public void ThrowsAnExceptionWhenAskedForATestInstanceOutsideOfTheCurrentScope()
{
GivenTheTestScopeIs(TestScopes.Class <PublicClassWithDefaultConstructor>());
GivenTheDependencyProviderIs(FakeDependencyProvider);
var exception = Should.Throw <BigUnitsException>(
() => WhenATestInstanceIsRequested <object>(out _));
exception.Data[ExceptionData.TestInstanceType].ShouldBe(typeof(object));
}
public void ThrowsAnExceptionWhenAskedForADependencyWhereThereAreNoneInTheCurrentScope()
{
GivenTheTestScopeIs(TestScopes.Class <PublicClassWithDefaultConstructor>());
GivenTheDependencyProviderIs(FakeDependencyProvider);
var exception = Should.Throw <BigUnitsException>(
() => TestInstance.GetDependency <object>());
exception.Data[ExceptionData.DependencyType].ShouldBe(typeof(object));
}
public void ProvidesTheSameTestInstanceEachTime()
{
GivenTheTestScopeIs(TestScopes.Class <PublicClassWithDefaultConstructor>());
GivenTheDependencyProviderIs(FakeDependencyProvider);
WhenATestInstanceIsRequested <PublicClassWithDefaultConstructor>(out var firstResult);
WhenATestInstanceIsRequested <PublicClassWithDefaultConstructor>(out var secondResult);
secondResult.ShouldBe(firstResult);
}
public void ThrowsAnExceptionWhenAttemptingToSetADependencyOutsideOfTheCurrentScope()
{
GivenTheTestScopeIs(TestScopes.Class <PublicClassWithASingleConstructorDependency>());
GivenTheDependencyProviderIs(FakeDependencyProvider);
var exception = Should.Throw <BigUnitsException>(
() => TestInstance.SetDependency(new RankException()));
exception.Data[ExceptionData.DependencyType].ShouldBe(typeof(RankException));
}
public void CanCreatePopulatedTestInstances()
{
GivenTheTestScopeIs(TestScopes.Class <PublicClassWithDefaultConstructor>());
GivenTheDependencyProviderIs(FakeDependencyProvider);
WhenATestInstanceIsRequested <PublicClassWithDefaultConstructor>(out var result);
result.ShouldSatisfyAllConditions(
() => result.ShouldNotBeNull(),
() => result.ShouldBeOfType <PublicClassWithDefaultConstructor>()
);
}
public void CanRetrieveTheDependenciesThatAreGoingToBeUsedToBuildTheTestInstance()
{
GivenTheTestScopeIs(TestScopes.Class <PublicClassWithMultipleConstructorDependencies>());
GivenTheDependencyProviderIs(FakeDependencyProvider);
var dependency1 = TestInstance.GetDependency <IDependency <One> >();
var dependency2 = TestInstance.GetDependency <IDependency <Two> >();
var dependency3 = TestInstance.GetDependency <IDependency <Three> >();
WhenATestInstanceIsRequested <PublicClassWithMultipleConstructorDependencies>(out var result);
result.ShouldSatisfyAllConditions(
() => result.Dependency1.ShouldBe(dependency1),
() => result.Dependency2.ShouldBe(dependency2),
() => result.Dependency3.ShouldBe(dependency3)
);
}
protected BaseUnitTest(IDependencyProvider dependencyProvider)
{
_bigUnitBuilder = new BigUnitBuilder()
.WithTestScope(TestScopes.Class <T>())
.WithDependencyProvider(dependencyProvider);
}
