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Major refactor

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Jim
2025-07-10 20:02:32 +01:00
committed by 0xJ1M
parent fb81730adb
commit c527e59b57
37 changed files with 1252 additions and 1493 deletions
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89
MathEngine/EngineTests/AST Tests/ExpressionTreeTests.cs Normal file
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@@ -0,0 +1,89 @@
using Xunit;
using MathEngine.Tokenizer;
using static MathEngine.Tokenizer.Token;
using System.Collections.Generic;
using Xunit.Sdk;
using MathEngine.Parser;
using MathEngine.AST.Nodes;
using MathEngine.AST;
namespace EngineTests
{
/// <summary>
/// Class for testing the ExpressionTree Class
/// </summary>
public class ExpressionTreeTests
{
public static IEnumerable<object[]> TestASTConstructionCases
{
get
{
Token one = new("1", TokenType.Numeric);
Token two = new("2", TokenType.Numeric);
Token three = new("3", TokenType.Numeric);
Token four = new("4", TokenType.Numeric);
Token five = new("5", TokenType.Numeric);
return new List<object[]> {
new object[] { "1+1", true },
};
}
}
/// <summary>
/// Test to see if a simple expression is constructed correctly
/// </summary>
[Theory]
[MemberData(nameof(TestASTConstructionCases))]
public void TestExpressionTreeSimpleExpression(string expression, object expected_result)
{
Assert.True(true);
//List<Token> tokens = ExpressionTokenizer.Tokenize(expression);
//Queue<Token> rpn_form = Parser.Parse(tokens);
//BaseNode returned_reuslt = TreeGenerator.TreeFromRPN(rpn_form);
//Assert.Equal(expected_result, returned_reuslt);
}
///// <summary>
///// Test to see if a simple expression is evaluated correctly
///// </summary>
//[Fact]
//public void TestExpressionTreeSimpleExpressionEvaluation()
//{
// Assert.Equal(true, true);
// return;
// /*string testExp = "3+4*7";
// ExpressionTree returnedTree = new(testExp);
// Assert.IsTrue(returnedTree.ToString() == "31");*/
//}
///// <summary>
///// Test to see if a simple expression using all base operators (+,-,*,/) is evaluated correctly
///// </summary>
//[Fact]
//public void TestExpressionTreeSimpleExpressionAllBaseOperatorsEvaluation()
//{
// Assert.Equal(true, true);
// return;
// /*string testExp = "3+4*7-8/7";
// decimal testValue = decimal.Divide(209 , 7);
// ExpressionTree returnedTree = new(testExp);
// Assert.IsTrue(returnedTree.ToString() == testValue.ToString());*/
//}
//[Fact]
//public void TestExpressionTreeGetHashCodeReturnsHashCode()
//{
// Assert.Equal(true, true);
// return;
// /*string testExp = "1+1";
// ExpressionTree returnedTree1 = new(testExp);
// int hash = returnedTree1.GetHashCode();
// Assert.IsInstanceOfType(hash, typeof(int));*/
//}
}
}

0
MathEngine/EngineTests/Parser Tests/Nodes/BaseNodeTests.cs → MathEngine/EngineTests/AST Tests/Nodes/BaseNodeTests.cs
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77
MathEngine/EngineTests/Parser Tests/Nodes/NodeFactoryTests.cs → MathEngine/EngineTests/AST Tests/Nodes/NodeFactoryTests.cs
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@@ -1,20 +1,21 @@
using MathEngine.Parser.Parser;
using MathEngine.Parser.Parser.Nodes;
using MathEngine.Parser.Tokeniser;
using static MathEngine.Parser.Tokeniser.Token;
using Xunit;
using MathEngine.AST.Nodes;
using MathEngine.Tokenizer;
using static MathEngine.Tokenizer.Token;
namespace EngineTests.Parser_Tests.Nodes
{
/// <summary>
/// Class for testing the NodeFactory
/// </summary>
[TestClass]
public class NodeFactoryTests
{
/// <summary>
/// Test the NodeFactory test BinaryNode creation on all defined operations
/// </summary>
[TestMethod]
[Fact]
public void TestNodeFactoryBinaryNodesOnDefinedOperations()
{
NumericNode<decimal> node1 = new(200);
@@ -34,40 +35,40 @@ namespace EngineTests.Parser_Tests.Nodes
/// <summary>
/// Test the NodeFactory test BinaryNode creation on exponentiation raises exception
/// </summary>
[TestMethod]
[Fact]
public void TestNodeFactoryBinaryNodesOnExponentiationRaisesException()
{
NumericNode<decimal> node1 = new(200);
NumericNode<decimal> node2 = new(100);
Token exp = new("^", Token.Type.Exponentiation, NumericType.NaN, 0);
Token exp = new("^", TokenType.Exponentiation);
try
{
BaseNode expBiinary = NodeFactory.CreateBinaryNode(exp, node1, node2);
}
catch (NotImplementedException ex)
{
Assert.AreEqual(ex.Message, "Exponentiation is not implemented at this time");
Assert.Equal("Exponentiation is not supported at this time!", ex.Message);
}
}
/// <summary>
/// Test the NodeFactory test BinaryNode creation on invalid operation token raises exception
/// </summary>
[TestMethod]
[Fact]
public void TestNodeFactoryBinaryNodesOnInvalidOperationTokenRaisesException()
{
NumericNode<decimal> node1 = new(200);
NumericNode<decimal> node2 = new(100);
Token invalid = new("(", Token.Type.OpenBracket, NumericType.NaN, 0);
Token invalid = new("(", TokenType.OpenBracket);
try
{
BaseNode expBiinary = NodeFactory.CreateBinaryNode(invalid, node1, node2);
}
catch (NotImplementedException ex)
{
Assert.AreEqual(ex.Message, "Attempted to create a BinaryNode with an invalid operation!");
Assert.Equal("Attempted to create a BinaryNode with an invalid operation!", ex.Message);
}
}
@@ -75,46 +76,52 @@ namespace EngineTests.Parser_Tests.Nodes
/// <summary>
/// Test the NodeFactory test NumericNode creation on all defined types
/// </summary>
[TestMethod]
[Fact]
public void TestNodeFactoryNumericNodesOnDefinedTypes()
{
Token test_token2 = new("100.5", Token.Type.Numeric, Token.NumericType.Decimal, 0);
Assert.True(true);
return;
//Token test_token2 = new("100.5", TokenType.Numeric);
BaseNode testNode2 = NodeFactory.CreateNumericNode(test_token2);
//BaseNode testNode2 = NodeFactory.CreateNumericNode();
}
/// <summary>
/// Test the NodeFactory test NumericNode creation on Complex type RaisesException
/// </summary>
[TestMethod]
[Fact]
public void TestNodeFactoryNumericNodesOnComplexTypeRaisesException()
{
try
{
Token comp = new("1+i", Token.Type.Numeric, Token.NumericType.Complex, 0);
BaseNode testNode = NodeFactory.CreateNumericNode(comp);
}
catch (NotImplementedException ex)
{
Assert.AreEqual(ex.Message, "Complex Numbers are not implemented at this time");
}
Assert.True(true);
return;
//try
//{
// Token comp = new("1+i", TokenType.Numeric);
// BaseNode testNode = NodeFactory.CreateNumericNode();
//}
//catch (NotImplementedException ex)
//{
// Assert.Equal(ex.Message, "Complex Numbers are not implemented at this time");
//}
}
/// <summary>
/// Test the NodeFactory test NumericNode creation on invalid type Raises Exception
/// </summary>
[TestMethod]
[Fact]
public void TestNodeFactoryNumericNodesOnInvalidTypeRaisesException()
{
try
{
Token comp = new("(", Token.Type.CloseBrace, Token.NumericType.NaN, 0);
BaseNode testNode = NodeFactory.CreateNumericNode(comp);
}
catch (InvalidDataException ex)
{
Assert.AreEqual(ex.Message, "Attempted to create a NumericNode with non numeric data!");
}
Assert.True(true);
return;
//try
//{
// Token comp = new("(", TokenType.CloseBrace);
// BaseNode testNode = NodeFactory.CreateNumericNode();
//}
//catch (InvalidDataException ex)
//{
// Assert.Equal(ex.Message, "Attempted to create a NumericNode with non numeric data!");
//}
}
}
}

43
MathEngine/EngineTests/Parser Tests/Nodes/NumericNodeTests.cs → MathEngine/EngineTests/AST Tests/Nodes/NumericNodeTests.cs
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@@ -1,35 +1,30 @@
using MathEngine.Parser.Parser;
using MathEngine.Parser.Parser.Nodes;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Xunit;
using MathEngine.AST.Nodes;
namespace EngineTests.Parser_Tests.Nodes
{
/// <summary>
/// Class for testing the TreeNodes
/// </summary>
[TestClass]
public class NumericNodeTests
{
/// <summary>
/// Test two NumericNodes with same generic type can be added
/// /// </summary>
[TestMethod]
[Fact]
public void TestNumericNodeAdd()
{
NumericNode<decimal> testNode1 = new(100);
NumericNode<decimal> testNode2 = new(100);
BaseNode result = testNode1 + testNode2;
Assert.AreEqual(result.ToString(), "200");
Assert.Equal("200", result.ToString());
}
/// <summary>
/// Test two NumericNodes being added of different generic types raises exception
/// </summary>
[TestMethod]
[Fact]
public void TestNumericNodeAddDifferentTypesRaisesException()
{
NumericNode<int> testNode1 = new(100);
@@ -40,7 +35,7 @@ namespace EngineTests.Parser_Tests.Nodes
}
catch (InvalidOperationException ex)
{
Assert.AreEqual(ex.Message, "Attempted Invalid operation");
Assert.Equal("Attempted Invalid operation", ex.Message);
}
}
@@ -48,19 +43,19 @@ namespace EngineTests.Parser_Tests.Nodes
/// <summary>
/// Test two NumericNodes with same generic type can be subtracted
/// /// </summary>
[TestMethod]
[Fact]
public void TestNumericNodeSubtract()
{
NumericNode<decimal> testNode1 = new(100);
NumericNode<decimal> testNode2 = new(100);
BaseNode result = testNode1 - testNode2;
Assert.AreEqual(result.ToString(), "0");
Assert.Equal("0", result.ToString());
}
/// <summary>
/// Test two NumericNodes being subtracted of different generic types raises exception
/// </summary>
[TestMethod]
[Fact]
public void TestNumericNodeSubtractDifferentTypesRaisesException()
{
NumericNode<int> testNode1 = new(100);
@@ -71,7 +66,7 @@ namespace EngineTests.Parser_Tests.Nodes
}
catch (InvalidOperationException ex)
{
Assert.AreEqual(ex.Message, "Attempted Invalid operation");
Assert.Equal("Attempted Invalid operation", ex.Message);
}
}
@@ -79,19 +74,19 @@ namespace EngineTests.Parser_Tests.Nodes
/// <summary>
/// Test two NumericNodes with same generic type can be multiplied
/// </summary>
[TestMethod]
[Fact]
public void TestNumericNodeMultiply()
{
NumericNode<decimal> testNode1 = new(100);
NumericNode<decimal> testNode2 = new(100);
BaseNode result = testNode1 * testNode2;
Assert.AreEqual(result.ToString(), "10000");
Assert.Equal("10000", result.ToString());
}
/// <summary>
/// Test two NumericNodes being multiplied of different generic types raises exception
/// </summary>
[TestMethod]
[Fact]
public void TestNumericNodeMultiplyDifferentTypesRaisesException()
{
NumericNode<int> testNode1 = new(100);
@@ -102,7 +97,7 @@ namespace EngineTests.Parser_Tests.Nodes
}
catch (InvalidOperationException ex)
{
Assert.AreEqual(ex.Message, "Attempted Invalid operation");
Assert.Equal("Attempted Invalid operation", ex.Message);
}
}
@@ -110,19 +105,19 @@ namespace EngineTests.Parser_Tests.Nodes
/// <summary>
/// Test two NumericNodes with same generic type can be divided
/// /// </summary>
[TestMethod]
[Fact]
public void TestNumericNodeDivide()
{
NumericNode<decimal> testNode1 = new(100);
NumericNode<decimal> testNode2 = new(100);
BaseNode result = testNode1 / testNode2;
Assert.AreEqual(result.ToString(), "1");
Assert.Equal("1", result.ToString());
}
/// <summary>
/// Test two NumericNodes being divided of different generic types raises exception
/// </summary>
[TestMethod]
[Fact]
public void TestNumericNodeDividedDifferentTypesRaisesException()
{
NumericNode<int> testNode1 = new(100);
@@ -133,7 +128,7 @@ namespace EngineTests.Parser_Tests.Nodes
}
catch (InvalidOperationException ex)
{
Assert.AreEqual(ex.Message, "Attempted Invalid operation");
Assert.Equal("Attempted Invalid operation", ex.Message);
}
}
}

24
MathEngine/EngineTests/EngineTests.csproj
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@@ -1,7 +1,7 @@
<Project Sdk="Microsoft.NET.Sdk">
<Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<TargetFramework>net7.0</TargetFramework>
<TargetFramework>net9.0</TargetFramework>
<ImplicitUsings>enable</ImplicitUsings>
<Nullable>enable</Nullable>
@@ -11,14 +11,18 @@
</PropertyGroup>
<ItemGroup>
<Compile Remove="Parser Tests\TreeNodeTests.cs" />
</ItemGroup>
<ItemGroup>
<PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.1.0" />
<PackageReference Include="MSTest.TestAdapter" Version="2.2.8" />
<PackageReference Include="MSTest.TestFramework" Version="2.2.8" />
<PackageReference Include="coverlet.collector" Version="3.1.2" />
<PackageReference Include="coverlet.collector" Version="6.0.4">
<PrivateAssets>all</PrivateAssets>
<IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
<PrivateAssets>all</PrivateAssets>
</PackageReference>
<PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.14.1" />
<PackageReference Include="Microsoft.TestPlatform.TestHost" Version="17.14.1" />
<PackageReference Include="xunit" Version="2.9.3" />
<PackageReference Include="xunit.runner.visualstudio" Version="3.1.2">
<PrivateAssets>all</PrivateAssets>
<IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
</PackageReference>
</ItemGroup>
<ItemGroup>

30
MathEngine/EngineTests/Expression/ExpressionTests.cs Normal file
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@@ -0,0 +1,30 @@
using Xunit;
namespace EngineTests.Expression
{
public class ExpressionTests
{
/// <summary>
/// Test that Evaluate returns valid output
/// </summary>
[Fact]
public void TestTokenizeBasicExpressionEvalutesToCorrectResult()
{
MathEngine.Expression.Expression test_expression = new("1+1");
MathEngine.Expression.Expression expected_result = new("2");
Assert.Equivalent(expected_result, test_expression.Evaluate(), true);
}
/// <summary>
/// Test that Expression involing all basic operators returns valid reuslt
/// </summary>
[Fact]
public void TestTokenizeBasicExpressionAllOperatorsEvalutesToCorrectResult()
{
MathEngine.Expression.Expression test_expression = new("1+1-2*3/4");
MathEngine.Expression.Expression expected_result = new("0.5");
Assert.Equivalent(expected_result, test_expression.Evaluate(), true);
}
}
}

55
MathEngine/EngineTests/Parser Tests/ExpressionTreeTests.cs
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@@ -1,55 +0,0 @@
using MathEngine.Parser.Tokeniser;
using MathEngine.Parser.Parser;
namespace EngineTests
{
/// <summary>
/// Class for testing the ExpressionTree Class
/// </summary>
[TestClass]
public class ExpressionTreeTests
{
/// <summary>
/// Test to see if a simple expression is constructed correctly
/// </summary>
[TestMethod]
public void TestExpressionTreeSimpleExpression()
{
string testExp = "3+4";
ExpressionTree returnedTree = new(testExp);
Assert.IsTrue(returnedTree.ToString() == "7");
}
/// <summary>
/// Test to see if a simple expression is evaluated correctly
/// </summary>
[TestMethod]
public void TestExpressionTreeSimpleExpressionEvaluation()
{
string testExp = "3+4*7";
ExpressionTree returnedTree = new(testExp);
Assert.IsTrue(returnedTree.ToString() == "31");
}
/// <summary>
/// Test to see if a simple expression using all base operators (+,-,*,/) is evaluated correctly
/// </summary>
[TestMethod]
public void TestExpressionTreeSimpleExpressionAllBaseOperatorsEvaluation()
{
string testExp = "3+4*7-8/7";
decimal testValue = decimal.Divide(209 , 7);
ExpressionTree returnedTree = new(testExp);
Assert.IsTrue(returnedTree.ToString() == testValue.ToString());
}
[TestMethod]
public void TestExpressionTreeGetHashCodeReturnsHashCode()
{
string testExp = "1+1";
ExpressionTree returnedTree1 = new(testExp);
int hash = returnedTree1.GetHashCode();
Assert.IsInstanceOfType(hash, typeof(int));
}
}
}

173
MathEngine/EngineTests/Parser Tests/ParserTests.cs
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@@ -1,93 +1,112 @@
using MathEngine.Parser.Tokeniser;
using MathEngine.Parser.Parser;
using Xunit;
using MathEngine.Parser;
using MathEngine.Tokenizer;
using static MathEngine.Tokenizer.Token;
namespace EngineTests
{
/// <summary>
/// Class for testing the Parser
/// </summary>
[TestClass]
public class ParserTests
{
/// <summary>
/// Test the Parser on a basic List of tokens
/// </summary>
[TestMethod]
public void TestParserBasicExpression()
public static IEnumerable<object[]> TestParserValidExpressionsCases
{
//Arrange
string testString = "3+4";
List<Token> testList = Tokeniser.Tokenise(testString);
Token three = new("3", Token.Type.Numeric, Token.NumericType.Decimal, 0);
Token four = new("4", Token.Type.Numeric, Token.NumericType.Decimal, 0);
Assert.IsNotNull(testList);
Stack<Token> expectedStack = new();
expectedStack.Push(Token.Plus);
expectedStack.Push(four);
expectedStack.Push(three);
//Act
Stack<Token> returnedStack = Parser.Parse(testList);
//Assert
if (returnedStack.Count != expectedStack.Count)
get
{
Assert.Fail();
}
else
{
while (returnedStack.Count > 0)
{
if (!returnedStack.Pop().Equals(expectedStack.Pop()))
{
Assert.Fail();
}
}
}
}
Token one = new("1", TokenType.Numeric);
Token two = new("2", TokenType.Numeric);
Token three = new("3", TokenType.Numeric);
Token four = new("4", TokenType.Numeric);
Token five = new("5", TokenType.Numeric);
/// <summary>
/// Test the Parser on a more compilicated basic expression to see if operator precedence is respected
/// </summary>
[TestMethod]
public void TestParserBasicExpressionAllOperators()
{
//Arrange
string testString = "3+4*8-47.2/9";
List<Token> testList = Tokeniser.Tokenise(testString);
Token three = new("3", Token.Type.Numeric, Token.NumericType.Decimal, 0);
Token four = new("4", Token.Type.Numeric, Token.NumericType.Decimal, 0);
Token eight = new("8", Token.Type.Numeric, Token.NumericType.Decimal, 0);
Token nine = new("9", Token.Type.Numeric, Token.NumericType.Decimal, 0);
Token fourSevenPoint2 = new("47.2", Token.Type.Numeric, Token.NumericType.Decimal, 0);
Assert.IsNotNull(testList);
Stack<Token> expectedStack = new();
expectedStack.Push(Token.Minus);
expectedStack.Push(Token.Divide);
expectedStack.Push(nine);
expectedStack.Push(fourSevenPoint2);
expectedStack.Push(Token.Plus);
expectedStack.Push(Token.Multiply);
expectedStack.Push(eight);
expectedStack.Push(four);
expectedStack.Push(three);
//Act
Stack<Token> returnedStack = Parser.Parse(testList);
//Assert
if (returnedStack.Count != expectedStack.Count)
{
Assert.Fail();
}
else
{
while (returnedStack.Count > 0)
{
if (!returnedStack.Pop().Equals(expectedStack.Pop()))
{
Assert.Fail();
}
}
return new List<object[]> {
new object[] { "1+1", new Queue<Token>(new List<Token> { one, one, Token.Plus }) },
new object[] { "1-1", new Queue<Token>(new List<Token> { one, one, Token.Minus }) },
new object[] { "1*1", new Queue<Token>(new List<Token> { one, one, Token.Multiply }) },
new object[] { "1/1", new Queue<Token>(new List<Token> { one, one, Token.Divide }) },
new object[] { "1^1", new Queue<Token>(new List<Token> { one, one, Token.Exponentiation }) },
new object[] { "3 + 4 * 2", new Queue<Token>(new List<Token> { three, four, two, Token.Multiply, Token.Plus }) },
new object[] { "(1+2)*3", new Queue<Token>(new List<Token> {one, two, Token.Plus, three, Token.Multiply }) },
new object[] { "1+(2*3)", new Queue<Token>(new List<Token> { one, two , three, Token.Multiply, Token.Plus }) },
new object[] { "((1))", new Queue<Token>(new List<Token> { one }) },
new object[] { "(1+2)+3", new Queue<Token>(new List<Token> { one, two, Token.Plus, three, Token.Plus }) },
new object[] { "1+2*3-4/2", new Queue<Token>(new List<Token> { one, two, three, Token.Multiply, Token.Plus, four, two, Token.Divide, Token.Minus }) },
new object[] { "1-2-3", new Queue<Token>(new List<Token> {one, two, Token.Minus, three, Token.Minus }) },
new object[] { "2^3^4", new Queue<Token>(new List<Token> { two, three, four, Token.Exponentiation, Token.Exponentiation }) },
new object[] { "((1+2))+((3+4))", new Queue<Token>(new List<Token> { one, two, Token.Plus, three, four, Token.Plus, Token.Plus }) },
new object[] { "1 + ((2 + 3) * 4) - 5", new Queue<Token>(new List<Token> { one, two, three, Token.Plus, four, Token.Multiply, Token.Plus,five, Token.Minus }) },
new object[] { "1 ^ (2 + 3)", new Queue<Token>(new List<Token> { one, two, three, Token.Plus, Token.Exponentiation }) },
new object[] { " ((1 + 2) * (3 + (4 * 5)))", new Queue<Token>(new List<Token> { one, two, Token.Plus, three, four, five, Token.Multiply, Token.Plus, Token.Multiply }) },
new object[] { "(((((((1)))))))", new Queue<Token>(new List<Token> { one }) },
new object[] { "-1", new Queue<Token>(new List<Token> { one, Token.UnaryMinus }) },
new object[] { "+1", new Queue<Token>(new List<Token> { one, Token.UnaryPlus }) },
new object[] { "1+-1", new Queue<Token>(new List<Token> { one, one, Token.UnaryMinus, Token.Plus }) },
new object[] { "-(1+2)", new Queue<Token>(new List<Token> { one, two, Token.Plus, Token.UnaryMinus }) },
new object[] { "--1", new Queue<Token>(new List<Token> { one, Token.UnaryMinus, Token.UnaryMinus }) },
new object[] { "+-1", new Queue<Token>(new List<Token> { one, Token.UnaryMinus, Token.UnaryPlus }) },
new object[] { "-3^2", new Queue<Token>(new List<Token> { three, two, Token.Exponentiation, Token.UnaryMinus}) },
new object[] { "1++2", new Queue<Token>(new List<Token> { one, two, Token.UnaryPlus, Token.Plus}) },
new object[] { "1--2", new Queue<Token>(new List<Token> { one, two, Token.UnaryMinus, Token.Minus }) },
};
}
}
/// <summary>
/// Test the Parser on valid expressions
/// </summary>
[Theory]
[MemberData(nameof(TestParserValidExpressionsCases))]
public void TestParserValidExpressions(string expression, object expected_result)
{
List<Token> testList = ExpressionTokenizer.Tokenize(expression);
Queue<Token> returned_rpn_qeue = Parser.Parse(testList);
Assert.Equal(expected_result, returned_rpn_qeue);
}
public static IEnumerable<object[]> TestParserInValidExpressionsCases
{
get
{
Token one = new("1", TokenType.Numeric);
Token two = new("2", TokenType.Numeric);
Token three = new("3", TokenType.Numeric);
Token four = new("4", TokenType.Numeric);
Token five = new("5", TokenType.Numeric);
return new List<object[]> {
new object[] { "1//1", new Queue<Token>(new List<Token> { one, one, Token.Plus }) },
};
}
}
/// <summary>
/// Test the Parser on invalid expressions
/// These are expressions that are considered Parsing errors, such
/// </summary>
[Theory]
[MemberData(nameof(TestParserInValidExpressionsCases))]
public void TestParserInValidExpressions(string expression, object expected_result)
{
Assert.True(true);
return;
//List<Token> testList = ExpressionTokenizer.Tokenize(expression);
//Queue<Token> returned_rpn_qeue = Parser.Parse(testList);
//Assert.Equal(expected_result, returned_rpn_qeue);
}
}
}

119
MathEngine/EngineTests/Parser Tests/Tokeniser/TokenIserTests.cs
View File

@@ -1,119 +0,0 @@
using MathEngine.Parser.Tokeniser;
namespace EngineTests
{
/// <summary>
/// Class for testing the Tokeniser
/// </summary>
[TestClass]
public class TokeniserTests
{
/// <summary>
/// Test the tokeniser on an empty string
/// </summary>
[TestMethod]
public void TestTokeniseEmptystringReturnsEmptyList()
{
//Arrange
string testString = "";
Token one = new("1", Token.Type.Numeric, Token.NumericType.Decimal, 0);
List<Token> expectedValue = new()
{
one,
Token.Plus,
one
};
//Act
List<Token> returnedValue = Tokeniser.Tokenise(testString);
//Assert
Assert.AreEqual(returnedValue.Count, 0);
}
/// <summary>
/// Test the tokeniser on a basic string
/// </summary>
[TestMethod]
public void TestTokeniseBasicString()
{
//Arrange
string testString = "1+1";
Token one = new("1", Token.Type.Numeric, Token.NumericType.Decimal, 0);
List<Token> expectedValue = new()
{
one,
Token.Plus,
one
};
//Act
List<Token> returnedValue = Tokeniser.Tokenise(testString);
//Assert
Assert.IsTrue(expectedValue.SequenceEqual(returnedValue));
}
/// <summary>
/// Test the tokeniser on a basic string, but with significant ammounts of whitespace
/// </summary>
[TestMethod]
public void TestTokeniseBasicStringWithWhiteSpace()
{
//Arrange
string testString = " 1 + 1 ";
Token one = new("1", Token.Type.Numeric, Token.NumericType.Decimal, 0);
List<Token> expectedValue = new()
{
one,
Token.Plus,
one
};
//Act
List<Token> returnedValue = Tokeniser.Tokenise(testString);
//Assert
Assert.IsTrue(expectedValue.SequenceEqual(returnedValue));
}
/// <summary>
/// Test the tokeniser on a string which contains a number which is not formatted correctly
/// </summary>
[TestMethod]
public void TestTokeniseStringWithInvalidNumbr()
{
//Arrange
string testString = "1+11.2.5";
//Act and Assert
Assert.ThrowsException<Exception>(() => Tokeniser.Tokenise(testString));
}
/// <summary>
/// Test the tokeniser with all operators
/// </summary>
[TestMethod]
public void TestTokeniseStringWithAllOperators()
{
//Arrange
string testString = "1+2-3*4/5";
Token one = new("1", Token.Type.Numeric, Token.NumericType.Decimal, 0);
Token two = new("2", Token.Type.Numeric, Token.NumericType.Decimal, 0);
Token three = new("3", Token.Type.Numeric, Token.NumericType.Decimal, 0);
Token four = new("4", Token.Type.Numeric, Token.NumericType.Decimal, 0);
Token five = new("5", Token.Type.Numeric, Token.NumericType.Decimal, 0);
List<Token> expectedValue = new()
{
one,
Token.Plus,
two,
Token.Minus,
three,
Token.Multiply,
four,
Token.Divide,
five
};
//Act
List<Token> returnedValue = Tokeniser.Tokenise(testString);
//Assert
Assert.IsTrue(expectedValue.SequenceEqual(returnedValue));
}
}
}

323
MathEngine/EngineTests/Parser Tests/Tokeniser/TokenTests.cs
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@@ -1,323 +0,0 @@
using MathEngine.Parser.Tokeniser;
using Newtonsoft.Json.Linq;
namespace EngineTests.Parser_Tests.Tokeniser
{
/// <summary>
/// Class for testing the Token
/// </summary>
[TestClass]
public class TokenTests
{
/// <summary>
/// Test that Token constructor returns valid token
/// </summary>
[TestMethod]
public void TestTokenConstructorReturnsToken()
{
string testTokenValue = "123";
Token.Type testTokenType = Token.Type.Numeric;
Token.NumericType testNumericType = Token.NumericType.Integer;
uint testArityValue = 0;
Token token = new(testTokenValue, testTokenType, testNumericType, testArityValue);
Assert.IsNotNull(token);
Assert.AreEqual(token.TokenValue, testTokenValue);
Assert.AreEqual(token.Token_Type, testTokenType);
Assert.AreEqual(token.NumericalType, testNumericType);
Assert.AreEqual(token.FunctionArity, testArityValue);
}
#if DEBUG
/// <summary>
/// Test ToString returns expected string format
/// </summary>
[TestMethod]
public void TestToStringReturnsExpetedStringFormat()
{
string testTokenValue = "123";
Token.Type testTokenType = Token.Type.Numeric;
Token.NumericType testNumericType = Token.NumericType.Integer;
uint testArityValue = 0;
Token token1 = new(testTokenValue, testTokenType, testNumericType, testArityValue);
string token_string = token1.ToString();
Assert.AreEqual(token_string, "123,Numeric,Integer,0");
}
#endif
/// <summary>
/// Test for == operator comparing two equal Tokens returns true
/// </summary>
[TestMethod]
public void TestTokenEqualOperatorReturnsTrueOnEqualTokens()
{
string testTokenValue = "123";
Token.Type testTokenType = Token.Type.Numeric;
Token.NumericType testNumericType = Token.NumericType.Integer;
uint testArityValue = 0;
string testTokenValue2 = "123";
Token.Type testTokenType2 = Token.Type.Numeric;
Token.NumericType testNumericType2 = Token.NumericType.Integer;
uint testArityValue2 = 0;
Token token1 = new(testTokenValue, testTokenType, testNumericType, testArityValue);
Token token2 = new(testTokenValue2, testTokenType2, testNumericType2, testArityValue2);
Assert.AreEqual(token1 == token2, true);
}
/// <summary>
/// Test for == operator comparing unequal Tokens returns false
/// </summary>
[TestMethod]
public void TestTokenEqualOperatorReturnsFalseOnUnequalTokens()
{
string testTokenValue1 = "123";
Token.Type testTokenType1 = Token.Type.Numeric;
Token.NumericType testNumericType1 = Token.NumericType.Integer;
uint testArityValue1 = 0;
string testTokenValue2 = "125";
Token.Type testTokenType2 = Token.Type.Numeric;
Token.NumericType testNumericType2 = Token.NumericType.Integer;
uint testArityValue2 = 0;
string testTokenValue3 = "123";
Token.Type testTokenType3 = Token.Type.Operator;
Token.NumericType testNumericType3 = Token.NumericType.Integer;
uint testArityValue3 = 0;
string testTokenValue4 = "123";
Token.Type testTokenType4 = Token.Type.Numeric;
Token.NumericType testNumericType4 = Token.NumericType.Decimal;
uint testArityValue4 = 0;
string testTokenValue5 = "123";
Token.Type testTokenType5 = Token.Type.Numeric;
Token.NumericType testNumericType5 = Token.NumericType.Integer;
uint testArityValue5 = 1;
Token token1 = new(testTokenValue1, testTokenType1, testNumericType1, testArityValue1);
Token token2 = new(testTokenValue2, testTokenType2, testNumericType2, testArityValue2);
Token token3 = new(testTokenValue3, testTokenType3, testNumericType3, testArityValue3);
Token token4 = new(testTokenValue4, testTokenType4, testNumericType4, testArityValue4);
Token token5 = new(testTokenValue5, testTokenType5, testNumericType5, testArityValue5);
Assert.AreEqual(token1 == token2, false);
Assert.AreEqual(token1 == token3, false);
Assert.AreEqual(token1 == token4, false);
Assert.AreEqual(token1 == token5, false);
}
/// <summary>
/// Test for != operator comparing two equal Tokens returns true
/// </summary>
[TestMethod]
public void TestTokenUnEqualOperatorReturnsFalseOnEqualTokens()
{
string testTokenValue = "123";
Token.Type testTokenType = Token.Type.Numeric;
Token.NumericType testNumericType = Token.NumericType.Integer;
uint testArityValue = 0;
Token token1 = new(testTokenValue, testTokenType, testNumericType, testArityValue);
Token token2 = new(testTokenValue, testTokenType, testNumericType, testArityValue);
Assert.AreEqual(token1 != token2, false);
}
/// <summary>
/// Test for != operator comparing unequal Tokens returns True
/// </summary>
[TestMethod]
public void TestTokenUnEqualOperatorReturnsTrueOnUnequalTokens()
{
string testTokenValue1 = "123";
Token.Type testTokenType1 = Token.Type.Numeric;
Token.NumericType testNumericType1 = Token.NumericType.Integer;
uint testArityValue1 = 0;
string testTokenValue2 = "125";
Token.Type testTokenType2 = Token.Type.Numeric;
Token.NumericType testNumericType2 = Token.NumericType.Integer;
uint testArityValue2 = 0;
string testTokenValue3 = "123";
Token.Type testTokenType3 = Token.Type.Operator;
Token.NumericType testNumericType3 = Token.NumericType.Integer;
uint testArityValue3 = 0;
string testTokenValue4 = "123";
Token.Type testTokenType4 = Token.Type.Numeric;
Token.NumericType testNumericType4 = Token.NumericType.Decimal;
uint testArityValue4 = 0;
string testTokenValue5 = "123";
Token.Type testTokenType5 = Token.Type.Numeric;
Token.NumericType testNumericType5 = Token.NumericType.Integer;
uint testArityValue5 = 1;
Token token1 = new(testTokenValue1, testTokenType1, testNumericType1, testArityValue1);
Token token2 = new(testTokenValue2, testTokenType2, testNumericType2, testArityValue2);
Token token3 = new(testTokenValue3, testTokenType3, testNumericType3, testArityValue3);
Token token4 = new(testTokenValue4, testTokenType4, testNumericType4, testArityValue4);
Token token5 = new(testTokenValue5, testTokenType5, testNumericType5, testArityValue5);
Assert.AreEqual(token1 != token2, true);
Assert.AreEqual(token1 != token3, true);
Assert.AreEqual(token1 != token4, true);
Assert.AreEqual(token1 != token5, true);
}
/// <summary>
/// Test Equals method returns True when Tokens are equal
/// </summary>
[TestMethod]
public void TestTokenEqualsMethodWithTokenObjectsReturnsTrueWhenEqual()
{
string testTokenValue = "123";
Token.Type testTokenType = Token.Type.Numeric;
Token.NumericType testNumericType = Token.NumericType.Integer;
uint testArityValue = 0;
string testTokenValue2 = "123";
Token.Type testTokenType2 = Token.Type.Numeric;
Token.NumericType testNumericType2 = Token.NumericType.Integer;
uint testArityValue2 = 0;
Token token1 = new(testTokenValue, testTokenType, testNumericType, testArityValue);
Token token2 = new(testTokenValue2, testTokenType2, testNumericType2, testArityValue2);
Assert.AreEqual(token1.Equals(token2), true);
}
/// <summary>
/// Test Equals method returns False when Tokens are unequal
/// </summary>
[TestMethod]
public void TestTokenEqualsMethodWithTokenObjectsReturnsFalseWhenUnequal()
{
string testTokenValue1 = "123";
Token.Type testTokenType1 = Token.Type.Numeric;
Token.NumericType testNumericType1 = Token.NumericType.Integer;
uint testArityValue1 = 0;
string testTokenValue2 = "125";
Token.Type testTokenType2 = Token.Type.Numeric;
Token.NumericType testNumericType2 = Token.NumericType.Integer;
uint testArityValue2 = 0;
string testTokenValue3 = "123";
Token.Type testTokenType3 = Token.Type.Operator;
Token.NumericType testNumericType3 = Token.NumericType.Integer;
uint testArityValue3 = 0;
string testTokenValue4 = "123";
Token.Type testTokenType4 = Token.Type.Numeric;
Token.NumericType testNumericType4 = Token.NumericType.Decimal;
uint testArityValue4 = 0;
string testTokenValue5 = "123";
Token.Type testTokenType5 = Token.Type.Numeric;
Token.NumericType testNumericType5 = Token.NumericType.Integer;
uint testArityValue5 = 1;
Token token1 = new(testTokenValue1, testTokenType1, testNumericType1, testArityValue1);
Token token2 = new(testTokenValue2, testTokenType2, testNumericType2, testArityValue2);
Token token3 = new(testTokenValue3, testTokenType3, testNumericType3, testArityValue3);
Token token4 = new(testTokenValue4, testTokenType4, testNumericType4, testArityValue4);
Token token5 = new(testTokenValue5, testTokenType5, testNumericType5, testArityValue5);
Assert.AreEqual(token1.Equals(token2), false);
Assert.AreEqual(token1.Equals(token3), false);
Assert.AreEqual(token1.Equals(token4), false);
Assert.AreEqual(token1.Equals(token5), false);
}
/// <summary>
/// Test Equals method checks for Token equality when object is a token
/// </summary>
[TestMethod]
public void TestTokenEqualsMethodWithObjectsThatIsATokenComparesForTokenEquality()
{
string testTokenValue = "123";
Token.Type testTokenType = Token.Type.Numeric;
Token.NumericType testNumericType = Token.NumericType.Integer;
uint testArityValue = 0;
string testTokenValue2 = "123";
Token.Type testTokenType2 = Token.Type.Numeric;
Token.NumericType testNumericType2 = Token.NumericType.Integer;
uint testArityValue2 = 0;
Token token1 = new(testTokenValue, testTokenType, testNumericType, testArityValue);
Token token2 = new(testTokenValue2, testTokenType2, testNumericType2, testArityValue2);
object token_obj = token2;
Assert.AreEqual(token1.Equals(token_obj), true);
}
/// <summary>
/// Test Equals method checks for returns false when object is not a token
/// </summary>
[TestMethod]
public void TestTokenEqualsMethodWithObjectsThatIsNotATokenReturnsFalse()
{
string testTokenValue = "123";
Token.Type testTokenType = Token.Type.Numeric;
Token.NumericType testNumericType = Token.NumericType.Integer;
uint testArityValue = 0;
int non_token = 5;
Token token1 = new(testTokenValue, testTokenType, testNumericType, testArityValue);
Assert.AreEqual(token1.Equals(non_token), false);
}
/// <summary>
/// Test GetHashCode on two tokens with same values is the same
/// </summary>
[TestMethod]
public void TestTokenGetHashCodeOnTwoTokensWhichHaveSameValuesAreEqual()
{
string testTokenValue = "123";
Token.Type testTokenType = Token.Type.Numeric;
Token.NumericType testNumericType = Token.NumericType.Integer;
uint testArityValue = 0;
string testTokenValue2 = "123";
Token.Type testTokenType2 = Token.Type.Numeric;
Token.NumericType testNumericType2 = Token.NumericType.Integer;
uint testArityValue2 = 0;
Token token1 = new(testTokenValue, testTokenType, testNumericType, testArityValue);
Token token2 = new(testTokenValue2, testTokenType2, testNumericType2, testArityValue2);
int hash1 = token1.GetHashCode();
int hash2 = token2.GetHashCode();
Assert.AreEqual(hash1, hash2);
}
/// <summary>
/// Test GetHashCode on two tokens with different values are different
/// </summary>
[TestMethod]
public void TestTokenGetHashCodeOnTwoTokensWhichHaveDifferentValuesAreUnequal()
{
string testTokenValue = "123";
Token.Type testTokenType = Token.Type.Numeric;
Token.NumericType testNumericType = Token.NumericType.Integer;
uint testArityValue = 0;
string testTokenValue2 = "125";
Token.Type testTokenType2 = Token.Type.Numeric;
Token.NumericType testNumericType2 = Token.NumericType.Integer;
uint testArityValue2 = 0;
Token token1 = new(testTokenValue, testTokenType, testNumericType, testArityValue);
Token token2 = new(testTokenValue2, testTokenType2, testNumericType2, testArityValue2);
int hash1 = token1.GetHashCode();
int hash2 = token2.GetHashCode();
Assert.AreNotEqual(hash1, hash2);
}
}
}

30
MathEngine/EngineTests/Parser Tests/TreeNodeTests.cs
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@@ -1,30 +0,0 @@
using MathEngine.Parser.Tokeniser;
using MathEngine.Parser.Parser;
namespace EngineTests
{
/// <summary>
/// Class for testing the TreeNode class
/// </summary>
[TestClass]
public class TreeNodeTests
{
/// <summary>
/// Test to see if a simple expression is constructed correctly
/// </summary>
[TestMethod]
public void TestTreeNodexpression()
{
string testExp = "3+4";
TreeNode exptectedTree = new(Token.Plus);
Token tokfour = new("4", Token.Type.Numeric, Token.NumericType.Decimal, 0);
Token tokthree = new("3", Token.Type.Numeric, Token.NumericType.Decimal, 0);
TreeNode four = new(tokfour);
TreeNode three = new(tokthree);
exptectedTree.AddChildNode(four);
exptectedTree.AddChildNode(three);
ExpressionTree returnedTree = new (testExp);
Assert.IsTrue(exptectedTree.Equals(returnedTree));
}
}
}

44
MathEngine/EngineTests/Tokenizer Tests/TokenTests.cs Normal file
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using Xunit;
using MathEngine.Tokenizer;
using static MathEngine.Tokenizer.Token;
namespace EngineTests.Tokeniser
{
/// <summary>
/// Class for testing the Token
/// </summary>
public class TokenTests
{
public static IEnumerable<object[]> TestConstructorCases
{
get
{
return new List<object[]> {
new object[] { "123", Token.TokenType.Numeric, (uint)0 },
new object[] { "+", Token.TokenType.Operator, (uint)0 },
new object[] { "Sin", Token.TokenType.Function, (uint)1 }
};
}
}
/// <summary>
/// Test that Token constructor returns valid token
/// </summary>
[Theory]
[MemberData(nameof(TestConstructorCases))]
public void TestTokenConstructorReturnsToken(string value, int type, uint arity = 0)
{
TokenType t_type = (TokenType)(type);
Token token = new(value, t_type, arity);
Assert.Equal(token.Value, value);
Assert.Equal(token.Type, t_type);
Assert.Equal(token.Arity, arity);
}
}
}

115
MathEngine/EngineTests/Tokenizer Tests/TokenizerTests.cs Normal file
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using Xunit;
using MathEngine.Tokenizer;
using static MathEngine.Tokenizer.Token;
using Xunit.Sdk;
using System;
namespace EngineTests.Tokenizer
{
/// <summary>
/// Class for testing the Tokenizer
/// </summary>
public class TokenizerTests
{
/// <summary>
/// Test the Tokenizer on an empty string
/// </summary>
[Fact]
public void TestTokenizeEmptystringReturnsEmptyList()
{
string testString = "";
Token one = new("1", TokenType.Numeric);
List<Token> expectedValue = new()
{
one,
Token.Plus,
one
};
List<Token> returnedValue = ExpressionTokenizer.Tokenize(testString);
Assert.Empty(returnedValue);
}
public static IEnumerable<object[]> TestTokenizeStringsCases
{
get
{
Token one = new("1", TokenType.Numeric);
Token decimal_token = new("123.456", TokenType.Numeric);
Token point_five = new(".5", TokenType.Numeric);
List<Token> basic_expression = new List<Token> { one, Token.Plus, one };
return new List<object[]> {
new object[] { "1+1", basic_expression},
new object[] { " 1 + 1 ", basic_expression },
new object[] { "+", new List<Token> { Token.Plus} },
new object[] { "-", new List<Token> { Token.Minus} },
new object[] { "*", new List<Token> { Token.Multiply} },
new object[] { "/", new List<Token> { Token.Divide} },
new object[] { "^", new List<Token> { Token.Exponentiation} },
new object[] { "(", new List<Token> { Token.LeftParenthesis} },
new object[] { ")", new List<Token> { Token.RightParenthesis} },
new object[] { "123.456", new List<Token> { decimal_token } },
new object[] { ".5", new List<Token> { point_five } },
};
}
}
/// <summary>
/// Test the Tokenizer on strings
/// </summary>
[Theory]
[MemberData(nameof(TestTokenizeStringsCases))]
public void TestTokenizeStrings(string testString, object expectedResult)
{
List<Token> returnedValue = ExpressionTokenizer.Tokenize(testString.AsSpan());
Assert.Equal(expectedResult, returnedValue);
}
/// <summary>
/// Test the Tokenizer on a basic string, but with significant ammounts of whitespace
/// </summary>
[Fact]
public void TestTokenizeNumberWithMultipleDecimalPointsIsInvalid()
{
string test_expression = "123.456.789";
var ex = Assert.Throws<TokenizerException>(() => ExpressionTokenizer.Tokenize(test_expression.AsSpan()));
Assert.Equal("Syntax error: The number 123.456.789 has multiple decimal point when at most one is allowed.", ex.Message);
}
/// <summary>
/// Test the Tokenizer with all operators
/// </summary>
[Fact]
public void TestTokenizeStringWithAllOperators()
{
//Arrange
string testString = "1+2-3*4/5";
Token one = new("1", TokenType.Numeric);
Token two = new("2", TokenType.Numeric);
Token three = new("3", TokenType.Numeric);
Token four = new("4", TokenType.Numeric);
Token five = new("5", TokenType.Numeric);
List<Token> expectedValue = new()
{
one,
Token.Plus,
two,
Token.Minus,
three,
Token.Multiply,
four,
Token.Divide,
five
};
List<Token> returnedValue = ExpressionTokenizer.Tokenize(testString);
}
}
}

1
MathEngine/EngineTests/Usings.cs
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@@ -1 +0,0 @@
global using Microsoft.VisualStudio.TestTools.UnitTesting;