319 lines
11 KiB
C#

using System;
using System.Collections.Generic;
using System.Linq;
using Microsoft.VisualStudio.TestTools.UnitTesting;
using Moq;
using ZoneCodeGenerator.Domain;
using ZoneCodeGenerator.Parsing;
using ZoneCodeGenerator.Parsing.C_Header;
using ZoneCodeGenerator.Parsing.C_Header.Blocks;
using ZoneCodeGenerator.Parsing.C_Header.Tests;
using ZoneCodeGenerator.Parsing.Testing;
namespace ZoneCodeGeneratorTests.Parsing.C_Header.Tests
{
[TestClass]
public class TestEnumMemberTest
{
private Mock<IHeaderParserState> parserStateMock;
private Mock<BlockEnum> enumMock;
private EnumMember addedEnumMember;
private Mock<ILexer> lexerMock;
private int tokenOffset;
private List<string> tokens;
[TestInitialize]
public void Setup()
{
parserStateMock = new Mock<IHeaderParserState>();
enumMock = new Mock<BlockEnum>(parserStateMock.Object, "testenum", DataTypeBaseType.INT, false);
addedEnumMember = null;
parserStateMock.SetupGet(state => state.CurrentBlock).Returns(() => enumMock.Object);
enumMock.Setup(_enum => _enum.AddMember(It.IsAny<EnumMember>()))
.Callback((EnumMember member) => addedEnumMember = member);
tokenOffset = 0;
tokens = new List<string>();
lexerMock = new Mock<ILexer>();
lexerMock.Setup(lexer => lexer.PeekToken(It.IsAny<int>()))
.Returns((int index) => tokens.ElementAtOrDefault(index + tokenOffset));
lexerMock.Setup(lexer => lexer.NextToken())
.Returns(() => tokens.ElementAtOrDefault(tokenOffset++));
lexerMock.Setup(lexer => lexer.SkipTokens(It.IsAny<int>()))
.Callback((int count) => tokenOffset += count);
}
[TestMethod]
public void EnsureAcceptsSimpleEnumEntry()
{
tokens.AddRange(new List<string>
{
"asdf", ","
});
var test = new TestEnumMember();
Assert.AreEqual(TokenTestResult.Match, test.PerformTest(parserStateMock.Object, lexerMock.Object));
Assert.AreEqual(2, test.ConsumedTokenCount);
enumMock.Verify(_enum => _enum.AddMember(It.IsAny<EnumMember>()), Times.Once());
Assert.AreEqual("asdf", addedEnumMember.Name);
Assert.AreEqual(0L, addedEnumMember.Value);
}
[TestMethod]
public void EnsureAcceptsEntryWithSpecialCharacters()
{
tokens.AddRange(new List<string>
{
"$ASgF123__", ","
});
var test = new TestEnumMember();
Assert.AreEqual(TokenTestResult.Match, test.PerformTest(parserStateMock.Object, lexerMock.Object));
Assert.AreEqual(2, test.ConsumedTokenCount);
enumMock.Verify(_enum => _enum.AddMember(It.IsAny<EnumMember>()), Times.Once());
Assert.AreEqual("$ASgF123__", addedEnumMember.Name);
Assert.AreEqual(0L, addedEnumMember.Value);
}
[TestMethod]
public void EnsureRejectsWithDigitInTheBeginning()
{
tokens.AddRange(new List<string>
{
"123var", ","
});
var test = new TestEnumMember();
Assert.AreEqual(TokenTestResult.NoMatch, test.PerformTest(parserStateMock.Object, lexerMock.Object));
Assert.AreEqual(0, test.ConsumedTokenCount);
enumMock.Verify(_enum => _enum.AddMember(It.IsAny<EnumMember>()), Times.Never());
}
[TestMethod]
public void EnsureAcceptsEntryWithDecimalNumber()
{
tokens.AddRange(new List<string>
{
"leet", "=", "1337", ","
});
var test = new TestEnumMember();
Assert.AreEqual(TokenTestResult.Match, test.PerformTest(parserStateMock.Object, lexerMock.Object));
Assert.AreEqual(4, test.ConsumedTokenCount);
enumMock.Verify(_enum => _enum.AddMember(It.IsAny<EnumMember>()), Times.Once());
Assert.AreEqual("leet", addedEnumMember.Name);
Assert.AreEqual(1337L, addedEnumMember.Value);
}
[TestMethod]
public void EnsureAcceptsEntryWithHexadecimalNumber()
{
tokens.AddRange(new List<string>
{
"smoke", "=", "0x1a4", ","
});
var test = new TestEnumMember();
Assert.AreEqual(TokenTestResult.Match, test.PerformTest(parserStateMock.Object, lexerMock.Object));
Assert.AreEqual(4, test.ConsumedTokenCount);
enumMock.Verify(_enum => _enum.AddMember(It.IsAny<EnumMember>()), Times.Once());
Assert.AreEqual("smoke", addedEnumMember.Name);
Assert.AreEqual(420L, addedEnumMember.Value);
}
[TestMethod]
public void EnsureRejectsEntryWithoutName()
{
tokens.AddRange(new List<string>
{
","
});
var test = new TestEnumMember();
Assert.AreEqual(TokenTestResult.NoMatch, test.PerformTest(parserStateMock.Object, lexerMock.Object));
Assert.AreEqual(0, test.ConsumedTokenCount);
enumMock.Verify(_enum => _enum.AddMember(It.IsAny<EnumMember>()), Times.Never());
}
[TestMethod]
public void EnsureRejectsEntryWithoutNameButWithNumber()
{
tokens.AddRange(new List<string>
{
"=", "0", ","
});
var test = new TestEnumMember();
Assert.AreEqual(TokenTestResult.NoMatch, test.PerformTest(parserStateMock.Object, lexerMock.Object));
Assert.AreEqual(0, test.ConsumedTokenCount);
enumMock.Verify(_enum => _enum.AddMember(It.IsAny<EnumMember>()), Times.Never());
}
[TestMethod]
public void EnsurePicksNextNumberWhenNoneSpecified()
{
enumMock.Setup(_enum => _enum.GetNextEnumValue()).Returns(1337L);
tokens.AddRange(new List<string>
{
"asdf", ","
});
var test = new TestEnumMember();
Assert.AreEqual(TokenTestResult.Match, test.PerformTest(parserStateMock.Object, lexerMock.Object));
Assert.AreEqual(2, test.ConsumedTokenCount);
enumMock.Verify(_enum => _enum.AddMember(It.IsAny<EnumMember>()), Times.Once());
Assert.AreEqual("asdf", addedEnumMember.Name);
Assert.AreEqual(1337L, addedEnumMember.Value);
}
[TestMethod]
public void EnsureNeedsTerminator()
{
tokens.AddRange(new List<string>
{
"asdf", "nextentry"
});
var test = new TestEnumMember();
Assert.AreEqual(TokenTestResult.NoMatch, test.PerformTest(parserStateMock.Object, lexerMock.Object));
Assert.AreEqual(0, test.ConsumedTokenCount);
enumMock.Verify(_enum => _enum.AddMember(It.IsAny<EnumMember>()), Times.Never());
}
[TestMethod]
public void EnsureNeedsTerminatorEvenWithValueSpecified()
{
tokens.AddRange(new List<string>
{
"asdf", "=", "0", "nextentry"
});
var test = new TestEnumMember();
Assert.AreEqual(TokenTestResult.NoMatch, test.PerformTest(parserStateMock.Object, lexerMock.Object));
Assert.AreEqual(0, test.ConsumedTokenCount);
enumMock.Verify(_enum => _enum.AddMember(It.IsAny<EnumMember>()), Times.Never());
}
[TestMethod]
public void EnsureAcceptsLastEntryWithoutComma()
{
tokens.AddRange(new List<string>
{
"asdf", "}"
});
var test = new TestEnumMember();
Assert.AreEqual(TokenTestResult.Match, test.PerformTest(parserStateMock.Object, lexerMock.Object));
Assert.AreEqual(1, test.ConsumedTokenCount);
enumMock.Verify(_enum => _enum.AddMember(It.IsAny<EnumMember>()), Times.Once());
Assert.AreEqual("asdf", addedEnumMember.Name);
Assert.AreEqual(0L, addedEnumMember.Value);
}
[TestMethod]
public void EnsureAcceptsLastEntryWithoutCommaWithValueSpecified()
{
tokens.AddRange(new List<string>
{
"asdf", "=", "1336", "}"
});
var test = new TestEnumMember();
Assert.AreEqual(TokenTestResult.Match, test.PerformTest(parserStateMock.Object, lexerMock.Object));
Assert.AreEqual(3, test.ConsumedTokenCount);
enumMock.Verify(_enum => _enum.AddMember(It.IsAny<EnumMember>()), Times.Once());
Assert.AreEqual("asdf", addedEnumMember.Name);
Assert.AreEqual(1336L, addedEnumMember.Value);
}
[TestMethod]
public void EnsureAcceptsOtherEnumValues()
{
var previousMember = new EnumMember("prev", 1335);
parserStateMock.Setup(state => state.FindEnumMember("prev")).Returns(previousMember);
tokens.AddRange(new List<string>
{
"asdf", "=", "prev", ","
});
var test = new TestEnumMember();
Assert.AreEqual(TokenTestResult.Match, test.PerformTest(parserStateMock.Object, lexerMock.Object));
Assert.AreEqual(4, test.ConsumedTokenCount);
enumMock.Verify(_enum => _enum.AddMember(It.IsAny<EnumMember>()), Times.Once());
Assert.AreEqual("asdf", addedEnumMember.Name);
Assert.AreEqual(1335L, addedEnumMember.Value);
}
[TestMethod]
public void EnsureThrowsErrorIfPreviousEnumValueNotDeclared()
{
tokens.AddRange(new List<string>
{
"asdf", "=", "prev", ","
});
var test = new TestEnumMember();
Assert.ThrowsException<TestFailedException>(() => test.PerformTest(parserStateMock.Object, lexerMock.Object));
enumMock.Verify(_enum => _enum.AddMember(It.IsAny<EnumMember>()), Times.Never());
}
[TestMethod]
public void EnsureThrowsErrorIfTopBlockIsNotEnum()
{
var blockMock = new Mock<Block>(parserStateMock.Object, BlockType.None);
parserStateMock.SetupGet(state => state.CurrentBlock).Returns(blockMock.Object);
tokens.AddRange(new List<string>
{
"asdf", "=", "0", ","
});
var test = new TestEnumMember();
Assert.ThrowsException<Exception>(() => test.PerformTest(parserStateMock.Object, lexerMock.Object));
enumMock.Verify(_enum => _enum.AddMember(It.IsAny<EnumMember>()), Times.Never());
}
}
}