Add an example mmd file into the test database

This will actually be used to test the content generator functionality

tests/__init__.py

@@ -32,6 +32,7 @@ import modulemd
 from module_build_service.utils import get_scm_url_re
 import module_build_service.pdc
 
+base_dir = os.path.dirname(__file__)
 app = module_build_service.app
 conf = init_config(app)
 
@@ -46,7 +47,8 @@ def init_data():
         build_one.stream = '1'
         build_one.version = 2
         build_one.state = 3
-        build_one.modulemd = ''  # Skipping since no tests rely on it
+        with open(os.path.join(base_dir, "staged_data", "nginx_mmd.yaml")) as mmd:
+            build_one.modulemd = mmd.read()
         build_one.koji_tag = 'module-nginx-1.2'
         build_one.scmurl = ('git://pkgs.domain.local/modules/nginx?'
                             '#ba95886c7a443b36a9ce31abda1f9bef22f2f8c9')

tests/staged_data/nginx_mmd.yaml

@@ -0,0 +1,31 @@
+# Document type identifier
+document: modulemd
+# Module metadata format version
+version: 1
+data:
+    # Module name, optional
+    # Typically filled in by the buildsystem, using the VCS repository
+    # name as the name of the module.
+    name: nginx
+    # Module update stream, optional
+    # Typically filled in by the buildsystem, using the VCS branch name
+    # as the name of the stream.
+    stream: 1
+    # Module version, integer, optional, cannot be negative
+    # Typically filled in by the buildsystem, using the VCS commit
+    # timestamp.  Module version defines upgrade path for the particular
+    # update stream.
+    version: 2
+    # A short summary describing the module, required
+    summary: An example nginx module
+    # A verbose description of the module, required
+    description: >
+        A module for the tests of module build service
+    # Module and content licenses in the Fedora license identifier
+    # format, required
+    license:
+        # Module license, required
+        # This list covers licenses used for the module metadata, SPEC
+        # files or extra patches
+        module:
+            - MIT

tests/test_views/test_views.py

@@ -147,7 +147,8 @@ class TestViews(unittest.TestCase):
         data = json.loads(rv.data)
         self.assertEquals(data['component_builds'], [1, 2])
         self.assertEquals(data['id'], 1)
-        self.assertEquals(data['modulemd'], '')
+        with open(path.join(base_dir, "staged_data", "nginx_mmd.yaml")) as mmd:
+            self.assertEquals(data['modulemd'], mmd.read())
         self.assertEquals(data['name'], 'nginx')
         self.assertEquals(data['owner'], 'Moe Szyslak')
         self.assertEquals(data['scmurl'],