public void ShouldReplaceDependant()
{
DependantCollection <TestDependant> coll = new DependantCollection <TestDependant>();
var original = new TestDependant1();
var replacement = new TestDependant2();
coll.Add(original);
coll.Replace(original, replacement);
Assert.Equal(new[] { replacement }, coll);
}
public void ShouldThrowExceptionForTwoDependantsWithIdenticalTypeDependencies()
{
var dependant1 = new TestDependant1().RequiresAny(typeof(TestDependant));
var dependant2 = new TestDependant2().RequiresAny(typeof(TestDependant));
var coll = new DependantCollection <TestDependant>(new TestDependant[] { dependant1, dependant2 });
var ioex = Assert.Throws <InvalidOperationException>(() => Run(coll));
Assert.IsType <DependencyException>(ioex.InnerException);
}
public void ShouldOrderDependantsOfTwoGroupsOfRelatedDependants()
{
bool[] rootCalled = { false, false };
bool[] midCalled = { false, false };
bool[] dependantCalled = { false, false };
bool[] independentCalled = { false, false };
//group1 of dependency chain
var root1 = new TestDependant1(() => rootCalled[0] = true);
var mid1 = new TestDependant1(() =>
{
Assert.True(rootCalled[0]);
midCalled[0] = true;
}).Requires(root1);
var dependant1 = new TestDependant1(() =>
{
Assert.True(midCalled[0]);
dependantCalled[0] = true;
}).Requires(mid1);
var root2 = new TestDependant2(() => rootCalled[1] = true);
var mid2 = new TestDependant2(() =>
{
Assert.True(rootCalled[1]);
midCalled[1] = true;
}).Requires(root2);
var dependant2 = new TestDependant2(() =>
{
Assert.True(midCalled[1]);
dependantCalled[1] = true;
}).Requires(mid2);
var independent1 = new TestDependant1(() => independentCalled[0] = true);
var independent2 = new TestDependant2(() => independentCalled[1] = true);
RunTest(new TestDependant[] { dependant1, independent1, dependant2,
mid2, mid1, root1, independent2, root2 },
c =>
{
Assert.True(dependantCalled[0]);
Assert.True(dependantCalled[1]);
Assert.True(independentCalled[0]);
Assert.True(independentCalled[1]);
},
() =>
{
rootCalled[0] = rootCalled[1] = false;
midCalled[0] = midCalled[1] = false;
dependantCalled[0] = dependantCalled[1] = false;
independentCalled[0] = independentCalled[1] = false;
});
}
public void ShouldOrderObjectDependencyBeforeDependant()
{
bool rootCalled = false, dependantCalled = false;
var root = new TestDependant1(() => rootCalled = true);
var dependant = new TestDependant2(() =>
{
Assert.True(rootCalled);
dependantCalled = true;
}).Requires(root);
RunTest(new TestDependant[] { root, dependant },
c => Assert.True(dependantCalled),
() => rootCalled = dependantCalled = false);
}
public void ShouldOrderTypeDependencyBeforeDependant()
{
// similar to above, except the dependency is expressed as a type dependency
bool rootCalled = false, dependantCalled = false;
var root = new TestDependant1(() => rootCalled = true);
var dependant = new TestDependant2(() =>
{
Assert.True(rootCalled);
dependantCalled = true;
}).RequiresAny(typeof(TestDependant1));
RunTest(new TestDependant[] { root, dependant },
c => Assert.True(dependantCalled),
() => rootCalled = dependantCalled = false);
}
public void ShouldOrderTransitiveObjectDependencyBeforeDependants()
{
bool rootCalled = false, midCalled = false, dependantCalled = false;
var root = new TestDependant1(() => rootCalled = true);
var mid = new TestDependant2(() =>
{
Assert.True(rootCalled);
midCalled = true;
}).Requires(root);
var dependant = new TestDependant3(() =>
{
Assert.True(midCalled);
dependantCalled = true;
}).Requires(mid);
RunTest(new TestDependant[] { root, mid, dependant },
c => Assert.True(dependantCalled),
() => rootCalled = midCalled = dependantCalled = false);
}
public void ShouldOrderTransitiveTypeDependencyBeforeDependants()
{
// same as above, but this time the dependencies are expressed as
// type dependencies. Therefore dependant should inherit a dependency
// on root via its type dependency on TestDependant2
bool rootCalled = false, midCalled = false, dependantCalled = false;
var root = new TestDependant1(() => rootCalled = true);
var mid = new TestDependant2(() =>
{
Assert.True(rootCalled);
midCalled = true;
}).RequiresAny(typeof(TestDependant1));
var dependant = new TestDependant3(() =>
{
Assert.True(midCalled);
dependantCalled = true;
}).RequiresAny(typeof(TestDependant2));
RunTest(new TestDependant[] { root, mid, dependant },
c => Assert.True(dependantCalled),
() => rootCalled = midCalled = dependantCalled = false);
}