blob: 968458bafddbc9d4cc900d316771df75da0da2e0 [file] [log] [blame]
// Copyright (c) 2019, the Dart project authors. Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.
/// Looks for ".dart" files in "tests/" that appear to be orphaned. That means
/// they don't end in "_test.dart" so aren't run as tests by the test_runner,
/// but they also don't appear to be referenced by any other tests.
/// Usually this means that someone accidentally left off the "_test" and the
/// file is supposed to be a test but is silently getting ignored.
import 'dart:io';
import 'package:analyzer/dart/analysis/analysis_context.dart';
import 'package:analyzer/dart/analysis/context_builder.dart';
import 'package:analyzer/dart/analysis/context_locator.dart';
import 'package:analyzer/dart/analysis/results.dart';
import 'package:analyzer/dart/ast/ast.dart';
import 'package:test_runner/src/path.dart';
AnalysisContext _analysisContext;
void main(List<String> arguments) {
var suites = Directory('tests').listSync();
suites.sort((a, b) => a.path.compareTo(b.path));
for (var entry in suites) {
// Skip the co19 tests since they don't use '_test.dart'.
if (entry is Directory && !entry.path.contains('co19')) {
void _initAnalysisContext() {
var roots = ContextLocator().locateRoots(includedPaths: ['test']);
if (roots.length != 1) {
throw StateError('Expected to find exactly one context root, got $roots');
_analysisContext = ContextBuilder().createContext(contextRoot: roots[0]);
void _checkTestDirectory(Directory directory) {
print('-- ${directory.path} --');
var paths = directory
.listSync(recursive: true)
.map((entry) => entry.path)
.where((path) => path.endsWith('.dart'))
// Collect the set of all files that are known to be referred to by others.
print('Finding referenced files...');
var importedPaths = <String>{};
for (var path in paths) {
_parseReferences(importedPaths, path);
// Find the ".dart" files that don't end in "_test.dart" but also aren't used
// by another library. Those should probably be tests.
var hasOrphan = false;
for (var path in paths) {
if (!path.endsWith('_test.dart') && !importedPaths.contains(path)) {
print('Suspected orphan: $path');
hasOrphan = true;
if (!hasOrphan) print('No orphans :)');
void _parseReferences(Set<String> importedPaths, String filePath) {
var absolute = Path(filePath).absolute.toNativePath();
var parseResult = _analysisContext.currentSession.getParsedUnit(absolute);
var unit = (parseResult as ParsedUnitResult).unit;
void add(String importPath) {
if (importPath.startsWith('dart:')) return;
var resolved = Uri.file(filePath).resolve(importPath).path;
for (var directive in unit.directives) {
if (directive is UriBasedDirective) {