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Add flutter_web samples (#75)
This commit is contained in:
Kevin Moore
committed by
Andrew Brogdon
Andrew Brogdon
parent
42f2dce01b
commit
3fe927cb29
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// Copyright 2018 the Charts project authors. Please see the AUTHORS file
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// for details.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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import 'dart:math';
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import 'package:charts_common/src/chart/cartesian/axis/axis.dart';
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import 'package:charts_common/src/chart/cartesian/cartesian_renderer.dart';
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import 'package:charts_common/src/chart/common/chart_canvas.dart';
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import 'package:charts_common/src/chart/common/datum_details.dart';
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import 'package:charts_common/src/chart/common/processed_series.dart';
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import 'package:charts_common/src/chart/common/series_datum.dart';
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import 'package:charts_common/src/common/symbol_renderer.dart';
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import 'package:mockito/mockito.dart';
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import 'package:test/test.dart';
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/// For testing viewport start / end.
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class FakeCartesianRenderer extends BaseCartesianRenderer {
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@override
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List<DatumDetails> getNearestDatumDetailPerSeries(Point<double> chartPoint,
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bool byDomain, Rectangle<int> boundsOverride) =>
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null;
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@override
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void paint(ChartCanvas canvas, double animationPercent) {}
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@override
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void update(List<ImmutableSeries> seriesList, bool isAnimating) {}
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@override
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SymbolRenderer get symbolRenderer => null;
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DatumDetails addPositionToDetailsForSeriesDatum(
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DatumDetails details, SeriesDatum seriesDatum) {
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return details;
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}
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}
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class MockAxis extends Mock implements Axis {}
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void main() {
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BaseCartesianRenderer renderer;
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setUp(() {
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renderer = new FakeCartesianRenderer();
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});
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group('find viewport start', () {
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test('several domains are in the viewport', () {
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final data = [0, 1, 2, 3, 4, 5, 6];
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final domainFn = (int index) => data[index];
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final axis = new MockAxis();
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when(axis.compareDomainValueToViewport(0)).thenReturn(-1);
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when(axis.compareDomainValueToViewport(1)).thenReturn(-1);
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when(axis.compareDomainValueToViewport(2)).thenReturn(0);
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when(axis.compareDomainValueToViewport(3)).thenReturn(0);
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when(axis.compareDomainValueToViewport(4)).thenReturn(0);
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when(axis.compareDomainValueToViewport(5)).thenReturn(1);
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when(axis.compareDomainValueToViewport(6)).thenReturn(1);
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final start = renderer.findNearestViewportStart(axis, domainFn, data);
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expect(start, equals(2));
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});
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test('extents are all in the viewport, use the first domain', () {
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// Start of viewport is the same as the start of the domain.
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final data = [0, 1, 2, 3];
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final domainFn = (int index) => data[index];
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final axis = new MockAxis();
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when(axis.compareDomainValueToViewport(any)).thenReturn(0);
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final start = renderer.findNearestViewportStart(axis, domainFn, data);
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expect(start, equals(0));
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});
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test('is the first domain', () {
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final data = [0, 1, 2, 3];
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final domainFn = (int index) => data[index];
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final axis = new MockAxis();
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when(axis.compareDomainValueToViewport(0)).thenReturn(0);
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when(axis.compareDomainValueToViewport(1)).thenReturn(1);
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when(axis.compareDomainValueToViewport(2)).thenReturn(1);
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when(axis.compareDomainValueToViewport(3)).thenReturn(1);
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final start = renderer.findNearestViewportStart(axis, domainFn, data);
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expect(start, equals(0));
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});
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test('is the last domain', () {
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final data = [0, 1, 2, 3];
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final domainFn = (int index) => data[index];
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final axis = new MockAxis();
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when(axis.compareDomainValueToViewport(0)).thenReturn(-1);
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when(axis.compareDomainValueToViewport(1)).thenReturn(-1);
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when(axis.compareDomainValueToViewport(2)).thenReturn(-1);
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when(axis.compareDomainValueToViewport(3)).thenReturn(0);
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final start = renderer.findNearestViewportStart(axis, domainFn, data);
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expect(start, equals(3));
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});
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test('is the middle', () {
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final data = [0, 1, 2, 3, 4, 5, 6];
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final domainFn = (int index) => data[index];
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final axis = new MockAxis();
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when(axis.compareDomainValueToViewport(0)).thenReturn(-1);
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when(axis.compareDomainValueToViewport(1)).thenReturn(-1);
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when(axis.compareDomainValueToViewport(2)).thenReturn(-1);
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when(axis.compareDomainValueToViewport(3)).thenReturn(0);
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when(axis.compareDomainValueToViewport(4)).thenReturn(1);
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when(axis.compareDomainValueToViewport(5)).thenReturn(1);
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when(axis.compareDomainValueToViewport(6)).thenReturn(1);
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final start = renderer.findNearestViewportStart(axis, domainFn, data);
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expect(start, equals(3));
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});
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test('viewport is between data', () {
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final data = [0, 1, 2, 3];
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final domainFn = (int index) => data[index];
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final axis = new MockAxis();
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when(axis.compareDomainValueToViewport(0)).thenReturn(-1);
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when(axis.compareDomainValueToViewport(1)).thenReturn(-1);
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when(axis.compareDomainValueToViewport(2)).thenReturn(1);
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when(axis.compareDomainValueToViewport(3)).thenReturn(1);
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final start = renderer.findNearestViewportStart(axis, domainFn, data);
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expect(start, equals(1));
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});
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// Error case, viewport shouldn't be set to the outside of the extents.
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// We still want to provide a value.
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test('all extents greater than viewport ', () {
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// Return the right most value as start of viewport.
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final data = [0, 1, 2, 3];
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final domainFn = (int index) => data[index];
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final axis = new MockAxis();
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when(axis.compareDomainValueToViewport(any)).thenReturn(1);
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final start = renderer.findNearestViewportStart(axis, domainFn, data);
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expect(start, equals(3));
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});
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// Error case, viewport shouldn't be set to the outside of the extents.
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// We still want to provide a value.
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test('all extents less than viewport ', () {
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// Return the left most value as the start of the viewport.
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final data = [0, 1, 2, 3];
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final domainFn = (int index) => data[index];
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final axis = new MockAxis();
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when(axis.compareDomainValueToViewport(any)).thenReturn(-1);
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final start = renderer.findNearestViewportStart(axis, domainFn, data);
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expect(start, equals(0));
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});
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});
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group('find viewport end', () {
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test('several domains are in the viewport', () {
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final data = [0, 1, 2, 3, 4, 5, 6];
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final domainFn = (int index) => data[index];
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final axis = new MockAxis();
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when(axis.compareDomainValueToViewport(0)).thenReturn(-1);
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when(axis.compareDomainValueToViewport(1)).thenReturn(-1);
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when(axis.compareDomainValueToViewport(2)).thenReturn(0);
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when(axis.compareDomainValueToViewport(3)).thenReturn(0);
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when(axis.compareDomainValueToViewport(4)).thenReturn(0);
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when(axis.compareDomainValueToViewport(5)).thenReturn(1);
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when(axis.compareDomainValueToViewport(6)).thenReturn(1);
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final start = renderer.findNearestViewportEnd(axis, domainFn, data);
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expect(start, equals(4));
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});
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test('extents are all in the viewport, use the last domain', () {
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// Start of viewport is the same as the end of the domain.
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final data = [0, 1, 2, 3];
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final domainFn = (int index) => data[index];
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final axis = new MockAxis();
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when(axis.compareDomainValueToViewport(any)).thenReturn(0);
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final start = renderer.findNearestViewportEnd(axis, domainFn, data);
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expect(start, equals(3));
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});
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test('is the first domain', () {
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final data = [0, 1, 2, 3];
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final domainFn = (int index) => data[index];
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final axis = new MockAxis();
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when(axis.compareDomainValueToViewport(0)).thenReturn(0);
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when(axis.compareDomainValueToViewport(1)).thenReturn(1);
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when(axis.compareDomainValueToViewport(2)).thenReturn(1);
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when(axis.compareDomainValueToViewport(3)).thenReturn(1);
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final start = renderer.findNearestViewportEnd(axis, domainFn, data);
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expect(start, equals(0));
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});
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test('is the last domain', () {
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final data = [0, 1, 2, 3];
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final domainFn = (int index) => data[index];
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final axis = new MockAxis();
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when(axis.compareDomainValueToViewport(0)).thenReturn(-1);
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when(axis.compareDomainValueToViewport(1)).thenReturn(-1);
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when(axis.compareDomainValueToViewport(2)).thenReturn(-1);
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when(axis.compareDomainValueToViewport(3)).thenReturn(0);
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final start = renderer.findNearestViewportEnd(axis, domainFn, data);
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expect(start, equals(3));
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});
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test('is the middle', () {
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final data = [0, 1, 2, 3, 4, 5, 6];
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final domainFn = (int index) => data[index];
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final axis = new MockAxis();
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when(axis.compareDomainValueToViewport(0)).thenReturn(-1);
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when(axis.compareDomainValueToViewport(1)).thenReturn(-1);
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when(axis.compareDomainValueToViewport(2)).thenReturn(-1);
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when(axis.compareDomainValueToViewport(3)).thenReturn(0);
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when(axis.compareDomainValueToViewport(4)).thenReturn(1);
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when(axis.compareDomainValueToViewport(5)).thenReturn(1);
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when(axis.compareDomainValueToViewport(6)).thenReturn(1);
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final start = renderer.findNearestViewportEnd(axis, domainFn, data);
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expect(start, equals(3));
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});
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test('viewport is between data', () {
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final data = [0, 1, 2, 3];
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final domainFn = (int index) => data[index];
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final axis = new MockAxis();
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when(axis.compareDomainValueToViewport(0)).thenReturn(-1);
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when(axis.compareDomainValueToViewport(1)).thenReturn(-1);
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when(axis.compareDomainValueToViewport(2)).thenReturn(1);
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when(axis.compareDomainValueToViewport(3)).thenReturn(1);
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final start = renderer.findNearestViewportEnd(axis, domainFn, data);
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expect(start, equals(2));
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});
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// Error case, viewport shouldn't be set to the outside of the extents.
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// We still want to provide a value.
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test('all extents greater than viewport ', () {
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// Return the right most value as start of viewport.
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final data = [0, 1, 2, 3];
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final domainFn = (int index) => data[index];
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final axis = new MockAxis();
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when(axis.compareDomainValueToViewport(any)).thenReturn(1);
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final start = renderer.findNearestViewportEnd(axis, domainFn, data);
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expect(start, equals(3));
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});
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// Error case, viewport shouldn't be set to the outside of the extents.
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// We still want to provide a value.
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test('all extents less than viewport ', () {
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// Return the left most value as the start of the viewport.
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final data = [0, 1, 2, 3];
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final domainFn = (int index) => data[index];
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final axis = new MockAxis();
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when(axis.compareDomainValueToViewport(any)).thenReturn(-1);
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final start = renderer.findNearestViewportEnd(axis, domainFn, data);
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expect(start, equals(0));
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});
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});
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}
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