public void MountFailsUpgradingFromInvalidUpgradePath(string mountSubfolder)
{
MountSubfolders.EnsureSubfoldersOnDisk(this.Enlistment, this.fileSystem);
string headCommitId = GitProcess.Invoke(this.Enlistment.RepoRoot, "rev-parse HEAD");
this.Enlistment.UnmountGSD();
string majorVersion;
string minorVersion;
GSDHelpers.GetPersistedDiskLayoutVersion(this.Enlistment.DotGSDRoot, out majorVersion, out minorVersion);
int majorVersionNum;
int minorVersionNum;
int.TryParse(majorVersion.ShouldNotBeNull(), out majorVersionNum).ShouldEqual(true);
int.TryParse(minorVersion.ShouldNotBeNull(), out minorVersionNum).ShouldEqual(true);
// 1 will always be below the minumum support version number
GSDHelpers.SaveDiskLayoutVersion(this.Enlistment.DotGSDRoot, "1", "0");
this.MountShouldFail("Breaking change to GSD disk layout has been made since cloning", this.Enlistment.GetVirtualPathTo(mountSubfolder));
GSDHelpers.SaveDiskLayoutVersion(this.Enlistment.DotGSDRoot, majorVersionNum.ToString(), minorVersionNum.ToString());
this.Enlistment.MountGSD();
}
public void MountFailsWhenNoGitObjectsRootInRepoMetadata()
{
this.Enlistment.UnmountGSD();
string majorVersion;
string minorVersion;
GSDHelpers.GetPersistedDiskLayoutVersion(this.Enlistment.DotGSDRoot, out majorVersion, out minorVersion);
majorVersion.ShouldNotBeNull();
minorVersion.ShouldNotBeNull();
string localCacheRoot = GSDHelpers.GetPersistedLocalCacheRoot(this.Enlistment.DotGSDRoot).ShouldNotBeNull();
string metadataPath = Path.Combine(this.Enlistment.DotGSDRoot, GSDHelpers.RepoMetadataName);
string metadataBackupPath = metadataPath + ".backup";
this.fileSystem.MoveFile(metadataPath, metadataBackupPath);
this.fileSystem.CreateEmptyFile(metadataPath);
GSDHelpers.SaveDiskLayoutVersion(this.Enlistment.DotGSDRoot, majorVersion, minorVersion);
GSDHelpers.SaveLocalCacheRoot(this.Enlistment.DotGSDRoot, localCacheRoot);
this.MountShouldFail("Failed to determine git objects root from repo metadata");
this.fileSystem.DeleteFile(metadataPath);
this.fileSystem.MoveFile(metadataBackupPath, metadataPath);
this.Enlistment.MountGSD();
}
public void MountFailsIfBeforeMinimumVersion()
{
// Mount should fail if on disk version is below minimum supported version
this.Enlistment.UnmountGSD();
GSDHelpers.SaveDiskLayoutVersion(
this.Enlistment.DotGSDRoot,
(this.currentDiskMinimumMajorVersion - 1).ToString(),
CurrentDiskLayoutMinorVersion.ToString());
this.Enlistment.TryMountGSD().ShouldBeFalse("Mount should fail because we are before minimum version");
}
public void MountSucceedsIfMinorVersionHasAdvancedButNotMajorVersion()
{
// Advance the minor version, mount should still work
this.Enlistment.UnmountGSD();
GSDHelpers.SaveDiskLayoutVersion(
this.Enlistment.DotGSDRoot,
this.currentDiskMajorVersion.ToString(),
(CurrentDiskLayoutMinorVersion + 1).ToString());
this.Enlistment.TryMountGSD().ShouldBeTrue("Mount should succeed because only the minor version advanced");
// Advance the major version, mount should fail
this.Enlistment.UnmountGSD();
GSDHelpers.SaveDiskLayoutVersion(
this.Enlistment.DotGSDRoot,
(this.currentDiskMajorVersion + 1).ToString(),
CurrentDiskLayoutMinorVersion.ToString());
this.Enlistment.TryMountGSD().ShouldBeFalse("Mount should fail because the major version has advanced");
}
public void MountFailsAfterBreakingDowngrade(string mountSubfolder)
{
MountSubfolders.EnsureSubfoldersOnDisk(this.Enlistment, this.fileSystem);
this.Enlistment.UnmountGSD();
string majorVersion;
string minorVersion;
GSDHelpers.GetPersistedDiskLayoutVersion(this.Enlistment.DotGSDRoot, out majorVersion, out minorVersion);
int majorVersionNum;
int minorVersionNum;
int.TryParse(majorVersion.ShouldNotBeNull(), out majorVersionNum).ShouldEqual(true);
int.TryParse(minorVersion.ShouldNotBeNull(), out minorVersionNum).ShouldEqual(true);
GSDHelpers.SaveDiskLayoutVersion(this.Enlistment.DotGSDRoot, (majorVersionNum + 1).ToString(), "0");
this.MountShouldFail("do not allow mounting after downgrade", this.Enlistment.GetVirtualPathTo(mountSubfolder));
GSDHelpers.SaveDiskLayoutVersion(this.Enlistment.DotGSDRoot, majorVersionNum.ToString(), minorVersionNum.ToString());
this.Enlistment.MountGSD();
}