@maplibre/maplibre-gl-style-spec/src/validate/validate_variable_anchor_offset_collection.test.ts

a specification for maplibre styles

import {validate} from './validate';
import {validateVariableAnchorOffsetCollection} from './validate_variable_anchor_offset_collection';
import {latest} from '../reference/latest';
import {describe, test, expect} from 'vitest';

describe('Validate variableAnchorOffsetCollection', () => {
    const validateOpts = {
        validateSpec: validate,
        styleSpec: latest,
        key: 'myProp'
    };
    test('Should return error if type is not array', () => {
        let errors = validateVariableAnchorOffsetCollection({...validateOpts, value: '3'});
        expect(errors).toHaveLength(1);
        expect(errors[0].message).toBe(
            'myProp: variableAnchorOffsetCollection requires a non-empty array of even length'
        );

        errors = validateVariableAnchorOffsetCollection({...validateOpts, value: 3});
        expect(errors).toHaveLength(1);
        expect(errors[0].message).toBe(
            'myProp: variableAnchorOffsetCollection requires a non-empty array of even length'
        );

        errors = validateVariableAnchorOffsetCollection({...validateOpts, value: true});
        expect(errors).toHaveLength(1);
        expect(errors[0].message).toBe(
            'myProp: variableAnchorOffsetCollection requires a non-empty array of even length'
        );

        errors = validateVariableAnchorOffsetCollection({...validateOpts, value: null});
        expect(errors).toHaveLength(1);
        expect(errors[0].message).toBe(
            'myProp: variableAnchorOffsetCollection requires a non-empty array of even length'
        );

        errors = validateVariableAnchorOffsetCollection({...validateOpts, value: {x: 1, y: 1}});
        expect(errors).toHaveLength(1);
        expect(errors[0].message).toBe(
            'myProp: variableAnchorOffsetCollection requires a non-empty array of even length'
        );
    });

    test('Should return error if array has invalid length', () => {
        let errors = validateVariableAnchorOffsetCollection({...validateOpts, value: []});
        expect(errors).toHaveLength(1);
        expect(errors[0].message).toBe(
            'myProp: variableAnchorOffsetCollection requires a non-empty array of even length'
        );

        errors = validateVariableAnchorOffsetCollection({...validateOpts, value: [3]});
        expect(errors).toHaveLength(1);
        expect(errors[0].message).toBe(
            'myProp: variableAnchorOffsetCollection requires a non-empty array of even length'
        );

        errors = validateVariableAnchorOffsetCollection({
            ...validateOpts,
            value: ['top', [0, 0], 'bottom']
        });
        expect(errors).toHaveLength(1);
        expect(errors[0].message).toBe(
            'myProp: variableAnchorOffsetCollection requires a non-empty array of even length'
        );
    });

    test('Should return error if array contains invalid anchor', () => {
        let errors = validateVariableAnchorOffsetCollection({
            ...validateOpts,
            value: ['dennis', [0, 0]]
        });
        expect(errors).toHaveLength(1);
        expect(errors[0].message).toBe(
            'myProp[0]: expected one of [center, left, right, top, bottom, top-left, top-right, bottom-left, bottom-right], "dennis" found'
        );

        errors = validateVariableAnchorOffsetCollection({
            ...validateOpts,
            value: ['top', [0, 0], 'dennis', [1, 1], 'not-dennis', [2, 2]]
        });
        expect(errors).toHaveLength(2);
        expect(errors[0].message).toBe(
            'myProp[2]: expected one of [center, left, right, top, bottom, top-left, top-right, bottom-left, bottom-right], "dennis" found'
        );
        expect(errors[1].message).toBe(
            'myProp[4]: expected one of [center, left, right, top, bottom, top-left, top-right, bottom-left, bottom-right], "not-dennis" found'
        );
    });

    test('Should return error if array contains invalid offset', () => {
        let errors = validateVariableAnchorOffsetCollection({
            ...validateOpts,
            value: ['top', 'bottom']
        });
        expect(errors).toHaveLength(1);
        expect(errors[0].message).toBe('myProp[1]: array expected, string found');

        errors = validateVariableAnchorOffsetCollection({...validateOpts, value: ['top', null]});
        expect(errors).toHaveLength(1);
        expect(errors[0].message).toBe('myProp[1]: array expected, null found');

        errors = validateVariableAnchorOffsetCollection({...validateOpts, value: ['top', 3]});
        expect(errors).toHaveLength(1);
        expect(errors[0].message).toBe('myProp[1]: array expected, number found');

        errors = validateVariableAnchorOffsetCollection({...validateOpts, value: ['top', []]});
        expect(errors).toHaveLength(1);
        expect(errors[0].message).toBe('myProp[1]: array length 2 expected, length 0 found');

        errors = validateVariableAnchorOffsetCollection({
            ...validateOpts,
            value: ['top', ['a', 'b']]
        });
        expect(errors).toHaveLength(2);
        expect(errors[0].message).toBe('myProp[1][0]: number expected, string found');
        expect(errors[1].message).toBe('myProp[1][1]: number expected, string found');

        errors = validateVariableAnchorOffsetCollection({
            ...validateOpts,
            value: ['top', [0, NaN]]
        });
        expect(errors).toHaveLength(1);
        expect(errors[0].message).toBe('myProp[1][1]: number expected, NaN found');
    });

    test('Should pass if array alternates enum and point valies', () => {
        let errors = validateVariableAnchorOffsetCollection({
            ...validateOpts,
            value: ['top', [0, 0]]
        });
        expect(errors).toHaveLength(0);

        errors = validateVariableAnchorOffsetCollection({
            ...validateOpts,
            value: ['top', [0, 0], 'bottom', [1, 1]]
        });
        expect(errors).toHaveLength(0);

        errors = validateVariableAnchorOffsetCollection({
            ...validateOpts,
            value: ['top', [0, 0], 'bottom', [1, 1], 'top-left', [2, 2], 'bottom', [3, 3]]
        });
        expect(errors).toHaveLength(0);
    });
});