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Allow Optional Injection of grid size into engine on creation

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This commit is contained in:
Marty Oehme 2018-08-27 20:13:19 +02:00
parent 9886f13d69
commit 873bd9c881
3 changed files with 24 additions and 21 deletions
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6
lib/src/Engine.dart
View file

@ -46,8 +46,8 @@ class Engine {
Grid _grid; Grid _grid;
bool running = false; bool running = false;
Engine([this.canvas]) { Engine([x = 100, y = 100, this.canvas]) {
_grid = Grid(gridSize.x, gridSize.y); _grid = Grid(x, y);
_elapsed.start(); _elapsed.start();
_grid.addPattern(amount: 15, dispersal: 5); _grid.addPattern(amount: 15, dispersal: 5);
@ -115,7 +115,7 @@ class Engine {
/// the internal engine processing. Does not do anything if no canvas is /// the internal engine processing. Does not do anything if no canvas is
/// defined. /// defined.
void render([num interp]) { void render([num interp]) {
if(canvas != null) _grid.render(canvas, interp); if (canvas != null) _grid.render(canvas, interp);
} }
void addPattern( void addPattern(

6
test/service/engine_service_test.dart
View file

@ -1,8 +1,8 @@
import 'package:mockito/mockito.dart';
import 'package:rules_of_living/service/engine_service.dart';
import 'package:rules_of_living/src/Engine.dart';
@TestOn('browser') @TestOn('browser')
import 'package:test/test.dart'; import 'package:test/test.dart';
import 'package:mockito/mockito.dart';
import 'package:rules_of_living/src/Engine.dart';
import 'package:rules_of_living/service/engine_service.dart';
class MockEngine extends Mock implements Engine {} class MockEngine extends Mock implements Engine {}

35
test/src/engine_test.dart
View file

@ -10,23 +10,26 @@ void main() {
setUp(() { setUp(() {
sut = Engine(); sut = Engine();
}); });
group("canvas", () {
test("Engine can be instantiated without canvas", () {
expect(sut, isNot(throwsNoSuchMethodError));
});
test("Engine can be instantiated without canvas", () { test("Engine does not throw errors when calling render directly", () {
expect(sut, isNot(throwsNoSuchMethodError)); // anonymous function necessary since throws can not use functions with args
expect(() => sut.render, isNot(throwsNoSuchMethodError));
});
test("Engine does not throw errors when processing without attached canvas",
() {
// anonymous function necessary since throws can not use functions with args
expect(() => sut.process, isNot(throwsNoSuchMethodError));
});
test("setCanvas allows setting a canvas for an engine at any point", () {
sut.canvas = new html.CanvasElement();
expect(sut.canvas, isNotNull);
});
}); });
test("Engine does not throw errors when calling render directly", () {
// anonymous function necessary since throws can not use functions with args
expect(() => sut.render, isNot(throwsNoSuchMethodError));
});
test("Engine does not throw errors when processing without attached canvas", () {
// anonymous function necessary since throws can not use functions with args
expect(() => sut.process, isNot(throwsNoSuchMethodError));
});
test("setCanvas allows setting a canvas for an engine at any point", () {
sut.canvas = new html.CanvasElement();
expect(sut.canvas, isNotNull);
}); });
} }