go/src/cmd/go/internal/load/test.go

var TestMainDeps …

type TestCover …

// 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, opts PackageOpts, p *Package, cover *TestCover) (pmain, ptest, pxtest *Package, err error) { … }

// 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.
//
// If done is non-nil, TestPackagesAndErrors will finish filling out the returned
// package structs in a goroutine and call done once finished. The members of the
// returned packages should not be accessed until done is called.
//
// 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, done func(), opts PackageOpts, p *Package, cover *TestCover) (pmain, ptest, pxtest *Package) { … }

// 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) *PackageError { … }

// isTestFunc tells whether fn has the type of a testing function. arg
// specifies the parameter type we look for: B, F, M or T.
func isTestFunc(fn *ast.FuncDecl, arg string) bool { … }

// 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 { … }

type coverInfo …

// 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) { … }

// formatTestmain returns the content of the _testmain.go file for t.
func formatTestmain(t *testFuncs) ([]byte, error) { … }

type testFuncs …

// 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 { … }

// 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 { … }

func (t *testFuncs) CoverSelectedPackages() string { … }

// Tested returns the name of the package being tested.
func (t *testFuncs) Tested() string { … }

type testFunc …

var testFileSet …

func (t *testFuncs) load(filename, pkg string, doImport, seen *bool) error { … }

func checkTestFunc(fn *ast.FuncDecl, arg string) error { … }

var testmainTmpl …

var testmainTmplNewCoverage …