using System.Collections.Generic; using System.Linq; using Microsoft.VisualStudio.TestTools.UnitTesting; using Moq; using ZoneCodeGenerator.Parsing; using ZoneCodeGenerator.Parsing.Matching; using ZoneCodeGenerator.Parsing.Matching.Matchers; namespace ZoneCodeGeneratorTests.Parsing.Matching.Matchers { [TestClass] public class MatcherLiteralTest { private Mock lexerMock; private int tokenOffset; private List tokens; private MatchingContext matchingContext; [TestInitialize] public void Setup() { tokenOffset = 0; tokens = new List(); lexerMock = new Mock(); lexerMock.Setup(lexer => lexer.PeekToken(It.IsAny())) .Returns((int index) => tokens.ElementAtOrDefault(index + tokenOffset)); lexerMock.Setup(lexer => lexer.NextToken()) .Returns(() => tokens.ElementAtOrDefault(tokenOffset++)); lexerMock.Setup(lexer => lexer.SkipTokens(It.IsAny())) .Callback((int count) => tokenOffset += count); matchingContext = new MatchingContext(lexerMock.Object, new Dictionary()); } [TestMethod] public void EnsureMatchingSameStringReturnsSuccessful() { tokens.AddRange(new List { "const" }); var matcher = new MatcherLiteral("const"); var result = matcher.Test(matchingContext, 0); Assert.IsTrue(result.Successful); Assert.AreEqual(1, result.ConsumedTokenCount); } [TestMethod] public void EnsureMatchingDifferentStringReturnsUnsuccessful() { tokens.AddRange(new List { "long" }); var matcher = new MatcherLiteral("const"); var result = matcher.Test(matchingContext, 0); Assert.IsFalse(result.Successful); Assert.AreEqual(0, result.ConsumedTokenCount); } [TestMethod] public void EnsureMatchingIsCaseSensitive() { tokens.AddRange(new List { "CONST" }); var matcher = new MatcherLiteral("const"); var result = matcher.Test(matchingContext, 0); Assert.IsFalse(result.Successful); Assert.AreEqual(0, result.ConsumedTokenCount); } [TestMethod] public void EnsureNamedMatchIsLiteralItself() { tokens.AddRange(new List { "const" }); var matcher = new MatcherLiteral("const").WithName("test_token"); var result = matcher.Test(matchingContext, 0); Assert.IsTrue(result.Successful); Assert.AreEqual(1, result.ConsumedTokenCount); Assert.AreEqual("const", result.NamedMatches["test_token"].ElementAtOrDefault(0)); } [TestMethod] public void EnsureMatcherWithMultipleLiteralTokensMatchesWhenAllAreFound() { tokens.AddRange(new List { "const", "range", "of", "turtles" }); var matcher = new MatcherLiteral("const", "range"); var result = matcher.Test(matchingContext, 0); Assert.IsTrue(result.Successful); Assert.AreEqual(2, result.ConsumedTokenCount); } [TestMethod] public void EnsureMatcherWithMultipleLiteralTokensDoesNotMatchWhenFirstTokenIsDifferent() { tokens.AddRange(new List { "static", "range", "of", "turtles" }); var matcher = new MatcherLiteral("const", "range"); var result = matcher.Test(matchingContext, 0); Assert.IsFalse(result.Successful); Assert.AreEqual(0, result.ConsumedTokenCount); } [TestMethod] public void EnsureMatcherWithMultipleLiteralTokensDoesNotMatchWhenSecondTokenIsDifferent() { tokens.AddRange(new List { "const", "element", "of", "turtles" }); var matcher = new MatcherLiteral("const", "const"); var result = matcher.Test(matchingContext, 0); Assert.IsFalse(result.Successful); Assert.AreEqual(0, result.ConsumedTokenCount); } [TestMethod] public void EnsureMakesCorrectUseOfTokenOffset() { tokens.AddRange(new List { "strawberry", "cake", "is", "yummy" }); var matcher = new MatcherLiteral("cake"); var result = matcher.Test(matchingContext, 1); Assert.IsTrue(result.Successful); Assert.AreEqual(1, result.ConsumedTokenCount); } [TestMethod] public void EnsureAddsTagWhenMatched() { tokens.AddRange(new List { "strawberry" }); var matcher = new MatcherLiteral("strawberry").WithTag("strawberryMatcher"); var result = matcher.Test(matchingContext, 0); Assert.IsTrue(result.Successful); Assert.AreEqual(1, result.ConsumedTokenCount); Assert.AreEqual(1, result.MatchedTags.Count); Assert.AreEqual("strawberryMatcher", result.MatchedTags[0]); } [TestMethod] public void EnsureDoesNotAddTagWhenNotMatched() { tokens.AddRange(new List { "apple" }); var matcher = new MatcherLiteral("strawberry").WithTag("strawberryMatcher"); var result = matcher.Test(matchingContext, 0); Assert.IsFalse(result.Successful); Assert.AreEqual(0, result.ConsumedTokenCount); Assert.AreEqual(0, result.MatchedTags.Count); } } }