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Simpler symbolic link implementation

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This commit is contained in:
Caelan Sayler
2024-03-19 15:07:05 +00:00
parent faa19533d7
commit 4d53f96ce2
3 changed files with 314 additions and 598 deletions
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68
test/Velopack.Tests/JunctionPointTests.cs → test/Velopack.Tests/SymbolicLinkTests.cs
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@@ -1,12 +1,12 @@
namespace Velopack.Tests;
public class JunctionPointTests
public class SymbolicLinkTests
{
[Fact]
public void Exists_NoSuchFile()
{
using var _1 = Utility.GetTempDirectory(out var tempFolder);
Assert.False(JunctionPoint.Exists(Path.Combine(tempFolder, "$$$NoSuchFolder$$$")));
Assert.False(SymbolicLink.Exists(Path.Combine(tempFolder, "$$$NoSuchFolder$$$")));
}
[Fact]
@@ -15,11 +15,11 @@ public class JunctionPointTests
using var _1 = Utility.GetTempDirectory(out var tempFolder);
File.Create(Path.Combine(tempFolder, "AFile")).Close();
Assert.False(JunctionPoint.Exists(Path.Combine(tempFolder, "AFile")));
Assert.False(SymbolicLink.Exists(Path.Combine(tempFolder, "AFile")));
}
[Fact]
public void Create_VerifyExists_GetTarget_Delete()
public void CreateDirectory_VerifyExists_GetTarget_Delete()
{
using var _1 = Utility.GetTempDirectory(out var tempFolder);
string targetFolder = Path.Combine(tempFolder, "ADirectory");
@@ -32,22 +32,22 @@ public class JunctionPointTests
Assert.False(File.Exists(Path.Combine(junctionPoint, "AFile")),
"File should not be located until junction point created.");
Assert.False(JunctionPoint.Exists(junctionPoint), "Junction point not created yet.");
Assert.False(SymbolicLink.Exists(junctionPoint), "Junction point not created yet.");
// Create junction point and confirm its properties.
JunctionPoint.Create(junctionPoint, targetFolder, false /*don't overwrite*/);
SymbolicLink.Create(junctionPoint, targetFolder, false /*don't overwrite*/);
Assert.True(JunctionPoint.Exists(junctionPoint), "Junction point exists now.");
Assert.True(SymbolicLink.Exists(junctionPoint), "Junction point exists now.");
Assert.Equal(targetFolder, JunctionPoint.GetTarget(junctionPoint));
Assert.Equal(targetFolder, SymbolicLink.GetTarget(junctionPoint));
Assert.True(File.Exists(Path.Combine(junctionPoint, "AFile")),
"File should be accessible via the junction point.");
// Delete junction point.
JunctionPoint.Delete(junctionPoint);
SymbolicLink.Delete(junctionPoint);
Assert.False(JunctionPoint.Exists(junctionPoint), "Junction point should not exist now.");
Assert.False(SymbolicLink.Exists(junctionPoint), "Junction point should not exist now.");
Assert.False(File.Exists(Path.Combine(junctionPoint, "AFile")),
"File should not be located after junction point deleted.");
@@ -58,6 +58,34 @@ public class JunctionPointTests
File.Delete(Path.Combine(targetFolder, "AFile"));
}
[Fact]
public void CreateFile_VerifyExists_GetTarget_Delete()
{
using var _1 = Utility.GetTempDirectory(out var tempFolder);
var tmpFile = Path.Combine(tempFolder, "AFile");
var symFile = Path.Combine(tempFolder, "SymFile");
File.Create(tmpFile).Close();
Assert.False(File.Exists(symFile), "File should not be located until junction point created.");
Assert.False(SymbolicLink.Exists(symFile), "File should not be located until junction point created.");
SymbolicLink.Create(symFile, tmpFile, true);
Assert.True(File.Exists(symFile), "Symfile point exists now.");
Assert.True(SymbolicLink.Exists(symFile), "Junction point exists now.");
Assert.Equal(tmpFile, SymbolicLink.GetTarget(symFile));
// verify symlink contents match real file.
Assert.Empty(File.ReadAllBytes(symFile));
File.WriteAllText(tmpFile, "Hello, World!");
Assert.Equal("Hello, World!", File.ReadAllText(symFile));
SymbolicLink.Delete(symFile);
Assert.False(File.Exists(symFile));
Assert.False(SymbolicLink.Exists(symFile));
}
[Fact]
public void Create_ThrowsIfOverwriteNotSpecifiedAndDirectoryExists()
{
@@ -66,7 +94,7 @@ public class JunctionPointTests
string junctionPoint = Path.Combine(tempFolder, "SymLink");
Directory.CreateDirectory(junctionPoint);
Assert.Throws<IOException>(() => JunctionPoint.Create(junctionPoint, targetFolder, false));
Assert.Throws<IOException>(() => SymbolicLink.Create(junctionPoint, targetFolder, false));
}
[Fact]
@@ -79,9 +107,9 @@ public class JunctionPointTests
Directory.CreateDirectory(junctionPoint);
Directory.CreateDirectory(targetFolder);
JunctionPoint.Create(junctionPoint, targetFolder, true);
SymbolicLink.Create(junctionPoint, targetFolder, true);
Assert.Equal(targetFolder, JunctionPoint.GetTarget(junctionPoint));
Assert.Equal(targetFolder, SymbolicLink.GetTarget(junctionPoint));
}
[Fact]
@@ -90,21 +118,21 @@ public class JunctionPointTests
using var _1 = Utility.GetTempDirectory(out var tempFolder);
string targetFolder = Path.Combine(tempFolder, "ADirectory");
string junctionPoint = Path.Combine(tempFolder, "SymLink");
Assert.Throws<IOException>(() => JunctionPoint.Create(junctionPoint, targetFolder, false));
Assert.Throws<IOException>(() => SymbolicLink.Create(junctionPoint, targetFolder, false));
}
[Fact]
public void GetTarget_NonExistentJunctionPoint()
{
using var _1 = Utility.GetTempDirectory(out var tempFolder);
Assert.Throws<IOException>(() => JunctionPoint.GetTarget(Path.Combine(tempFolder, "SymLink")));
Assert.Throws<IOException>(() => SymbolicLink.GetTarget(Path.Combine(tempFolder, "SymLink")));
}
[Fact]
public void GetTarget_CalledOnADirectoryThatIsNotAJunctionPoint()
{
using var _1 = Utility.GetTempDirectory(out var tempFolder);
Assert.Throws<IOException>(() => JunctionPoint.GetTarget(tempFolder));
Assert.Throws<IOException>(() => SymbolicLink.GetTarget(tempFolder));
}
[Fact]
@@ -113,7 +141,7 @@ public class JunctionPointTests
using var _1 = Utility.GetTempDirectory(out var tempFolder);
File.Create(Path.Combine(tempFolder, "AFile")).Close();
Assert.Throws<IOException>(() => JunctionPoint.GetTarget(Path.Combine(tempFolder, "AFile")));
Assert.Throws<IOException>(() => SymbolicLink.GetTarget(Path.Combine(tempFolder, "AFile")));
}
[Fact]
@@ -121,14 +149,14 @@ public class JunctionPointTests
{
// Should do nothing.
using var _1 = Utility.GetTempDirectory(out var tempFolder);
JunctionPoint.Delete(Path.Combine(tempFolder, "SymLink"));
SymbolicLink.Delete(Path.Combine(tempFolder, "SymLink"));
}
[Fact]
public void Delete_CalledOnADirectoryThatIsNotAJunctionPoint()
{
using var _1 = Utility.GetTempDirectory(out var tempFolder);
Assert.Throws<IOException>(() => JunctionPoint.Delete(tempFolder));
Assert.Throws<IOException>(() => SymbolicLink.Delete(tempFolder));
}
[Fact]
@@ -137,6 +165,6 @@ public class JunctionPointTests
using var _1 = Utility.GetTempDirectory(out var tempFolder);
File.Create(Path.Combine(tempFolder, "AFile")).Close();
Assert.Throws<IOException>(() => JunctionPoint.Delete(Path.Combine(tempFolder, "AFile")));
Assert.Throws<IOException>(() => SymbolicLink.Delete(Path.Combine(tempFolder, "AFile")));
}
}