"""ValidatorLoader tests.

Testing generic validator methods
"""
import pytest

from ows_product_physical.constant import header
from ows_product_physical.validation.raml_utils import find_in_raml
from ows_product_physical.validation.validation import api_definition


def test_header_validator_builds_proper_schema():
    """Test the method that converts RAML parsed headers into JSON schema.

    For our Draft3Validator class.
    """
    schema = find_in_raml(api_definition, '/product', 'post').header_schema()

    assert schema.get('properties').get(header.CORRELATION_ID).\
        get('type') == 'string'
    assert schema.get('properties').get(header.CONTENT_TYPE).\
        get('type') == 'string'
    assert schema.get('properties').get(header.GRASS_ACCOUNT_TYPE).\
        get('type') == 'string'
    assert schema.get('properties').get(header.GRASS_ACCOUNT_ID).\
        get('type') == 'string'


def test_header_validator_doesnt_load_properties_set_to_none():
    """Test that the converted RAML to JSON Schema loads.

    Should load into a Draft3Validator, and test that it didn't
    load any properties set to None.
    """
    schema = find_in_raml(api_definition, '/product', 'post').header_schema()

    # we know we didn't set the pattern property of Correlation-Id
    assert schema.get('properties').get('Correlation-Id').\
        get('pattern') is None


def test_body_validator_loads_from_raml():
    """Test that body validator loads with expected value."""
    schema = find_in_raml(api_definition, '/product', 'post').body_schema()

    assert schema.get('properties').get('product_code').get('type') == 'string'


def test_find_in_raml_loading_unknown_path_gets_key_error():
    """Test that error is raised with unknown path."""
    with pytest.raises(KeyError):
        find_in_raml(api_definition, '/foobarbaz', 'post')


def test_find_in_raml_loading_unknown_method_gets_key_error():
    """Test that error is raised with unknown method."""
    with pytest.raises(KeyError):
        find_in_raml(api_definition, '/product', 'patch')