public void ValidArguments_Run_ProducesLadderFile()
{
//setup
var wordLadderRunner = new WordLadderRunner(fileIOMock.Object, grapgBuilderMock.Object, ladderBuilderMock.Object);
var args = new string[] { "dictionary.txt", "spin", "spat", ladderFileName };
ladderBuilderMock.Setup <Dictionary <string, string> >(s => s.FindDistances(It.IsAny <string>(),
It.IsAny <string>(),
It.Is <Dictionary <string, List <string> > >(d => d == graph))).Returns(distanceTable);
ladderBuilderMock.Setup <List <string> >(s => s.BuildPath(It.IsAny <string>(),
It.IsAny <string>(),
It.Is <Dictionary <string, string> >(d => d == distanceTable))).Returns(path);
grapgBuilderMock.Setup <Dictionary <string, List <string> > >(s => s.BuildGraph(It.IsAny <List <string> >()))
.Returns(graph);
fileIOMock.Setup <List <string> >(s => s.ParseFile(It.IsAny <string>())).Returns(ShortWordList);
fileIOMock.Setup <bool>(s => s.SaveLadder(It.Is <List <string> >(d => d == path), It.Is <string>(d => d == ladderFileName)))
.Returns(true);
using (var consoleoutput = new ConsoleOutput())
{
//run
wordLadderRunner.Run(args);
//test
consoleoutput.GetOuput().Contains($"Saved the word ladder to {ladderFileName}.").Should().BeTrue();
((List <string>)fileIOMock.Invocations[1].Arguments[0]).Should().BeEquivalentTo(path);
((string)fileIOMock.Invocations[1].Arguments[1]).Should().Be(ladderFileName);
}
}
public void GivenThrreeArguments_Run_GivesUsageMessage()
{
//setup
var wordLadderRunner = new WordLadderRunner(fileIOMock.Object, grapgBuilderMock.Object, ladderBuilderMock.Object);
var args = new string[] { "cat", "dog", "dictionary.txt" };
using (var consoleoutput = new ConsoleOutput())
{
//run
wordLadderRunner.Run(args);
//test
consoleoutput.GetOuput().Contains("Only 3 arguments supplied on the command line.").Should().BeTrue();
consoleoutput.GetOuput().Contains("Please use: WordLadder DictionaryFile StartWord EndWord ResultFile").Should().BeTrue();
}
}