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arrow.spec.ts
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arrow.spec.ts
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/* eslint-disable max-len */
const jssm = require('../jssm');
describe('arrow_direction', () => {
const lefts = ['<-', '<=', '<~', '←', '⇐', '↚'],
rights = ['->', '=>', '~>', '→', '⇒', '↛'],
boths = ['<->', '<=>', '<~>',
'<-=>', '<-~>', '<=->', '<=~>', '<~->', '<~=>',
'←⇒', '←↛', '⇐→', '⇐↛', '↚→', '↚⇒',
'←=>', '←~>', '⇐->', '⇐~>', '↚->', '↚=>',
'<-⇒', '<-↛', '<=→', '<=↛', '<~→', '<~⇒' ],
check = (lab, dir) =>
it(lab, () =>
expect( jssm.arrow_direction(lab) ).toBe(dir) );
lefts.map( e => check(e, 'left') );
rights.map( e => check(e, 'right') );
boths.map( e => check(e, 'both') );
/*
test('<-', () => expect(jssm.arrow_direction('<-') ).toBe('left') );
test('<=', () => expect(jssm.arrow_direction('<=') ).toBe('left') );
test('<~', () => expect(jssm.arrow_direction('<~') ).toBe('left') );
test('->', () => expect(jssm.arrow_direction('->') ).toBe('right') );
test('=>', () => expect(jssm.arrow_direction('=>') ).toBe('right') );
test('~>', () => expect(jssm.arrow_direction('~>') ).toBe('right') );
test('<->', () => expect(jssm.arrow_direction('<->') ).toBe('both') );
test('<=>', () => expect(jssm.arrow_direction('<=>') ).toBe('both') );
test('<~>', () => expect(jssm.arrow_direction('<~>') ).toBe('both') );
test('<-=>', () => expect(jssm.arrow_direction('<-=>') ).toBe('both') );
test('<=->', () => expect(jssm.arrow_direction('<=->') ).toBe('both') );
test('<-~>', () => expect(jssm.arrow_direction('<-~>') ).toBe('both') );
test('<~->', () => expect(jssm.arrow_direction('<~->') ).toBe('both') );
test('<=~>', () => expect(jssm.arrow_direction('<=~>') ).toBe('both') );
test('<~=>', () => expect(jssm.arrow_direction('<~=>') ).toBe('both') );
*/
});
describe('arrow_left_kind', () => {
test('->', () => expect(jssm.arrow_left_kind('->') ).toBe('none') );
test('=>', () => expect(jssm.arrow_left_kind('=>') ).toBe('none') );
test('~>', () => expect(jssm.arrow_left_kind('~>') ).toBe('none') );
test('<-', () => expect(jssm.arrow_left_kind('<-') ).toBe('legal') );
test('<->', () => expect(jssm.arrow_left_kind('<->') ).toBe('legal') );
test('<-=>', () => expect(jssm.arrow_left_kind('<-=>') ).toBe('legal') );
test('<-~>', () => expect(jssm.arrow_left_kind('<-~>') ).toBe('legal') );
test('<=', () => expect(jssm.arrow_left_kind('<=') ).toBe('main') );
test('<=>', () => expect(jssm.arrow_left_kind('<=>') ).toBe('main') );
test('<=->', () => expect(jssm.arrow_left_kind('<=->') ).toBe('main') );
test('<=~>', () => expect(jssm.arrow_left_kind('<=~>') ).toBe('main') );
test('<~', () => expect(jssm.arrow_left_kind('<~') ).toBe('forced') );
test('<~>', () => expect(jssm.arrow_left_kind('<~>') ).toBe('forced') );
test('<~->', () => expect(jssm.arrow_left_kind('<~->') ).toBe('forced') );
test('<~=>', () => expect(jssm.arrow_left_kind('<~=>') ).toBe('forced') );
});
describe('arrow_right_kind', () => {
test('<-', () => expect(jssm.arrow_right_kind('<-') ).toBe('none') );
test('<=', () => expect(jssm.arrow_right_kind('<=') ).toBe('none') );
test('<~', () => expect(jssm.arrow_right_kind('<~') ).toBe('none') );
test('->', () => expect(jssm.arrow_right_kind('->') ).toBe('legal') );
test('<->', () => expect(jssm.arrow_right_kind('<->') ).toBe('legal') );
test('<=->', () => expect(jssm.arrow_right_kind('<=->') ).toBe('legal') );
test('<~->', () => expect(jssm.arrow_right_kind('<~->') ).toBe('legal') );
test('=>', () => expect(jssm.arrow_right_kind('=>') ).toBe('main') );
test('<=>', () => expect(jssm.arrow_right_kind('<=>') ).toBe('main') );
test('<-=>', () => expect(jssm.arrow_right_kind('<-=>') ).toBe('main') );
test('<~=>', () => expect(jssm.arrow_right_kind('<~=>') ).toBe('main') );
test('~>', () => expect(jssm.arrow_right_kind('~>') ).toBe('forced') );
test('<~>', () => expect(jssm.arrow_right_kind('<~>') ).toBe('forced') );
test('<-~>', () => expect(jssm.arrow_right_kind('<-~>') ).toBe('forced') );
test('<=~>', () => expect(jssm.arrow_right_kind('<=~>') ).toBe('forced') );
});
describe('arrow error catchery', () => {
test('unknown arrow direction throws', () =>
expect( () => jssm.arrow_direction('boop') ).toThrow() );
test('unknown arrow left kind throws', () =>
expect( () => jssm.arrow_left_kind('boop') ).toThrow() );
test('unknown arrow right kind throws', () =>
expect( () => jssm.arrow_right_kind('boop') ).toThrow() );
});
// stochable