Single Test_case redefined

**Describe the bug**
I write only one test case but still get this error:
```
/home/../cmake-build-debug/test/someTest -r xml -d yes --order lex "Subdivide row dense vector scenario"
Testing started at 10:17 ...
error: TEST_CASE( "Subdivide row dense vector scenario" ) already defined.
First seen at /home/../test/presolve/someTest.cpp:9
Redefined at /home/../test/presolve/someTest.cpp:9
Process finished with exit code 255
```

the test case is quite simple
```
#define CATCH_CONFIG_MAIN

#include

TEST_CASE("Subdivide row dense vector scenario") {
REQUIRE(1 == 3);
}

```

**Expected behavior**
test success

**Reproduction steps**
I installed catch2 by cmake install in /usr/local

**Platform information:**

- OS: CentOS
- Compiler+version: **GCC v8.3.1 20191121 **
- Catch version: **v2.13.4**

**Additional context**
Add any other context about the problem here.