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Throw a better exception than an NRE if they forget to call builder.Bind(..).To(..) 

Fixes #114
This commit is contained in:
Antony Male 2020-04-23 17:58:28 +01:00
parent bc068f8b27
commit 9f7b596a5e
2 changed files with 13 additions and 2 deletions
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5
Stylet/StyletIoC/Internal/Builders/BuilderBindTo.cs
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@ -12,7 +12,7 @@ namespace StyletIoC.Internal.Builders
private readonly Func<IEnumerable<Assembly>, string, IEnumerable<Assembly>> getAssemblies;
public List<BuilderTypeKey> ServiceTypes { get; private set; }
private BuilderBindingBase builderBinding;
public bool IsWeak { get { return this.builderBinding.IsWeak; } }
public bool IsWeak { get { return this.builderBinding?.IsWeak ?? false; } }
public BuilderBindTo(Type serviceType, Func<IEnumerable<Assembly>, string, IEnumerable<Assembly>> getAssemblies)
{
@ -91,6 +91,9 @@ namespace StyletIoC.Internal.Builders
internal void Build(Container container)
{
if (this.builderBinding == null)
throw new StyletIoCRegistrationException(String.Format("Service type {0} is not bound to anything", this.ServiceTypes[0].Type.GetDescription()));
this.builderBinding.Build(container);
}
}

10
StyletUnitTests/StyletIoC/StyletIoCBindingChecksTests.cs
View File

@ -86,11 +86,19 @@ namespace StyletUnitTests.StyletIoC
}
[Test]
public void AllowsInstanceTobeInterfaceType()
public void AllowsInstanceToBeInterfaceType()
{
var builder = new StyletIoCBuilder();
I1 i1 = new C1();
Assert.DoesNotThrow(() => builder.Bind<I1>().ToInstance(i1));
}
[Test]
public void ThrowsIfMissingBuilderBinding()
{
var builder = new StyletIoCBuilder();
builder.Bind<C1>();
Assert.Throws<StyletIoCRegistrationException>(() => builder.BuildContainer());
}
}
}