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packages/charted/test.disabled/transition/transition_test.dart

Index: packages/charted/test.disabled/transition/transition_test.dart
diff --git a/packages/charted/test.disabled/transition/transition_test.dart b/packages/charted/test.disabled/transition/transition_test.dart
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+/*
+ * Copyright 2014 Google Inc. All rights reserved.
+ *
+ * Use of this source code is governed by a BSD-style
+ * license that can be found in the LICENSE file or at
+ * https://developers.google.com/open-source/licenses/bsd
+ */
+
+library charted.test.transition;
+
+import 'dart:async';
+import 'dart:html' show document, Element;
+import 'package:charted/core/utils.dart';
+import 'package:charted/interpolators/interpolators.dart';
+import 'package:charted/selection/selection.dart';
+import 'package:charted/selection/transition.dart';
+import 'package:unittest/unittest.dart';
+
+transitionTests() {
+  const TIME_BIAS = 50;
+  String markup =
+      '<div class="transition-container">'
+        '<div class="delay-100"></div>'
+        '<div class="delay-500"></div>'
+        '<div class="delay-callback"></div>'
+        '<div class="delay-callback"></div>'
+        '<div class="delay-callback"></div>'
+        '<div class="duration-100"></div>'
+        '<div class="duration-callback"></div>'
+        '<div class="duration-callback"></div>'
+        '<div class="duration-callback"></div>'
+        '<div class="attr-100"></div>'
+        '<div class="attr-callback"></div>'
+        '<div class="attr-callback"></div>'
+        '<div class="attr-callback"></div>'
+        '<div class="style-callback"></div>'
+        '<div class="style-callback"></div>'
+        '<div class="style-callback"></div>'
+        '<div class="attr-tween"></div>'
+        '<div class="attr-tween"></div>'
+        '<div class="attr-tween"></div>'
+        '<div class="style-tween"></div>'
+        '<div class="style-tween"></div>'
+        '<div class="style-tween"></div>'
+        '<div class="chained-transition"></div>'
+        '<div class="transition-select">'
+          '<div class="select-item"></div>'
+        '</div>'
+        '<div class="transition-select-all">'
+          '<div class="select-item"></div>'
+          '<div class="select-item"></div>'
+          '<div class="select-item"></div>'
+        '</div>'
+      '</div>';
+
+  Element root;
+  SelectionScope scope;
+
+  setup() {
+    root = new Element.html(markup);
+    document.documentElement.append(root);
+    scope = new SelectionScope.selector('.transition-container');
+  }
+
+  teardown() {
+    root.remove();
+  }
+
+  setUp(setup);
+  tearDown(teardown);
+
+  void checkColor(e, color, [bool equal = true]) {
+    if (color == null) {
+      expect(e.attributes['style'], isNull);
+    } else if (equal) {
+      expect(e.attributes['style'], equals('background-color: ${color};'));
+    } else {
+      expect(e.attributes['style']
+        .compareTo('background-color: ${color};') == 0, isFalse);
+    }
+  }
+
+  void checkHeight(e, height, [bool equal = true]) {
+    if (height == null) {
+      expect(e.attributes['height'], isNull);
+    } else if (equal) {
+      expect(e.attributes['height'], equals('${height}'));
+    } else {
+      expect(e.attributes['height'].compareTo('${height}') == 0, isFalse);
+    }
+  }
+
+  test('Transition.delay delays specific time before transition', () {
+    Selection transition1 = scope.select('.delay-100');
+    transition1.transition()
+      ..style('background-color', '#ffffff')
+      ..delay(100);
+    new Timer(new Duration(milliseconds:100 - TIME_BIAS), expectAsync(() {
+      transition1.each((d, i, Element e) {
+        checkColor(e, null);
+      });
+    }));
+    new Timer(new Duration(milliseconds:100 + TIME_BIAS), expectAsync(() {
+      transition1.each((d, i, Element e) {
+        checkColor(e, 'rgb(255, 255, 255)');
+      });
+    }));
+    Selection transition2 = scope.select('.delay-500');
+    transition2.transition()
+      ..style('background-color', '#ffffff')
+      ..delay(500);
+    new Timer(new Duration(milliseconds:500 - TIME_BIAS), expectAsync(() {
+      transition2.each((d, i, Element e) {
+        checkColor(e, null);
+      });
+    }));
+    new Timer(new Duration(milliseconds:500 + TIME_BIAS), expectAsync(() {
+      transition2.each((d, i, Element e) {
+        checkColor(e, 'rgb(255, 255, 255)');
+      });
+    }));
+  });
+
+  test('Transition.delayWithCallback delays specific time by callback', () {
+    Selection transition = scope.selectAll('.delay-callback');
+    transition.transition()
+      ..style('background-color', '#ffffff')
+      ..delayWithCallback((d, i, e) => (i + 1) * 100);
+    new Timer(new Duration(milliseconds:100 - TIME_BIAS), expectAsync(() {
+      transition.each((d, i, Element e) {
+        checkColor(e, null);
+      });
+    }));
+    new Timer(new Duration(milliseconds:100 + TIME_BIAS), expectAsync(() {
+      transition.each((d, i, Element e) {
+        if (i > 0) checkColor(e, null);
+        else checkColor(e, 'rgb(255, 255, 255)');
+      });
+    }));
+    new Timer(new Duration(milliseconds:200 + TIME_BIAS), expectAsync(() {
+      transition.each((d, i, Element e) {
+        if (i > 1) checkColor(e, null);
+        else checkColor(e, 'rgb(255, 255, 255)');
+      });
+    }));
+    new Timer(new Duration(milliseconds:300 + TIME_BIAS), expectAsync(() {
+      transition.each((d, i, Element e) {
+        checkColor(e, 'rgb(255, 255, 255)');
+      });
+    }));
+  });
+
+  test('Transition.duration sets the duration of transition', () {
+    Selection transition = scope.select('.duration-100');
+    transition
+      .style('background-color', '#000000');
+    transition.transition()
+      ..style('background-color', '#ffffff')
+      ..duration(100);
+    transition.each((d, i, Element e) {
+      checkColor(e, 'rgb(0, 0, 0)');
+    });
+    new Timer(new Duration(milliseconds:50), expectAsync(() {
+      transition.each((d, i, Element e) {
+        checkColor(e, 'rgb(0, 0, 0)', false);
+        checkColor(e, 'rgb(255, 255, 255)', false);
+      });
+    }));
+    new Timer(new Duration(milliseconds:100 + TIME_BIAS), expectAsync(() {
+      transition.each((d, i, Element e) {
+        checkColor(e, 'rgb(255, 255, 255)');
+      });
+    }));
+  });
+
+  test('Transition.durationWithCallback sets duration by callback', () {
+    Selection transition = scope.selectAll('.duration-callback');
+    transition
+      .style('background-color', '#000000');
+    transition.transition()
+      ..style('background-color', '#ffffff')
+      ..durationWithCallback((d, i, e) => (i + 1) * 100);
+    transition.each((d, i, Element e) {
+      checkColor(e, 'rgb(0, 0, 0)');
+    });
+    new Timer(new Duration(milliseconds:100 - TIME_BIAS), expectAsync(() {
+      transition.each((d, i, Element e) {
+        checkColor(e, 'rgb(0, 0, 0)', false);
+        checkColor(e, 'rgb(255, 255, 255)', false);
+      });
+    }));
+    new Timer(new Duration(milliseconds:100 + TIME_BIAS), expectAsync(() {
+      transition.each((d, i, Element e) {
+        if (i < 1) {
+          checkColor(e, 'rgb(255, 255, 255)');
+        } else {
+          checkColor(e, 'rgb(0, 0, 0)', false);
+          checkColor(e, 'rgb(255, 255, 255)', false);
+        }
+      });
+    }));
+    new Timer(new Duration(milliseconds:200 + TIME_BIAS), expectAsync(() {
+      transition.each((d, i, Element e) {
+        if (i < 2) {
+          checkColor(e, 'rgb(255, 255, 255)');
+        } else {
+          checkColor(e, 'rgb(0, 0, 0)', false);
+          checkColor(e, 'rgb(255, 255, 255)', false);
+        }
+      });
+    }));
+    new Timer(new Duration(milliseconds:300 + TIME_BIAS), expectAsync(() {
+      transition.each((d, i, Element e) {
+        checkColor(e, 'rgb(255, 255, 255)');
+      });
+    }));
+  });
+
+  test('Transition.attr sets the attribute of transition', () {
+    Selection transition = scope.select('.attr-100');
+    transition.attr('height', '0');
+    transition.transition()
+      ..attr('height', '100')
+      ..duration(100);
+    transition.each((d, i, Element e) {
+      checkHeight(e, 0);
+    });
+    new Timer(new Duration(milliseconds:50), expectAsync(() {
+      transition.each((d, i, Element e) {
+        checkHeight(e, 0, false);
+        checkHeight(e, 100, false);
+      });
+    }));
+    new Timer(new Duration(milliseconds:100 + TIME_BIAS), expectAsync(() {
+      transition.each((d, i, Element e) {
+        checkHeight(e, 100);
+      });
+    }));
+  });
+
+  test('Transition.attrWithCallback sets the attribute by callback', () {
+    Selection transition = scope.selectAll('.attr-callback');
+    transition.attr('height', '0');
+    transition.transition()
+      ..attrWithCallback('height', (d, i, e) => (i + 1) * 100)
+      ..duration(100);
+    transition.each((d, i, Element e) {
+      checkHeight(e, 0);
+    });
+    new Timer(new Duration(milliseconds:50), expectAsync(() {
+      transition.each((d, i, Element e) {
+        checkHeight(e, 0, false);
+        checkHeight(e, (i + 1) * 100, false);
+      });
+    }));
+    new Timer(new Duration(milliseconds:100 + TIME_BIAS), expectAsync(() {
+      transition.each((d, i, Element e) {
+        checkHeight(e, (i + 1) * 100);
+      });
+    }));
+  });
+
+  test('Transition.styleWithCallback sets the style by callback', () {
+    Selection transition = scope.selectAll('.style-callback');
+    transition.style('background-color', 'rgb(0, 0, 0)');
+    var colors = ['rgb(255, 0, 0);', 'rgb(0, 255, 0);', 'rgb(0, 0, 255);'];
+    transition.transition()
+      ..styleWithCallback('background-color', (d, i, e) => colors[i])
+      ..duration(100);
+    transition.each((d, i, Element e) {
+      checkColor(e, 'rgb(0, 0, 0)');
+    });
+    new Timer(new Duration(milliseconds:50), expectAsync(() {
+      transition.each((d, i, Element e) {
+        checkColor(e, 'rgb(0, 0, 0)', false);
+        checkColor(e, colors[i], false);
+      });
+    }));
+    new Timer(new Duration(milliseconds:100 + TIME_BIAS), expectAsync(() {
+      transition.each((d, i, Element e) {
+        checkColor(e, colors[i], false);
+      });
+    }));
+  });
+
+  test('Transition.attrTween transitions the value of the attribute with '
+       'the specified name according to the specified tween function', () {
+    Selection transition = scope.selectAll('.attr-tween');
+    transition.attr('height', '0px');
+    transition.transition()
+      ..attrTween('height', (d, i, attr) =>
+          interpolateString(attr, ((i + 1) * 100).toString() + 'px'))
+      ..duration(100);
+    transition.each((d, i, Element e) {
+      checkHeight(e, '0px');
+    });
+    new Timer(new Duration(milliseconds:50), expectAsync(() {
+      transition.each((d, i, Element e) {
+        checkHeight(e, '0px', false);
+        checkHeight(e, '${(i + 1) * 100}.0px', false);
+      });
+    }));
+    new Timer(new Duration(milliseconds:100 + TIME_BIAS), expectAsync(() {
+      transition.each((d, i, Element e) {
+        checkHeight(e, '${(i + 1) * 100}.0px');
+      });
+    }));
+  });
+
+  test('Transition.styleTween transitions the value of the CSS style property '
+       'with the specified name according to the specified tween function', () {
+    Selection transition = scope.selectAll('.style-tween');
+    transition.style('background-color', 'rgb(0, 0, 0)');
+    var colors = ['rgb(255, 0, 0);', 'rgb(0, 255, 0);', 'rgb(0, 0, 255);'];
+    transition.transition()
+      ..styleTween('background-color', (d, i, style) =>
+          interpolateString(style, colors[i]))
+      ..duration(100);
+    transition.each((d, i, Element e) {
+      checkColor(e, 'rgb(0, 0, 0)');
+    });
+    new Timer(new Duration(milliseconds:50), expectAsync(() {
+      transition.each((d, i, Element e) {
+        checkColor(e, 'rgb(0, 0, 0)', false);
+        checkColor(e, colors[i], false);
+      });
+    }));
+    new Timer(new Duration(milliseconds:100 + TIME_BIAS), expectAsync(() {
+      transition.each((d, i, Element e) {
+        checkColor(e, colors[i], false);
+      });
+    }));
+  });
+
+  test('Transition.transition implements chained transition', () {
+    Selection transition = scope.select('.chained-transition');
+    transition.attr('height', '0');
+    Transition t = transition.transition();
+    t..duration(500)
+     ..attr('height', '10000');
+    var t2 = t.transition();
+    t2.attr('height', '1000');
+
+    new Timer(new Duration(milliseconds:200), expectAsync(() {
+      transition.each((d, i, Element e) {
+        var height = num.parse(e.attributes['height']);
+        expect(height > 0, isTrue);
+        expect(height < 7500, isTrue);
+      });
+    }));
+    new Timer(new Duration(milliseconds:500), expectAsync(() {
+      transition.each((d, i, Element e) {
+        var height = num.parse(e.attributes['height']);
+        expect(height > 7500, isTrue);
+      });
+    }));
+
+    new Timer(new Duration(milliseconds:1000 + TIME_BIAS), expectAsync(() {
+      transition.each((d, i, Element e) {
+        var height = num.parse(e.attributes['height']);
+        expect(height == 1000, isTrue);
+      });
+    }));
+  });
+
+  test('Transition.select selects the first descendant element '
+       'that matches the specified selector string', () {
+    Selection transition = scope.select('.transition-select');
+    transition.select('.select-item')
+      ..attr('height', '100');
+    transition.select('.select-item').each((d, i, Element e) {
+      var height = num.parse(e.attributes['height']);
+      expect(height, equals(100));
+    });
+  });
+
+  test('Transition.selectAll selects all descendant elements '
+       'that match the specified selector string', () {
+    Selection transition = scope.select('.transition-select-all');
+    transition.selectAll('.select-item')
+      ..attr('height', '100');
+    transition.selectAll('.select-item').each((d, i, Element e) {
+      var height = num.parse(e.attributes['height']);
+      expect(height, equals(100));
+    });
+  });
+}