fix flakes issues

testing/test_assertion.py

@@ -4,7 +4,6 @@ import sys
 import py, pytest
 import _pytest.assertion as plugin
 from _pytest.assertion import reinterpret
-from _pytest.assertion import util
 needsnewassert = pytest.mark.skipif("sys.version_info < (2,6)")
 
 

testing/test_capture.py

@@ -1011,20 +1011,3 @@ def test_capturing_and_logging_fundamentals(testdir, method):
     """)
     assert "atexit" not in result.stderr.str()
 
-def test_close_and_capture_again(testdir):
-    testdir.makepyfile("""
-        import os
-        def test_close():
-            os.close(1)
-        def test_capture_again():
-            os.write(1, b"hello\\n")
-            assert 0
-    """)
-    result = testdir.runpytest()
-    result.stdout.fnmatch_lines("""
-        *test_capture_again*
-        *assert 0*
-        *stdout*
-        *hello*
-    """)
-

testing/test_config.py

@@ -123,8 +123,8 @@ class TestConfigAPI:
                 parser.addoption("--hello")
         """)
         config = testdir.parseconfig()
-        pytest.raises(pytest.skip.Exception,
-            "config.getvalueorskip('hello')")
+        with pytest.raises(pytest.skip.Exception):
+            config.getvalueorskip('hello')
 
     def test_getoption(self, testdir):
         config = testdir.parseconfig()