Diagnostics, implementation and definition tools (WIP)

test/solidlsp/fsharp/test_fsharp_basic.py

@@ -7,7 +7,7 @@ import pytest
 from solidlsp import SolidLanguageServer
 from solidlsp.ls_config import Language
 from solidlsp.ls_utils import SymbolUtils
-from test.conftest import is_ci
+from test.conftest import find_identifier_position, get_repo_path, is_ci, language_has_verified_implementation_support
 from test.solidlsp.conftest import format_symbol_for_assert, has_malformed_name, request_all_symbols
 
 
@@ -39,6 +39,33 @@ class TestFSharpLanguageServer:
         symbol_names = [s.get("name") for s in symbols]
         assert "main" in symbol_names, "main function not found in Program.fs symbols"
 
+    if language_has_verified_implementation_support(Language.FSHARP):
+
+        @pytest.mark.parametrize("language_server", [Language.FSHARP], indirect=True)
+        def test_find_implementations(self, language_server: SolidLanguageServer) -> None:
+            repo_path = get_repo_path(Language.FSHARP)
+            pos = find_identifier_position(repo_path / "Formatter.fs", "FormatGreeting")
+            assert pos is not None, "Could not find IGreeter.FormatGreeting in fixture"
+
+            implementations = language_server.request_implementation("Formatter.fs", *pos)
+            assert implementations, "Expected at least one implementation of IGreeter.FormatGreeting"
+            assert any("Formatter.fs" in implementation.get("relativePath", "") for implementation in implementations), (
+                f"Expected ConsoleGreeter.FormatGreeting in implementations, got: {implementations}"
+            )
+
+        @pytest.mark.parametrize("language_server", [Language.FSHARP], indirect=True)
+        def test_request_implementing_symbols(self, language_server: SolidLanguageServer) -> None:
+            repo_path = get_repo_path(Language.FSHARP)
+            pos = find_identifier_position(repo_path / "Formatter.fs", "FormatGreeting")
+            assert pos is not None, "Could not find IGreeter.FormatGreeting in fixture"
+
+            implementing_symbols = language_server.request_implementing_symbols("Formatter.fs", *pos)
+            assert implementing_symbols, "Expected implementing symbols for IGreeter.FormatGreeting"
+            assert any(
+                symbol.get("name") == "FormatGreeting" and "Formatter.fs" in symbol["location"].get("relativePath", "")
+                for symbol in implementing_symbols
+            ), f"Expected ConsoleGreeter.FormatGreeting symbol, got: {implementing_symbols}"
+
     @pytest.mark.parametrize("language_server", [Language.FSHARP], indirect=True)
     def test_get_document_symbols_calculator(self, language_server: SolidLanguageServer) -> None:
         """Test getting document symbols from Calculator.fs file."""