encompass-cs/test/EngineTest.cs

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using NUnit.Framework;
using System.Linq;
using Encompass;
using System.Collections.Generic;
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using System;
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namespace Tests
{
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public class EngineTest
{
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static IEnumerable<MockComponent> resultComponents;
static MockComponent resultComponent;
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public class ReadComponentsTestEngine : Engine
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{
public override void Update(float dt)
{
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resultComponents = this.ReadComponents<MockComponent>();
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}
}
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public class ReadComponentTestEngine : Engine
{
public override void Update(float dt)
{
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resultComponent = this.ReadComponent<MockComponent>();
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}
}
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[Test]
public void ReadComponents()
{
var worldBuilder = new WorldBuilder();
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worldBuilder.AddEngine<ReadComponentsTestEngine>();
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var entity = worldBuilder.CreateEntity();
MockComponent mockComponent;
mockComponent.myInt = 0;
mockComponent.myString = "hello";
MockComponent mockComponentB;
mockComponentB.myInt = 1;
mockComponentB.myString = "howdy";
entity.AddComponent(mockComponent);
entity.AddComponent(mockComponentB);
var world = worldBuilder.Build();
world.Update(0.01f);
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Assert.Contains(mockComponent, resultComponents.ToList());
Assert.Contains(mockComponentB, resultComponents.ToList());
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}
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[Test]
public void ReadComponent()
{
var worldBuilder = new WorldBuilder();
worldBuilder.AddEngine<ReadComponentTestEngine>();
var entity = worldBuilder.CreateEntity();
MockComponent mockComponent;
mockComponent.myInt = 0;
mockComponent.myString = "hello";
entity.AddComponent(mockComponent);
var world = worldBuilder.Build();
world.Update(0.01f);
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Assert.AreEqual(mockComponent, resultComponent);
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}
[Test]
public void ReadComponentWhenMultipleComponents()
{
var worldBuilder = new WorldBuilder();
worldBuilder.AddEngine<ReadComponentTestEngine>();
var entity = worldBuilder.CreateEntity();
MockComponent mockComponent;
mockComponent.myInt = 0;
mockComponent.myString = "hello";
MockComponent mockComponentB;
mockComponentB.myInt = 1;
mockComponentB.myString = "howdy";
entity.AddComponent(mockComponent);
entity.AddComponent(mockComponentB);
var world = worldBuilder.Build();
Assert.Throws<InvalidOperationException>(() => world.Update(0.01f));
}
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[Mutates(typeof(MockComponent))]
public class UpdateComponentTestEngine : Engine
{
public override void Update(float dt)
{
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var component = this.ReadComponent<MockComponent>();
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this.UpdateComponent(component, (MockComponent comp) =>
{
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comp.myInt = 420;
comp.myString = "blaze it";
return comp;
});
resultComponent = this.ReadComponent<MockComponent>();
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}
}
[Test]
public void UpdateComponent()
{
var worldBuilder = new WorldBuilder();
worldBuilder.AddEngine<UpdateComponentTestEngine>();
var entity = worldBuilder.CreateEntity();
MockComponent mockComponent;
mockComponent.myInt = 0;
mockComponent.myString = "hello";
entity.AddComponent(mockComponent);
var world = worldBuilder.Build();
world.Update(0.01f);
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Assert.AreEqual(420, resultComponent.myInt);
Assert.AreEqual("blaze it", resultComponent.myString);
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}
public class UndeclaredUpdateComponentTestEngine : Engine
{
public override void Update(float dt)
{
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var component = this.ReadComponent<MockComponent>();
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this.UpdateComponent(component, (MockComponent comp) =>
{
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comp.myInt = 420;
comp.myString = "blaze it";
return comp;
});
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component = this.ReadComponent<MockComponent>();
}
}
[Test]
public void UpdateUndeclaredComponent()
{
var worldBuilder = new WorldBuilder();
worldBuilder.AddEngine<UndeclaredUpdateComponentTestEngine>();
var entity = worldBuilder.CreateEntity();
MockComponent mockComponent;
mockComponent.myInt = 0;
mockComponent.myString = "hello";
entity.AddComponent(mockComponent);
var world = worldBuilder.Build();
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var ex = Assert.Throws<IllegalComponentMutationException>(() => world.Update(0.01f));
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Assert.That(ex.Message, Is.EqualTo("Engine UndeclaredUpdateComponentTestEngine tried to mutate undeclared Component MockComponent"));
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}
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}
}