diff --git a/tests/conftest.py b/tests/conftest.py
index f0ba04d..6fff38c 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -9,7 +9,7 @@ from tests.config import (
     ADMIN_PASSWORD, ADMIN_USER, INACTIVE_PASSWORD, INACTIVE_USER, PASSWORD,
     PASSWORD2, USER, USER2
 )
-from tests.utils import create_and_get_repo, randstring
+from tests.utils import create_and_get_repo, randstring, create_and_get_group
 
 from seaserv import ccnet_api, seafile_api
 
@@ -49,3 +49,17 @@ def repo():
         if seafile_api.get_repo(repo.id):
             # The repo may be deleted in the test case
             seafile_api.remove_repo(repo.id)
+
+@pytest.yield_fixture(scope='function')
+def group():
+    group = create_and_get_group(
+            'test_group测试-{}'.format(randstring(10)), USER, gtype=None
+    )
+    try:
+        yield group
+    finally:
+        if ccnet_api.get_group(group.id):
+            ccnet_api.remove_group(group.id)
+
+
+
diff --git a/tests/test_sharing.py b/tests/test_sharing.py
index 95e2d82..5ea098a 100644
--- a/tests/test_sharing.py
+++ b/tests/test_sharing.py
@@ -6,7 +6,8 @@ from tests.config import ADMIN_USER, USER, USER2
 
 
 @pytest.mark.parametrize('permission', ['r', 'rw'])
-def test_share_repo(repo, permission):
+def test_share_repo_to_user(repo, permission):
+    assert api.check_permission(repo.id, USER) == 'rw'
     assert api.check_permission(repo.id, USER2) is None
 
     api.share_repo(repo.id, USER, USER2, permission)
@@ -20,3 +21,44 @@ def test_share_repo(repo, permission):
 
     api.remove_share(repo.id, USER, USER2)
     assert api.check_permission(repo.id, USER2) is None
+
+
+@pytest.mark.parametrize('permission', ['r', 'rw'])
+def test_share_repo_to_group(repo, group, permission):
+    assert api.check_permission(repo.id, USER) == 'rw'
+    assert api.check_permission(repo.id, USER2) is None
+
+    repos = api.get_repos_by_group(group.id)
+    assert len(repos) == 0
+    
+    group_list = ccnet_api.get_groups(USER)
+    assert len(group_list) == 1
+    group_list = ccnet_api.get_groups(USER2)
+    assert len(group_list) == 0
+
+    api.group_share_repo(repo.id, group.id, USER, permission)
+    repos = api.get_repos_by_group(group.id)
+    assert len(repos) == 1
+    r = repos[0]
+    assert r.id == repo.id
+    assert r.permission == permission
+
+    ccnet_api.group_add_member(group.id, USER, USER2)
+    group_list = ccnet_api.get_groups(USER2)
+    assert len(group_list) == 1
+    g = group_list[0]
+    assert g.id == group.id
+
+    repos2 = api.get_repos_by_group(g.id)
+    assert len(repos2) == 1
+    r2 = repos2[0]
+    assert r2.id == repo.id
+    assert r2.permission == permission
+
+    assert api.check_permission(repo.id, USER2) == permission
+
+    api.group_unshare_repo(repo.id, group.id, USER);
+    repos = api.get_repos_by_group(group.id)
+    assert len(repos) == 0
+
+    assert api.check_permission(repo.id, USER2) is None
diff --git a/tests/utils.py b/tests/utils.py
index 5ef86ca..3ee7a9a 100644
--- a/tests/utils.py
+++ b/tests/utils.py
@@ -13,3 +13,8 @@ def create_and_get_repo(*a, **kw):
 
 def randstring(length=12):
     return ''.join(random.choice(string.lowercase) for i in range(length))
+
+def create_and_get_group(*a, **kw):
+    group_id = ccnet_api.create_group(*a, **kw)
+    group = ccnet_api.get_group(group_id)
+    return group