fix: don't modify by injecting defaults

Signed-off-by: Henry Schreiner <henryschreineriii@gmail.com>

src/validate_pyproject/api.py

@@ -246,7 +246,9 @@ def formats(self) -> Mapping[str, FormatValidationFn]:
     def generated_code(self) -> str:
         if self._code_cache is None:
             fmts = dict(self.formats)
-            self._code_cache = FJS.compile_to_code(self.schema, self.handlers, fmts)
+            self._code_cache = FJS.compile_to_code(
+                self.schema, self.handlers, fmts, use_default=False
+            )
 
         return self._code_cache
 
@@ -259,7 +261,9 @@ def __call__(self, pyproject: T) -> T:
         and raises an exception when it is not a valid.
         """
         if self._cache is None:
-            compiled = FJS.compile(self.schema, self.handlers, dict(self.formats))
+            compiled = FJS.compile(
+                self.schema, self.handlers, dict(self.formats), use_default=False
+            )
             fn = partial(compiled, custom_formats=self._format_validators)
             self._cache = typing.cast(ValidationFn, fn)
 

tests/test_examples.py

@@ -1,3 +1,4 @@
+import copy
 import logging
 from pathlib import Path
 
@@ -14,8 +15,10 @@ def test_examples_api(example: Path) -> None:
     load_tools = get_tools(example)
 
     toml_equivalent = tomllib.loads(example.read_text())
+    copy_toml = copy.deepcopy(toml_equivalent)
     validator = api.Validator(extra_plugins=load_tools)
     assert validator(toml_equivalent) is not None
+    assert toml_equivalent == copy_toml
 
 
 def test_examples_cli(example: Path) -> None:

tests/test_pre_compile.py

@@ -15,7 +15,7 @@
 
 from .helpers import error_file, get_tools, get_tools_as_args
 
-MAIN_FILE = "hello_world.py"  # Let's use something different that `__init__.py`
+MAIN_FILE = "hello_world.py"  # Let's use something different than `__init__.py`
 
 
 def _pre_compile_checks(path: Path):