const models = require('vn-loopback/server/server').models;
const LoopBackContext = require('loopback-context');

describe('ClaimBeginning model()', () => {
    const claimFk = 1;
    const activeCtx = {
        accessToken: {userId: 18},
        headers: {origin: 'localhost:5000'},
        __: () => {}
    };

    beforeEach(() => {
        spyOn(LoopBackContext, 'getCurrentContext').and.returnValue({
            active: activeCtx
        });
    });

    it('should change quantity claimed', async() => {
        const tx = await models.ClaimBeginning.beginTransaction({});

        let error;
        try {
            const options = {transaction: tx};
            const claim = await models.ClaimBeginning.findOne({where: {claimFk}}, options);
            const sale = await models.Sale.findById(claim.saleFk, {}, options);
            await claim.updateAttribute('quantity', sale.quantity - 1, options);

            await tx.rollback();
        } catch (e) {
            error = e;
            await tx.rollback();
        }

        expect(error).toBeUndefined();
    });

    it('should throw error when quantity claimed is greater than quantity of the sale', async() => {
        const tx = await models.ClaimBeginning.beginTransaction({});

        let error;
        try {
            const options = {transaction: tx};
            const claim = await models.ClaimBeginning.findOne({where: {claimFk}}, options);
            const sale = await models.Sale.findById(claim.saleFk, {}, options);
            await claim.updateAttribute('quantity', sale.quantity + 1, options);

            await tx.rollback();
        } catch (e) {
            error = e;
            await tx.rollback();
        }

        expect(error.toString()).toContain('The quantity claimed cannot be greater than the quantity of the line');
    });
});