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// Copyright (c) AlphaSierraPapa for the SharpDevelop Team (for details please see \doc\copyright.txt)
// This code is distributed under the GNU LGPL (for details please see \doc\license.txt)
using System;
using System.IO;
using NUnit.Framework;
using ICSharpCode.NRefactory.VB.Parser;
using ICSharpCode.NRefactory.VB.Ast;
namespace ICSharpCode.NRefactory.VB.Tests.Ast
{
[TestFixture]
public class IfElseStatementTests
{
#region VB.NET
[Test]
public void VBNetSimpleIfStatementTest()
{
IfElseStatement ifElseStatement = ParseUtil.ParseStatement<IfElseStatement>("If True THEN END");
Assert.IsFalse(ifElseStatement.Condition.IsNull);
Assert.IsTrue(ifElseStatement.TrueStatement.Count == 1, "true count != 1:" + ifElseStatement.TrueStatement.Count);
Assert.IsTrue(ifElseStatement.FalseStatement.Count == 0, "false count != 0:" + ifElseStatement.FalseStatement.Count);
Assert.IsTrue(ifElseStatement.TrueStatement[0] is EndStatement, "Statement was: " + ifElseStatement.TrueStatement[0]);
}
[Test]
public void VBNetSimpleIfStatementTest2()
{
IfElseStatement ifElseStatement = ParseUtil.ParseStatement<IfElseStatement>("If True THEN\n END\n END IF");
Assert.IsFalse(ifElseStatement.Condition.IsNull);
Assert.IsTrue(ifElseStatement.TrueStatement.Count == 1, "true count != 1:" + ifElseStatement.TrueStatement.Count);
Assert.IsTrue(ifElseStatement.FalseStatement.Count == 0, "false count != 0:" + ifElseStatement.FalseStatement.Count);
Assert.IsTrue(ifElseStatement.TrueStatement[0] is BlockStatement, "Statement was: " + ifElseStatement.TrueStatement[0]);
}
// test for SD2-1201
[Test]
public void VBNetIfStatementLocationTest()
{
IfElseStatement ifElseStatement = ParseUtil.ParseStatement<IfElseStatement>("If True THEN\n" +
"DoIt()\n" +
"ElseIf False Then\n" +
"DoIt()\n" +
"End If");
Assert.AreEqual(3, (ifElseStatement.StartLocation).Line);
Assert.AreEqual(7, (ifElseStatement.EndLocation).Line);
Assert.AreEqual(5, (ifElseStatement.ElseIfSections[0].StartLocation).Line);
Assert.AreEqual(6, (ifElseStatement.ElseIfSections[0].EndLocation).Line);
Assert.IsNotNull(ifElseStatement.ElseIfSections[0].Parent);
}
[Test]
public void VBNetElseIfStatementTest()
{
IfElseStatement ifElseStatement = ParseUtil.ParseStatement<IfElseStatement>("If True THEN\n" +
"END\n" +
"ElseIf False Then\n" +
"Stop\n" +
"End If");
Assert.IsFalse(ifElseStatement.Condition.IsNull);
Assert.IsTrue(ifElseStatement.TrueStatement.Count == 1, "true count != 1:" + ifElseStatement.TrueStatement.Count);
Assert.IsTrue(ifElseStatement.FalseStatement.Count == 0, "false count != 0:" + ifElseStatement.FalseStatement.Count);
Assert.IsFalse((bool)(ifElseStatement.ElseIfSections[0].Condition as PrimitiveExpression).Value);
Assert.IsTrue(ifElseStatement.TrueStatement[0] is BlockStatement, "Statement was: " + ifElseStatement.TrueStatement[0]);
Assert.IsTrue(ifElseStatement.ElseIfSections[0].EmbeddedStatement.Children[0] is StopStatement, "Statement was: " + ifElseStatement.ElseIfSections[0].EmbeddedStatement.Children[0]);
}
[Test]
public void VBNetElse_IfStatementTest()
{
IfElseStatement ifElseStatement = ParseUtil.ParseStatement<IfElseStatement>("If True THEN\n" +
"END\n" +
"Else If False Then\n" +
"Stop\n" +
"End If");
Assert.IsFalse(ifElseStatement.Condition.IsNull);
Assert.IsTrue(ifElseStatement.TrueStatement.Count == 1, "true count != 1:" + ifElseStatement.TrueStatement.Count);
Assert.IsTrue(ifElseStatement.FalseStatement.Count == 0, "false count != 0:" + ifElseStatement.FalseStatement.Count);
Assert.IsFalse((bool)(ifElseStatement.ElseIfSections[0].Condition as PrimitiveExpression).Value);
Assert.IsTrue(ifElseStatement.TrueStatement[0] is BlockStatement, "Statement was: " + ifElseStatement.TrueStatement[0]);
Assert.IsTrue(ifElseStatement.ElseIfSections[0].EmbeddedStatement.Children[0] is StopStatement, "Statement was: " + ifElseStatement.ElseIfSections[0].EmbeddedStatement.Children[0]);
}
[Test]
public void VBNetMultiStatementIfStatementTest()
{
IfElseStatement ifElseStatement = ParseUtil.ParseStatement<IfElseStatement>("If True THEN Stop : b");
Assert.IsFalse(ifElseStatement.Condition.IsNull);
Assert.AreEqual(2, ifElseStatement.TrueStatement.Count, "true count");
Assert.AreEqual(0, ifElseStatement.FalseStatement.Count, "false count");
Assert.IsTrue(ifElseStatement.TrueStatement[0] is StopStatement);
Assert.IsTrue(ifElseStatement.TrueStatement[1] is ExpressionStatement);
}
[Test]
public void VBNetMultiStatementIfStatementWithEndStatementTest()
{
IfElseStatement ifElseStatement = ParseUtil.ParseStatement<IfElseStatement>("If True THEN Stop : End : b");
Assert.IsFalse(ifElseStatement.Condition.IsNull);
Assert.AreEqual(3, ifElseStatement.TrueStatement.Count, "true count");
Assert.AreEqual(0, ifElseStatement.FalseStatement.Count, "false count");
Assert.IsTrue(ifElseStatement.TrueStatement[0] is StopStatement);
Assert.IsTrue(ifElseStatement.TrueStatement[1] is EndStatement);
Assert.IsTrue(ifElseStatement.TrueStatement[2] is ExpressionStatement);
}
[Test]
public void VBNetIfWithEmptyElseTest()
{
IfElseStatement ifElseStatement = ParseUtil.ParseStatement<IfElseStatement>("If True THEN a Else");
Assert.IsFalse(ifElseStatement.Condition.IsNull);
Assert.AreEqual(1, ifElseStatement.TrueStatement.Count, "true count");
Assert.AreEqual(0, ifElseStatement.FalseStatement.Count, "false count");
}
[Test]
public void VBNetIfWithMultipleColons()
{
IfElseStatement ifElseStatement = ParseUtil.ParseStatement<IfElseStatement>("If True THEN a : : b");
Assert.IsFalse(ifElseStatement.Condition.IsNull);
Assert.AreEqual(2, ifElseStatement.TrueStatement.Count, "true count");
Assert.AreEqual(0, ifElseStatement.FalseStatement.Count, "false count");
}
[Test]
public void VBNetIfWithSingleLineElse()
{
// This isn't legal according to the VB spec, but the MS VB compiler seems to allow it.
IfElseStatement ifElseStatement = ParseUtil.ParseStatement<IfElseStatement>("If True THEN\n" +
" x()\n" +
"Else y()\n" +
"End If");
Assert.IsFalse(ifElseStatement.Condition.IsNull);
Assert.AreEqual(1, ifElseStatement.TrueStatement.Count, "true count");
Assert.AreEqual(1, ifElseStatement.FalseStatement.Count, "false count");
}
#endregion
}
}
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