Add dependency on events

[rbdr/serpentity] / test / integration.js

diff --git a/test/integration.js b/test/integration.js
index 0ca7e26ab67c65c716a894af2a873db4d0708050..5b6e595eb26d0a01805f382fec981380ef796b3a 100644 (file)
--- a/test/integration.js
+++ b/test/integration.js
@@ -1,163 +1,310 @@
 'use strict';
 
 'use strict';
 

-let test = function test (Serpentity) {
-
-  /* eslint no-console: 0 */
-
-  /////////////////
-  // Load the stuff
-  /////////////////
-  console.log('\n## Loading');
-  console.log('Serpentity: ' + (typeof Serpentity !== 'undefined' ? 'LOAD OK' : 'FAIL'));
-  console.log('Serpentity.Entity: ' + (typeof Serpentity !== 'undefined' && Serpentity.Entity ? 'LOAD OK' : 'FAIL'));
-  console.log('Serpentity.Component: ' + (typeof Serpentity !== 'undefined' && Serpentity.Component ? 'LOAD OK' : 'FAIL'));
-  console.log('Serpentity.System: ' + (typeof Serpentity !== 'undefined' && Serpentity.System ? 'LOAD OK' : 'FAIL'));
-  console.log('Serpentity.Node: ' + (typeof Serpentity !== 'undefined' && Serpentity.Node ? 'LOAD OK' : 'FAIL'));
-  console.log('Serpentity.NodeCollection: ' + (typeof Serpentity !== 'undefined' && Serpentity.NodeCollection ? 'LOAD OK' : 'FAIL'));
-
-  //////////////////////
-  // Create test classes
-  //////////////////////
-  console.log('\n## Creating Test Classes');
-  let TestSystem = class TestSystem extends Serpentity.System {
-    added (engine) {
-      this.testNodes = engine.getNodes(TestNode);
-      console.log('Engine is serpentity: ' + (engine instanceof Serpentity ? 'OK' : 'FAIL'));
-      console.log('System added callback: EXEC OK');
-    }
+const Code = require('code');   // assertion library
+const Lab = require('lab');
+const Serpentity = require('..');

 
 

-    removed (engine) {
-      this.testNodes = null;
-      console.log('Engine is serpentity: ' + (engine instanceof Serpentity ? 'OK' : 'FAIL'));
-      console.log('System removed callback: EXEC OK');
-    }
+const internals = {
+  system: class TestSystem extends Serpentity.System {
+    added(engine) {

 
 

-    update (dt) {
-      this.testNodes.forEach(function (node) {
-        console.log('Running Node: ' + (node.test.testMessage === 'test' ? 'SYSTEM OK' : 'FAIL'));
-      });
-      console.log('dt is number: ' + (typeof dt === 'number' ? 'OK' : 'FAIL'));
-      console.log('System update callback: EXEC OK');
-    }
-  };
-  let testSystem = new TestSystem();
-
-  let LowProTestSystem = class LowProTestSystem extends Serpentity.System {
-    added (engine) {
-      this.testNodes = engine.getNodes(TestNode);
-      console.log('Engine is serpentity: ' + (engine instanceof Serpentity ? 'OK' : 'FAIL'));
-      console.log('System added callback: EXEC OK');
+      this.testNodes = engine.getNodes(internals.node);
+      this.addedCalled = true;
+      this.addedEngine = engine;

     }
 
     }
 

-    removed (engine) {
+    removed(engine) {
+

       this.testNodes = null;
       this.testNodes = null;

-      console.log('Engine is serpentity: ' + (engine instanceof Serpentity ? 'OK' : 'FAIL'));
-      console.log('System removed callback: EXEC OK');
+      this.removedCalled = true;
+      this.removedEngine = engine;

     }
 
     }
 

-    update (dt) {
-      this.testNodes.forEach(function (node) {
-        console.log('Running Low Priority Node: ' + (node.test.testMessage === 'test' ? 'SYSTEM OK' : 'FAIL'));
-      });
-      console.log('dt is number: ' + (typeof dt === 'number' ? 'OK' : 'FAIL'));
-      console.log('System update callback: EXEC OK');
-    }
-  };
-  let lowProTestSystem = new LowProTestSystem();
-  console.log('LowProTestSystem: CREATE OK');
-
-  let MidProTestSystem = class MidProTestSystem extends Serpentity.System {
-    added (engine) {
-      this.testNodes = engine.getNodes(TestNode);
-      console.log('Engine is serpentity: ' + (engine instanceof Serpentity ? 'OK' : 'FAIL'));
-      console.log('System added callback: EXEC OK');
-    }
+    update(dt) {

 
 

-    removed (engine) {
-      this.testNodes = null;
-      console.log('Engine is serpentity: ' + (engine instanceof Serpentity ? 'OK' : 'FAIL'));
-      console.log('System removed callback: EXEC OK');
-    }
+      this.updateCalled = Date.now();
+      this.updateDt = dt;

 
 

-    update (dt) {
-      this.testNodes.forEach(function (node) {
-        console.log('Running Mid Priority Node: ' + (node.test.testMessage === 'test' ? 'SYSTEM OK' : 'FAIL'));
-      });
-      console.log('dt is number: ' + (typeof dt === 'number' ? 'OK' : 'FAIL'));
-      console.log('System update callback: EXEC OK');
-    }
-  };
-  var midProTestSystem = new MidProTestSystem();
-  console.log('MidProTestSystem: CREATE OK');
+      for (const node of this.testNodes) {
+        node.test.called = true;
+        node.entity.called = true;
+      }

 
 

+      while (Date.now() === this.updateCalled) { /* pass some time */ }
+    }
+  },
+  component: class TestComponent extends Serpentity.Component {
+    constructor(config) {

 
 

-  let TestComponent = class TestComponent extends Serpentity.Component {
-    constructor (config) {

       super(config);
 
       super(config);
 

-      this.testMessage = this.testMessage || 'test';
+      this.called = false;

     }
     }

-  };
-  console.log('TestComponent: CREATE OK');
+  },
+  node: class TestNode extends Serpentity.Node {},
+  delta: 10
+};

 
 

-  let TestNode = class TestNode extends Serpentity.Node {};
-  TestNode.types = {
-    test : TestComponent
-  };
-  console.log('TestNode: CREATE OK');
+// adds a component to the node
+internals.node.types = {
+  test: internals.component
+};

 
 

-  console.log('\n## Adding system to the engine');
+const lab = exports.lab = Lab.script();

 
 

-  let engine = new Serpentity();
-  console.log('engine: CREATE OK');
+lab.experiment('loading', () => {

 
 

-  engine.addSystem(testSystem, 0);
+  lab.test('Serpentity should be exported', (done) => {

 
 

-  console.log('\n## Running update without any entities');
-  engine.update(10);
+    Code.expect(typeof Serpentity).to.not.be.undefined();
+    done();
+  });

 
 

-  console.log('\n## Adding system to the engine and updating');
-  let entity = new Serpentity.Entity();
-  entity.addComponent(new TestComponent());
-  engine.addEntity(entity);
-  engine.update(10);
+  lab.test('Serpentity should include the Entity class', (done) => {

 
 

-  console.log('\n## Adding Low Priority System');
-  engine.addSystem(lowProTestSystem, 10);
-  engine.update(10);
+    Code.expect(typeof Serpentity.Entity).to.not.be.undefined();
+    done();
+  });

 
 

-  console.log('\n## Adding Mid Priority System');
-  engine.addSystem(midProTestSystem, 5);
-  engine.update(10);
+  lab.test('Serpentity should include the Component class', (done) => {

 
 

-  console.log('\n## Removing the system and readding');
-  engine.removeSystem(testSystem);
-  engine.update(10);
-  engine.addSystem(testSystem, 0);
-  engine.update(10);
+    Code.expect(typeof Serpentity.Component).to.not.be.undefined();
+    done();
+  });

 
 

-  console.log('\n## Adding a second entity');
-  entity = new Serpentity.Entity();
-  entity.addComponent(new TestComponent());
-  engine.addEntity(entity);
-  engine.update(10);
+  lab.test('Serpentity should include the System class', (done) => {

 
 

-  console.log('\n## Removing  entity');
-  engine.removeEntity(entity);
-  engine.update(10);
+    Code.expect(typeof Serpentity.System).to.not.be.undefined();
+    done();
+  });

 
 

-  console.log('\n## Removing  system');
-  engine.removeSystem(testSystem);
-  engine.update(10);
+  lab.test('Serpentity should include the Node class', (done) => {

 
 

-};
+    Code.expect(typeof Serpentity.Node).to.not.be.undefined();
+    done();
+  });
+
+  lab.test('Serpentity should include the NodeCollection class', (done) => {
+
+    Code.expect(typeof Serpentity.NodeCollection).to.not.be.undefined();
+    done();
+  });
+});
+
+lab.experiment('Engine Tests', () => {
+
+  lab.beforeEach((done) => {
+
+    this.engine = new Serpentity();
+
+    this.regularSystem = new internals.system();
+    this.highPrioritySystem = new internals.system();
+    this.lowPrioritySystem = new internals.system();
+
+    this.firstEntity = new Serpentity.Entity();
+    this.firstEntity.addComponent(new internals.component());
+    this.secondEntity = new Serpentity.Entity();
+    this.secondEntity.addComponent(new internals.component());
+    this.emptyEntity = new Serpentity.Entity();
+
+    // Add entity before the systems
+    this.engine.addEntity(this.firstEntity);
+
+    this.engine.addSystem(this.regularSystem, 100);
+    this.engine.addSystem(this.highPrioritySystem, 0);
+    this.engine.addSystem(this.lowPrioritySystem, 1000);
+
+    // Add entity after the systems
+    this.engine.addEntity(this.secondEntity);
+    this.engine.addEntity(this.emptyEntity);
+
+    done();
+  });
+
+  lab.test('Engine should call added callback on added systems', (done) => {
+
+    // Ensure the added callback is being called
+    Code.expect(this.regularSystem.addedCalled).to.be.true();
+    Code.expect(this.highPrioritySystem.addedCalled).to.be.true();
+    Code.expect(this.lowPrioritySystem.addedCalled).to.be.true();
+
+    done();
+  });
+
+  lab.test('Engine should send the engine instance in added callback', (done) => {
+
+    // Ensure the added callback is sending the engine
+    Code.expect(this.regularSystem.addedEngine instanceof Serpentity).to.be.true();
+    Code.expect(this.highPrioritySystem.addedEngine instanceof Serpentity).to.be.true();
+    Code.expect(this.lowPrioritySystem.addedEngine instanceof Serpentity).to.be.true();
+
+    done();
+  });
+
+  lab.test('Engine should not add duplicate systems', (done) => {
+
+    const originalSystemsLength = this.engine.systems.length;
+    const added = this.engine.addSystem(this.regularSystem, 0);
+    const newSystemsLength = this.engine.systems.length;
+
+    // Ensure we don't add the same system twice
+    Code.expect(added).to.be.false();
+    Code.expect(originalSystemsLength).to.be.equal(newSystemsLength);
+
+    done();
+  });
+
+  lab.test('Engine should call update callback on added systems', (done) => {
+
+    this.engine.update(internals.delta);
+
+    // Ensure update function called
+    Code.expect(!!this.regularSystem.updateCalled).to.be.true();
+    Code.expect(!!this.highPrioritySystem.updateCalled).to.be.true();
+    Code.expect(!!this.lowPrioritySystem.updateCalled).to.be.true();

 
 

-if (typeof require === 'function') {
-  let Serpentity = require('serpentity');
-  test(Serpentity);
-} else {
-  window.addEventListener('load', function () {
-    test(window.Serpentity);
+    done();

   });
   });

-}

 
 

+  lab.test('Engine should call update callback in the order of priorities', (done) => {
+
+    this.engine.update(internals.delta);
+
+    // Ensure order of priorities
+    Code.expect(this.regularSystem.updateCalled).to.be.lessThan(this.lowPrioritySystem.updateCalled);
+    Code.expect(this.regularSystem.updateCalled).to.be.greaterThan(this.highPrioritySystem.updateCalled);
+
+    done();
+  });
+
+  lab.test('Engine should send the delta in the update callback', (done) => {
+
+    this.engine.update(internals.delta);
+
+    // Ensure delta is being sent
+    Code.expect(this.regularSystem.updateDt).to.be.equal(internals.delta);
+    Code.expect(this.highPrioritySystem.updateDt).to.be.equal(internals.delta);
+    Code.expect(this.lowPrioritySystem.updateDt).to.be.equal(internals.delta);
+
+    done();
+  });
+
+  lab.test('System remove callback', (done) => {
+
+    const originalSystemLength = this.engine.systems.length;
+    const originalRemoved = this.engine.removeSystem(this.lowPrioritySystem);
+    const intermediateSystemLength = this.engine.systems.length;
+    const finalRemoved = this.engine.removeSystem(this.lowPrioritySystem);
+    const finalSystemLength = this.engine.systems.length;
+    this.engine.update(internals.delta);
+
+    // Check for return value 
+    Code.expect(originalRemoved).to.be.true();
+    Code.expect(finalRemoved).to.be.false();
+
+    // Confirm that only removed if found by checking length of systems
+    // array
+    Code.expect(originalSystemLength).to.be.above(intermediateSystemLength);
+    Code.expect(finalSystemLength).to.be.equal(intermediateSystemLength);
+
+    // Ensure callback is sent
+    Code.expect(!!this.regularSystem.removedCalled).to.be.false();
+    Code.expect(!!this.highPrioritySystem.removedCalled).to.be.false();
+    Code.expect(!!this.lowPrioritySystem.removedCalled).to.be.true();
+
+    // Ensure update is no longer sent
+    Code.expect(!!this.regularSystem.updateCalled).to.be.true();
+    Code.expect(!!this.highPrioritySystem.updateCalled).to.be.true();
+    Code.expect(!!this.lowPrioritySystem.updateCalled).to.be.false();
+
+    done();
+  });
+
+  lab.test('Entity node selection', (done) => {
+
+    this.engine.update(internals.delta);
+
+    // Ensure component is called for each entity
+    Code.expect(!!this.firstEntity._components[0].called).to.be.true();
+    Code.expect(!!this.secondEntity._components[0].called).to.be.true();
+
+    // Ensure entity not in node collection not called
+    Code.expect(!!this.firstEntity.called).to.be.true();
+    Code.expect(!!this.secondEntity.called).to.be.true();
+    Code.expect(!!this.emptyEntity.called).to.be.false();
+
+    done();
+  });
+
+  lab.test('Entity node removal', (done) => {
+
+    this.engine.removeEntity(this.secondEntity);
+    this.engine.update(internals.delta);
+
+    Code.expect(!!this.firstEntity._components[0].called).to.be.true();
+    Code.expect(!!this.secondEntity._components[0].called).to.be.false();
+
+    Code.expect(!!this.firstEntity.called).to.be.true();
+    Code.expect(!!this.secondEntity.called).to.be.false();
+    Code.expect(!!this.emptyEntity.called).to.be.false();
+
+    done();
+  });
+
+  lab.test('Entity should not add duplicate components', (done) => {
+    const originalComponentsLength = this.secondEntity._components.length;
+    const result = this.secondEntity.addComponent(new internals.component());
+    const newComponentsLength = this.secondEntity._components.length;
+
+    Code.expect(result).to.be.false();
+    Code.expect(originalComponentsLength).to.be.equal(newComponentsLength);
+
+    done();
+  });
+
+  lab.test('Entity should allow access to components by class', (done) => {
+    const firstComponent = this.firstEntity.getComponent(internals.component);
+    const emptyComponent = this.emptyEntity.getComponent(internals.component);
+
+    Code.expect(firstComponent instanceof internals.component).to.be.true();
+    Code.expect(emptyComponent).to.be.equal(undefined);
+
+    done();
+  });
+
+  lab.test('Engine should not add duplicate entities', (done) => {
+    const originalEntitiesLength = this.engine.entities.length;
+    const added = this.engine.addEntity(this.firstEntity);
+    const finalEntitiesLength = this.engine.entities.length;
+
+    Code.expect(added).to.be.false();
+
+    Code.expect(originalEntitiesLength).to.be.equal(finalEntitiesLength);
+    done();
+  });
+
+  lab.test('Engine should remove entities', (done) => {
+
+    const originalEntityLength = this.engine.entities.length;
+    const originalRemoved = this.engine.removeEntity(this.firstEntity);
+    const intermediateEntityLength = this.engine.entities.length;
+    const finalRemoved = this.engine.removeEntity(this.firstEntity);
+    const finalEntityLength = this.engine.entities.length;
+    this.engine.update(internals.delta);
+
+    // Check for return value 
+    Code.expect(originalRemoved).to.be.true();
+    Code.expect(finalRemoved).to.be.false();
+
+    // Confirm that only removed if found by checking length of systems
+    // array
+    Code.expect(originalEntityLength).to.be.above(intermediateEntityLength);
+    Code.expect(finalEntityLength).to.be.equal(intermediateEntityLength);
+
+    // Ensure callback is sent
+    Code.expect(!!this.firstEntity.called).to.be.false();
+    Code.expect(!!this.secondEntity.called).to.be.true();
+
+    done();
+  });
+});