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ExpressionParserTest.cs
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ExpressionParserTest.cs
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// Copyright (c) Microsoft Corporation. All rights reserved.
using System;
using System.Collections;
using System.Collections.Generic;
using System.Data;
using System.Diagnostics;
using System.Text;
using PInvoke.Parser;
using Xunit;
namespace PInvoke.Test
{
///<summary>
///This is a test class for PInvoke.Parser.ExpressionParser and is intended
///to contain all PInvoke.Parser.ExpressionParser Unit Tests
///</summary>
public class ExpressionParserTest
{
///<summary>
///A test for TryParse(ByVal String, ByRef PInvoke.Parser.ExpressionNode)
///</summary>
[Fact()]
public void Parse1()
{
ExpressionParser parser = new ExpressionParser();
ExpressionNode node = parser.Parse("1+1");
Assert.Equal(node.DisplayString, "+ (Left: 1)(Right: 1)");
}
[Fact()]
public void Parse2()
{
ExpressionParser parser = new ExpressionParser();
ExpressionNode node = parser.Parse("'c'");
Assert.Equal(node.DisplayString, "'c'");
}
[Fact()]
public void Parse3()
{
ExpressionParser parser = new ExpressionParser();
ExpressionNode node = parser.Parse("'c'+2");
Assert.Equal(node.DisplayString, "+ (Left: 'c')(Right: 2)");
}
/// <summary>
/// Basic math operators
/// </summary>
/// <remarks></remarks>
[Fact()]
public void ParseMathOperations()
{
ExpressionParser p = new ExpressionParser();
ExpressionNode node = default(ExpressionNode);
node = p.Parse("1+1");
Assert.Equal(node.DisplayString, "+ (Left: 1)(Right: 1)");
node = p.Parse("1-1");
Assert.Equal(node.DisplayString, "- (Left: 1)(Right: 1)");
node = p.Parse("1/1");
Assert.Equal(node.DisplayString, "/ (Left: 1)(Right: 1)");
node = p.Parse("1%1");
Assert.Equal(node.DisplayString, "% (Left: 1)(Right: 1)");
}
[Fact()]
public void ParseBooleanOperations()
{
ExpressionParser p = new ExpressionParser();
ExpressionNode node = default(ExpressionNode);
node = p.Parse("1&&1");
Assert.Equal(node.DisplayString, "&& (Left: 1)(Right: 1)");
node = p.Parse("1||1");
Assert.Equal(node.DisplayString, "|| (Left: 1)(Right: 1)");
}
[Fact()]
public void ParseBitwiseOperations()
{
ExpressionParser p = new ExpressionParser();
ExpressionNode node = default(ExpressionNode);
node = p.Parse("1|1");
Assert.Equal(node.DisplayString, "| (Left: 1)(Right: 1)");
node = p.Parse("1&1");
Assert.Equal(node.DisplayString, "& (Left: 1)(Right: 1)");
}
[Fact()]
public void Paren1()
{
ExpressionParser p = new ExpressionParser();
ExpressionNode node = default(ExpressionNode);
node = p.Parse("(1)");
Assert.Equal(node.DisplayString, "1");
node = p.Parse("( 1)");
Assert.Equal(node.DisplayString, "1");
}
[Fact()]
public void Paren2()
{
ExpressionParser p = new ExpressionParser();
ExpressionNode node = default(ExpressionNode);
node = p.Parse("1+(2+3)");
Assert.Equal(node.DisplayString, "+ (Left: 1)(Right: + (Left: 2)(Right: 3))");
node = p.Parse("(1+2)+3");
Assert.Equal(node.DisplayString, "+ (Left: + (Left: 1)(Right: 2))(Right: 3)");
}
[Fact()]
public void CallExpr1()
{
ExpressionParser p = new ExpressionParser();
ExpressionNode node = default(ExpressionNode);
node = p.Parse("defined(foo)");
Assert.Equal("defined (Left: foo)", node.DisplayString);
}
[Fact()]
public void CallExpr2()
{
ExpressionParser p = new ExpressionParser();
ExpressionNode node = default(ExpressionNode);
node = p.Parse("defined(foo, bar)");
Assert.Equal("defined (Left: foo)(Right: , (Left: bar))", node.DisplayString);
}
[Fact()]
public void CallExpr3()
{
ExpressionParser p = new ExpressionParser();
ExpressionNode node = default(ExpressionNode);
node = p.Parse("defined(foo, 1+1)");
Assert.Equal(node.DisplayString, "defined (Left: foo)(Right: , (Left: + (Left: 1)(Right: 1)))");
}
[Fact()]
public void Shift1()
{
ExpressionParser p = new ExpressionParser();
ExpressionNode node = default(ExpressionNode);
node = p.Parse("1>>2");
Assert.Equal(node.DisplayString, ">> (Left: 1)(Right: 2)");
}
[Fact()]
public void Shift2()
{
ExpressionParser p = new ExpressionParser();
ExpressionNode node = default(ExpressionNode);
node = p.Parse("1<<2");
Assert.Equal(node.DisplayString, "<< (Left: 1)(Right: 2)");
}
[Fact()]
public void Cast1()
{
ExpressionParser p = new ExpressionParser();
ExpressionNode node = default(ExpressionNode);
node = p.Parse("(FOO)1");
Assert.Equal(node.DisplayString, "FOO (Left: 1)");
}
[Fact()]
public void Cast2()
{
ExpressionParser p = new ExpressionParser();
ExpressionNode node = default(ExpressionNode);
node = p.Parse("(BAR)(42)");
Assert.Equal(node.DisplayString, "BAR (Left: 42)");
}
[Fact()]
public void Cast3()
{
ExpressionParser p = new ExpressionParser();
ExpressionNode node = default(ExpressionNode);
node = p.Parse("(FOO)(BAR)1");
Assert.Equal(node.DisplayString, "FOO (Left: BAR (Left: 1))");
}
[Fact()]
public void Complex1()
{
ExpressionParser p = new ExpressionParser();
ExpressionNode node = p.Parse("((WORD)((DWORD_PTR)(l) >> 16))");
Assert.Equal(node.DisplayString, "WORD (Left: DWORD_PTR (Left: >> (Left: l)(Right: 16)))");
}
[Fact()]
public void Negative1()
{
ExpressionParser p = new ExpressionParser();
ExpressionNode node = p.Parse("-1");
Assert.Equal(node.DisplayString, "- (Left: 1)");
}
[Fact()]
public void Negative2()
{
ExpressionParser p = new ExpressionParser();
ExpressionNode node = p.Parse("-0.1F");
Assert.Equal(node.DisplayString, "- (Left: 0.1F)");
}
}
}