public void GetDepth_NullNode_ArgumentNullExceptionThrown() { // Create a valid ITreeWalker. NodeWalker <int> walker = new NodeWalker <int>(); // Assert that 'GetDepth' throws an 'ArgumentNullException' when the node is null. Assert.Throws <ArgumentNullException>("node", () => walker.GetDepth(null)); }
public void GetDepth() { // Get a valid tree. var tree = TestTreeFactory.GetSimpleTree(); // Get a valid ITreeWalker. NodeWalker <int> walker = new NodeWalker <int>(); // For each node in the tree assert that 'GetDepth' returns the correct elements. Assert.Equal( 0, walker.GetDepth(tree)); Assert.Equal( 1, walker.GetDepth(tree[0])); Assert.Equal( 2, walker.GetDepth(tree[0][0])); Assert.Equal( 2, walker.GetDepth(tree[0][1])); Assert.Equal( 1, walker.GetDepth(tree[1])); Assert.Equal( 2, walker.GetDepth(tree[1][0])); Assert.Equal( 3, walker.GetDepth(tree[1][0][0])); }
public void GetDepth_NullWalker_ArgumentNullExceptionThrown() { // Get a valid tree. var tree = TestTreeFactory.GetSimpleTree(); // Create a null ITreeWalker. NodeWalker <int> walker = null; // Assert that 'GetDepth' throws an 'ArgumentNullException' when the tree walker // is null. Assert.Throws <ArgumentNullException>("walker", () => walker.GetDepth(tree)); }