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from __future__ import annotations
from datamodel_code_generator.format import PythonVersionMin
from datamodel_code_generator.imports import (
IMPORT_LITERAL,
IMPORT_OPTIONAL,
)
from datamodel_code_generator.types import DataType
def test_imports_with_literal_one() -> None:
"""Test imports for a DataType with single literal value"""
data_type = DataType(literals=[""], python_version=PythonVersionMin)
# Convert iterator to list for assertion
imports = list(data_type.imports)
assert IMPORT_LITERAL in imports
assert len(imports) == 1
def test_imports_with_literal_one_and_optional() -> None:
"""Test imports for an optional DataType with single literal value"""
data_type = DataType(literals=[""], is_optional=True, python_version=PythonVersionMin)
imports = list(data_type.imports)
assert IMPORT_LITERAL in imports
assert IMPORT_OPTIONAL in imports
assert len(imports) == 2
def test_imports_with_literal_empty() -> None:
"""Test imports for a DataType with no literal values"""
data_type = DataType(literals=[], python_version=PythonVersionMin)
imports = list(data_type.imports)
assert len(imports) == 0
def test_imports_with_nested_dict_key() -> None:
"""Test imports for a DataType with dict_key containing literals"""
dict_key_type = DataType(literals=["key"], python_version=PythonVersionMin)
data_type = DataType(python_version=PythonVersionMin, dict_key=dict_key_type)
imports = list(data_type.imports)
assert IMPORT_LITERAL in imports
assert len(imports) == 1
def test_imports_without_duplicate_literals() -> None:
"""Test that literal import is not duplicated"""
dict_key_type = DataType(literals=["key1"], python_version=PythonVersionMin)
data_type = DataType(
literals=["key2"],
python_version=PythonVersionMin,
dict_key=dict_key_type,
)
imports = list(data_type.imports)
assert IMPORT_LITERAL in imports
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