feat: add ability to define number of generated extensions in system.…

…filePath

src/system.ts

@@ -174,12 +174,32 @@ export class System {
   /**
    * Returns a file path.
    *
+   * @param ext Defines number of generated extensions. Defaults to `1`.
+   *
    * @example
    * faker.system.filePath() // '/usr/local/src/money.dotx'
+   * faker.system.filePath(0) // '/usr/local/src/money'
+   * faker.system.filePath(2) // '/usr/local/src/money.dotx.zip'
    */
-  // TODO @prisis 2022-01-25: add a parameter to have the possibility to have one or two ext on file.
-  filePath(): string {
-    return `${this.directoryPath()}/${this.fileName()}`;
+  filePath(ext = 1): string {
+    const path = `${this.directoryPath()}/${this.fileName()}`;
+
+    switch (true) {
+      case ext === 0:
+        return path.slice(0, path.lastIndexOf('.'));
+
+      case ext === 1:
+        return path;
+
+      default: {
+        const extensions = new Array(ext - 1)
+          .fill('')
+          .map(() => this.fileExt())
+          .join('.');
+
+        return `${path}.${extensions}`;
+      }
+    }
   }
 
   /**

test/system.spec.ts

@@ -98,11 +98,13 @@ describe('system', () => {
             'htm',
             'html',
             'jpeg',
+            'm1v',
             'm2a',
             'm2v',
             'mp2',
             'mp3',
             'm2v',
+            'mp2a',
             'mp4',
             'mp4v',
             'mpeg',
@@ -235,16 +237,32 @@ describe('system', () => {
       describe('filePath()', () => {
         it('should return unix fs file full path', () => {
           const filePath = faker.system.filePath();
-          const parts = filePath.split('/');
+          const file = filePath.split('/').pop();
 
           expect(
             filePath.startsWith('/'),
             'generated filePath should start with /'
           ).toBeTruthy();
+
           expect(
-            parts[parts.length - 1],
-            'generated filePath should have a file extension'
-          ).toMatch(/^\w+\.\w+$/);
+            file.includes('.'),
+            'generated filePath should have extension'
+          ).toBeTruthy();
+        });
+
+        it('should not have extension when ext=0', () => {
+          const filePath = faker.system.filePath(0);
+          const file = filePath.split('/').pop();
+
+          expect(file.includes('.')).toBeFalsy();
+        });
+
+        it('should have multiple extension when ext > 1', () => {
+          const ext = 3;
+          const filePath = faker.system.filePath(ext);
+          const file = filePath.split('/').pop();
+
+          expect(file.split('.').length).toBe(ext + 1);
         });
       });