public void TestGenerateDirectoryHashNoDirectory()
{
string nonExistentDir = Path.Combine(Path.GetFullPath(tempFolder), "temsp");
Utils.GenerateDirectoryHash(null, nonExistentDir, "");
Assert.Fail("Expected an IOException as the directory does not exist");
}
public void TestGenerateDirectoryHashEmptyDirectory()
{
string emptydir = Path.Combine(tempFolder, "subfolder");
Directory.CreateDirectory(emptydir);
Utils.GenerateDirectoryHash(null, emptydir, "");
Assert.Fail("Expected an IOException as the directory is empty");
}
public void TestGenerateDirectoryHashWithFile()
{
// Create a temp file
string tempfile = Path.Combine(tempFolder, "temp.txt");
File.OpenWrite(tempfile).Close();
Utils.GenerateDirectoryHash(null, tempfile, "");
Assert.Fail("Expected an IOException as we passed it a file");
}
// ==========================================================================================
// Helper methods
// ==========================================================================================
// Helper method to allow tests of multiple code paths through generateDirectoryHash
public void DoGenerateDirectoryHash(bool useRootDir, bool usePreviousHash)
{
// Use any old hash value
string previousHashToUse = "3c08029b52176eacf802dee93129a9f1fd115008950e1bb968465dcd51bbbb9d";
// The hashes expected when we 1: do not pass a previousHash and 2: pass
// the previousHash
string expectedHash1 = "a7ffc6f8bf1ed76651c14756a061d662f580ff4de43b49fa82d80a4b80f8434a";
string expectedHash2 = "6c9f96b2dd87d7a02fd3b7cc6026a6a96d21c4c53aaf5777439151690c48c7b8";
string expectedHash = usePreviousHash ? expectedHash2 : expectedHash1;
string chaincodeSubDirString = "chaincode/example/java";
// Create the temp directories
string rootDir = Path.GetFullPath(tempFolder);
string chaincodeDir = Path.Combine(rootDir, chaincodeSubDirString);
Directory.CreateDirectory(chaincodeDir);
string rootDirString = null;
string chaincodeDirString;
if (useRootDir)
{
// Pass both a RootDir and a chaincodeDir to the function
rootDirString = rootDir;
chaincodeDirString = chaincodeSubDirString;
}
else
{
// Pass just a chaincodeDir to the function
chaincodeDirString = chaincodeDir;
}
// Create a dummy file in the chaincode directory
string tempfile = Path.Combine(tempFolder, "temp.txt");
File.OpenWrite(tempfile).Close();
string previousHash = usePreviousHash ? previousHashToUse : "";
string hash = Utils.GenerateDirectoryHash(rootDirString, chaincodeDirString, previousHash);
Assert.AreEqual(expectedHash, hash);
}
