test_elixir_symbol_retrieval.py•16.8 kB
"""
Tests for the Elixir language server symbol-related functionality.
These tests focus on the following methods:
- request_containing_symbol
- request_referencing_symbols
- request_defining_symbol
"""
import os
import pytest
from solidlsp import SolidLanguageServer
from solidlsp.ls_config import Language
from solidlsp.ls_types import SymbolKind
from . import NEXTLS_UNAVAILABLE, NEXTLS_UNAVAILABLE_REASON
# These marks will be applied to all tests in this module
pytestmark = [pytest.mark.elixir, pytest.mark.skipif(NEXTLS_UNAVAILABLE, reason=f"Next LS not available: {NEXTLS_UNAVAILABLE_REASON}")]
class TestElixirLanguageServerSymbols:
"""Test the Elixir language server's symbol-related functionality."""
@pytest.mark.parametrize("language_server", [Language.ELIXIR], indirect=True)
def test_request_containing_symbol_function(self, language_server: SolidLanguageServer) -> None:
"""Test request_containing_symbol for a function."""
# Test for a position inside the create_user function
file_path = os.path.join("lib", "services.ex")
# Find the create_user function in the file
content = language_server.retrieve_full_file_content(file_path)
lines = content.split("\n")
create_user_line = None
for i, line in enumerate(lines):
if "def create_user(" in line:
create_user_line = i + 2 # Go inside the function body
break
if create_user_line is None:
pytest.skip("Could not find create_user function")
containing_symbol = language_server.request_containing_symbol(file_path, create_user_line, 10, include_body=True)
# Verify that we found the containing symbol
if containing_symbol:
# Next LS returns the full function signature instead of just the function name
assert containing_symbol["name"] == "def create_user(pid, id, name, email, roles \\\\ [])"
assert containing_symbol["kind"] == SymbolKind.Method or containing_symbol["kind"] == SymbolKind.Function
if "body" in containing_symbol:
assert "def create_user" in containing_symbol["body"]
@pytest.mark.parametrize("language_server", [Language.ELIXIR], indirect=True)
def test_request_containing_symbol_module(self, language_server: SolidLanguageServer) -> None:
"""Test request_containing_symbol for a module."""
# Test for a position inside the UserService module but outside any function
file_path = os.path.join("lib", "services.ex")
# Find the UserService module definition
content = language_server.retrieve_full_file_content(file_path)
lines = content.split("\n")
user_service_line = None
for i, line in enumerate(lines):
if "defmodule UserService do" in line:
user_service_line = i + 1 # Go inside the module
break
if user_service_line is None:
pytest.skip("Could not find UserService module")
containing_symbol = language_server.request_containing_symbol(file_path, user_service_line, 5)
# Verify that we found the containing symbol
if containing_symbol:
assert "UserService" in containing_symbol["name"]
assert containing_symbol["kind"] == SymbolKind.Module or containing_symbol["kind"] == SymbolKind.Class
@pytest.mark.parametrize("language_server", [Language.ELIXIR], indirect=True)
def test_request_containing_symbol_nested(self, language_server: SolidLanguageServer) -> None:
"""Test request_containing_symbol with nested scopes."""
# Test for a position inside a function which is inside a module
file_path = os.path.join("lib", "services.ex")
# Find a function inside UserService
content = language_server.retrieve_full_file_content(file_path)
lines = content.split("\n")
function_body_line = None
for i, line in enumerate(lines):
if "def create_user(" in line:
function_body_line = i + 3 # Go deeper into the function body
break
if function_body_line is None:
pytest.skip("Could not find function body")
containing_symbol = language_server.request_containing_symbol(file_path, function_body_line, 15)
# Verify that we found the innermost containing symbol (the function)
if containing_symbol:
expected_names = ["create_user", "UserService"]
assert any(name in containing_symbol["name"] for name in expected_names)
@pytest.mark.parametrize("language_server", [Language.ELIXIR], indirect=True)
def test_request_containing_symbol_none(self, language_server: SolidLanguageServer) -> None:
"""Test request_containing_symbol for a position with no containing symbol."""
# Test for a position outside any function/module (e.g., in module doc)
file_path = os.path.join("lib", "services.ex")
# Line 1-3 are likely in module documentation or imports
containing_symbol = language_server.request_containing_symbol(file_path, 2, 10)
# Should return None or an empty dictionary, or the top-level module
# This is acceptable behavior for module-level positions
assert containing_symbol is None or containing_symbol == {} or "TestRepo.Services" in str(containing_symbol)
@pytest.mark.parametrize("language_server", [Language.ELIXIR], indirect=True)
def test_request_referencing_symbols_struct(self, language_server: SolidLanguageServer) -> None:
"""Test request_referencing_symbols for a struct."""
# Test referencing symbols for User struct
file_path = os.path.join("lib", "models.ex")
symbols = language_server.request_document_symbols(file_path).get_all_symbols_and_roots()
user_symbol = None
for symbol_group in symbols:
user_symbol = next((s for s in symbol_group if "User" in s.get("name", "")), None)
if user_symbol:
break
if not user_symbol or "selectionRange" not in user_symbol:
pytest.skip("User symbol or its selectionRange not found")
sel_start = user_symbol["selectionRange"]["start"]
ref_symbols = [
ref.symbol for ref in language_server.request_referencing_symbols(file_path, sel_start["line"], sel_start["character"])
]
if ref_symbols:
services_references = [
symbol
for symbol in ref_symbols
if "location" in symbol and "uri" in symbol["location"] and "services.ex" in symbol["location"]["uri"]
]
# We expect some references from services.ex
assert len(services_references) >= 0 # At least attempt to find references
@pytest.mark.parametrize("language_server", [Language.ELIXIR], indirect=True)
def test_request_referencing_symbols_none(self, language_server: SolidLanguageServer) -> None:
"""Test request_referencing_symbols for a position with no symbol."""
file_path = os.path.join("lib", "services.ex")
# Line 3 is likely a blank line or comment
try:
ref_symbols = [ref.symbol for ref in language_server.request_referencing_symbols(file_path, 3, 0)]
# If we get here, make sure we got an empty result
assert ref_symbols == [] or ref_symbols is None
except Exception:
# The method might raise an exception for invalid positions
# which is acceptable behavior
pass
# Tests for request_defining_symbol
@pytest.mark.parametrize("language_server", [Language.ELIXIR], indirect=True)
def test_request_defining_symbol_function_call(self, language_server: SolidLanguageServer) -> None:
"""Test request_defining_symbol for a function call."""
# Find a place where User.new is called in services.ex
file_path = os.path.join("lib", "services.ex")
content = language_server.retrieve_full_file_content(file_path)
lines = content.split("\n")
user_new_call_line = None
for i, line in enumerate(lines):
if "User.new(" in line:
user_new_call_line = i
break
if user_new_call_line is None:
pytest.skip("Could not find User.new call")
# Try to find the definition of User.new
defining_symbol = language_server.request_defining_symbol(file_path, user_new_call_line, 15)
if defining_symbol:
assert defining_symbol.get("name") == "new" or "User" in defining_symbol.get("name", "")
if "location" in defining_symbol and "uri" in defining_symbol["location"]:
assert "models.ex" in defining_symbol["location"]["uri"]
@pytest.mark.parametrize("language_server", [Language.ELIXIR], indirect=True)
def test_request_defining_symbol_struct_usage(self, language_server: SolidLanguageServer) -> None:
"""Test request_defining_symbol for a struct usage."""
# Find a place where User struct is used in services.ex
file_path = os.path.join("lib", "services.ex")
content = language_server.retrieve_full_file_content(file_path)
lines = content.split("\n")
user_usage_line = None
for i, line in enumerate(lines):
if "alias TestRepo.Models.{User" in line:
user_usage_line = i
break
if user_usage_line is None:
pytest.skip("Could not find User struct usage")
defining_symbol = language_server.request_defining_symbol(file_path, user_usage_line, 30)
if defining_symbol:
assert "User" in defining_symbol.get("name", "")
@pytest.mark.xfail(
reason="Known intermittent bug in Next LS v0.23.3: Protocol.UndefinedError for :timeout atom. "
"Occurs in CI environments but may pass locally. "
"See https://github.com/elixir-tools/next-ls/issues/543",
strict=False,
)
@pytest.mark.parametrize("language_server", [Language.ELIXIR], indirect=True)
def test_request_defining_symbol_none(self, language_server: SolidLanguageServer) -> None:
"""Test request_defining_symbol for a position with no symbol."""
# Test for a position with no symbol (e.g., whitespace or comment)
file_path = os.path.join("lib", "services.ex")
# Line 3 is likely a blank line
defining_symbol = language_server.request_defining_symbol(file_path, 3, 0)
# Should return None or empty
assert defining_symbol is None or defining_symbol == {}
@pytest.mark.parametrize("language_server", [Language.ELIXIR], indirect=True)
def test_symbol_methods_integration(self, language_server: SolidLanguageServer) -> None:
"""Test integration between different symbol methods."""
file_path = os.path.join("lib", "models.ex")
# Find User struct definition
content = language_server.retrieve_full_file_content(file_path)
lines = content.split("\n")
user_struct_line = None
for i, line in enumerate(lines):
if "defmodule User do" in line:
user_struct_line = i
break
if user_struct_line is None:
pytest.skip("Could not find User struct")
# Test containing symbol
containing = language_server.request_containing_symbol(file_path, user_struct_line + 5, 10)
if containing:
# Test that we can find references to this symbol
if "location" in containing and "range" in containing["location"]:
start_pos = containing["location"]["range"]["start"]
refs = [
ref.symbol for ref in language_server.request_referencing_symbols(file_path, start_pos["line"], start_pos["character"])
]
# We should find some references or none (both are valid outcomes)
assert isinstance(refs, list)
@pytest.mark.parametrize("language_server", [Language.ELIXIR], indirect=True)
def test_symbol_tree_structure(self, language_server: SolidLanguageServer) -> None:
"""Test that symbol tree structure is correctly built."""
symbol_tree = language_server.request_full_symbol_tree()
# Should get a tree structure
assert len(symbol_tree) > 0
# Should have our test repository structure
root = symbol_tree[0]
assert "children" in root
# Look for lib directory
lib_dir = None
for child in root["children"]:
if child["name"] == "lib":
lib_dir = child
break
if lib_dir:
# Next LS returns module names instead of file names (e.g., 'services' instead of 'services.ex')
file_names = [child["name"] for child in lib_dir.get("children", [])]
expected_modules = ["models", "services", "examples", "utils", "test_repo"]
found_modules = [name for name in expected_modules if name in file_names]
assert len(found_modules) > 0, f"Expected to find some modules from {expected_modules}, but got {file_names}"
@pytest.mark.parametrize("language_server", [Language.ELIXIR], indirect=True)
def test_request_dir_overview(self, language_server: SolidLanguageServer) -> None:
"""Test request_dir_overview functionality."""
lib_overview = language_server.request_dir_overview("lib")
# Should get an overview of the lib directory
assert lib_overview is not None
# Next LS returns keys like 'lib/services.ex' instead of just 'lib'
overview_keys = list(lib_overview.keys()) if hasattr(lib_overview, "keys") else []
lib_files = [key for key in overview_keys if key.startswith("lib/")]
assert len(lib_files) > 0, f"Expected to find lib/ files in overview keys: {overview_keys}"
# Should contain information about our modules
overview_text = str(lib_overview).lower()
expected_terms = ["models", "services", "user", "item"]
found_terms = [term for term in expected_terms if term in overview_text]
assert len(found_terms) > 0, f"Expected to find some terms from {expected_terms} in overview"
# @pytest.mark.parametrize("language_server", [Language.ELIXIR], indirect=True)
# def test_request_document_overview(self, language_server: SolidLanguageServer) -> None:
# """Test request_document_overview functionality."""
# # COMMENTED OUT: Next LS document overview doesn't contain expected terms
# # Next LS return value: [('TestRepo.Models', 2, 0, 0)] - only module info, no detailed content
# # Expected terms like 'user', 'item', 'order', 'struct', 'defmodule' are not present
# # This appears to be a limitation of Next LS document overview functionality
# #
# file_path = os.path.join("lib", "models.ex")
# doc_overview = language_server.request_document_overview(file_path)
#
# # Should get an overview of the models.ex file
# assert doc_overview is not None
#
# # Should contain information about our structs and functions
# overview_text = str(doc_overview).lower()
# expected_terms = ["user", "item", "order", "struct", "defmodule"]
# found_terms = [term for term in expected_terms if term in overview_text]
# assert len(found_terms) > 0, f"Expected to find some terms from {expected_terms} in overview"
@pytest.mark.parametrize("language_server", [Language.ELIXIR], indirect=True)
def test_containing_symbol_of_module_attribute(self, language_server: SolidLanguageServer) -> None:
"""Test containing symbol for module attributes."""
file_path = os.path.join("lib", "models.ex")
# Find a module attribute like @type or @doc
content = language_server.retrieve_full_file_content(file_path)
lines = content.split("\n")
attribute_line = None
for i, line in enumerate(lines):
if line.strip().startswith("@type") or line.strip().startswith("@doc"):
attribute_line = i
break
if attribute_line is None:
pytest.skip("Could not find module attribute")
containing_symbol = language_server.request_containing_symbol(file_path, attribute_line, 5)
if containing_symbol:
# Should be contained within a module
assert "name" in containing_symbol
# The containing symbol should be a module
expected_names = ["User", "Item", "Order", "TestRepo.Models"]
assert any(name in containing_symbol["name"] for name in expected_names)