go/src/cmd/cover/cover_test.go

const testdata …

// testcover returns the path to the cmd/cover binary that we are going to
// test. At one point this was created via "go build"; we now reuse the unit
// test executable itself.
func testcover(t testing.TB) string { … }

var testTempDir …

var debug …

// TestMain used here so that we can leverage the test executable
// itself as a cmd/cover executable; compare to similar usage in
// the cmd/go tests.
func TestMain(m *testing.M) { … }

var tdmu …

var tdcount …

func tempDir(t *testing.T) string { … }

// TestCoverWithToolExec runs a set of subtests that all make use of a
// "-toolexec" wrapper program to invoke the cover test executable
// itself via "go test -cover".
func TestCoverWithToolExec(t *testing.T) { … }

// Execute this command sequence:
//
//	replace the word LINE with the line number < testdata/test.go > testdata/test_line.go
//	testcover -mode=count -var=CoverTest -o ./testdata/test_cover.go testdata/test_line.go
//	go run ./testdata/main.go ./testdata/test.go
func TestCover(t *testing.T) { … }

// TestDirectives checks that compiler directives are preserved and positioned
// correctly. Directives that occur before top-level declarations should remain
// above those declarations, even if they are not part of the block of
// documentation comments.
func TestDirectives(t *testing.T) { … }

type directiveInfo …

func findDirectives(source []byte) []directiveInfo { … }

// Makes sure that `cover -func=profile.cov` reports accurate coverage.
// Issue #20515.
func TestCoverFunc(t *testing.T) { … }

// Check that cover produces correct HTML.
// Issue #25767.
func testCoverHTML(t *testing.T, toolexecArg string) { … }

// Test HTML processing with a source file not run through gofmt.
// Issue #27350.
func testHtmlUnformatted(t *testing.T, toolexecArg string) { … }

const lineDupContents …

const lineDupTestContents …

// Test -func with duplicate //line directives with different numbers
// of statements.
func testFuncWithDuplicateLines(t *testing.T, toolexecArg string) { … }

func run(c *exec.Cmd, t *testing.T) { … }

func runExpectingError(c *exec.Cmd, t *testing.T) string { … }

// Test instrumentation of package that ends before an expected
// trailing newline following package clause. Issue #58370.
func testMissingTrailingNewlineIssue58370(t *testing.T, toolexecArg string) { … }

func TestSrcPathWithNewline(t *testing.T) { … }