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packages/charted/test.disabled/selection/selection_test.dart

Index: packages/charted/test.disabled/selection/selection_test.dart
diff --git a/packages/charted/test.disabled/selection/selection_test.dart b/packages/charted/test.disabled/selection/selection_test.dart
new file mode 100644
index 0000000000000000000000000000000000000000..af2f540ab95fd5bfcb12a5775213a9069ab90a60
--- /dev/null
+++ b/packages/charted/test.disabled/selection/selection_test.dart
@@ -0,0 +1,321 @@
+/*
+ * 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.selection;
+
+import 'dart:html' show document, Element;
+import 'package:unittest/unittest.dart';
+import 'package:charted/selection/selection.dart';
+
+part 'selection_scope_test.dart';
+
+selectionTests() {
+  testSelectionScope();
+  testSelections();
+}
+
+testSelections() {
+  String markup = '<div class="charted-scope-root">'
+            '<div class="charted-scope-inner">'
+              '<div class="charted-scope-leaf"></div>'
+              '<div class="charted-scope-leaf"></div>'
+            '</div>'
+          '</div>';
+
+  Element root;
+  SelectionScope scope;
+  Selection empty, single, multiple;
+
+  setup() {
+    root = new Element.html(markup);
+    document.documentElement.append(root);
+    scope = new SelectionScope.selector('.charted-scope-root');
+
+    empty = scope.selectAll('.node');
+    single = scope.select('.charted-scope-inner');
+    multiple = scope.selectAll('.charted-scope-leaf');
+  }
+
+  teardown() {
+    root.remove();
+  }
+
+  test('toCallback() creates a callback to return the given value', () {
+    num value = 100;
+    SelectionCallback<num> cb = toCallback(value);
+    expect(cb(null, null, null), equals(value));
+  });
+
+  test('toValueAccessor() creates an accessor to return the given value', () {
+    num value = 100;
+    SelectionValueAccessor<num> cb = toValueAccessor(value);
+    expect(cb(null, null), equals(value));
+  });
+
+  group('Selection created from scope', () {
+    setUp(setup);
+    tearDown(teardown);
+
+    test('has isEmpty=true when the selection is empty', () {
+      expect(empty.isEmpty, equals(true));
+      expect(single.isEmpty, equals(false));
+      expect(multiple.isEmpty, equals(false));
+    });
+
+    test('has length set to number of non-null elements', () {
+      expect(empty.length, equals(0));
+      expect(single.length, equals(1));
+      expect(multiple.length, equals(2));
+    });
+
+    test('has first=null when there selection is empty', () {
+      expect(empty.first, equals(null));
+    });
+
+    test('has first set to first non-null element in selection', () {
+      expect(single.first.className, equals('charted-scope-inner'));
+      expect(multiple.first.className, equals('charted-scope-leaf'));
+    });
+
+    test('has exactly one group', () {
+      expect(empty.groups.length, equals(1));
+      expect(single.groups.length, equals(1));
+      expect(multiple.groups.length, equals(1));
+    });
+  });
+
+  group('Selection created from another selection', () {
+    Selection selection1, selection2, selection3;
+
+    setUp(() {
+      setup();
+      selection1 = empty.selectAll('.child-nodes');
+      selection2 = single.selectAll('.child-nodes');
+      selection3 = multiple.selectAll('.child-nodes');
+    });
+    tearDown(teardown);
+
+    test('has length set to number of non-null elements', () {
+      expect(selection1.length, equals(0));
+      expect(selection2.length, equals(0));
+      expect(selection3.length, equals(0));
+    });
+
+    test('has first=null when there selection is empty', () {
+      expect(selection1.first, equals(null));
+      expect(selection2.first, equals(null));
+      expect(selection3.first, equals(null));
+    });
+
+    test('has same number of groups as number of non-null elements '
+        'in source selection', () {
+      expect(selection1.groups.length, equals(empty.length));
+      expect(selection2.groups.length, equals(single.length));
+      expect(selection3.groups.length, equals(multiple.length));
+    });
+  });
+
+  group('Selection', () {
+    setUp(setup);
+    tearDown(teardown);
+
+    test('attr sets attribute to the specified value on selected', () {
+      multiple.each((d, i, e) {
+        expect(e.attributes['height'], isNull);
+      });
+      multiple.attr('height', '10');
+      multiple.each((d, i, e) {
+        expect(e.attributes['height'], equals('10'));
+      });
+    });
+
+    test('attrWithCallBack sets attribute to the specified value '
+         'on selected elements with callback', () {
+      multiple.each((d, i, e) {
+        expect(e.attributes['height'], isNull);
+      });
+      multiple.attrWithCallback('height', (d, i, e) => '${i * 10}');
+      multiple.each((d, i, e) {
+        expect(e.attributes['height'], equals('${i * 10}'));
+      });
+    });
+
+
+    test('classed sets class to the specified value on selected', () {
+      multiple.classed('new-class');
+      multiple.each((d, i, e) {
+        expect(e.attributes['class'], equals('charted-scope-leaf new-class'));
+      });
+      multiple.classed('new-class', false);
+      multiple.each((d, i, e) {
+        expect(e.attributes['class'], equals('charted-scope-leaf'));
+      });
+    });
+
+    test('classedWithCallBack sets class to the specified value '
+         'on selected elements with callback', () {
+      multiple.classedWithCallback('new-class', (d, i, e) => i % 2 > 0);
+      multiple.each((d, i, e) {
+        if (i % 2 > 0) {
+          expect(e.attributes['class'], equals('charted-scope-leaf new-class'));
+        } else {
+          expect(e.attributes['class'], equals('charted-scope-leaf'));
+        }
+      });
+      multiple.classedWithCallback('new-class', (d, i, e) => i % 2 == 0);
+      multiple.each((d, i, e) {
+        if (i % 2 == 0) {
+          expect(e.attributes['class'], equals('charted-scope-leaf new-class'));
+        } else {
+          expect(e.attributes['class'], equals('charted-scope-leaf'));
+        }
+      });
+    });
+
+    test('style sets CSS style to specified value on selected', () {
+      multiple.each((d, i, e) {
+        expect(e.attributes['style'], isNull);
+      });
+      multiple.style('height', '10px');
+      multiple.each((d, i, e) {
+        expect(e.attributes['style'], equals('height: 10px;'));
+      });
+    });
+
+    test('attrWithCallBack sets CSS style to the specified value '
+         'on selected elements with callback', () {
+      multiple.each((d, i, e) {
+        expect(e.attributes['style'], isNull);
+      });
+      multiple.styleWithCallback('height', (d, i, e) => '${i * 10}px');
+      multiple.each((d, i, e) {
+        expect(e.attributes['style'], equals('height: ${i * 10}px;'));
+      });
+    });
+
+    test('text sets text to specified value on selected', () {
+      multiple.each((d, i, e) {
+        expect(e.text, '');
+      });
+      multiple.text('some text');
+      multiple.each((d, i, e) {
+        expect(e.text, equals('some text'));
+      });
+    });
+
+    test('textWithCallBack sets text to the specified value '
+         'on selected elements with callback', () {
+      multiple.each((d, i, e) {
+        expect(e.text, '');
+      });
+      multiple.textWithCallback((d, i, e) => 'text-${i}');
+      multiple.each((d, i, e) {
+        expect(e.text, equals('text-${i}'));
+      });
+    });
+
+    test('html sets inner html to specified value on selected', () {
+      multiple.each((d, i, e) {
+        expect(e.innerHtml, '');
+      });
+      multiple.text('some html');
+      multiple.each((d, i, e) {
+        expect(e.innerHtml, equals('some html'));
+      });
+    });
+
+    test('htmlWithCallBack sets inner html to the specified value '
+         'on selected elements with callback', () {
+      multiple.each((d, i, e) {
+        expect(e.innerHtml, '');
+      });
+      multiple.htmlWithCallback((d, i, e) => 'html-${i}');
+      multiple.each((d, i, e) {
+        expect(e.innerHtml, equals('html-${i}'));
+      });
+    });
+
+    test('append appends new child elements to selection', () {
+      expect(multiple.selectAll('.appended').length, equals(0));
+      multiple.append('div')..classed('appended');
+      expect(multiple.selectAll('.appended').length, equals(multiple.length));
+      multiple.append('div')..classed('appended');
+      expect(multiple.selectAll('.appended').length,
+          equals(multiple.length * 2));
+    });
+
+    test('appendWithCallback appends new child elements '
+         'to selection with callback', () {
+      for (var i = 0; i < multiple.length; i++) {
+        expect(multiple.selectAll('.appended-${i}').length, equals(0));
+      }
+      multiple.appendWithCallback((d, i, e) {
+        Element newItem = new Element.tag('div')
+                        ..className = 'appended-${i}';
+        return newItem;
+      });
+      for (var i = 0; i < multiple.length; i++) {
+        expect(multiple.selectAll('.appended-${i}').length, equals(1));
+      }
+    });
+
+    test('insert inserts new child elements to selection', () {
+      expect(multiple.selectAll('.appended').length, equals(0));
+      multiple.insert('div', before: '.appended')..classed('appended');
+      expect(multiple.selectAll('.appended').length, equals(multiple.length));
+      multiple.insert('div', before: '.appended')..classed('appended');
+      expect(multiple.selectAll('.appended').length,
+          equals(multiple.length * 2));
+    });
+
+    test('insertWithCallback inserts new child elements '
+         'to selection with callback', () {
+      for (var i = 0; i < multiple.length; i++) {
+        expect(multiple.selectAll('.appended-${i}').length, equals(0));
+      }
+      multiple.insertWithCallback((d, i, e) {
+        Element newItem = new Element.tag('div')
+                        ..className = 'appended-${i}';
+        return newItem;
+      }, beforeFn: (d, i, e) => multiple.selectAll('.appended-${i}').first);
+      for (var i = 0; i < multiple.length; i++) {
+        expect(multiple.selectAll('.appended-${i}').length, equals(1));
+      }
+    });
+
+    test('remove removes selected elements', () {
+      Selection remove = scope.selectAll('.charted-scope-leaf');
+      expect(remove.length, equals(2));
+      remove.remove();
+      remove = scope.selectAll('.charted-scope-leaf');
+      expect(remove.length, equals(0));
+    });
+
+    test('each visits each selected element in order', () {
+      multiple.attrWithCallback('height', (d, i, e) => i * 10);
+      int count = 0;
+      multiple.each((d, i, e) {
+        expect(e.attributes['height'], equals('${i * 10}'));
+        count++;
+      });
+      expect(count, equals(multiple.length));
+    });
+
+    test('data binds data to selected elements', () {
+      List dataList = [1, 2];
+      multiple.data(dataList);
+      multiple.each((d, i, e) => expect(d, dataList[i]));
+    });
+
+    test('dataWithCallback binds data to elements with callback', () {
+      List dataList = [1, 2];
+      multiple.dataWithCallback((d, i, e) => dataList);
+      multiple.each((d, i, e) => expect(d, dataList[i]));
+    });
+  });
+}