fix log tests and README

Author: lslusarczyk

README.md

@@ -128,7 +128,7 @@ List of options provided by CMake:
 | UMF_BUILD_EXAMPLES | Build UMF examples | ON/OFF | ON |
 | UMF_BUILD_FUZZTESTS | Build UMF fuzz tests (supported only on Linux with Clang) | ON/OFF | OFF |
 | UMF_BUILD_GPU_EXAMPLES | Build UMF GPU examples | ON/OFF | OFF |
-| UMF_DEVELOPER_MODE | Enable additional developer checks | ON/OFF | OFF |
+| UMF_DEVELOPER_MODE | Enable additional developer checks and logs | ON/OFF | OFF |
 | UMF_FORMAT_CODE_STYLE | Add clang, cmake, and black -format-check and -format-apply targets to make | ON/OFF | OFF |
 | UMF_TESTS_FAIL_ON_SKIP | Treat skips in tests as fail | ON/OFF | OFF |
 | UMF_USE_ASAN | Enable AddressSanitizer checks | ON/OFF | OFF |

test/utils/utils_log.cpp

@@ -31,9 +31,11 @@ int fput_count = 0;
 
 int mock_fputs(const char *s, FILE *stream) {
     fput_count++;
+#ifndef UMF_DEVELOPER_MODE
     if (!expected_message.empty()) {
         EXPECT_STREQ(s, expected_message.c_str());
     }
+#endif
     EXPECT_EQ(stream, expected_stream);
     return (int)strlen(s);
 }