muttley/src/render.t.js

Monitor Unit Test Tool

"use strict";
var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
const sinon_1 = __importDefault(require("sinon"));
const assert = require("assert");
const render = require("./render");
const fs = require("fs");
describe('render', function () {
    describe('renderHeader', function () {
        it('it calls write', function () {
            const fakeWrite = sinon_1.default.fake();
            sinon_1.default.replace(process.stdout, 'write', fakeWrite);
            render.renderHeader(100, 10, 12, 93982);
            assert(fakeWrite.called);
            sinon_1.default.restore();
        });
    });
    describe('renderTable', function () {
        it('it handles empty table', function () {
            const fakeWrite = sinon_1.default.fake();
            sinon_1.default.replace(process.stdout, 'write', fakeWrite);
            render.renderTable({ columns: [], rows: [], rowColour: () => render.FgColour.blue });
            assert(fakeWrite.calledOnce);
            sinon_1.default.restore();
        });
        it('it handles non empty table', function () {
            const columns = [{ name: 'TEST', width: 10, just: 'l', func: (row) => row.prop1 }];
            const rows = [{ prop1: 'test prop' }];
            const fakeWrite = sinon_1.default.fake();
            sinon_1.default.replace(process.stdout, 'write', fakeWrite);
            render.renderTable({ columns, rows, rowColour: () => render.FgColour.blue });
            const expectedHeaderWrites = 1;
            const expectedRowWrites = 3 * rows.length;
            assert.equal(fakeWrite.callCount, expectedHeaderWrites + expectedRowWrites);
            sinon_1.default.restore();
        });
    });
    describe('renderFileWindow', function () {
        it('it works for small window', function () {
            const buffer = 'line 1\nline 2\nline3\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n';
            sinon_1.default.replace(fs, 'readFileSync', sinon_1.default.fake.returns(buffer));
            const fakeWrite = sinon_1.default.fake();
            sinon_1.default.replace(process.stdout, 'write', fakeWrite);
            render.renderFileWindow('ignore', 10, 15);
            assert(fakeWrite.called);
            sinon_1.default.restore();
        });
        it('it works for big window', function () {
            const buffer = 'line 1\nline 2\nline3\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n';
            sinon_1.default.replace(fs, 'readFileSync', sinon_1.default.fake.returns(buffer));
            const fakeWrite = sinon_1.default.fake();
            sinon_1.default.replace(process.stdout, 'write', fakeWrite);
            render.renderFileWindow('ignore', 200, 15);
            assert(fakeWrite.called);
            sinon_1.default.restore();
        });
    });
});
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