diff --git a/test/test_defined_names.py b/test/test_defined_names.py
new file mode 100644
index 00000000..ee04d38e
--- /dev/null
+++ b/test/test_defined_names.py
@@ -0,0 +1,60 @@
+"""
+Tests for `api.defined_names`.
+"""
+
+from jedi import api
+from .base import TestBase
+
+
+class TestDefinedNames(TestBase):
+
+    def test_get_definitions_flat(self):
+        definitions = api.defined_names("""
+        import module
+        class Class:
+            pass
+        def func():
+            pass
+        data = None
+        """)
+        self.assertEqual([d.name for d in definitions],
+                         ['module', 'Class', 'func', 'data'])
+
+    def test_dotted_assignment(self):
+        definitions = api.defined_names("""
+        x = Class()
+        x.y.z = None
+        """)
+        self.assertEqual([d.name for d in definitions],
+                         ['x'])
+
+    def test_multiple_assignment(self):
+        definitions = api.defined_names("""
+        x = y = None
+        """)
+        self.assertEqual([d.name for d in definitions],
+                         ['x', 'y'])
+
+    def test_multiple_imports(self):
+        definitions = api.defined_names("""
+        from module import a, b
+        from another_module import *
+        """)
+        self.assertEqual([d.name for d in definitions],
+                         ['a', 'b'])
+
+    def test_nested_definitions(self):
+        definitions = api.defined_names("""
+        class Class:
+            def f():
+                pass
+            def g():
+                pass
+        """)
+        self.assertEqual([d.name for d in definitions],
+                         ['Class'])
+        subdefinitions = definitions[0].defined_names()
+        self.assertEqual([d.name for d in subdefinitions],
+                         ['f', 'g'])
+        self.assertEqual([d.full_name for d in subdefinitions],
+                         ['Class.f', 'Class.g'])
diff --git a/test/test_regression.py b/test/test_regression.py
index 5e111310..cc55773b 100755
--- a/test/test_regression.py
+++ b/test/test_regression.py
@@ -454,60 +454,6 @@ class TestFeature(TestBase):
         cache.parser_cache = temp_cache
 
 
-class TestGetDefinitions(TestBase):
-
-    def test_get_definitions_flat(self):
-        definitions = api.defined_names("""
-        import module
-        class Class:
-            pass
-        def func():
-            pass
-        data = None
-        """)
-        self.assertEqual([d.name for d in definitions],
-                         ['module', 'Class', 'func', 'data'])
-
-    def test_dotted_assignment(self):
-        definitions = api.defined_names("""
-        x = Class()
-        x.y.z = None
-        """)
-        self.assertEqual([d.name for d in definitions],
-                         ['x'])
-
-    def test_multiple_assignment(self):
-        definitions = api.defined_names("""
-        x = y = None
-        """)
-        self.assertEqual([d.name for d in definitions],
-                         ['x', 'y'])
-
-    def test_multiple_imports(self):
-        definitions = api.defined_names("""
-        from module import a, b
-        from another_module import *
-        """)
-        self.assertEqual([d.name for d in definitions],
-                         ['a', 'b'])
-
-    def test_nested_definitions(self):
-        definitions = api.defined_names("""
-        class Class:
-            def f():
-                pass
-            def g():
-                pass
-        """)
-        self.assertEqual([d.name for d in definitions],
-                         ['Class'])
-        subdefinitions = definitions[0].defined_names()
-        self.assertEqual([d.name for d in subdefinitions],
-                         ['f', 'g'])
-        self.assertEqual([d.full_name for d in subdefinitions],
-                         ['Class.f', 'Class.g'])
-
-
 class TestSpeed(TestBase):
     def _check_speed(time_per_run, number=4, run_warm=True):
         """ Speed checks should typically be very tolerant. Some machines are