public void Execute_InvalidArguments_ThrowsException()
{
var graph = new Graph <char>();
var calculator = new RouteDistanceCalculator <char>(graph);
char[] route = null;
var result = calculator.Execute(route);
}
public void Execute_DifferentSourceAndDestination_CorrectResult(char [] route, int expectedResult)
{
var graph = TestUtils.BuildDefaultTestGraph();
var calculator = new RouteDistanceCalculator <char>(graph);
var result = calculator.Execute(route);
Assert.AreEqual(expectedResult, result);
}
public void Execute_EmptyRoute_CorrectResult()
{
var graph = new Graph <char>();
var calculator = new RouteDistanceCalculator <char>(graph);
var route = new char[] { };
var expectedResult = 0;
var result = calculator.Execute(route);
Assert.AreEqual(expectedResult, result);
}
public void Execute_SourceNotExists_DefaultResult()
{
var graph = new Graph <char>();
var calculator = new RouteDistanceCalculator <char>(graph);
var route = new char[] { 'A', 'B' };
var expectedResult = -1;
var result = calculator.Execute(route);
Assert.AreEqual(expectedResult, result);
}
public void Execute_EdgeNotExists_DefaultResult()
{
var graphBuilder = new DirectedGraphBuilder <char>();
graphBuilder.AddEdge('A', 'C', 5);
var calculator = new RouteDistanceCalculator <char>(graphBuilder.GetGraph());
var route = new char[] { 'A', 'B' };
var expectedResult = -1;
var result = calculator.Execute(route);
Assert.AreEqual(expectedResult, result);
}
private void RunTestCases1To5(Graph <char> graph)
{
var calculator = new RouteDistanceCalculator <char>(graph);
var routes = new char[][]
{
new char[] { 'A', 'B', 'C' },
new char[] { 'A', 'D' },
new char[] { 'A', 'D', 'C' },
new char[] { 'A', 'E', 'B', 'C', 'D' },
new char[] { 'A', 'E', 'D' }
};
for (int i = 0; i < routes.Length; i++)
{
var distance = calculator.Execute(routes[i]);
var result = distance != -1 ? distance.ToString() : "NO SUCH ROUTE";
OutputResult(i + 1, result);
}
}