Added file digest computation

Support to compute file digest and save it to manifest file. Also extend
the manifest file module to be able to write content into temporary
file.

Change-Id: If1f3f42799eb527bdeac418d1a40aa203641f628
Issue-ID: VNFSDK-174
Signed-off-by: Lianhao Lu <lianhao.lu@intel.com>

1 files changed, 99 insertions, 0 deletions

diff --git a/tests/packager/test_csar.py b/tests/packager/test_csar.py
new file mode 100644
index 0000000..fcf034e
--- /dev/null
+++ b/tests/packager/test_csar.py
@@ -0,0 +1,99 @@
+#
+# Copyright (c) 2017 GigaSpaces Technologies Ltd. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License"); you may
+# not use this file except in compliance with the License. You may obtain
+# a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+# License for the specific language governing permissions and limitations
+# under the License.
+#
+import collections
+import filecmp
+import logging
+import os
+import tempfile
+import shutil
+
+from vnfsdk_pkgtools.packager import csar
+
+CSAR_RESOURCE_DIR = 'tests/resources/csar'
+CSAR_ENTRY_FILE = 'test_entry.yaml'
+CSAR_OUTPUT_FILE = 'output.csar'
+
+Args = collections.namedtuple('Args',
+        ['source', 'entry', 'manifest', 'history', 'tests', 'licenses', 'digest'])
+
+ARGS_MANIFEST = {
+            'source': CSAR_RESOURCE_DIR,
+            'entry': CSAR_ENTRY_FILE,
+            'manifest': 'test_entry.mf',
+            'history': 'ChangeLog.txt',
+            'tests': 'Tests',
+            'licenses': 'Licenses',
+            'digest': None
+        }
+
+ARGS_MANIFEST_DIGEST = {
+            'source': CSAR_RESOURCE_DIR,
+            'entry': CSAR_ENTRY_FILE,
+            'manifest': 'test_entry.mf',
+            'history': 'ChangeLog.txt',
+            'tests': 'Tests',
+            'licenses': 'Licenses',
+            'digest': 'sha256'
+        }
+
+
+ARGS_NO_MANIFEST = {
+            'source': CSAR_RESOURCE_DIR,
+            'entry': CSAR_ENTRY_FILE,
+            'manifest': None,
+            'history': None,
+            'tests': None,
+            'licenses': None,
+            'digest': None,
+        }
+
+
+def csar_write_test(args):
+    csar_target_dir = tempfile.mkdtemp()
+    csar_extract_dir = tempfile.mkdtemp()
+    try:
+        csar.write(args.source, args.entry, csar_target_dir + '/' + CSAR_OUTPUT_FILE, logging, args)
+        csar.read(csar_target_dir + '/' + CSAR_OUTPUT_FILE, csar_extract_dir, logging)
+        assert filecmp.cmp(args.source + '/' + args.entry, csar_extract_dir + '/' + args.entry)
+        if(args.manifest and not args.digest):
+            assert filecmp.cmp(args.source + '/' + args.manifest,
+                               csar_extract_dir + '/' + args.manifest)
+        if(args.history):
+            assert filecmp.cmp(args.source + '/' + args.history,
+                               csar_extract_dir + '/' + args.history)
+    finally:
+        shutil.rmtree(csar_target_dir, ignore_errors=True)
+        shutil.rmtree(csar_extract_dir, ignore_errors=True)
+
+
+def test_CSARWrite():
+    csar_write_test(Args(**ARGS_NO_MANIFEST))
+
+
+def test_CSARWrite_manifest():
+    # Because git can not store emptry directory, we need to create manually here
+    license_path = ARGS_MANIFEST['source'] + '/' + ARGS_MANIFEST['licenses']
+    if not os.path.exists(license_path):
+        os.makedirs(license_path)
+    csar_write_test(Args(**ARGS_MANIFEST))
+
+
+def test_CSARWrite_manifest_digest():
+    # Because git can not store emptry directory, we need to create manually here
+    license_path = ARGS_MANIFEST['source'] + '/' + ARGS_MANIFEST['licenses']
+    if not os.path.exists(license_path):
+        os.makedirs(license_path)
+    csar_write_test(Args(**ARGS_MANIFEST_DIGEST))