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packages/charted/test.disabled/charts/transformers/aggregation_transformer_test.dart

Index: packages/charted/test.disabled/charts/transformers/aggregation_transformer_test.dart
diff --git a/packages/charted/test.disabled/charts/transformers/aggregation_transformer_test.dart b/packages/charted/test.disabled/charts/transformers/aggregation_transformer_test.dart
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index 0000000000000000000000000000000000000000..7616c196cc79de674533f3164938d35a2dbc4304
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+++ b/packages/charted/test.disabled/charts/transformers/aggregation_transformer_test.dart
@@ -0,0 +1,381 @@
+/*
+ * 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.aggregationtransformer;
+
+import 'package:charted/charts/charts.dart';
+import 'package:charted/core/utils.dart';
+import 'package:unittest/unittest.dart';
+import 'package:observe/observe.dart';
+
+main() {
+  List COLUMNS = [
+      new ChartColumnSpec(label:'Continent', type:ChartColumnSpec.TYPE_STRING),
+      new ChartColumnSpec(label:'Country', type:ChartColumnSpec.TYPE_STRING),
+      new ChartColumnSpec(label:'City', type:ChartColumnSpec.TYPE_STRING),
+      new ChartColumnSpec(label:'Stats1'),
+      new ChartColumnSpec(label:'Stats2'),
+      new ChartColumnSpec(label:'Stats3')
+    ];
+
+  const List DATA = const [
+      const['America', 'USA', 'LA', 4.51,  7,  1000],
+      const['America', 'USA', 'SF', 9.50,  50,  2000],
+      const['Asia', 'Japan', 'Tokyo', 1.50,  99,  2000],
+      const['Asia', 'Japan', 'Kyoto', 5.10,  66,  4000],
+      const['Asia', 'Taiwan', 'Taipei', 3.50,  127,  1337],
+      const['Asia', 'Japan', 'Osaka', 4.50,  19,  2000],
+      const['Asia', 'Taiwan', 'Tainan', 1.50,  10,  100],
+      const['Europe', 'France', 'Nice', 2.50,  29,  6000],
+      const['Europe', 'France', 'Paris', 6.50,  129,  3000],
+      const['Europe', 'Germany', 'Berlin', 10.99,  999,  10000],
+      const['Europe', 'England', 'London', 2.50,  10,  3000],
+      const['America', 'USA', 'NY', 3.50,  17,  4000],
+      const['America', 'Brazil', 'Brasilia', 1.50,  27,  6000],
+      const['America', 'Argentina', 'Buenos Aires', 5.50,  37,  2000],
+      const['America', 'Brazil', 'Rio de Janeiro', 2.50,  52,  3000],
+    ];
+
+  ChartData inputData = new ChartData(COLUMNS, DATA);
+
+  test('Sum aggregation all dimension collapsed', () {
+    AggregationTransformer transformer = new AggregationTransformer([0, 1, 2],
+        [3, 4, 5]);
+    ChartData result = transformer.transform(inputData);
+    // Expected data:
+    // [America, , , 27.0, 190.0, 18000.0]
+    // [Asia, , , 16.1, 321.0, 9437.0]
+    // [Europe, , , 22.49, 1167.0, 22000.0]
+
+    // America
+    expect(result.rows.elementAt(0).elementAt(3), closeTo(27.01, EPSILON));
+    expect(result.rows.elementAt(0).elementAt(4), equals(190));
+    expect(result.rows.elementAt(0).elementAt(5), equals(18000));
+
+    // Asia
+    expect(result.rows.elementAt(1).elementAt(3), closeTo(16.1, EPSILON));
+    expect(result.rows.elementAt(1).elementAt(4), equals(321));
+    expect(result.rows.elementAt(1).elementAt(5), equals(9437));
+
+    // Europe
+    expect(result.rows.elementAt(2).elementAt(3), closeTo(22.49, EPSILON));
+    expect(result.rows.elementAt(2).elementAt(4), equals(1167));
+    expect(result.rows.elementAt(2).elementAt(5), equals(22000));
+  });
+
+  test('Sum aggregation expanding America in continent dimension', () {
+    AggregationTransformer transformer = new AggregationTransformer([0, 1, 2],
+        [3, 4, 5]);
+    transformer.expand(['America']);
+    ChartData result = transformer.transform(inputData);
+
+    // Expected data:
+    // [America, Argentina, , 5.5, 37.0, 2000.0]
+    // [America, Brazil, , 4.0, 79.0, 9000.0]
+    // [America, USA, , 17.51, 74.0, 7000.0]
+    // [Asia, , , 16.1, 321.0, 9437.0]
+    // [Europe, , , 22.49, 1167.0, 22000.0]
+
+    // America
+    expect(result.rows.elementAt(0).elementAt(3), closeTo(5.5, EPSILON));
+    expect(result.rows.elementAt(0).elementAt(4), equals(37));
+    expect(result.rows.elementAt(0).elementAt(5), equals(2000));
+    expect(result.rows.elementAt(1).elementAt(3), closeTo(4, EPSILON));
+    expect(result.rows.elementAt(1).elementAt(4), equals(79));
+    expect(result.rows.elementAt(1).elementAt(5), equals(9000));
+    expect(result.rows.elementAt(2).elementAt(3), closeTo(17.51, EPSILON));
+    expect(result.rows.elementAt(2).elementAt(4), equals(74));
+    expect(result.rows.elementAt(2).elementAt(5), equals(7000));
+
+    // Asia
+    expect(result.rows.elementAt(3).elementAt(3), closeTo(16.1, EPSILON));
+    expect(result.rows.elementAt(3).elementAt(4), equals(321));
+    expect(result.rows.elementAt(3).elementAt(5), equals(9437));
+
+    // Europe
+    expect(result.rows.elementAt(4).elementAt(3), closeTo(22.49, EPSILON));
+    expect(result.rows.elementAt(4).elementAt(4), equals(1167));
+    expect(result.rows.elementAt(4).elementAt(5), equals(22000));
+  });
+
+  test('Sum aggregation expanding [America, Brazil] in continent/country '+
+      'dimension', () {
+    AggregationTransformer transformer = new AggregationTransformer([0, 1, 2],
+        [3, 4, 5]);
+    transformer.expand(['America']);
+    transformer.expand(['America', 'Brazil']);
+    ChartData result = transformer.transform(inputData);
+
+    // Expected data:
+    // [America, Argentina, , 5.5, 37.0, 2000.0]
+    // [America, Brazil, 'Brasilia, 1.50,  27,  6000]
+    // [America, Brazil, 'Rio de Janeiro, 2.50,  52,  3000]
+    // [America, USA, , 17.51, 74.0, 7000.0]
+    // [Asia, , , 16.1, 321.0, 9437.0]
+    // [Europe, , , 22.49, 1167.0, 22000.0]
+
+    // America Argentina
+    expect(result.rows.elementAt(0).elementAt(3), closeTo(5.5, EPSILON));
+    expect(result.rows.elementAt(0).elementAt(4), equals(37));
+    expect(result.rows.elementAt(0).elementAt(5), equals(2000));
+
+    // America Brazil Brasilia
+    expect(result.rows.elementAt(1).elementAt(3), closeTo(1.5, EPSILON));
+    expect(result.rows.elementAt(1).elementAt(4), equals(27));
+    expect(result.rows.elementAt(1).elementAt(5), equals(6000));
+
+    // America Brazil Rio de Janeiro
+    expect(result.rows.elementAt(2).elementAt(3), closeTo(2.5, EPSILON));
+    expect(result.rows.elementAt(2).elementAt(4), equals(52));
+    expect(result.rows.elementAt(2).elementAt(5), equals(3000));
+
+    // America USA
+    expect(result.rows.elementAt(3).elementAt(3), closeTo(17.51, EPSILON));
+    expect(result.rows.elementAt(3).elementAt(4), equals(74));
+    expect(result.rows.elementAt(3).elementAt(5), equals(7000));
+
+    // Asia
+    expect(result.rows.elementAt(4).elementAt(3), closeTo(16.1, EPSILON));
+    expect(result.rows.elementAt(4).elementAt(4), equals(321));
+    expect(result.rows.elementAt(4).elementAt(5), equals(9437));
+
+    // Europe
+    expect(result.rows.elementAt(5).elementAt(3), closeTo(22.49, EPSILON));
+    expect(result.rows.elementAt(5).elementAt(4), equals(1167));
+    expect(result.rows.elementAt(5).elementAt(5), equals(22000));
+  });
+
+  test('Collapsing parent of expanded dimension should collapse dimension', () {
+    AggregationTransformer transformer = new AggregationTransformer([0, 1, 2],
+        [3, 4, 5]);
+    transformer.expand(['America']);
+    transformer.expand(['America', 'Brazil']);
+    transformer.collapse(['America']);
+    ChartData result = transformer.transform(inputData);
+
+    // Expected data:
+    // [America, , , 27.0, 190.0, 18000.0]
+    // [Asia, , , 16.1, 321.0, 9437.0]  -- not tested in this case
+    // [Europe, , , 22.49, 1167.0, 22000.0] -- not tested in this case
+
+    // America
+    expect(result.rows.elementAt(0).elementAt(3), closeTo(27.01, EPSILON));
+    expect(result.rows.elementAt(0).elementAt(4), equals(190));
+    expect(result.rows.elementAt(0).elementAt(5), equals(18000));
+  });
+
+  test('Expanding the lowest dimension should be ignored', () {
+    AggregationTransformer transformer = new AggregationTransformer([0, 1, 2],
+        [3, 4, 5]);
+    transformer.expand(['America']);
+    transformer.expand(['America', 'Brazil']);
+    transformer.expand(['America', 'Brazil', 'Brasilia']);
+    ChartData result = transformer.transform(inputData);
+
+    // Expected data:
+    // [America, Argentina, , 5.5, 37.0, 2000.0]
+    // [America, Brazil, 'Brasilia, 1.50,  27,  6000]
+    // [America, Brazil, 'Rio de Janeiro, 2.50,  52,  3000]
+    // [America, USA, , 17.51, 74.0, 7000.0]
+    // [Asia, , , 16.1, 321.0, 9437.0] -- not tested in this case
+    // [Europe, , , 22.49, 1167.0, 22000.0] -- not tested in this case
+
+    // America Argentina
+    expect(result.rows.elementAt(0).elementAt(3), closeTo(5.5, EPSILON));
+    expect(result.rows.elementAt(0).elementAt(4), equals(37));
+    expect(result.rows.elementAt(0).elementAt(5), equals(2000));
+
+    // America Brazil Brasilia
+    expect(result.rows.elementAt(1).elementAt(3), closeTo(1.5, EPSILON));
+    expect(result.rows.elementAt(1).elementAt(4), equals(27));
+    expect(result.rows.elementAt(1).elementAt(5), equals(6000));
+
+    // America Brazil Rio de Janeiro
+    expect(result.rows.elementAt(2).elementAt(3), closeTo(2.5, EPSILON));
+    expect(result.rows.elementAt(2).elementAt(4), equals(52));
+    expect(result.rows.elementAt(2).elementAt(5), equals(3000));
+
+    // America USA
+    expect(result.rows.elementAt(3).elementAt(3), closeTo(17.51, EPSILON));
+    expect(result.rows.elementAt(3).elementAt(4), equals(74));
+    expect(result.rows.elementAt(3).elementAt(5), equals(7000));
+  });
+
+  test('Expanding the multiple dimension at different level', () {
+    AggregationTransformer transformer = new AggregationTransformer([0, 1, 2],
+        [3, 4, 5]);
+    transformer.expand(['Asia']);
+    transformer.expand(['Asia', 'Taiwan']);
+    transformer.expand(['Asia', 'Japan', 'Osaka']);
+    transformer.expand(['Europe']);
+    transformer.collapse(['Asia', 'Japan']);
+    ChartData result = transformer.transform(inputData);
+
+
+    // Expected data:
+    // [America, , , 27.0, 190.0, 18000.0]
+    // [Asia, Japan, , 10.10, 184.0, 8000.0]
+    // [Asia, Taiwan, Tainan, 1.50, 10.0, 100.0]
+    // [Asia, Taiwan, Taipei, 3.50, 127.0, 1337.0]
+    // [Europe, England, , 2.50, 10.0, 3000.0]
+    // [Europe, France, , 9.00, 158.0, 9000.0]
+    // [Europe, Germany, , 10.99, 999.0, 10000.0]
+
+    // America
+    expect(result.rows.elementAt(0).elementAt(3), closeTo(27.01, EPSILON));
+    expect(result.rows.elementAt(0).elementAt(4), equals(190));
+    expect(result.rows.elementAt(0).elementAt(5), equals(18000));
+
+    // Asia Japan
+    expect(result.rows.elementAt(1).elementAt(3), closeTo(11.1, EPSILON));
+    expect(result.rows.elementAt(1).elementAt(4), equals(184));
+    expect(result.rows.elementAt(1).elementAt(5), equals(8000));
+
+    // Asia Taiwan Tainan
+    expect(result.rows.elementAt(2).elementAt(3), closeTo(1.5, EPSILON));
+    expect(result.rows.elementAt(2).elementAt(4), equals(10));
+    expect(result.rows.elementAt(2).elementAt(5), equals(100));
+
+    // Asia Taiwan Taipei
+    expect(result.rows.elementAt(3).elementAt(3), closeTo(3.5, EPSILON));
+    expect(result.rows.elementAt(3).elementAt(4), equals(127));
+    expect(result.rows.elementAt(3).elementAt(5), equals(1337));
+
+    // Europe England
+    expect(result.rows.elementAt(4).elementAt(3), closeTo(2.5, EPSILON));
+    expect(result.rows.elementAt(4).elementAt(4), equals(10));
+    expect(result.rows.elementAt(4).elementAt(5), equals(3000));
+
+    // Europe France
+    expect(result.rows.elementAt(5).elementAt(3), closeTo(9, EPSILON));
+    expect(result.rows.elementAt(5).elementAt(4), equals(158));
+    expect(result.rows.elementAt(5).elementAt(5), equals(9000));
+
+    // Europe Germany
+    expect(result.rows.elementAt(6).elementAt(3), closeTo(10.99, EPSILON));
+    expect(result.rows.elementAt(6).elementAt(4), equals(999));
+    expect(result.rows.elementAt(6).elementAt(5), equals(10000));
+  });
+
+  test('Expanding the multiple dimension at different level', () {
+    AggregationTransformer transformer = new AggregationTransformer([0, 1, 2],
+        [3, 4, 5]);
+    transformer.expand(['Asia']);
+    transformer.expand(['Asia', 'Taiwan']);
+    transformer.expand(['Asia', 'Japan', 'Osaka']);
+    transformer.expand(['Europe']);
+    transformer.collapse(['Asia', 'Japan']);
+
+    ChartData result = transformer.transform(inputData);
+
+
+    // Expected data:
+    // [America, , , 27.0, 190.0, 18000.0]
+    // [Asia, Japan, , 10.10, 184.0, 8000.0]
+    // [Asia, Taiwan, Tainan, 1.50, 10.0, 100.0]
+    // [Asia, Taiwan, Taipei, 3.50, 127.0, 1337.0]
+    // [Europe, England, , 2.50, 10.0, 3000.0]
+    // [Europe, France, , 9.00, 158.0, 9000.0]
+    // [Europe, Germany, , 10.99, 999.0, 10000.0]
+
+    transformer.expandAll();
+
+    // America
+    expect(result.rows.elementAt(0).elementAt(3), closeTo(27.01, EPSILON));
+    expect(result.rows.elementAt(0).elementAt(4), equals(190));
+    expect(result.rows.elementAt(0).elementAt(5), equals(18000));
+
+    // Asia Japan
+    expect(result.rows.elementAt(1).elementAt(3), closeTo(11.1, EPSILON));
+    expect(result.rows.elementAt(1).elementAt(4), equals(184));
+    expect(result.rows.elementAt(1).elementAt(5), equals(8000));
+
+    // Asia Taiwan Tainan
+    expect(result.rows.elementAt(2).elementAt(3), closeTo(1.5, EPSILON));
+    expect(result.rows.elementAt(2).elementAt(4), equals(10));
+    expect(result.rows.elementAt(2).elementAt(5), equals(100));
+
+    // Asia Taiwan Taipei
+    expect(result.rows.elementAt(3).elementAt(3), closeTo(3.5, EPSILON));
+    expect(result.rows.elementAt(3).elementAt(4), equals(127));
+    expect(result.rows.elementAt(3).elementAt(5), equals(1337));
+
+    // Europe England
+    expect(result.rows.elementAt(4).elementAt(3), closeTo(2.5, EPSILON));
+    expect(result.rows.elementAt(4).elementAt(4), equals(10));
+    expect(result.rows.elementAt(4).elementAt(5), equals(3000));
+
+    // Europe France
+    expect(result.rows.elementAt(5).elementAt(3), closeTo(9, EPSILON));
+    expect(result.rows.elementAt(5).elementAt(4), equals(158));
+    expect(result.rows.elementAt(5).elementAt(5), equals(9000));
+
+    // Europe Germany
+    expect(result.rows.elementAt(6).elementAt(3), closeTo(10.99, EPSILON));
+    expect(result.rows.elementAt(6).elementAt(4), equals(999));
+    expect(result.rows.elementAt(6).elementAt(5), equals(10000));
+  });
+
+  test('Grouping by country-continent-city with less fact columns', () {
+    AggregationTransformer transformer = new AggregationTransformer([1, 2, 0],
+        [5, 3]);
+
+    ChartData result = transformer.transform(inputData);
+
+    // Expected data:
+    // [Argentina, , , 2000.0, 5.50]
+    // [Brazil, , , 9000.0, 4.00]
+    // [England, , , 3000.0, 2.50]
+    // [France, , , 9000.0, 9.00]
+    // more entries not listed/tested..
+    // Argentian
+    expect(result.rows.elementAt(0).elementAt(3), equals(2000));
+    expect(result.rows.elementAt(0).elementAt(4), closeTo(5.5, EPSILON));
+
+    // Brazil
+    expect(result.rows.elementAt(1).elementAt(3), equals(9000));
+    expect(result.rows.elementAt(1).elementAt(4), closeTo(4, EPSILON));
+
+    // England
+    expect(result.rows.elementAt(2).elementAt(3), equals(3000));
+    expect(result.rows.elementAt(2).elementAt(4), closeTo(2.5, EPSILON));
+
+    // France
+    expect(result.rows.elementAt(3).elementAt(3), equals(9000));
+    expect(result.rows.elementAt(3).elementAt(4), closeTo(9, EPSILON));
+  });
+
+
+  test('Modifying data row when it is an ObeservableList should cause ' +
+      'transform to be called', () {
+    ObservableList observableRows = new ObservableList.from(DATA);
+    ChartData observableData = new ChartData(COLUMNS, observableRows);
+    AggregationTransformer aggrTransformer = new AggregationTransformer(
+        [1, 2, 0], [5, 3]);
+
+    ChartData result = aggrTransformer.transform(observableData);
+    // Result at this point:
+    // [Argentina, , , 2000.0, 5.50]
+    // [Brazil, , , 9000.0, 4.00]
+    // [England, , , 3000.0, 2.50]
+    // [France, , , 9000.0, 9.00]
+    // ...
+
+    // Remove Brazil, Rio de Janeiro from the original data, causing aggregation
+    // of stats1 for Brazil to drop from 4 to 1.5 and stats3 from 9000 to 6000.
+    observableRows.remove(observableRows.last);
+    observableRows.deliverListChanges();
+    (observableData as Observable).deliverChanges();
+
+    // [Argentina, , , 2000.0, 5.50]
+    // [Brazil, , , 6000.0, 2.50]
+    expect(result.rows.elementAt(0).elementAt(3), equals(2000));
+    expect(result.rows.elementAt(0).elementAt(4), closeTo(5.5, EPSILON));
+    expect(result.rows.elementAt(1).elementAt(3), equals(6000));
+    expect(result.rows.elementAt(1).elementAt(4), closeTo(1.5, EPSILON));
+  });
+}