Make integration test a unit test

I don't know why I implemented it as an integration test.

.github/workflows/ci.yml

@@ -48,25 +48,23 @@ jobs:
       - name: Prepare test resources
         shell: bash
         run: |
-          cd tests
+          mkdir tests
 
           curl -sSfLO 'https://github.com/Ortham/testing-plugins/archive/1.4.0.zip'
           7z x 1.4.0.zip
-          mv testing-plugins-1.4.0 testing-plugins
+          mv testing-plugins-1.4.0 tests/testing-plugins
 
           curl -sSfLO 'https://github.com/loot/libloot/releases/download/0.18.2/libloot-0.18.2-0-gb1a9e31_0.18.2-win32.7z'
           7z x libloot-0.18.2-0-gb1a9e31_0.18.2-win32.7z
-          mv libloot-0.18.2-0-gb1a9e31_0.18.2-win32 libloot_win32
+          mv libloot-0.18.2-0-gb1a9e31_0.18.2-win32 tests/libloot_win32
 
           curl -sSfLO 'https://github.com/loot/libloot/releases/download/0.18.2/libloot-0.18.2-0-gb1a9e31_0.18.2-win64.7z'
           7z x libloot-0.18.2-0-gb1a9e31_0.18.2-win64.7z
-          mv libloot-0.18.2-0-gb1a9e31_0.18.2-win64 libloot_win64
+          mv libloot-0.18.2-0-gb1a9e31_0.18.2-win64 tests/libloot_win64
 
           curl -sSfLO 'https://github.com/loot/loot-api-python/releases/download/4.0.2/loot_api_python-4.0.2-0-gd356ac2_master-python2.7-win32.7z'
           7z x loot_api_python-4.0.2-0-gd356ac2_master-python2.7-win32.7z
-          mv loot_api_python-4.0.2-0-gd356ac2_master-python2.7-win32 loot_api_python
-
-          cd ..
+          mv loot_api_python-4.0.2-0-gd356ac2_master-python2.7-win32 tests/loot_api_python
 
       - name: Build and run tests
         run: cargo test --workspace
@@ -91,8 +89,6 @@ jobs:
       - name: Build and run C++ tests
         shell: bash
         run: |
-          mkdir ffi/build
-          cd ffi/build
-          cmake ..
-          cmake --build .
-          ctest
+          cmake cmake -B ffi/build ffi
+          cmake --build ffi/build
+          ctest --test-dir ffi/build

src/lib.rs

@@ -406,6 +406,32 @@ mod tests {
         );
     }
 
+    #[test]
+    fn expression_parsing_should_ignore_whitespace_between_function_arguments() {
+        let is_ok = |s: &str| Expression::from_str(s).is_ok();
+
+        assert!(is_ok("version(\"Cargo.toml\", \"1.2\", ==)"));
+        assert!(is_ok(
+            "version(\"Unofficial Oblivion Patch.esp\",\"3.4.0\",>=)"
+        ));
+        assert!(is_ok(
+            "version(\"Unofficial Skyrim Patch.esp\", \"2.0\", >=)"
+        ));
+        assert!(is_ok("version(\"..\\TESV.exe\", \"1.8\", >) and not checksum(\"EternalShineArmorAndWeapons.esp\",3E85A943)"));
+        assert!(is_ok("version(\"..\\TESV.exe\",\"1.8\",>) and not checksum(\"EternalShineArmorAndWeapons.esp\",3E85A943)"));
+        assert!(is_ok("checksum(\"HM_HotkeyMod.esp\",374C564C)"));
+        assert!(is_ok("checksum(\"HM_HotkeyMod.esp\",CF00AFFD)"));
+        assert!(is_ok(
+            "checksum(\"HM_HotkeyMod.esp\",374C564C) or checksum(\"HM_HotkeyMod.esp\",CF00AFFD)"
+        ));
+        assert!(is_ok("( checksum(\"HM_HotkeyMod.esp\",374C564C) or checksum(\"HM_HotkeyMod.esp\",CF00AFFD) )"));
+        assert!(is_ok("file(\"UFO - Ultimate Follower Overhaul.esp\")"));
+        assert!(is_ok("( checksum(\"HM_HotkeyMod.esp\",374C564C) or checksum(\"HM_HotkeyMod.esp\",CF00AFFD) ) and file(\"UFO - Ultimate Follower Overhaul.esp\")"));
+        assert!(is_ok(
+            "many(\"Deeper Thoughts (\\(Curie\\)|- (Expressive )?Curie)\\.esp\")"
+        ));
+    }
+
     #[test]
     fn compound_condition_parse_should_handle_a_single_condition() {
         let result = CompoundCondition::parse("file(\"Cargo.toml\")").unwrap().1;