Add a LoadSuite class.

test/runner/compact_reporter_test.dart

 // Copyright (c) 2015, 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.
 
 @TestOn("vm")
 
 import 'dart:io';
 
 import 'package:path/path.dart' as p;
 import 'package:test/src/util/io.dart';
 import 'package:test/test.dart';
 
 import '../io.dart';
 
 void main() {
   test("reports when no tests are run", () {
     return withTempDir((path) {
       new File(p.join(path, "test.dart")).writeAsStringSync("void main() {}");
       var result = runTest(["-r", "compact", "test.dart"],
           workingDirectory: path);
-      expect(result.stdout, equals("No tests ran.\n"));
+      expect(result.stdout, contains("No tests ran."));
     });
   });
 
   test("runs several successful tests and reports when each completes", () {
     _expectReport("""
         test('success 1', () {});
         test('success 2', () {});
         test('success 3', () {});""",
         """
+        +0: loading test.dart
         +0: success 1
         +1: success 1
         +1: success 2
         +2: success 2
         +2: success 3
         +3: success 3
         +3: All tests passed!""");
   });
 
   test("runs several failing tests and reports when each fails", () {
     _expectReport("""
         test('failure 1', () => throw new TestFailure('oh no'));
         test('failure 2', () => throw new TestFailure('oh no'));
         test('failure 3', () => throw new TestFailure('oh no'));""",
         """
+        +0: loading test.dart
         +0: failure 1
         +0 -1: failure 1
           oh no
           test.dart 6:33  main.<fn>
 
 
         +0 -1: failure 2
         +0 -2: failure 2
           oh no
           test.dart 7:33  main.<fn>
@@ skipping 25 matching lines @@
     });
   });
 
   test("runs failing tests along with successful tests", () {
     _expectReport("""
         test('failure 1', () => throw new TestFailure('oh no'));
         test('success 1', () {});
         test('failure 2', () => throw new TestFailure('oh no'));
         test('success 2', () {});""",
         """
+        +0: loading test.dart
         +0: failure 1
         +0 -1: failure 1
           oh no
           test.dart 6:33  main.<fn>
 
 
         +0 -1: success 1
         +1 -1: success 1
         +1 -1: failure 2
         +1 -2: failure 2
@@ skipping 12 matching lines @@
         // errors have been thrown.
         var completer = new Completer();
         test('failures', () {
           new Future.microtask(() => throw 'first error');
           new Future.microtask(() => throw 'second error');
           new Future.microtask(() => throw 'third error');
           new Future.microtask(completer.complete);
         });
         test('wait', () => completer.future);""",
         """
+        +0: loading test.dart
         +0: failures
         +0 -1: failures
           first error
           test.dart 10:38  main.<fn>.<fn>
           ===== asynchronous gap ===========================
           dart:async       Future.Future.microtask
           test.dart 10:15  main.<fn>
 
           second error
           test.dart 11:38  main.<fn>.<fn>
@@ skipping 16 matching lines @@
   group("print:", () {
     test("handles multiple prints", () {
       _expectReport("""
         test('test', () {
           print("one");
           print("two");
           print("three");
           print("four");
         });""",
         """
+        +0: loading test.dart
         +0: test
         one
         two
         three
         four
 
         +1: test
         +1: All tests passed!""");
     });
 
@@ skipping 10 matching lines @@
             new Future(() => print("three"));
             new Future(() => print("four"));
             new Future(testDone.complete);
           });
         });
 
         test('wait', () {
           waitStarted.complete();
           return testDone.future;
         });""", """
+        +0: loading test.dart
         +0: test
         +1: test
         +1: wait
         +1: test
         one
         two
         three
         four
 
         +2: wait
@@ skipping 18 matching lines @@
             completer.complete();
           });
 
           print("one");
           print("two");
           throw "first error";
         });
 
         test('wait', () => completer.future);""",
         """
+        +0: loading test.dart
         +0: test
         one
         two
 
         +0 -1: test
           first error
           test.dart 24:11  main.<fn>
 
         three
         four
@@ skipping 12 matching lines @@
     });
   });
 
   group("skip:", () {
     test("displays skipped tests separately", () {
       _expectReport("""
           test('skip 1', () {}, skip: true);
           test('skip 2', () {}, skip: true);
           test('skip 3', () {}, skip: true);""",
           """
+          +0: loading test.dart
           +0: skip 1
           +0 ~1: skip 1
           +0 ~1: skip 2
           +0 ~2: skip 2
           +0 ~2: skip 3
           +0 ~3: skip 3
           +0 ~3: All tests skipped.""");
     });
 
     test("runs skipped tests along with successful tests", () {
       _expectReport("""
           test('skip 1', () {}, skip: true);
           test('success 1', () {});
           test('skip 2', () {}, skip: true);
           test('success 2', () {});""",
           """
+          +0: loading test.dart
           +0: skip 1
           +0 ~1: skip 1
           +0 ~1: success 1
           +1 ~1: success 1
           +1 ~1: skip 2
           +1 ~2: skip 2
           +1 ~2: success 2
           +2 ~2: success 2
           +2 ~2: All tests passed!""");
     });
 
     test("runs skipped tests along with successful and failing tests", () {
       _expectReport("""
           test('failure 1', () => throw new TestFailure('oh no'));
           test('skip 1', () {}, skip: true);
           test('success 1', () {});
           test('failure 2', () => throw new TestFailure('oh no'));
           test('skip 2', () {}, skip: true);
           test('success 2', () {});""",
           """
+          +0: loading test.dart
           +0: failure 1
           +0 -1: failure 1
             oh no
             test.dart 6:35  main.<fn>
 
 
           +0 -1: skip 1
           +0 ~1 -1: skip 1
           +0 ~1 -1: success 1
           +1 ~1 -1: success 1
           +1 ~1 -1: failure 2
           +1 ~1 -2: failure 2
             oh no
             test.dart 9:35  main.<fn>
 
 
           +1 ~1 -2: skip 2
           +1 ~2 -2: skip 2
           +1 ~2 -2: success 2
           +2 ~2 -2: success 2
           +2 ~2 -2: Some tests failed.""");
     });
 
     test("displays the skip reason if available", () {
       _expectReport("""
           test('skip 1', () {}, skip: 'some reason');
           test('skip 2', () {}, skip: 'or another');""",
           """
+          +0: loading test.dart
           +0: skip 1
           +0 ~1: skip 1
             Skip: some reason
 
           +0 ~1: skip 2
           +0 ~2: skip 2
             Skip: or another
 
           +0 ~2: All tests skipped.""");
     });
@@ skipping 33 matching lines @@
     // Un-indent the expected string.
     var indentation = expected.indexOf(new RegExp("[^ ]"));
     expected = expected.split("\n").map((line) {
       if (line.isEmpty) return line;
       return line.substring(indentation);
     }).join("\n");
 
     expect(actual, equals(expected));
   }), completes);
 }