121 lines
2.8 KiB
TypeScript
121 lines
2.8 KiB
TypeScript
import path from 'path';
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class FsMock {
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private static instance: FsMock;
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private mockFiles = Object.create(null);
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// private constructor() {}
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static getInstance(): FsMock {
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if (!FsMock.instance) {
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FsMock.instance = new FsMock();
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}
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return FsMock.instance;
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}
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__createMockFiles = (newMockFiles: Record<string, string>) => {
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this.mockFiles = Object.create(null);
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// Create folder tree
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Object.keys(newMockFiles).forEach((file) => {
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const dir = path.dirname(file);
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if (!this.mockFiles[dir]) {
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this.mockFiles[dir] = [];
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}
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this.mockFiles[dir].push(path.basename(file));
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this.mockFiles[file] = newMockFiles[file];
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});
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};
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__resetAllMocks = () => {
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this.mockFiles = Object.create(null);
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};
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readFileSync = (p: string) => this.mockFiles[p];
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existsSync = (p: string) => this.mockFiles[p] !== undefined;
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writeFileSync = (p: string, data: string | string[]) => {
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this.mockFiles[p] = data;
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};
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mkdirSync = (p: string) => {
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this.mockFiles[p] = Object.create(null);
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};
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rmSync = (p: string) => {
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if (this.mockFiles[p] instanceof Array) {
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this.mockFiles[p].forEach((file: string) => {
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delete this.mockFiles[path.join(p, file)];
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});
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}
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delete this.mockFiles[p];
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};
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readdirSync = (p: string) => {
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const files: string[] = [];
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const depth = p.split('/').length;
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Object.keys(this.mockFiles).forEach((file) => {
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if (file.startsWith(p)) {
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const fileDepth = file.split('/').length;
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if (fileDepth === depth + 1) {
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files.push(file.split('/').pop() || '');
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}
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}
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});
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return files;
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};
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copyFileSync = (source: string, destination: string) => {
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this.mockFiles[destination] = this.mockFiles[source];
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};
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copySync = (source: string, destination: string) => {
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this.mockFiles[destination] = this.mockFiles[source];
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if (this.mockFiles[source] instanceof Array) {
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this.mockFiles[source].forEach((file: string) => {
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this.mockFiles[`${destination}/${file}`] = this.mockFiles[`${source}/${file}`];
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});
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}
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};
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createFileSync = (p: string) => {
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this.mockFiles[p] = '';
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};
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unlinkSync = (p: string) => {
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if (this.mockFiles[p] instanceof Array) {
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this.mockFiles[p].forEach((file: string) => {
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delete this.mockFiles[path.join(p, file)];
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});
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}
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delete this.mockFiles[p];
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};
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getMockFiles = () => this.mockFiles;
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promises = {
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unlink: async (p: string) => {
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if (this.mockFiles[p] instanceof Array) {
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this.mockFiles[p].forEach((file: string) => {
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delete this.mockFiles[path.join(p, file)];
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});
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}
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delete this.mockFiles[p];
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},
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writeFile: async (p: string, data: string | string[]) => {
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this.mockFiles[p] = data;
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},
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};
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}
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export default FsMock.getInstance();
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