tests: fixed some git tests for lfs modules

rhodecode/tests/vcs/test_git.py

@@ -1201,9 +1201,10 b' class TestGetSubmoduleUrl(object):'
     def test_submodules_file_found(self):
         commit = GitCommit(repository=mock.Mock(), raw_id='abcdef12', idx=1)
         node = mock.Mock()
+
         with mock.patch.object(
                 commit, 'get_node', return_value=node) as get_node_mock:
-            node.content = (
+            node.str_content = (
                 '[submodule "subrepo1"]\n'
                 '\tpath = subrepo1\n'
                 '\turl = https://code.rhodecode.com/dulwich\n'
@@ -1215,9 +1216,10 b' class TestGetSubmoduleUrl(object):'
     def test_complex_submodule_path(self):
         commit = GitCommit(repository=mock.Mock(), raw_id='abcdef12', idx=1)
         node = mock.Mock()
+
         with mock.patch.object(
                 commit, 'get_node', return_value=node) as get_node_mock:
-            node.content = (
+            node.str_content = (
                 '[submodule "complex/subrepo/path"]\n'
                 '\tpath = complex/subrepo/path\n'
                 '\turl = https://code.rhodecode.com/dulwich\n'
@@ -1236,9 +1238,10 b' class TestGetSubmoduleUrl(object):'
     def test_path_not_found(self):
         commit = GitCommit(repository=mock.Mock(), raw_id='abcdef12', idx=1)
         node = mock.Mock()
+
         with mock.patch.object(
                 commit, 'get_node', return_value=node) as get_node_mock:
-            node.content = (
+            node.str_content = (
                 '[submodule "subrepo1"]\n'
                 '\tpath = subrepo1\n'
                 '\turl = https://code.rhodecode.com/dulwich\n'
@@ -1250,9 +1253,10 b' class TestGetSubmoduleUrl(object):'
     def test_returns_cached_values(self):
         commit = GitCommit(repository=mock.Mock(), raw_id='abcdef12', idx=1)
         node = mock.Mock()
+
         with mock.patch.object(
                 commit, 'get_node', return_value=node) as get_node_mock:
-            node.content = (
+            node.str_content = (
                 '[submodule "subrepo1"]\n'
                 '\tpath = subrepo1\n'
                 '\turl = https://code.rhodecode.com/dulwich\n'