import mergeQueueDefinitions from "./mergeQueueDefinitions";
import {queueDef} from "../testHelpers";

describe('mergeQueueDefinitions', () => {
    const func = mergeQueueDefinitions

    it('handles empty queue definitions', () => {
        expect(func([])).toEqual([])
    })
    it('does not merge queue definitions with different names', () => {
        const defs = [
            queueDef({name: 'queue1', handlerFunctions: ['f1']}),
            queueDef({name: 'queue2', handlerFunctions: ['f2']}),
            queueDef({name: 'queue3', handlerFunctions: ['f3']}),
        ]

        const merged = func(defs)
        expect(merged.length).toBe(3)
        expect(merged[0]).toEqual(defs[0])
        expect(merged[1]).toEqual(defs[1])
        expect(merged[2]).toEqual(defs[2])
        expect(func([])).toEqual([])
    })
    it('merges queue definitions with the same names', () => {
        const defs = [
            queueDef({name: 'queue1', handlerFunctions: ['f1'], aliases: ['ff1', 'ff1a']}),
            queueDef({name: 'queue1', handlerFunctions: ['f1'], aliases: ['ff1a', 'ff1b']}),
            queueDef({name: 'queue1', handlerFunctions: ['f2']}),
            queueDef({name: 'queue3', handlerFunctions: ['f3']}),
        ]

        const merged = func(defs)
        expect(merged.length).toBe(2)
        expect(merged[0].name).toEqual('queue1')

        expect(merged[0].handlerFunctions.length).toBe(2)
        expect(merged[0].handlerFunctions).toContain('f1')
        expect(merged[0].handlerFunctions).toContain('f2')

        expect(merged[0].aliases.length).toBe(3)
        expect(merged[0].aliases).toContain('ff1')
        expect(merged[0].aliases).toContain('ff1a')
        expect(merged[0].aliases).toContain('ff1b')


        expect(merged[1].name).toEqual('queue3')
        expect(merged[1].handlerFunctions.length).toBe(1)
        expect(merged[1].handlerFunctions).toContain('f3')
        expect(merged[1].aliases.length).toBe(0)
    })
})