angular-cn/packages/compiler-cli/ngcc/test/execution/utils_spec.ts

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/**
* @license
* Copyright Google Inc. All Rights Reserved.
*
* Use of this source code is governed by an MIT-style license that can be
* found in the LICENSE file at https://angular.io/license
*/
import {computeTaskDependencies, sortTasksByPriority} from '../../src/execution/tasks/utils';
import {createTasksAndGraph} from './helpers';
describe('execution utils', () => {
describe('computeTaskDependencies()', () => {
it('should throw, if there are multiple tasks that generate typings for a single entry-point',
() => {
const {tasks, graph} = createTasksAndGraph(2, 2, {
0: [], // Entry-point #0 does not depend on anything.
1: [0], // Entry-point #1 depends on #0.
});
tasks[1].processDts = true; // Tweak task #1 to also generate typings.
expect(() => computeTaskDependencies(tasks, graph))
.toThrowError(
'Invariant violated: Multiple tasks are assigned generating typings for ' +
'\'/path/to/entry/point/0\':\n' +
' - {entryPoint: entry-point-0, formatProperty: prop-0, processDts: true}\n' +
' - {entryPoint: entry-point-0, formatProperty: prop-1, processDts: true}');
});
it('should add non-typings tasks to the dependents of typings tasks', () => {
const {tasks, graph} = createTasksAndGraph(2, 2, {
0: [], // entry-point-0 does not depend on anything.
1: [0], // entry-point-1 depends on entry-point-0.
});
const dependents = computeTaskDependencies(tasks, graph);
// entry-point-0
expect(dependents.get(tasks[0])).toEqual(new Set([
tasks[1], // non-typings task for entry-point-0
tasks[2], // typings task for entry-point-1, which depends upon entry-point-0
tasks[3], // non-typings task for entry-point-1, which depends upon entry-point-0
]));
expect(dependents.get(tasks[1])).toBeUndefined();
// entry-point-1
expect(dependents.get(tasks[2])).toEqual(new Set([
tasks[3], // non-typings task for entry-point-1
]));
expect(dependents.get(tasks[3])).toBeUndefined();
});
});
describe('sortTasksByPriority', () => {
it('should return the tasks in their original order if there are no dependencies', () => {
const {tasks} = createTasksAndGraph(3, 1);
const sortedTasks = sortTasksByPriority(tasks, new Map());
expect(sortedTasks).toEqual(tasks);
});
it('should return the tasks ordered by how many tasks depend upon them', () => {
// Before sort:
// 0 blocks [3]
// 1 blocks [2, 3]
// 2 blocks []
// 3 blocks [4]
// 4 blocks []
const {tasks, graph} = createTasksAndGraph(5, 1, {0: [], 1: [], 2: [1], 3: [0, 1], 4: [3]});
const sortedTasks = sortTasksByPriority(tasks, computeTaskDependencies(tasks, graph));
// After sort:
// 1 blocks [2, 3]
// 0 blocks [3]
// 3 blocks [4]
// 2 blocks []
// 4 blocks []
expect(sortedTasks).toEqual([
tasks[1],
tasks[0],
tasks[3],
tasks[2],
tasks[4],
]);
});
});
});