Integration Test of File collection fetaure

Writing integration test to test file collection feature. The test case is executing the following functionality.

• storageInstruction
• upload file using signedUrl
• insert record in storage
• retrivalInstruction
• download file and match the content of file with uploaded content.

Sample response of storageInstruction -

{
    "providerKey": "AZURE",
    "storageLocation": {
        "signedUrl": "https://{accountName}.dfs.core.windows.net/{containerName}/{directoryPath}?{sasToken}",
        "fileCollectionSource": "{directoryPath}",
        "createdBy": "username"
    }
}

Sample request Body of dataSet Registry Id -

{
    "datasetRegistries": [
        {
            "kind": "osdu:wks:dataset--FileCollection.Generic:1.0.0",
            ....
            ....       
            ....   
            ....
            },
            "data": {
                "DatasetProperties": {
                    "FileCollectionPath" : "{{directoryPath}}"
                }
            }
        }
    ]
}