public void PyramidMatchesRules_Transform_IdenticalPyramidReturned()
{
//Arrange
var pyramid = CreateTestPyramid();
var checker = new Mock <IPyramidPathRuleChecker <int> >();
checker.Setup(m => m.IsValidPath(It.IsAny <int>(), It.IsAny <int>())).Returns(true);
var applier = new PyramidRuleApplier <int>(checker.Object);
//Act
var result = applier.TransformPyramid(pyramid);
//Assert
Assert.AreEqual(pyramid, result);
}
public void UpperPathsDoNotMatchRules_Transform_UnaccesiblePathsNotChecked()
{
//Arrange
var pyramid = CreateTestPyramid();
var checker = new Mock <IPyramidPathRuleChecker <int> >();
checker.Setup(m => m.IsValidPath(It.IsAny <int>(), It.IsAny <int>())).Returns(false);
var applier = new PyramidRuleApplier <int>(checker.Object);
//Act
var result = applier.TransformPyramid(pyramid);
//Assert
Assert.AreEqual(new Pyramid <int>(1), result);
checker.Verify(m => m.IsValidPath(1, 2), Times.Once);
checker.Verify(m => m.IsValidPath(1, 3), Times.Once);
checker.VerifyNoOtherCalls();
}
public void SomePathsDoNotMatchRules_Transform_NotMatchingPathsNotInReturnedPyramid()
{
//Arrange
var pyramid = CreateTestPyramid();
var p3_2 = new Pyramid <int>(7);
var p3_3 = new Pyramid <int>(6);
var p2_1 = new Pyramid <int>(2, p3_2);
var p2_2 = new Pyramid <int>(3, p3_3);
var expectedResult = new Pyramid <int>(p2_1, 1, p2_2);
var checker = new Mock <IPyramidPathRuleChecker <int> >();
checker.Setup(m => m.IsValidPath(It.IsAny <int>(), It.IsAny <int>()))
.Returns((int val1, int val2) => val1 + val2 < 10);
var applier = new PyramidRuleApplier <int>(checker.Object);
//Act
var result = applier.TransformPyramid(pyramid);
//Assert
Assert.AreEqual(expectedResult, result);
}
