test(ivy): refactor Esm5Renderer tests to make them less fragile (#25534)

PR Close #25534
This commit is contained in:
Pete Bacon Darwin 2018-08-23 09:01:21 +01:00 committed by Misko Hevery
parent 73047483a1
commit e73e864f87
1 changed files with 84 additions and 135 deletions

View File

@ -27,74 +27,85 @@ function analyze(parser: Esm5FileParser, analyzer: Analyzer, file: ts.SourceFile
return parsedFiles.map(file => analyzer.analyzeFile(file))[0];
}
const PROGRAM = {
name: 'some/file.js',
contents: `
/* A copyright notice */
import {Directive} from '@angular/core';
var A = (function() {
function A() {}
A.decorators = [
{ type: Directive, args: [{ selector: '[a]' }] },
{ type: OtherA }
];
return A;
}());
var B = (function() {
function B() {}
B.decorators = [
{ type: OtherB },
{ type: Directive, args: [{ selector: '[b]' }] }
];
return B;
}());
var C = (function() {
function C() {}
C.decorators = [
{ type: Directive, args: [{ selector: '[c]' }] },
];
return C;
}());
// Some other content
export {A, B, C};`
};
describe('Esm5Renderer', () => {
describe('addImports', () => {
it('should insert the given imports at the start of the source file', () => {
const PROGRAM = {
name: 'some/file.js',
contents: `
/* A copyright notice */
import {Directive} from '@angular/core';
var A = (function() {
function A() {}
A.decorators = [
{ type: Directive, args: [{ selector: '[a]' }] },
{ type: Other }
];
return A;
}());
// Some other content
export {A};`
};
const {renderer} = setup(PROGRAM);
const output = new MagicString(PROGRAM.contents);
renderer.addImports(
output, [{name: '@angular/core', as: 'i0'}, {name: '@angular/common', as: 'i1'}]);
expect(output.toString())
.toEqual(
`import * as i0 from '@angular/core';\n` +
`import * as i1 from '@angular/common';\n` + PROGRAM.contents);
expect(output.toString()).toContain(`import * as i0 from '@angular/core';
import * as i1 from '@angular/common';
/* A copyright notice */`);
});
});
describe('addConstants', () => {
it('should insert the given constants after imports in the source file', () => {
const {renderer, program} = setup(PROGRAM);
const file = program.getSourceFile('some/file.js');
if (file === undefined) {
throw new Error(`Could not find source file`);
}
const output = new MagicString(PROGRAM.contents);
renderer.addConstants(output, 'const x = 3;', file);
expect(output.toString()).toContain(`
import {Directive} from '@angular/core';
const x = 3;
var A = (function() {`);
});
});
describe('addDefinitions', () => {
it('should insert the definitions directly after the class declaration', () => {
const PROGRAM = {
name: 'some/file.js',
contents: `
/* A copyright notice */
import {Directive} from '@angular/core';
var A = (function() {
function A() {}
A.decorators = [
{ type: Directive, args: [{ selector: '[a]' }] },
{ type: Other }
];
return A;
}());
// Some other content
export {A};`
};
const {analyzer, parser, program, renderer} = setup(PROGRAM);
const analyzedFile = analyze(parser, analyzer, program.getSourceFile(PROGRAM.name) !);
const output = new MagicString(PROGRAM.contents);
renderer.addDefinitions(output, analyzedFile.analyzedClasses[0], 'SOME DEFINITION TEXT');
expect(output.toString()).toEqual(`
/* A copyright notice */
import {Directive} from '@angular/core';
var A = (function() {
expect(output.toString()).toContain(`
function A() {}
SOME DEFINITION TEXT
A.decorators = [
{ type: Directive, args: [{ selector: '[a]' }] },
{ type: Other }
];
return A;
}());
// Some other content
export {A};`);
`);
});
});
@ -103,120 +114,58 @@ export {A};`);
describe('removeDecorators', () => {
it('should delete the decorator (and following comma) that was matched in the analysis', () => {
const PROGRAM = {
name: 'some/file.js',
contents: `
/* A copyright notice */
import {Directive} from '@angular/core';
var A = (function() {
function A() {}
A.decorators = [
{ type: Directive, args: [{ selector: '[a]' }] },
{ type: Other }
];
return A;
}());
// Some other content
export {A};`
};
const {analyzer, parser, program, renderer} = setup(PROGRAM);
const analyzedFile = analyze(parser, analyzer, program.getSourceFile(PROGRAM.name) !);
const output = new MagicString(PROGRAM.contents);
const analyzedClass = analyzedFile.analyzedClasses[0];
const decorator = analyzedClass.decorators[0];
const decoratorsToRemove = new Map<ts.Node, ts.Node[]>();
decoratorsToRemove.set(
analyzedClass.decorators[0].node.parent !, [analyzedClass.decorators[0].node]);
decoratorsToRemove.set(decorator.node.parent !, [decorator.node]);
renderer.removeDecorators(output, decoratorsToRemove);
expect(output.toString()).toEqual(`
/* A copyright notice */
import {Directive} from '@angular/core';
var A = (function() {
function A() {}
A.decorators = [
{ type: Other }
];
return A;
}());
// Some other content
export {A};`);
expect(output.toString()).not.toContain(`{ type: Directive, args: [{ selector: '[a]' }] },`);
expect(output.toString()).toContain(`{ type: OtherA }`);
expect(output.toString()).toContain(`{ type: Directive, args: [{ selector: '[b]' }] }`);
expect(output.toString()).toContain(`{ type: OtherB }`);
expect(output.toString()).toContain(`{ type: Directive, args: [{ selector: '[c]' }] }`);
});
it('should delete the decorator (but cope with no trailing comma) that was matched in the analysis',
() => {
const PROGRAM = {
name: 'some/file.js',
contents: `
/* A copyright notice */
import {Directive} from '@angular/core';
var A = (function() {
function A() {}
A.decorators = [
{ type: Other },
{ type: Directive, args: [{ selector: '[a]' }] }
];
return A;
}());
// Some other content
export {A};`
};
const {analyzer, parser, program, renderer} = setup(PROGRAM);
const analyzedFile = analyze(parser, analyzer, program.getSourceFile(PROGRAM.name) !);
const output = new MagicString(PROGRAM.contents);
const analyzedClass = analyzedFile.analyzedClasses[0];
const analyzedClass = analyzedFile.analyzedClasses[1];
const decorator = analyzedClass.decorators[1];
const decoratorsToRemove = new Map<ts.Node, ts.Node[]>();
decoratorsToRemove.set(
analyzedClass.decorators[0].node.parent !, [analyzedClass.decorators[1].node]);
decoratorsToRemove.set(decorator.node.parent !, [decorator.node]);
renderer.removeDecorators(output, decoratorsToRemove);
expect(output.toString()).toEqual(`
/* A copyright notice */
import {Directive} from '@angular/core';
var A = (function() {
function A() {}
A.decorators = [
{ type: Other },
];
return A;
}());
// Some other content
export {A};`);
expect(output.toString()).toContain(`{ type: Directive, args: [{ selector: '[a]' }] },`);
expect(output.toString()).toContain(`{ type: OtherA }`);
expect(output.toString())
.not.toContain(`{ type: Directive, args: [{ selector: '[b]' }] }`);
expect(output.toString()).toContain(`{ type: OtherB }`);
expect(output.toString()).toContain(`{ type: Directive, args: [{ selector: '[c]' }] }`);
});
it('should delete the decorator (and its container if there are not other decorators left) that was matched in the analysis',
() => {
const PROGRAM = {
name: 'some/file.js',
contents: `
/* A copyright notice */
import {Directive} from '@angular/core';
var A = (function() {
function A() {}
A.decorators = [
{ type: Directive, args: [{ selector: '[a]' }] }
];
return A;
}());
// Some other content
export {A};`
};
const {analyzer, parser, program, renderer} = setup(PROGRAM);
const analyzedFile = analyze(parser, analyzer, program.getSourceFile(PROGRAM.name) !);
const output = new MagicString(PROGRAM.contents);
const analyzedClass = analyzedFile.analyzedClasses[0];
const analyzedClass = analyzedFile.analyzedClasses[2];
const decorator = analyzedClass.decorators[0];
const decoratorsToRemove = new Map<ts.Node, ts.Node[]>();
decoratorsToRemove.set(
analyzedClass.decorators[0].node.parent !, [analyzedClass.decorators[0].node]);
decoratorsToRemove.set(decorator.node.parent !, [decorator.node]);
renderer.removeDecorators(output, decoratorsToRemove);
expect(output.toString()).toEqual(`
/* A copyright notice */
import {Directive} from '@angular/core';
var A = (function() {
function A() {}
return A;
}());
// Some other content
export {A};`);
expect(output.toString()).toContain(`{ type: Directive, args: [{ selector: '[a]' }] },`);
expect(output.toString()).toContain(`{ type: OtherA }`);
expect(output.toString()).toContain(`{ type: Directive, args: [{ selector: '[b]' }] }`);
expect(output.toString()).toContain(`{ type: OtherB }`);
expect(output.toString()).not.toContain(`C.decorators = [
{ type: Directive, args: [{ selector: '[c]' }] },
];`);
});
});