import validateSky from './validate_sky';
import validateSpec from './validate';
import v8 from '../reference/v8.json' assert {type: 'json'};
import {SkySpecification} from '../types.g';

describe('Validate sky', () => {
    it('Should pass when value is undefined', () => {
        const errors = validateSky({validateSpec, value: undefined, styleSpec: v8, style: {} as any});
        expect(errors).toHaveLength(0);
    });

    test('Should return error when value is not an object', () => {
        const errors = validateSky({validateSpec, value: '' as unknown as SkySpecification, styleSpec: v8, style: {} as any});
        expect(errors).toHaveLength(1);
        expect(errors[0].message).toContain('object');
        expect(errors[0].message).toContain('expected');
    });

    test('Should return error in case of unknown property', () => {
        const errors = validateSky({validateSpec, value: {a: 1} as any, styleSpec: v8, style: {} as any});
        expect(errors).toHaveLength(1);
        expect(errors[0].message).toContain('a');
        expect(errors[0].message).toContain('unknown');
    });

    test('Should return errors according to spec violations', () => {
        const errors = validateSky({validateSpec, value: {'sky-color': 1 as any, 'fog-color': 2 as any, 'horizon-blend': {} as any, 'fog-blend': 'foo' as any}, styleSpec: v8, style: {} as any});
        expect(errors).toHaveLength(4);
        expect(errors[0].message).toBe('sky-color: color expected, number found');
        expect(errors[1].message).toBe('fog-color: color expected, number found');
        expect(errors[2].message).toBe('horizon-blend: missing required property "stops"');
        expect(errors[3].message).toBe('fog-blend: number expected, string found');
    });

    test('Should pass if everything is according to spec', () => {
        const errors = validateSky({validateSpec, value: {'sky-color': 'red', 'fog-color': '#123456', 'horizon-blend': 1, 'fog-blend': 0}, styleSpec: v8, style: {} as any});
        expect(errors).toHaveLength(0);
    });
});