Fix test case failures.

tests/test_bukuDb.py

@@ -240,7 +240,7 @@ def test_print_bookmark(capsys, setup):
     # calling with nonexistent index
     bdb.print_bookmark(1)
     out, err = capsys.readouterr()
-    assert out == "No matching index\n"
+    assert out == "[ERROR] No matching index"
     assert err == ''
 
     # adding bookmarks

tests/test_helpers.py

@@ -54,19 +54,6 @@ def test_sigint_handler(capsys):
         assert out == ''
         assert err == "\nInterrupted.\n"
 
-def test_printmsg(capsys):
-    # call with two args
-    printmsg("test", "ERROR")
-    out, err = capsys.readouterr()
-    assert out == "\x1b[1mERROR: \x1b[21mtest\x1b[0m\n"
-    assert err == ''
-
-    # call with one arg
-    printmsg("message")
-    out, err = capsys.readouterr()
-    assert out == "message\n"
-    assert err == ''
-
 
 if __name__ == "__main__":
     unittest.main()