Rust: add none compression integration test

Author: Paolo Tranquilli

rust/ql/integration-tests/hello-project/test_project.py

@@ -19,14 +19,25 @@ def test_do_not_print_env(codeql, rust, rust_edition, cargo, check_env_not_dumpe
 
 @pytest.mark.ql_test("steps.ql", expected=".cargo.expected")
 @pytest.mark.parametrize(("rust_edition", "compression", "suffix"), [
-    pytest.param(2024, "gzip", ".gz", id="gzip"),
-    pytest.param(2024, "zstd", ".zst", id="zstd"),
+    pytest.param(2024, "none", [], id="none"),
+    pytest.param(2024, "gzip", [".gz"], id="gzip"),
+    pytest.param(2024, "zstd", [".zst"], id="zstd"),
 ])
 def test_compression(codeql, rust, rust_edition, compression, suffix, cargo, rust_check_diagnostics, cwd):
-    codeql.database.create(cleanup=False, _env={
-        "CODEQL_EXTRACTOR_RUST_TRAP_COMPRESSION": compression,
-    })
+    codeql.database.create(
+        _env={
+            "CODEQL_EXTRACTOR_RUST_OPTION_TRAP_COMPRESSION": compression,
+        }
+    )
     trap_files = [*(cwd / "test-db" / "trap").rglob("*.trap*")]
-    assert trap_files
-    files_with_wrong_format = [f for f in trap_files if f.suffix != suffix and f.name != "metadata.trap.gz"]
-    assert not files_with_wrong_format, f"Found trap files with wrong format: {files_with_wrong_format}"
+    assert trap_files, "No trap files found"
+    expected_suffixes = [".trap"] + suffix
+
+    def is_of_expected_format(file):
+        return file.name == "metadata.trap.gz" or \
+            file.suffixes[-len(expected_suffixes):] == expected_suffixes
+
+    files_with_wrong_format = [
+        f for f in trap_files if not is_of_expected_format(f)
+    ]
+    assert not files_with_wrong_format, f"Found trap files with wrong format"