Replace the NULL checks with the more specific and idiomatic NULL macros.
Reviewed-by: Brendan Higgins <brendanhiggins@google.com>
Reviewed-by: Daniel Latypov <dlatypov@google.com>
Signed-off-by: Ricardo Ribalda <ribalda@chromium.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
        KUNIT_EXPECT_NOT_ERR_OR_NULL(test, test);
        KUNIT_EXPECT_PTR_EQ(test, NULL, NULL);
        KUNIT_EXPECT_PTR_NE(test, test, NULL);
+       KUNIT_EXPECT_NULL(test, NULL);
+       KUNIT_EXPECT_NOT_NULL(test, test);
 
        /* String assertions */
        KUNIT_EXPECT_STREQ(test, "hi", "hi");
 
        KUNIT_EXPECT_NOT_ERR_OR_NULL(test,
                                     strstr(suite.log, "along with this."));
 #else
-       KUNIT_EXPECT_PTR_EQ(test, test->log, (char *)NULL);
+       KUNIT_EXPECT_NULL(test, test->log);
 #endif
 }