diff --git a/test/test_cache.py b/test/test_cache.py
index d94a78e0..79bdefca 100644
--- a/test/test_cache.py
+++ b/test/test_cache.py
@@ -2,15 +2,13 @@
 Test all things related to the ``jedi.cache`` module.
 """
 
-import jedi
 
-
-def test_cache_call_signatures():
+def test_cache_call_signatures(Script):
     """
     See github issue #390.
     """
     def check(column, call_name, path=None):
-        assert jedi.Script(s, 1, column, path).call_signatures()[0].name == call_name
+        assert Script(s, 1, column, path).call_signatures()[0].name == call_name
 
     s = 'str(int())'
 
@@ -26,6 +24,6 @@ def test_cache_call_signatures():
         check(4, 'str', 'boo')
 
 
-def test_cache_line_split_issues():
+def test_cache_line_split_issues(Script):
     """Should still work even if there's a newline."""
-    assert jedi.Script('int(\n').call_signatures()[0].name == 'int'
+    assert Script('int(\n').call_signatures()[0].name == 'int'
diff --git a/test/test_integration_keyword.py b/test/test_integration_keyword.py
index 9ed6d20c..7612d68e 100644
--- a/test/test_integration_keyword.py
+++ b/test/test_integration_keyword.py
@@ -2,10 +2,9 @@
 Test of keywords and ``jedi.keywords``
 """
 from jedi._compatibility import is_py3
-from jedi import Script
 
 
-def test_goto_assignments_keyword():
+def test_goto_assignments_keyword(Script):
     """
     Bug: goto assignments on ``in`` used to raise AttributeError::
 
@@ -14,7 +13,7 @@ def test_goto_assignments_keyword():
     Script('in').goto_assignments()
 
 
-def test_keyword():
+def test_keyword(Script):
     """ github jedi-vim issue #44 """
     defs = Script("print").goto_definitions()
     if is_py3:
diff --git a/test/test_speed.py b/test/test_speed.py
index dac98ac0..afd3e5a3 100644
--- a/test/test_speed.py
+++ b/test/test_speed.py
@@ -31,29 +31,29 @@ def _check_speed(time_per_run, number=4, run_warm=True):
 
 
 @_check_speed(0.2)
-def test_os_path_join():
+def test_os_path_join(Script):
     s = "from posixpath import join; join('', '')."
-    assert len(jedi.Script(s).completions()) > 10  # is a str completion
+    assert len(Script(s).completions()) > 10  # is a str completion
 
 
 @_check_speed(0.15)
-def test_scipy_speed():
+def test_scipy_speed(Script):
     s = 'import scipy.weave; scipy.weave.inline('
-    script = jedi.Script(s, 1, len(s), '')
+    script = Script(s, 1, len(s), '')
     script.call_signatures()
     #print(jedi.imports.imports_processed)
 
 
 @_check_speed(0.8)
 @cwd_at('test')
-def test_precedence_slowdown():
+def test_precedence_slowdown(Script):
     """
     Precedence calculation can slow down things significantly in edge
     cases. Having strange recursion structures increases the problem.
     """
     with open('speed/precedence.py') as f:
         line = len(f.read().splitlines())
-    assert jedi.Script(line=line, path='speed/precedence.py').goto_definitions()
+    assert Script(line=line, path='speed/precedence.py').goto_definitions()
 
 
 @_check_speed(0.1)