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https://github.com/angular/angular
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c07805612f
A lot of our tests are wrapped in `{}` which serves no purpose, aside from increasing the nesting level and, in some cases, causing confusion. The braces appear to be a leftover from a time when all tests were wrapped in a `function main() {}`. The function declaration was removed in #21053, but the braces remained, presumably because it was easier to search&replace for `function main()`, but not to remove the braces at the same time.
PR Close #52239
66 lines
2.5 KiB
TypeScript
66 lines
2.5 KiB
TypeScript
/**
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* @license
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* Copyright Google LLC All Rights Reserved.
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*
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* Use of this source code is governed by an MIT-style license that can be
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* found in the LICENSE file at https://angular.io/license
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*/
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import {EmitterVisitorContext} from '@angular/compiler/src/output/abstract_emitter';
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import * as o from '@angular/compiler/src/output/output_ast';
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import {JitEmitterVisitor, JitEvaluator} from '@angular/compiler/src/output/output_jit';
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import {R3JitReflector} from '@angular/compiler/src/render3/r3_jit';
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import {newArray} from '@angular/compiler/src/util';
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describe('Output JIT', () => {
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describe('regression', () => {
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it('should generate unique argument names', () => {
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const externalIds = newArray(10, 1).map(
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(_, index) =>
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new o.ExternalReference('@angular/core', `id_${index}_`, {name: `id_${index}_`}));
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const externalIds1 = newArray(10, 1).map(
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(_, index) =>
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new o.ExternalReference('@angular/core', `id_${index}_1`, {name: `id_${index}_1`}));
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const ctx = EmitterVisitorContext.createRoot();
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const reflectorContext: {[key: string]: string} = {};
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for (const {name} of externalIds) {
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reflectorContext[name!] = name!;
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}
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for (const {name} of externalIds1) {
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reflectorContext[name!] = name!;
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}
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const converter = new JitEmitterVisitor(new R3JitReflector(reflectorContext));
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converter.visitAllStatements(
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[o.literalArr([...externalIds1, ...externalIds].map(id => o.importExpr(id))).toStmt()],
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ctx);
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const args = converter.getArgs();
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expect(Object.keys(args).length).toBe(20);
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});
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});
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it('should use strict mode', () => {
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const evaluator = new JitEvaluator();
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expect(() => {
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evaluator.evaluateStatements(
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'http://angular.io/something.ts',
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[
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// Set an undeclared variable
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// foo = "bar";
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o.variable('foo').equals(o.literal('bar')).toStmt(),
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],
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new R3JitReflector({}), false);
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}).toThrowError();
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});
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it('should not add more than one strict mode statement if there is already one present', () => {
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const converter = new JitEmitterVisitor(new R3JitReflector({}));
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const ctx = EmitterVisitorContext.createRoot();
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converter.visitAllStatements(
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[
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o.literal('use strict').toStmt(),
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],
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ctx);
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const matches = ctx.toSource().match(/'use strict';/g)!;
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expect(matches.length).toBe(1);
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});
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});
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