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

Index: packages/charted/test.disabled/charts/transformers/filter_transformer_test.dart
diff --git a/packages/charted/test.disabled/charts/transformers/filter_transformer_test.dart b/packages/charted/test.disabled/charts/transformers/filter_transformer_test.dart
new file mode 100644
index 0000000000000000000000000000000000000000..4b1703014538be58272de3c7329d82d7d5517e04
--- /dev/null
+++ b/packages/charted/test.disabled/charts/transformers/filter_transformer_test.dart
@@ -0,0 +1,100 @@
+library charted.test.filtertransformer;
+
+import 'package:charted/charts/charts.dart';
+import 'package:unittest/unittest.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('Filter out rows whose stats3 is below 4000', () {
+    FilterDefinition fd = new FilterDefinition(5, (value) => (value >= 4000));
+
+    FilterTransformer transformer = new FilterTransformer([fd]);
+    ChartData result = transformer.transform(inputData);
+    // Expected data:
+    // ['Asia', 'Japan', 'Kyoto', 5.10,  66,  4000],
+    // ['Europe', 'France', 'Nice', 2.50,  29,  6000],
+    // ['Europe', 'Germany', 'Berlin', 10.99,  999,  10000],
+    // ['America', 'USA', 'NY', 3.50,  17,  4000],
+    // ['America', 'Brazil', 'Brasilia', 1.50,  27,  6000],
+
+    // ['Asia', 'Japan', 'Kyoto', 5.10,  66,  4000]
+    expect(result.rows.elementAt(0).elementAt(0), equals('Asia'));
+    expect(result.rows.elementAt(0).elementAt(1), equals('Japan'));
+    expect(result.rows.elementAt(0).elementAt(2), equals('Kyoto'));
+    expect(result.rows.elementAt(0).elementAt(3), equals(5.10));
+    expect(result.rows.elementAt(0).elementAt(4), equals(66));
+    expect(result.rows.elementAt(0).elementAt(5), equals(4000));
+
+    // ['Europe', 'Germany', 'Berlin', 10.99,  999,  10000]
+    expect(result.rows.elementAt(2).elementAt(0), equals('Europe'));
+    expect(result.rows.elementAt(2).elementAt(1), equals('Germany'));
+    expect(result.rows.elementAt(2).elementAt(2), equals('Berlin'));
+    expect(result.rows.elementAt(2).elementAt(3), equals(10.99));
+    expect(result.rows.elementAt(2).elementAt(4), equals(999));
+    expect(result.rows.elementAt(2).elementAt(5), equals(10000));
+
+    // ['America', 'Brazil', 'Brasilia', 1.50,  27,  6000],
+    expect(result.rows.elementAt(4).elementAt(0), equals('America'));
+    expect(result.rows.elementAt(4).elementAt(1), equals('Brazil'));
+    expect(result.rows.elementAt(4).elementAt(2), equals('Brasilia'));
+    expect(result.rows.elementAt(4).elementAt(3), equals(1.5));
+    expect(result.rows.elementAt(4).elementAt(4), equals(27));
+    expect(result.rows.elementAt(4).elementAt(5), equals(6000));
+  });
+
+  test('Filter out rows whose stats3 is below 4000 and is not in America', () {
+    FilterDefinition fd1 = new FilterDefinition(5, (value) => (value >= 4000));
+    FilterDefinition fd2 = new FilterDefinition(0,
+        (value) => (value == 'America'));
+
+    FilterTransformer transformer = new FilterTransformer([fd1, fd2]);
+    ChartData result = transformer.transform(inputData);
+    // Expected data:
+    // ['America', 'USA', 'NY', 3.50,  17,  4000],
+    // ['America', 'Brazil', 'Brasilia', 1.50,  27,  6000],
+
+    // ['America', 'USA', 'NY', 3.50,  17,  4000],
+    expect(result.rows.elementAt(0).elementAt(0), equals('America'));
+    expect(result.rows.elementAt(0).elementAt(1), equals('USA'));
+    expect(result.rows.elementAt(0).elementAt(2), equals('NY'));
+    expect(result.rows.elementAt(0).elementAt(3), equals(3.5));
+    expect(result.rows.elementAt(0).elementAt(4), equals(17));
+    expect(result.rows.elementAt(0).elementAt(5), equals(4000));
+
+    // ['America', 'Brazil', 'Brasilia', 1.50,  27,  6000],
+    expect(result.rows.elementAt(1).elementAt(0), equals('America'));
+    expect(result.rows.elementAt(1).elementAt(1), equals('Brazil'));
+    expect(result.rows.elementAt(1).elementAt(2), equals('Brasilia'));
+    expect(result.rows.elementAt(1).elementAt(3), equals(1.5));
+    expect(result.rows.elementAt(1).elementAt(4), equals(27));
+    expect(result.rows.elementAt(1).elementAt(5), equals(6000));
+  });
+}