fix(cli-test): remove the trailing newline from parsed cli outputs (#2148)

Author: zimeg

packages/cli-test/src/cli/shell.spec.ts

@@ -72,6 +72,13 @@ describe('shell module', () => {
         sinon.match({ shell: true, env: fakeEnv }),
       );
     });
+    it('should return the command outputs unchanged', () => {
+      const fakeCmd = 'echo';
+      const fakeArgs = ['"greetings"'];
+      const sh = shell.spawnProcess(fakeCmd, fakeArgs);
+      spawnProcess.stdout.emit('data', 'outputs\r\n');
+      assert.equal(sh.output, 'outputs\r\n');
+    });
     it('should raise bubble error details up', () => {
       runSpy.throws(new Error('this is bat country'));
       assert.throw(() => {
@@ -124,6 +131,15 @@ describe('shell module', () => {
         sinon.match({ shell: true, env: fakeEnv }),
       );
     });
+    it('should return the command outputs unchanged', () => {
+      const fakeCmd = 'echo';
+      const fakeArgs = ['"greetings"'];
+      const sh = shell.spawnProcess(fakeCmd, fakeArgs);
+      spawnProcess.stdout.emit('data', 'outputs\r\n');
+      spawnProcess.stderr.emit('data', 'warning\n');
+      spawnProcess.stdout.emit('data', 'endings\r\n');
+      assert.equal(sh.output, 'outputs\r\nwarning\nendings\r\n');
+    });
     it('should raise bubble error details up', () => {
       spawnSpy.throws(new Error('this is bat country'));
       assert.throw(() => {

packages/cli-test/src/cli/shell.ts

@@ -42,15 +42,17 @@ export const shell = {
       // Listen to data event that returns all the output and collect it
       // biome-ignore lint/suspicious/noExplicitAny: stdout can accept a variety of data
       childProcess.stdout.on('data', (data: any) => {
-        sh.output += this.removeANSIcolors(data.toString());
-        logger.verbose(`Output: ${this.removeANSIcolors(data.toString())}`);
+        const output = this.removeANSIcolors(data.toString());
+        sh.output += output;
+        logger.verbose(`Output: ${output.replace(/\r?\n$/, '')}`);
       });
 
       // Collect error output
       // biome-ignore lint/suspicious/noExplicitAny: stderr can accept a variety of data
       childProcess.stderr.on('data', (data: any) => {
-        sh.output += this.removeANSIcolors(data.toString());
-        logger.error(`Error: ${this.removeANSIcolors(data.toString())}`);
+        const output = this.removeANSIcolors(data.toString());
+        sh.output += output;
+        logger.error(`Error: ${output.replace(/\r?\n$/, '')}`);
       });
 
       // Set the finished flag to true on close event