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https://github.com/ckaczor/sqltoolsservice.git
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Add additional test cases (#125)
Test-only changes for code coverage. Please review the comment and I'll include the changes in the next iteration. * Add more tests * Add some more additional test cases
This commit is contained in:
Karl Burtram
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//
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// Copyright (c) Microsoft. All rights reserved.
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// Licensed under the MIT license. See LICENSE file in the project root for full license information.
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using System;
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using System.IO;
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using System.Linq;
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using Microsoft.SqlTools.ServiceLayer.Utility;
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using Microsoft.SqlTools.ServiceLayer.Workspace.Contracts;
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using Xunit;
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namespace Microsoft.SqlTools.ServiceLayer.Test.ServiceHost
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{
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/// <summary>
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/// ScriptFile test case
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/// </summary>
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public class ScriptFileTests
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{
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internal static object fileLock = new object();
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private static readonly string query =
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"SELECT * FROM sys.objects as o1" + Environment.NewLine +
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"SELECT * FROM sys.objects as o2" + Environment.NewLine +
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"SELECT * FROM sys.objects as o3" + Environment.NewLine;
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internal static ScriptFile GetTestScriptFile(string initialText = null)
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{
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if (initialText == null)
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{
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initialText = ScriptFileTests.query;
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}
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string ownerUri = System.IO.Path.GetTempFileName();
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// Write the query text to a backing file
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lock (fileLock)
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{
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System.IO.File.WriteAllText(ownerUri, initialText);
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}
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return new ScriptFile(ownerUri, ownerUri, initialText);
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}
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/// <summary>
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/// Validate GetLinesInRange with invalid range
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/// </summary>
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[Fact]
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public void GetLinesInRangeWithInvalidRangeTest()
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{
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ScriptFile scriptFile = GetTestScriptFile();
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bool exceptionRaised = false;
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try
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{
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scriptFile.GetLinesInRange(
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new BufferRange(
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new BufferPosition(1, 0),
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new BufferPosition(2, 0)));
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}
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catch (ArgumentOutOfRangeException)
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{
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exceptionRaised = true;
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}
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Assert.True(exceptionRaised, "ArgumentOutOfRangeException raised for invalid index");
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}
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/// <summary>
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/// Validate GetLinesInRange
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/// </summary>
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[Fact]
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public void GetLinesInRangeTest()
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{
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ScriptFile scriptFile = GetTestScriptFile();
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string id = scriptFile.Id;
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Assert.True(!string.IsNullOrWhiteSpace(id));
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BufferRange range =scriptFile.FileRange;
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Assert.Null(range);
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string[] lines = scriptFile.GetLinesInRange(
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new BufferRange(
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new BufferPosition(2, 1),
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new BufferPosition(2, 7)));
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Assert.True(lines.Length == 1, "One line in range");
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Assert.True(lines[0].Equals("SELECT"), "Range text is correct");
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string[] queryLines = query.Split('\n');
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string line = scriptFile.GetLine(2);
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Assert.True(queryLines[1].StartsWith(line), "GetLine text is correct");
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}
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[Fact]
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public void GetOffsetAtPositionTest()
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{
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ScriptFile scriptFile = GetTestScriptFile();
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int offset = scriptFile.GetOffsetAtPosition(2, 5);
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Assert.True(offset == 37, "Offset is at expected location");
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BufferPosition position = scriptFile.GetPositionAtOffset(offset);
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Assert.True(position.Line == 2 && position.Column == 5, "Position is at expected location");
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}
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[Fact]
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public void GetRangeBetweenOffsetsTest()
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{
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ScriptFile scriptFile = GetTestScriptFile();
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BufferRange range = scriptFile.GetRangeBetweenOffsets(
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scriptFile.GetOffsetAtPosition(2, 1),
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scriptFile.GetOffsetAtPosition(2, 7));
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Assert.NotNull(range);
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}
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[Fact]
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public void CanApplySingleLineInsert()
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{
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this.AssertFileChange(
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"This is a test.",
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"This is a working test.",
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new FileChange
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{
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Line = 1,
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EndLine = 1,
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Offset = 10,
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EndOffset = 10,
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InsertString = " working"
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});
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}
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[Fact]
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public void CanApplySingleLineReplace()
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{
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this.AssertFileChange(
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"This is a potentially broken test.",
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"This is a working test.",
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new FileChange
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{
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Line = 1,
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EndLine = 1,
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Offset = 11,
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EndOffset = 29,
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InsertString = "working"
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});
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}
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[Fact]
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public void CanApplySingleLineDelete()
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{
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this.AssertFileChange(
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"This is a test of the emergency broadcasting system.",
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"This is a test.",
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new FileChange
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{
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Line = 1,
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EndLine = 1,
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Offset = 15,
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EndOffset = 52,
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InsertString = ""
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});
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}
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[Fact]
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public void CanApplyMultiLineInsert()
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{
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this.AssertFileChange(
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"first\r\nsecond\r\nfifth",
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"first\r\nsecond\r\nthird\r\nfourth\r\nfifth",
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new FileChange
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{
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Line = 3,
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EndLine = 3,
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Offset = 1,
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EndOffset = 1,
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InsertString = "third\r\nfourth\r\n"
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});
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}
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[Fact]
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public void CanApplyMultiLineReplace()
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{
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this.AssertFileChange(
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"first\r\nsecoXX\r\nXXfth",
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"first\r\nsecond\r\nthird\r\nfourth\r\nfifth",
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new FileChange
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{
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Line = 2,
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EndLine = 3,
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Offset = 5,
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EndOffset = 3,
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InsertString = "nd\r\nthird\r\nfourth\r\nfi"
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});
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}
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[Fact]
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public void CanApplyMultiLineReplaceWithRemovedLines()
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{
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this.AssertFileChange(
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"first\r\nsecoXX\r\nREMOVE\r\nTHESE\r\nLINES\r\nXXfth",
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"first\r\nsecond\r\nthird\r\nfourth\r\nfifth",
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new FileChange
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{
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Line = 2,
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EndLine = 6,
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Offset = 5,
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EndOffset = 3,
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InsertString = "nd\r\nthird\r\nfourth\r\nfi"
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});
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}
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[Fact]
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public void CanApplyMultiLineDelete()
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{
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this.AssertFileChange(
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"first\r\nsecond\r\nREMOVE\r\nTHESE\r\nLINES\r\nthird",
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"first\r\nsecond\r\nthird",
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new FileChange
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{
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Line = 3,
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EndLine = 6,
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Offset = 1,
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EndOffset = 1,
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InsertString = ""
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});
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}
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[Fact]
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public void ThrowsExceptionWithEditOutsideOfRange()
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{
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Assert.Throws(
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typeof(ArgumentOutOfRangeException),
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() =>
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{
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this.AssertFileChange(
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"first\r\nsecond\r\nREMOVE\r\nTHESE\r\nLINES\r\nthird",
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"first\r\nsecond\r\nthird",
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new FileChange
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{
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Line = 3,
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EndLine = 7,
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Offset = 1,
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EndOffset = 1,
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InsertString = ""
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});
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});
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}
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private void AssertFileChange(
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string initialString,
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string expectedString,
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FileChange fileChange)
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{
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// Create an in-memory file from the StringReader
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ScriptFile fileToChange = GetTestScriptFile(initialString);
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// Apply the FileChange and assert the resulting contents
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fileToChange.ApplyChange(fileChange);
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Assert.Equal(expectedString, fileToChange.Contents);
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}
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}
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public class ScriptFileGetLinesTests
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{
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private ScriptFile scriptFile;
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private const string TestString = "Line One\r\nLine Two\r\nLine Three\r\nLine Four\r\nLine Five";
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private readonly string[] TestStringLines =
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TestString.Split(
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new string[] { "\r\n" },
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StringSplitOptions.None);
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public ScriptFileGetLinesTests()
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{
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this.scriptFile =
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ScriptFileTests.GetTestScriptFile(
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"Line One\r\nLine Two\r\nLine Three\r\nLine Four\r\nLine Five\r\n");
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}
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[Fact]
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public void CanGetWholeLine()
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{
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string[] lines =
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this.scriptFile.GetLinesInRange(
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new BufferRange(5, 1, 5, 10));
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Assert.Equal(1, lines.Length);
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Assert.Equal("Line Five", lines[0]);
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}
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[Fact]
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public void CanGetMultipleWholeLines()
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{
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string[] lines =
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this.scriptFile.GetLinesInRange(
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new BufferRange(2, 1, 4, 10));
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Assert.Equal(TestStringLines.Skip(1).Take(3), lines);
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}
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[Fact]
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public void CanGetSubstringInSingleLine()
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{
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string[] lines =
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this.scriptFile.GetLinesInRange(
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new BufferRange(4, 3, 4, 8));
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Assert.Equal(1, lines.Length);
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Assert.Equal("ne Fo", lines[0]);
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}
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[Fact]
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public void CanGetEmptySubstringRange()
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{
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string[] lines =
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this.scriptFile.GetLinesInRange(
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new BufferRange(4, 3, 4, 3));
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Assert.Equal(1, lines.Length);
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Assert.Equal("", lines[0]);
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}
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[Fact]
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public void CanGetSubstringInMultipleLines()
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{
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string[] expectedLines = new string[]
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{
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"Two",
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"Line Three",
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"Line Fou"
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};
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string[] lines =
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this.scriptFile.GetLinesInRange(
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new BufferRange(2, 6, 4, 9));
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Assert.Equal(expectedLines, lines);
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}
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[Fact]
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public void CanGetRangeAtLineBoundaries()
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{
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string[] expectedLines = new string[]
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{
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"",
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"Line Three",
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""
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};
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string[] lines =
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this.scriptFile.GetLinesInRange(
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new BufferRange(2, 9, 4, 1));
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Assert.Equal(expectedLines, lines);
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}
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}
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public class ScriptFilePositionTests
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{
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private ScriptFile scriptFile;
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public ScriptFilePositionTests()
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{
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this.scriptFile =
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ScriptFileTests.GetTestScriptFile(@"
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First line
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Second line is longer
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Third line
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");
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}
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[Fact]
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public void CanOffsetByLine()
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{
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this.AssertNewPosition(
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1, 1,
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2, 0,
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3, 1);
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this.AssertNewPosition(
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3, 1,
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-2, 0,
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1, 1);
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}
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[Fact]
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public void CanOffsetByColumn()
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{
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this.AssertNewPosition(
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2, 1,
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0, 2,
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2, 3);
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this.AssertNewPosition(
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2, 5,
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0, -3,
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2, 2);
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}
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[Fact]
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public void ThrowsWhenPositionOutOfRange()
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{
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// Less than line range
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Assert.Throws(
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typeof(ArgumentOutOfRangeException),
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() =>
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{
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scriptFile.CalculatePosition(
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new BufferPosition(1, 1),
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-10, 0);
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});
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// Greater than line range
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Assert.Throws(
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typeof(ArgumentOutOfRangeException),
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() =>
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{
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scriptFile.CalculatePosition(
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new BufferPosition(1, 1),
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10, 0);
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});
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// Less than column range
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Assert.Throws(
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typeof(ArgumentOutOfRangeException),
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() =>
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{
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scriptFile.CalculatePosition(
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new BufferPosition(1, 1),
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0, -10);
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});
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// Greater than column range
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Assert.Throws(
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typeof(ArgumentOutOfRangeException),
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() =>
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{
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scriptFile.CalculatePosition(
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new BufferPosition(1, 1),
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0, 10);
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});
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}
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[Fact]
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public void CanFindBeginningOfLine()
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{
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this.AssertNewPosition(
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4, 12,
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pos => pos.GetLineStart(),
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4, 5);
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}
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[Fact]
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public void CanFindEndOfLine()
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{
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this.AssertNewPosition(
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4, 12,
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pos => pos.GetLineEnd(),
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4, 15);
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}
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[Fact]
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public void CanComposePositionOperations()
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{
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this.AssertNewPosition(
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4, 12,
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pos => pos.AddOffset(-1, 1).GetLineStart(),
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3, 3);
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}
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private void AssertNewPosition(
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int originalLine, int originalColumn,
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int lineOffset, int columnOffset,
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int expectedLine, int expectedColumn)
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{
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this.AssertNewPosition(
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originalLine, originalColumn,
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pos => pos.AddOffset(lineOffset, columnOffset),
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expectedLine, expectedColumn);
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}
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private void AssertNewPosition(
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int originalLine, int originalColumn,
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Func<FilePosition, FilePosition> positionOperation,
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int expectedLine, int expectedColumn)
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{
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var newPosition =
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positionOperation(
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new FilePosition(
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this.scriptFile,
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originalLine,
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originalColumn));
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Assert.Equal(expectedLine, newPosition.Line);
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Assert.Equal(expectedColumn, newPosition.Column);
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}
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}
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}
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