go/src/cmd/internal/moddeps/moddeps_test.go

// TestAllDependencies ensures dependencies of all
// modules in GOROOT are in a consistent state.
//
// In short mode, it does a limited quick check and stops there.
// In long mode, it also makes a copy of the entire GOROOT tree
// and requires network access to perform more thorough checks.
// Keep this distinction in mind when adding new checks.
//
// See issues 36852, 41409, and 43687.
// (Also see golang.org/issue/27348.)
func TestAllDependencies(t *testing.T) { … }

// packagePattern returns a package pattern that matches all packages
// in the module modulePath, and ideally as few others as possible.
func packagePattern(modulePath string) string { … }

// makeGOROOTCopy makes a temporary copy of the current GOROOT tree.
// The goal is to allow the calling test t to safely mutate a GOROOT
// copy without also modifying the original GOROOT.
//
// It copies the entire tree as is, with the exception of the GOROOT/.git
// directory, which is skipped, and the GOROOT/{bin,pkg} directories,
// which are symlinked. This is done for speed, since a GOROOT tree is
// functional without being in a Git repository, and bin and pkg are
// deemed safe to share for the purpose of the TestAllDependencies test.
func makeGOROOTCopy(t *testing.T) string { … }

type runner …

// run runs the command and requires that it succeeds.
func (r runner) run(t *testing.T, args ...string) { … }

// TestDependencyVersionsConsistent verifies that each module in GOROOT that
// requires a given external dependency requires the same version of that
// dependency.
//
// This property allows us to maintain a single release branch of each such
// dependency, minimizing the number of backports needed to pull in critical
// fixes. It also ensures that any bug detected and fixed in one GOROOT module
// (such as "std") is fixed in all other modules (such as "cmd") as well.
func TestDependencyVersionsConsistent(t *testing.T) { … }

type gorootModule …

// findGorootModules returns the list of modules found in the GOROOT source tree.
func findGorootModules(t *testing.T) []gorootModule { … }

var goroot …