Add RemoteArtifactCache. Move metadata basename code into Artifact.

1 files changed, 156 insertions, 0 deletions

diff --git a/morphlib/remoteartifactcache_tests.py b/morphlib/remoteartifactcache_tests.py
new file mode 100644
index 00000000..b7f10450
--- /dev/null
+++ b/morphlib/remoteartifactcache_tests.py
@@ -0,0 +1,156 @@
+# Copyright (C) 2012  Codethink Limited
+# 
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; version 2 of the License.
+# 
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+
+import StringIO
+import unittest
+
+import morphlib
+
+
+class RemoteArtifactCacheTests(unittest.TestCase):
+
+    def setUp(self):
+        morph = morphlib.morph2.Morphology(
+                '''
+                {
+                    "chunk": "chunk",
+                    "kind": "chunk",
+                    "artifacts": {
+                        "chunk-runtime": [
+                            "usr/bin",
+                            "usr/sbin",
+                            "usr/lib",
+                            "usr/libexec"
+                        ],
+                        "chunk-devel": [
+                            "usr/include"
+                        ],
+                        "chunk-doc": [
+                            "usr/share/doc"
+                        ]
+                    }
+                }
+                ''')
+        self.source = morphlib.source.Source(
+                'repo', 'ref', 'sha1', morph, 'chunk.morph')
+        self.runtime_artifact = morphlib.artifact.Artifact(
+                self.source, 'chunk-runtime')
+        self.runtime_artifact.cache_key = 'CHUNK-RUNTIME'
+        self.devel_artifact = morphlib.artifact.Artifact(
+                self.source, 'chunk-devel')
+        self.devel_artifact.cache_key = 'CHUNK-DEVEL'
+        self.doc_artifact = morphlib.artifact.Artifact(
+                self.source, 'chunk-doc')
+        self.doc_artifact.cache_key = 'CHUNK-DOC'
+
+        self.existing_files = set([
+            self.runtime_artifact.basename(),
+            self.devel_artifact.basename(),
+            self.runtime_artifact.metadata_basename('meta'),
+            '%s.%s' % (self.runtime_artifact.cache_key, 'meta'),
+        ])
+
+        self.server_url = 'http://foo.bar:8080'
+        self.cache = morphlib.remoteartifactcache.RemoteArtifactCache(
+                self.server_url)
+        self.cache._has_file = self._has_file
+        self.cache._get_file = self._get_file
+
+    def _has_file(self, filename):
+        return filename in self.existing_files
+
+    def _get_file(self, filename):
+        if filename in self.existing_files:
+            return StringIO.StringIO('%s' % filename)
+        else:
+            raise Exception('foo')
+
+    def test_sets_server_url(self):
+        self.assertEqual(self.cache.server_url, self.server_url)
+
+    def test_has_existing_artifact(self):
+        self.assertTrue(self.cache.has(self.runtime_artifact))
+
+    def test_has_a_different_existing_artifact(self):
+        self.assertTrue(self.cache.has(self.devel_artifact))
+
+    def test_does_not_have_a_non_existent_artifact(self):
+        self.assertFalse(self.cache.has(self.doc_artifact))
+
+    def test_has_existing_artifact_metadata(self):
+        self.assertTrue(self.cache.has_artifact_metadata(
+            self.runtime_artifact, 'meta'))
+
+    def test_does_not_have_non_existent_artifact_metadata(self):
+        self.assertFalse(self.cache.has_artifact_metadata(
+            self.runtime_artifact, 'non-existent-meta'))
+
+    def test_has_existing_source_metadata(self):
+        self.assertTrue(self.cache.has_source_metadata(
+            self.runtime_artifact.source,
+            self.runtime_artifact.cache_key,
+            'meta'))
+
+    def test_does_not_have_non_existent_source_metadata(self):
+        self.assertFalse(self.cache.has_source_metadata(
+            self.runtime_artifact.source,
+            self.runtime_artifact.cache_key,
+            'non-existent-meta'))
+
+    def test_get_existing_artifact(self):
+        handle = self.cache.get(self.runtime_artifact)
+        data = handle.read()
+        self.assertEqual(data, self.runtime_artifact.basename())
+
+    def test_get_a_different_existing_artifact(self):
+        handle = self.cache.get(self.devel_artifact)
+        data = handle.read()
+        self.assertEqual(data, self.devel_artifact.basename())
+
+    def test_fails_to_get_a_non_existent_artifact(self):
+        self.assertRaises(morphlib.remoteartifactcache.GetError,
+                          self.cache.get, self.doc_artifact)
+
+    def test_get_existing_artifact_metadata(self):
+        handle = self.cache.get_artifact_metadata(
+                self.runtime_artifact, 'meta')
+        data = handle.read()
+        self.assertEqual(
+                data, '%s.%s' % (self.runtime_artifact.basename(), 'meta'))
+
+    def test_fails_to_get_non_existent_artifact_metadata(self):
+        self.assertRaises(
+                morphlib.remoteartifactcache.GetArtifactMetadataError,
+                self.cache.get_artifact_metadata,
+                self.runtime_artifact,
+                'non-existent-meta')
+
+    def test_get_existing_source_metadata(self):
+        handle = self.cache.get_source_metadata(
+                self.runtime_artifact.source,
+                self.runtime_artifact.cache_key,
+                'meta')
+        data = handle.read()
+        self.assertEqual(
+                data, '%s.%s' % (self.runtime_artifact.cache_key, 'meta'))
+
+    def test_fails_to_get_non_existent_source_metadata(self):
+        self.assertRaises(
+                morphlib.remoteartifactcache.GetSourceMetadataError,
+                self.cache.get_source_metadata,
+                self.runtime_artifact.source, 
+                self.runtime_artifact.cache_key,
+                'non-existent-meta')