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-rw-r--r--src/cmd/go/internal/load/test.go752
1 files changed, 752 insertions, 0 deletions
diff --git a/src/cmd/go/internal/load/test.go b/src/cmd/go/internal/load/test.go
new file mode 100644
index 0000000..eb8aef3
--- /dev/null
+++ b/src/cmd/go/internal/load/test.go
@@ -0,0 +1,752 @@
+// 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.
+
+package load
+
+import (
+ "bytes"
+ "context"
+ "errors"
+ "fmt"
+ "go/ast"
+ "go/build"
+ "go/doc"
+ "go/parser"
+ "go/token"
+ "internal/lazytemplate"
+ "path/filepath"
+ "sort"
+ "strings"
+ "unicode"
+ "unicode/utf8"
+
+ "cmd/go/internal/str"
+ "cmd/go/internal/trace"
+)
+
+var TestMainDeps = []string{
+ // Dependencies for testmain.
+ "os",
+ "reflect",
+ "testing",
+ "testing/internal/testdeps",
+}
+
+type TestCover struct {
+ Mode string
+ Local bool
+ Pkgs []*Package
+ Paths []string
+ Vars []coverInfo
+ DeclVars func(*Package, ...string) map[string]*CoverVar
+}
+
+// TestPackagesFor is like TestPackagesAndErrors but it returns
+// an error if the test packages or their dependencies have errors.
+// Only test packages without errors are returned.
+func TestPackagesFor(ctx context.Context, p *Package, cover *TestCover) (pmain, ptest, pxtest *Package, err error) {
+ pmain, ptest, pxtest = TestPackagesAndErrors(ctx, p, cover)
+ for _, p1 := range []*Package{ptest, pxtest, pmain} {
+ if p1 == nil {
+ // pxtest may be nil
+ continue
+ }
+ if p1.Error != nil {
+ err = p1.Error
+ break
+ }
+ if len(p1.DepsErrors) > 0 {
+ perr := p1.DepsErrors[0]
+ err = perr
+ break
+ }
+ }
+ if pmain.Error != nil || len(pmain.DepsErrors) > 0 {
+ pmain = nil
+ }
+ if ptest.Error != nil || len(ptest.DepsErrors) > 0 {
+ ptest = nil
+ }
+ if pxtest != nil && (pxtest.Error != nil || len(pxtest.DepsErrors) > 0) {
+ pxtest = nil
+ }
+ return pmain, ptest, pxtest, err
+}
+
+// TestPackagesAndErrors returns three packages:
+// - pmain, the package main corresponding to the test binary (running tests in ptest and pxtest).
+// - ptest, the package p compiled with added "package p" test files.
+// - pxtest, the result of compiling any "package p_test" (external) test files.
+//
+// If the package has no "package p_test" test files, pxtest will be nil.
+// If the non-test compilation of package p can be reused
+// (for example, if there are no "package p" test files and
+// package p need not be instrumented for coverage or any other reason),
+// then the returned ptest == p.
+//
+// An error is returned if the testmain source cannot be completely generated
+// (for example, due to a syntax error in a test file). No error will be
+// returned for errors loading packages, but the Error or DepsError fields
+// of the returned packages may be set.
+//
+// The caller is expected to have checked that len(p.TestGoFiles)+len(p.XTestGoFiles) > 0,
+// or else there's no point in any of this.
+func TestPackagesAndErrors(ctx context.Context, p *Package, cover *TestCover) (pmain, ptest, pxtest *Package) {
+ ctx, span := trace.StartSpan(ctx, "load.TestPackagesAndErrors")
+ defer span.Done()
+
+ pre := newPreload()
+ defer pre.flush()
+ allImports := append([]string{}, p.TestImports...)
+ allImports = append(allImports, p.XTestImports...)
+ pre.preloadImports(allImports, p.Internal.Build)
+
+ var ptestErr, pxtestErr *PackageError
+ var imports, ximports []*Package
+ var stk ImportStack
+ var testEmbed, xtestEmbed map[string][]string
+ stk.Push(p.ImportPath + " (test)")
+ rawTestImports := str.StringList(p.TestImports)
+ for i, path := range p.TestImports {
+ p1 := loadImport(ctx, pre, path, p.Dir, p, &stk, p.Internal.Build.TestImportPos[path], ResolveImport)
+ if str.Contains(p1.Deps, p.ImportPath) || p1.ImportPath == p.ImportPath {
+ // Same error that loadPackage returns (via reusePackage) in pkg.go.
+ // Can't change that code, because that code is only for loading the
+ // non-test copy of a package.
+ ptestErr = &PackageError{
+ ImportStack: testImportStack(stk[0], p1, p.ImportPath),
+ Err: errors.New("import cycle not allowed in test"),
+ IsImportCycle: true,
+ }
+ }
+ p.TestImports[i] = p1.ImportPath
+ imports = append(imports, p1)
+ }
+ var err error
+ p.TestEmbedFiles, testEmbed, err = resolveEmbed(p.Dir, p.TestEmbedPatterns)
+ if err != nil && ptestErr == nil {
+ ptestErr = &PackageError{
+ ImportStack: stk.Copy(),
+ Err: err,
+ }
+ embedErr := err.(*EmbedError)
+ ptestErr.setPos(p.Internal.Build.TestEmbedPatternPos[embedErr.Pattern])
+ }
+ stk.Pop()
+
+ stk.Push(p.ImportPath + "_test")
+ pxtestNeedsPtest := false
+ rawXTestImports := str.StringList(p.XTestImports)
+ for i, path := range p.XTestImports {
+ p1 := loadImport(ctx, pre, path, p.Dir, p, &stk, p.Internal.Build.XTestImportPos[path], ResolveImport)
+ if p1.ImportPath == p.ImportPath {
+ pxtestNeedsPtest = true
+ } else {
+ ximports = append(ximports, p1)
+ }
+ p.XTestImports[i] = p1.ImportPath
+ }
+ p.XTestEmbedFiles, xtestEmbed, err = resolveEmbed(p.Dir, p.XTestEmbedPatterns)
+ if err != nil && pxtestErr == nil {
+ pxtestErr = &PackageError{
+ ImportStack: stk.Copy(),
+ Err: err,
+ }
+ embedErr := err.(*EmbedError)
+ pxtestErr.setPos(p.Internal.Build.XTestEmbedPatternPos[embedErr.Pattern])
+ }
+ stk.Pop()
+
+ // Test package.
+ if len(p.TestGoFiles) > 0 || p.Name == "main" || cover != nil && cover.Local {
+ ptest = new(Package)
+ *ptest = *p
+ ptest.Error = ptestErr
+ ptest.ForTest = p.ImportPath
+ ptest.GoFiles = nil
+ ptest.GoFiles = append(ptest.GoFiles, p.GoFiles...)
+ ptest.GoFiles = append(ptest.GoFiles, p.TestGoFiles...)
+ ptest.Target = ""
+ // Note: The preparation of the vet config requires that common
+ // indexes in ptest.Imports and ptest.Internal.RawImports
+ // all line up (but RawImports can be shorter than the others).
+ // That is, for 0 ≤ i < len(RawImports),
+ // RawImports[i] is the import string in the program text, and
+ // Imports[i] is the expanded import string (vendoring applied or relative path expanded away).
+ // Any implicitly added imports appear in Imports and Internal.Imports
+ // but not RawImports (because they were not in the source code).
+ // We insert TestImports, imports, and rawTestImports at the start of
+ // these lists to preserve the alignment.
+ // Note that p.Internal.Imports may not be aligned with p.Imports/p.Internal.RawImports,
+ // but we insert at the beginning there too just for consistency.
+ ptest.Imports = str.StringList(p.TestImports, p.Imports)
+ ptest.Internal.Imports = append(imports, p.Internal.Imports...)
+ ptest.Internal.RawImports = str.StringList(rawTestImports, p.Internal.RawImports)
+ ptest.Internal.ForceLibrary = true
+ ptest.Internal.BuildInfo = ""
+ ptest.Internal.Build = new(build.Package)
+ *ptest.Internal.Build = *p.Internal.Build
+ m := map[string][]token.Position{}
+ for k, v := range p.Internal.Build.ImportPos {
+ m[k] = append(m[k], v...)
+ }
+ for k, v := range p.Internal.Build.TestImportPos {
+ m[k] = append(m[k], v...)
+ }
+ ptest.Internal.Build.ImportPos = m
+ if testEmbed == nil && len(p.Internal.Embed) > 0 {
+ testEmbed = map[string][]string{}
+ }
+ for k, v := range p.Internal.Embed {
+ testEmbed[k] = v
+ }
+ ptest.Internal.Embed = testEmbed
+ ptest.EmbedFiles = str.StringList(p.EmbedFiles, p.TestEmbedFiles)
+ ptest.collectDeps()
+ } else {
+ ptest = p
+ }
+
+ // External test package.
+ if len(p.XTestGoFiles) > 0 {
+ pxtest = &Package{
+ PackagePublic: PackagePublic{
+ Name: p.Name + "_test",
+ ImportPath: p.ImportPath + "_test",
+ Root: p.Root,
+ Dir: p.Dir,
+ Goroot: p.Goroot,
+ GoFiles: p.XTestGoFiles,
+ Imports: p.XTestImports,
+ ForTest: p.ImportPath,
+ Module: p.Module,
+ Error: pxtestErr,
+ EmbedFiles: p.XTestEmbedFiles,
+ },
+ Internal: PackageInternal{
+ LocalPrefix: p.Internal.LocalPrefix,
+ Build: &build.Package{
+ ImportPos: p.Internal.Build.XTestImportPos,
+ },
+ Imports: ximports,
+ RawImports: rawXTestImports,
+
+ Asmflags: p.Internal.Asmflags,
+ Gcflags: p.Internal.Gcflags,
+ Ldflags: p.Internal.Ldflags,
+ Gccgoflags: p.Internal.Gccgoflags,
+ Embed: xtestEmbed,
+ },
+ }
+ if pxtestNeedsPtest {
+ pxtest.Internal.Imports = append(pxtest.Internal.Imports, ptest)
+ }
+ pxtest.collectDeps()
+ }
+
+ // Build main package.
+ pmain = &Package{
+ PackagePublic: PackagePublic{
+ Name: "main",
+ Dir: p.Dir,
+ GoFiles: []string{"_testmain.go"},
+ ImportPath: p.ImportPath + ".test",
+ Root: p.Root,
+ Imports: str.StringList(TestMainDeps),
+ Module: p.Module,
+ },
+ Internal: PackageInternal{
+ Build: &build.Package{Name: "main"},
+ BuildInfo: p.Internal.BuildInfo,
+ Asmflags: p.Internal.Asmflags,
+ Gcflags: p.Internal.Gcflags,
+ Ldflags: p.Internal.Ldflags,
+ Gccgoflags: p.Internal.Gccgoflags,
+ },
+ }
+
+ // The generated main also imports testing, regexp, and os.
+ // Also the linker introduces implicit dependencies reported by LinkerDeps.
+ stk.Push("testmain")
+ deps := TestMainDeps // cap==len, so safe for append
+ for _, d := range LinkerDeps(p) {
+ deps = append(deps, d)
+ }
+ for _, dep := range deps {
+ if dep == ptest.ImportPath {
+ pmain.Internal.Imports = append(pmain.Internal.Imports, ptest)
+ } else {
+ p1 := loadImport(ctx, pre, dep, "", nil, &stk, nil, 0)
+ pmain.Internal.Imports = append(pmain.Internal.Imports, p1)
+ }
+ }
+ stk.Pop()
+
+ if cover != nil && cover.Pkgs != nil {
+ // Add imports, but avoid duplicates.
+ seen := map[*Package]bool{p: true, ptest: true}
+ for _, p1 := range pmain.Internal.Imports {
+ seen[p1] = true
+ }
+ for _, p1 := range cover.Pkgs {
+ if !seen[p1] {
+ seen[p1] = true
+ pmain.Internal.Imports = append(pmain.Internal.Imports, p1)
+ }
+ }
+ }
+
+ allTestImports := make([]*Package, 0, len(pmain.Internal.Imports)+len(imports)+len(ximports))
+ allTestImports = append(allTestImports, pmain.Internal.Imports...)
+ allTestImports = append(allTestImports, imports...)
+ allTestImports = append(allTestImports, ximports...)
+ setToolFlags(allTestImports...)
+
+ // Do initial scan for metadata needed for writing _testmain.go
+ // Use that metadata to update the list of imports for package main.
+ // The list of imports is used by recompileForTest and by the loop
+ // afterward that gathers t.Cover information.
+ t, err := loadTestFuncs(ptest)
+ if err != nil && pmain.Error == nil {
+ pmain.setLoadPackageDataError(err, p.ImportPath, &stk, nil)
+ }
+ t.Cover = cover
+ if len(ptest.GoFiles)+len(ptest.CgoFiles) > 0 {
+ pmain.Internal.Imports = append(pmain.Internal.Imports, ptest)
+ pmain.Imports = append(pmain.Imports, ptest.ImportPath)
+ t.ImportTest = true
+ }
+ if pxtest != nil {
+ pmain.Internal.Imports = append(pmain.Internal.Imports, pxtest)
+ pmain.Imports = append(pmain.Imports, pxtest.ImportPath)
+ t.ImportXtest = true
+ }
+ pmain.collectDeps()
+
+ // Sort and dedup pmain.Imports.
+ // Only matters for go list -test output.
+ sort.Strings(pmain.Imports)
+ w := 0
+ for _, path := range pmain.Imports {
+ if w == 0 || path != pmain.Imports[w-1] {
+ pmain.Imports[w] = path
+ w++
+ }
+ }
+ pmain.Imports = pmain.Imports[:w]
+ pmain.Internal.RawImports = str.StringList(pmain.Imports)
+
+ // Replace pmain's transitive dependencies with test copies, as necessary.
+ recompileForTest(pmain, p, ptest, pxtest)
+
+ // Should we apply coverage analysis locally,
+ // only for this package and only for this test?
+ // Yes, if -cover is on but -coverpkg has not specified
+ // a list of packages for global coverage.
+ if cover != nil && cover.Local {
+ ptest.Internal.CoverMode = cover.Mode
+ var coverFiles []string
+ coverFiles = append(coverFiles, ptest.GoFiles...)
+ coverFiles = append(coverFiles, ptest.CgoFiles...)
+ ptest.Internal.CoverVars = cover.DeclVars(ptest, coverFiles...)
+ }
+
+ for _, cp := range pmain.Internal.Imports {
+ if len(cp.Internal.CoverVars) > 0 {
+ t.Cover.Vars = append(t.Cover.Vars, coverInfo{cp, cp.Internal.CoverVars})
+ }
+ }
+
+ data, err := formatTestmain(t)
+ if err != nil && pmain.Error == nil {
+ pmain.Error = &PackageError{Err: err}
+ }
+ if data != nil {
+ pmain.Internal.TestmainGo = &data
+ }
+
+ return pmain, ptest, pxtest
+}
+
+func testImportStack(top string, p *Package, target string) []string {
+ stk := []string{top, p.ImportPath}
+Search:
+ for p.ImportPath != target {
+ for _, p1 := range p.Internal.Imports {
+ if p1.ImportPath == target || str.Contains(p1.Deps, target) {
+ stk = append(stk, p1.ImportPath)
+ p = p1
+ continue Search
+ }
+ }
+ // Can't happen, but in case it does...
+ stk = append(stk, "<lost path to cycle>")
+ break
+ }
+ return stk
+}
+
+// recompileForTest copies and replaces certain packages in pmain's dependency
+// graph. This is necessary for two reasons. First, if ptest is different than
+// preal, packages that import the package under test should get ptest instead
+// of preal. This is particularly important if pxtest depends on functionality
+// exposed in test sources in ptest. Second, if there is a main package
+// (other than pmain) anywhere, we need to set p.Internal.ForceLibrary and
+// clear p.Internal.BuildInfo in the test copy to prevent link conflicts.
+// This may happen if both -coverpkg and the command line patterns include
+// multiple main packages.
+func recompileForTest(pmain, preal, ptest, pxtest *Package) {
+ // The "test copy" of preal is ptest.
+ // For each package that depends on preal, make a "test copy"
+ // that depends on ptest. And so on, up the dependency tree.
+ testCopy := map[*Package]*Package{preal: ptest}
+ for _, p := range PackageList([]*Package{pmain}) {
+ if p == preal {
+ continue
+ }
+ // Copy on write.
+ didSplit := p == pmain || p == pxtest
+ split := func() {
+ if didSplit {
+ return
+ }
+ didSplit = true
+ if testCopy[p] != nil {
+ panic("recompileForTest loop")
+ }
+ p1 := new(Package)
+ testCopy[p] = p1
+ *p1 = *p
+ p1.ForTest = preal.ImportPath
+ p1.Internal.Imports = make([]*Package, len(p.Internal.Imports))
+ copy(p1.Internal.Imports, p.Internal.Imports)
+ p1.Imports = make([]string, len(p.Imports))
+ copy(p1.Imports, p.Imports)
+ p = p1
+ p.Target = ""
+ p.Internal.BuildInfo = ""
+ p.Internal.ForceLibrary = true
+ }
+
+ // Update p.Internal.Imports to use test copies.
+ for i, imp := range p.Internal.Imports {
+ if p1 := testCopy[imp]; p1 != nil && p1 != imp {
+ split()
+ p.Internal.Imports[i] = p1
+ }
+ }
+
+ // Force main packages the test imports to be built as libraries.
+ // Normal imports of main packages are forbidden by the package loader,
+ // but this can still happen if -coverpkg patterns include main packages:
+ // covered packages are imported by pmain. Linking multiple packages
+ // compiled with '-p main' causes duplicate symbol errors.
+ // See golang.org/issue/30907, golang.org/issue/34114.
+ if p.Name == "main" && p != pmain && p != ptest {
+ split()
+ }
+ }
+}
+
+// isTestFunc tells whether fn has the type of a testing function. arg
+// specifies the parameter type we look for: B, M or T.
+func isTestFunc(fn *ast.FuncDecl, arg string) bool {
+ if fn.Type.Results != nil && len(fn.Type.Results.List) > 0 ||
+ fn.Type.Params.List == nil ||
+ len(fn.Type.Params.List) != 1 ||
+ len(fn.Type.Params.List[0].Names) > 1 {
+ return false
+ }
+ ptr, ok := fn.Type.Params.List[0].Type.(*ast.StarExpr)
+ if !ok {
+ return false
+ }
+ // We can't easily check that the type is *testing.M
+ // because we don't know how testing has been imported,
+ // but at least check that it's *M or *something.M.
+ // Same applies for B and T.
+ if name, ok := ptr.X.(*ast.Ident); ok && name.Name == arg {
+ return true
+ }
+ if sel, ok := ptr.X.(*ast.SelectorExpr); ok && sel.Sel.Name == arg {
+ return true
+ }
+ return false
+}
+
+// isTest tells whether name looks like a test (or benchmark, according to prefix).
+// It is a Test (say) if there is a character after Test that is not a lower-case letter.
+// We don't want TesticularCancer.
+func isTest(name, prefix string) bool {
+ if !strings.HasPrefix(name, prefix) {
+ return false
+ }
+ if len(name) == len(prefix) { // "Test" is ok
+ return true
+ }
+ rune, _ := utf8.DecodeRuneInString(name[len(prefix):])
+ return !unicode.IsLower(rune)
+}
+
+type coverInfo struct {
+ Package *Package
+ Vars map[string]*CoverVar
+}
+
+// loadTestFuncs returns the testFuncs describing the tests that will be run.
+// The returned testFuncs is always non-nil, even if an error occurred while
+// processing test files.
+func loadTestFuncs(ptest *Package) (*testFuncs, error) {
+ t := &testFuncs{
+ Package: ptest,
+ }
+ var err error
+ for _, file := range ptest.TestGoFiles {
+ if lerr := t.load(filepath.Join(ptest.Dir, file), "_test", &t.ImportTest, &t.NeedTest); lerr != nil && err == nil {
+ err = lerr
+ }
+ }
+ for _, file := range ptest.XTestGoFiles {
+ if lerr := t.load(filepath.Join(ptest.Dir, file), "_xtest", &t.ImportXtest, &t.NeedXtest); lerr != nil && err == nil {
+ err = lerr
+ }
+ }
+ return t, err
+}
+
+// formatTestmain returns the content of the _testmain.go file for t.
+func formatTestmain(t *testFuncs) ([]byte, error) {
+ var buf bytes.Buffer
+ if err := testmainTmpl.Execute(&buf, t); err != nil {
+ return nil, err
+ }
+ return buf.Bytes(), nil
+}
+
+type testFuncs struct {
+ Tests []testFunc
+ Benchmarks []testFunc
+ Examples []testFunc
+ TestMain *testFunc
+ Package *Package
+ ImportTest bool
+ NeedTest bool
+ ImportXtest bool
+ NeedXtest bool
+ Cover *TestCover
+}
+
+// ImportPath returns the import path of the package being tested, if it is within GOPATH.
+// This is printed by the testing package when running benchmarks.
+func (t *testFuncs) ImportPath() string {
+ pkg := t.Package.ImportPath
+ if strings.HasPrefix(pkg, "_/") {
+ return ""
+ }
+ if pkg == "command-line-arguments" {
+ return ""
+ }
+ return pkg
+}
+
+// Covered returns a string describing which packages are being tested for coverage.
+// If the covered package is the same as the tested package, it returns the empty string.
+// Otherwise it is a comma-separated human-readable list of packages beginning with
+// " in", ready for use in the coverage message.
+func (t *testFuncs) Covered() string {
+ if t.Cover == nil || t.Cover.Paths == nil {
+ return ""
+ }
+ return " in " + strings.Join(t.Cover.Paths, ", ")
+}
+
+// Tested returns the name of the package being tested.
+func (t *testFuncs) Tested() string {
+ return t.Package.Name
+}
+
+type testFunc struct {
+ Package string // imported package name (_test or _xtest)
+ Name string // function name
+ Output string // output, for examples
+ Unordered bool // output is allowed to be unordered.
+}
+
+var testFileSet = token.NewFileSet()
+
+func (t *testFuncs) load(filename, pkg string, doImport, seen *bool) error {
+ f, err := parser.ParseFile(testFileSet, filename, nil, parser.ParseComments)
+ if err != nil {
+ return err
+ }
+ for _, d := range f.Decls {
+ n, ok := d.(*ast.FuncDecl)
+ if !ok {
+ continue
+ }
+ if n.Recv != nil {
+ continue
+ }
+ name := n.Name.String()
+ switch {
+ case name == "TestMain":
+ if isTestFunc(n, "T") {
+ t.Tests = append(t.Tests, testFunc{pkg, name, "", false})
+ *doImport, *seen = true, true
+ continue
+ }
+ err := checkTestFunc(n, "M")
+ if err != nil {
+ return err
+ }
+ if t.TestMain != nil {
+ return errors.New("multiple definitions of TestMain")
+ }
+ t.TestMain = &testFunc{pkg, name, "", false}
+ *doImport, *seen = true, true
+ case isTest(name, "Test"):
+ err := checkTestFunc(n, "T")
+ if err != nil {
+ return err
+ }
+ t.Tests = append(t.Tests, testFunc{pkg, name, "", false})
+ *doImport, *seen = true, true
+ case isTest(name, "Benchmark"):
+ err := checkTestFunc(n, "B")
+ if err != nil {
+ return err
+ }
+ t.Benchmarks = append(t.Benchmarks, testFunc{pkg, name, "", false})
+ *doImport, *seen = true, true
+ }
+ }
+ ex := doc.Examples(f)
+ sort.Slice(ex, func(i, j int) bool { return ex[i].Order < ex[j].Order })
+ for _, e := range ex {
+ *doImport = true // import test file whether executed or not
+ if e.Output == "" && !e.EmptyOutput {
+ // Don't run examples with no output.
+ continue
+ }
+ t.Examples = append(t.Examples, testFunc{pkg, "Example" + e.Name, e.Output, e.Unordered})
+ *seen = true
+ }
+ return nil
+}
+
+func checkTestFunc(fn *ast.FuncDecl, arg string) error {
+ if !isTestFunc(fn, arg) {
+ name := fn.Name.String()
+ pos := testFileSet.Position(fn.Pos())
+ return fmt.Errorf("%s: wrong signature for %s, must be: func %s(%s *testing.%s)", pos, name, name, strings.ToLower(arg), arg)
+ }
+ return nil
+}
+
+var testmainTmpl = lazytemplate.New("main", `
+// Code generated by 'go test'. DO NOT EDIT.
+
+package main
+
+import (
+ "os"
+{{if .TestMain}}
+ "reflect"
+{{end}}
+ "testing"
+ "testing/internal/testdeps"
+
+{{if .ImportTest}}
+ {{if .NeedTest}}_test{{else}}_{{end}} {{.Package.ImportPath | printf "%q"}}
+{{end}}
+{{if .ImportXtest}}
+ {{if .NeedXtest}}_xtest{{else}}_{{end}} {{.Package.ImportPath | printf "%s_test" | printf "%q"}}
+{{end}}
+{{if .Cover}}
+{{range $i, $p := .Cover.Vars}}
+ _cover{{$i}} {{$p.Package.ImportPath | printf "%q"}}
+{{end}}
+{{end}}
+)
+
+var tests = []testing.InternalTest{
+{{range .Tests}}
+ {"{{.Name}}", {{.Package}}.{{.Name}}},
+{{end}}
+}
+
+var benchmarks = []testing.InternalBenchmark{
+{{range .Benchmarks}}
+ {"{{.Name}}", {{.Package}}.{{.Name}}},
+{{end}}
+}
+
+var examples = []testing.InternalExample{
+{{range .Examples}}
+ {"{{.Name}}", {{.Package}}.{{.Name}}, {{.Output | printf "%q"}}, {{.Unordered}}},
+{{end}}
+}
+
+func init() {
+ testdeps.ImportPath = {{.ImportPath | printf "%q"}}
+}
+
+{{if .Cover}}
+
+// Only updated by init functions, so no need for atomicity.
+var (
+ coverCounters = make(map[string][]uint32)
+ coverBlocks = make(map[string][]testing.CoverBlock)
+)
+
+func init() {
+ {{range $i, $p := .Cover.Vars}}
+ {{range $file, $cover := $p.Vars}}
+ coverRegisterFile({{printf "%q" $cover.File}}, _cover{{$i}}.{{$cover.Var}}.Count[:], _cover{{$i}}.{{$cover.Var}}.Pos[:], _cover{{$i}}.{{$cover.Var}}.NumStmt[:])
+ {{end}}
+ {{end}}
+}
+
+func coverRegisterFile(fileName string, counter []uint32, pos []uint32, numStmts []uint16) {
+ if 3*len(counter) != len(pos) || len(counter) != len(numStmts) {
+ panic("coverage: mismatched sizes")
+ }
+ if coverCounters[fileName] != nil {
+ // Already registered.
+ return
+ }
+ coverCounters[fileName] = counter
+ block := make([]testing.CoverBlock, len(counter))
+ for i := range counter {
+ block[i] = testing.CoverBlock{
+ Line0: pos[3*i+0],
+ Col0: uint16(pos[3*i+2]),
+ Line1: pos[3*i+1],
+ Col1: uint16(pos[3*i+2]>>16),
+ Stmts: numStmts[i],
+ }
+ }
+ coverBlocks[fileName] = block
+}
+{{end}}
+
+func main() {
+{{if .Cover}}
+ testing.RegisterCover(testing.Cover{
+ Mode: {{printf "%q" .Cover.Mode}},
+ Counters: coverCounters,
+ Blocks: coverBlocks,
+ CoveredPackages: {{printf "%q" .Covered}},
+ })
+{{end}}
+ m := testing.MainStart(testdeps.TestDeps{}, tests, benchmarks, examples)
+{{with .TestMain}}
+ {{.Package}}.{{.Name}}(m)
+ os.Exit(int(reflect.ValueOf(m).Elem().FieldByName("exitCode").Int()))
+{{else}}
+ os.Exit(m.Run())
+{{end}}
+}
+
+`)
generated by cgit v1.2.3 (git 2.39.1) at 2024-09-27 04:19:37 +0000