cmd.Stderr = os.Stderr | ||
| err := runCmd(cmd) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| } | ||
|
|
||
| mainbc := gofile[:len(gofile)-3] + ".bc" | ||
| args := []string{"-c", "-triple", triple, "-o", mainbc, gofile} | ||
| cmd := exec.Command("llgo", args...) | ||
| cmd.Stdout = os.Stdout | ||
| cmd.Stderr = os.Stderr | ||
| err = runCmd(cmd) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| llvmlink := filepath.Join(llvmbindir, "llvm-link") | ||
| args = []string{"-o", linkfile, linkfile, mainbc} | ||
| if test_bc != "" { | ||
| args = append(args, test_bc) | ||
| } | ||
|
|
||
| cmd = exec.Command(llvmlink, args...) | ||
| cmd.Stdout = os.Stdout | ||
| cmd.Stderr = os.Stderr | ||
| if err = runCmd(cmd); err != nil { | ||
| return err | ||
| } | ||
|
|
||
| return nil | ||
| } | ||
|
|
||
| func linktest(pkg *build.Package, linkfile string) error { | ||
| if err := writeTestMain(pkg, linkfile); err != nil { | ||
| return err | ||
| } | ||
| if err := linkdeps(pkg, linkfile); err != nil { | ||
| return err | ||
| } | ||
| return nil | ||
| } |