public void TestNavigation() {
rootNode = rootNode.AsSubdivision();
ProductBrand brandGoogle = ProductDimensions.CreateBrand("google");
ProductBrand brandOther = ProductDimensions.CreateBrand(null);
ProductCanonicalCondition conditionNew =
ProductDimensions.CreateCanonicalCondition(ProductCanonicalConditionCondition.NEW);
ProductCanonicalCondition conditionUsed =
ProductDimensions.CreateCanonicalCondition(ProductCanonicalConditionCondition.USED);
ProductCanonicalCondition conditionOther = ProductDimensions.CreateCanonicalCondition();
// Build up the brand = Google node under the root.
ProductPartitionNode brandGoogleNode = rootNode.AddChild(brandGoogle).AsSubdivision();
brandGoogleNode.AddChild(conditionNew);
brandGoogleNode.AddChild(conditionUsed);
brandGoogleNode.AddChild(conditionOther);
Assert.True(brandGoogleNode.HasChild(conditionNew),
"HasChild should return true for existing child dimension.");
Assert.AreSame(brandGoogleNode, brandGoogleNode.GetChild(conditionNew).Parent,
"parent->GetChild->getParent should return parent.");
Assert.True(brandGoogleNode.HasChild(conditionUsed),
"HasChild should return true for existing child dimension.");
Assert.AreSame(brandGoogleNode, brandGoogleNode.GetChild(conditionUsed).Parent,
"parent->GetChild->getParent should return parent.");
Assert.True(brandGoogleNode.HasChild(conditionOther),
"HasChild should return true for existing child dimension.");
Assert.AreSame(brandGoogleNode, brandGoogleNode.GetChild(conditionOther).Parent,
"parent->GetChild->getParent should return parent.");
// Build up the brand = null (other) node under the root.
ProductPartitionNode brandOtherNode = rootNode.AddChild(brandOther).AsSubdivision();
brandOtherNode.AddChild(conditionNew);
Assert.True(brandOtherNode.HasChild(conditionNew),
"HasChild should return true for existing child dimension.");
Assert.AreSame(brandOtherNode, brandOtherNode.GetChild(conditionNew).Parent,
"parent->GetChild->getParent should return parent.");
Assert.False(brandOtherNode.HasChild(conditionUsed),
"HasChild should return false for nonexistent child dimension.");
Assert.False(brandOtherNode.HasChild(conditionOther),
"HasChild should return false for nonexistent child dimension.");
brandOtherNode.AddChild(conditionOther);
Assert.True(brandOtherNode.HasChild(conditionOther),
"HasChild should return true for existing child dimension.");
Assert.AreSame(brandOtherNode, brandOtherNode.GetChild(conditionOther).Parent,
"parent->GetChild->getParent should return parent.");
// Remove one of the children of brand = null.
brandOtherNode.RemoveChild(conditionOther);
Assert.False(brandOtherNode.HasChild(conditionOther),
"HasChild should return false for a removed child dimension.");
// Remove the rest of the children of brand = null.
brandOtherNode.RemoveAllChildren();
Assert.False(brandOtherNode.HasChild(conditionNew),
"HasChild should return false for any removed child dimension.");
Assert.False(brandOtherNode.HasChild(conditionUsed),
"HasChild should return false for any removed child dimension.");
}
