Get touch tests working at all, and with new API.

client/tests/client/touch/touch_tests.dart

Index: client/tests/client/touch/touch_tests.dart
diff --git a/client/tests/client/touch/touch_tests.dart b/client/tests/client/touch/touch_tests.dart
new file mode 100644
index 0000000000000000000000000000000000000000..60fb82e6ca4142325ac526f4b10093a4ea502a08
--- /dev/null
+++ b/client/tests/client/touch/touch_tests.dart
@@ -0,0 +1,50 @@
+// Copyright (c) 2011, 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.
+
+#library('touch_tests');
+
+#import('dart:html'); // TODO(rnystrom): Only needed to tell architecture.py
+                      // that this is a web test. Come up with cleaner solution.
+#import('../../../testing/unittest/unittest.dart');
+#import('../../../touch/touch.dart');
+
+main() {
+  test('Solver', () {
+    expect(Solver.solve((x) => x * x, 81, 10)).approxEquals(9);
+    expect(Solver.solve((x) => x * x, 0, 10)).approxEquals(0);
+    expect(Solver.solve((x) => x * x, 1.5625, 10)).approxEquals(1.25);
+    expect(Solver.solve((x) => 1 / x, 10, 1)).approxEquals(0.1);
+  });
+
+  group('Momentum', () {
+    test('SingleDimensionPhysics', () {
+      expect(new SingleDimensionPhysics().solve(0, 0, 1)).equals(0);
+      expect(new SingleDimensionPhysics().solve(0, 5, 1)).equals(0);
+      expect(new SingleDimensionPhysics().solve(0, 100, 1)).equals(0);
+      expect(new SingleDimensionPhysics().solve(0, 100, 0.5)).equals(0);
+    });
+
+    test('TimeoutMomentum()', () {
+      final delegate = new TestMomentumDelegate();
+      final momentum = new TimeoutMomentum(null);
+    });
+  });
+}
+
+class TestMomentumDelegate {
+  Function onDecelerateCallback;
+  Function onDecelerationEndCallback;
+
+  void onDecelerate(num x, num y,
+                    [num duration = 0, String timingFunction = null]) {
+     onDecelerateCallback(x, y, duration, timingFunction);
+  }
+
+  /**
+   * Callback for end of deceleration.
+   */
+  void onDecelerationEnd() {
+    onDecelerationEndCallback();
+  }
+}