public void CreatesInstanceResolvingConstructorParamsViaInjector()
{
Instantiator instantiator;
TestClassWithConstructorWithDependency instance;
ITestDependency dependency;
IDivineInjector injector;
Scenario()
.Given(dependency = AMock<ITestDependency>().Instance)
.Given(injector = AMock<IDivineInjector>()
.WhereMethod(i => i.IsBound(typeof(ITestDependency))).Returns(true)
.WhereMethod(i => i.Get(typeof(ITestDependency))).Returns(dependency)
.Instance)
.Given(instantiator = new Instantiator(injector))
.When(instance = instantiator.Create<TestClassWithConstructorWithDependency>())
.Then(instance, Is(AnInstance.NotNull<TestClassWithConstructorWithDependency>()))
.Then(instance.Dependency, Is(AnInstance.SameAs(dependency)));
}
public void CreatesInstanceUsingFirstConstructorThatCanBeInjected()
{
Instantiator instantiator;
TestClassWithAnUninjectableConstructor instance;
ITestDependency dependency;
IDivineInjector injector;
Scenario()
.Given(dependency = AMock<ITestDependency>().Instance)
.Given(injector = AMock<IDivineInjector>()
.WhereMethod(i => i.IsBound(typeof(ITestDependency))).Returns(true)
.WhereMethod(i => i.IsBound(typeof(string))).Returns(false)
.WhereMethod(i => i.Get(typeof(ITestDependency))).Returns(dependency)
.Instance)
.Given(instantiator = new Instantiator(injector))
.When(instance = instantiator.Create<TestClassWithAnUninjectableConstructor>())
.Then(instance, Is(AnInstance.NotNull<TestClassWithAnUninjectableConstructor>()))
.Then(instance.Dependency, Is(AnInstance.SameAs(dependency)));
}
public void CreatesInstanceUsingConstructorWithFewestNumberOfParameters()
{
Instantiator instantiator;
TestClassWithTwoConstructorsWithDependencies instance;
ITestDependency dependency;
IDivineInjector injector;
Scenario()
.Given(dependency = AMock<ITestDependency>().Instance)
.Given(injector = AMock<IDivineInjector>()
.WhereMethod(i => i.IsBound(typeof(ITestDependency))).Returns(true)
.WhereMethod(i => i.IsBound(typeof(ITestSecondDependency))).Returns(false)
.WhereMethod(i => i.Get(typeof(ITestDependency))).Returns(dependency)
.Instance)
.Given(instantiator = new Instantiator(injector))
.When(instance = instantiator.Create<TestClassWithTwoConstructorsWithDependencies>())
.Then(instance, Is(AnInstance.NotNull<TestClassWithTwoConstructorsWithDependencies>()))
.Then(instance.Dependency, Is(AnInstance.SameAs(dependency)));
}
public void CreateThrowsExceptionInCaseNoInjectableConstructorsFound()
{
Instantiator instantiator;
ITestDependency dependency;
IDivineInjector injector;
Exception exception;
Scenario()
.Given(dependency = AMock<ITestDependency>().Instance)
.Given(injector = AMock<IDivineInjector>()
.WhereMethod(i => i.IsBound(typeof(ITestSecondDependency))).Returns(false)
.WhereMethod(i => i.IsBound(typeof(string))).Returns(false)
.Instance)
.Given(instantiator = new Instantiator(injector))
.When(exception = CaughtException(() => instantiator.Create<TestClassThatCannotBeInjected>()))
.Then(exception,
Is(AnException.Of().Type<BindingException>()
.Message("Cannot create DivineInject.Test.TestClassThatCannotBeInjected, could not find an injectable constructor because the following types are not injectable: System.String, DivineInject.Test.ITestSecondDependency")));
}
public void CreatesInstanceUsingNoArgConstructor()
{
Instantiator instantiator;
object instance;
Scenario()
.Given(instantiator = new Instantiator(AMock<IDivineInjector>().Instance))
.When(instance = instantiator.Create<TestClassWithNoArgConstructor>())
.Then((TestClassWithNoArgConstructor)instance, Is(AnInstance.NotNull<TestClassWithNoArgConstructor>()));
}