forked from AutoFixture/AutoFixture
/
CompositeSpecimenBuilderTest.cs
185 lines (171 loc) · 6.61 KB
/
CompositeSpecimenBuilderTest.cs
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using System;
using System.Text;
using System.Collections.Generic;
using System.Linq;
using Microsoft.VisualStudio.TestTools.UnitTesting;
using Ploeh.AutoFixture.Kernel;
namespace Ploeh.AutoFixtureUnitTest
{
[TestClass]
public class CompositeSpecimenBuilderTest
{
[TestMethod]
public void SutIsSpecimenBuilder()
{
// Fixture setup
// Exercise system
var sut = new CompositeSpecimenBuilder();
// Verify outcome
Assert.IsInstanceOfType(sut, typeof(ISpecimenBuilder));
// Teardown
}
[TestMethod]
public void BuildersWillNotBeNullWhenSutIsCreatedWithDefaultConstructor()
{
// Fixture setup
var sut = new CompositeSpecimenBuilder();
// Exercise system
IList<ISpecimenBuilder> result = sut.Builders;
// Verify outcome
Assert.IsNotNull(result, "Builders");
// Teardown
}
[ExpectedException(typeof(ArgumentNullException))]
[TestMethod]
public void CreateWithNullEnumerableWillThrow()
{
// Fixture setup
IEnumerable<ISpecimenBuilder> nullEnumerable = null;
// Exercise system
new CompositeSpecimenBuilder(nullEnumerable);
// Verify outcome (expected exception)
// Teardown
}
[TestMethod]
public void BuildersWillMatchListParameter()
{
// Fixture setup
var expectedBuilders = new ISpecimenBuilder[]
{
new DelegatingSpecimenBuilder(),
new DelegatingSpecimenBuilder(),
new DelegatingSpecimenBuilder()
}.AsEnumerable();
var sut = new CompositeSpecimenBuilder(expectedBuilders);
// Exercise system
var result = sut.Builders;
// Verify outcome
Assert.IsTrue(expectedBuilders.SequenceEqual(result), "Builders");
// Teardown
}
[ExpectedException(typeof(ArgumentNullException))]
[TestMethod]
public void CreateWithNullArrayWillThrow()
{
// Fixture setup
ISpecimenBuilder[] nullArray = null;
// Exercise system
new CompositeSpecimenBuilder(nullArray);
// Verify outcome (expected exception)
// Teardown
}
[TestMethod]
public void BuildersWillMatchParamsArray()
{
// Fixture setup
var expectedBuilders = new ISpecimenBuilder[]
{
new DelegatingSpecimenBuilder(),
new DelegatingSpecimenBuilder(),
new DelegatingSpecimenBuilder()
};
var sut = new CompositeSpecimenBuilder(expectedBuilders[0], expectedBuilders[1], expectedBuilders[2]);
// Exercise system
var result = sut.Builders;
// Verify outcome
Assert.IsTrue(expectedBuilders.SequenceEqual(result), "Builders");
// Teardown
}
[TestMethod]
public void CreateWillReturnFirstNonNullResultFromBuilders()
{
// Fixture setup
var expectedResult = new object();
var builders = new ISpecimenBuilder[]
{
new DelegatingSpecimenBuilder { OnCreate = (r, c) => null },
new DelegatingSpecimenBuilder { OnCreate = (r, c) => expectedResult },
new DelegatingSpecimenBuilder { OnCreate = (r, c) => new object() }
};
var sut = new CompositeSpecimenBuilder(builders);
// Exercise system
var anonymousRequest = new object();
var dummyContainer = new DelegatingSpecimenContainer();
var result = sut.Create(anonymousRequest, dummyContainer);
// Verify outcome
Assert.AreEqual(expectedResult, result, "Create");
// Teardown
}
[TestMethod]
public void CreateWillReturnNullIfAllBuildersReturnNull()
{
// Fixture setup
var builders = new ISpecimenBuilder[]
{
new DelegatingSpecimenBuilder { OnCreate = (r, c) => null },
new DelegatingSpecimenBuilder { OnCreate = (r, c) => null },
new DelegatingSpecimenBuilder { OnCreate = (r, c) => null }
};
var sut = new CompositeSpecimenBuilder(builders);
// Exercise system
var anonymousRequest = new object();
var dummyContainer = new DelegatingSpecimenContainer();
var result = sut.Create(anonymousRequest, dummyContainer);
// Verify outcome
Assert.IsNull(result, "Create");
// Teardown
}
[TestMethod]
public void CreateWillInvokeBuilderWithCorrectRequest()
{
// Fixture setup
var expectedRequest = new object();
var mockVerified = false;
var builderMock = new DelegatingSpecimenBuilder();
builderMock.OnCreate = (r, c) =>
{
Assert.AreEqual(expectedRequest, r, "Create");
mockVerified = true;
return new object();
};
var sut = new CompositeSpecimenBuilder(builderMock);
// Exercise system
var dummyContainer = new DelegatingSpecimenContainer();
sut.Create(expectedRequest, dummyContainer);
// Verify outcome
Assert.IsTrue(mockVerified, "Mock verification");
// Teardown
}
[TestMethod]
public void CreateWillInvokeBuilderWithCorrectContainer()
{
// Fixture setup
var expectedContainer = new DelegatingSpecimenContainer();
var mockVerified = false;
var builderMock = new DelegatingSpecimenBuilder();
builderMock.OnCreate = (r, c) =>
{
Assert.AreEqual(expectedContainer, c, "Create");
mockVerified = true;
return new object();
};
var sut = new CompositeSpecimenBuilder(builderMock);
// Exercise system
var dummyRequest = new object();
sut.Create(dummyRequest, expectedContainer);
// Verify outcome
Assert.IsTrue(mockVerified, "Mock verification");
// Teardown
}
}
}