fix: do not attempt to trim objects when printing to console (#18341)

packages/runner-shared/src/logger.js

@@ -30,7 +30,8 @@ export const logger = {
     _.each(formattedLog, (value, key) => {
       // don't log empty strings
       // _.trim([]) returns '' but we want to log empty arrays, so account for that
-      if (_.trim(value) === '' && !_.isArray(value)) return
+      // Skip trim if we know value is an object
+      if (typeof value !== 'object' && _.trim(value) === '' && !_.isArray(value)) return
 
       this.log(`%c${key}`, 'font-weight: bold', value)
     })

packages/runner-shared/src/logger.spec.js

@@ -1,16 +1,43 @@
 const sinon = require('sinon')
 const { logger } = require('./logger')
+import _ from 'lodash'
 
 describe('logger', () => {
+  let spyLog = sinon.spy(logger, 'log')
+
+  afterEach(() => {
+    // reset after each unit test
+    spyLog.resetHistory()
+  })
+
   // https://github.com/cypress-io/cypress/issues/17542
   it('cy.log() shows all arguments in each line when there are multiple args', () => {
-    const spy = sinon.spy(logger, 'log')
-
     logger.logFormatted({ args: [1, 2, 3] })
 
-    expect(spy).to.have.been.calledWith(`%cArgs:`, 'font-weight: bold')
-    expect(spy).to.have.been.calledWith(`%c  [0]:`, 'font-weight: bold', 1)
-    expect(spy).to.have.been.calledWith(`%c  [1]:`, 'font-weight: bold', 2)
-    expect(spy).to.have.been.calledWith(`%c  [2]:`, 'font-weight: bold', 3)
+    expect(spyLog).to.have.been.calledWith(`%cArgs:`, 'font-weight: bold')
+    expect(spyLog).to.have.been.calledWith(`%c  [0]:`, 'font-weight: bold', 1)
+    expect(spyLog).to.have.been.calledWith(`%c  [1]:`, 'font-weight: bold', 2)
+    expect(spyLog).to.have.been.calledWith(`%c  [2]:`, 'font-weight: bold', 3)
+  })
+
+  describe('_logValues', () => {
+    let spyTrim = sinon.spy(_, 'trim')
+
+    afterEach(() => {
+      // reset after each unit test
+      spyTrim.resetHistory()
+    })
+
+    it('should not call trim', () => {
+      logger._logValues({})
+      logger._logValues({ test: {} })
+      logger._logValues(null)
+      logger._logValues(undefined)
+
+      expect(spyTrim.getCalls()).to.have.length(0)
+    })
+
+    // The positive unit tests to capture if log has been called are already written in
+    // the 'cy.log() shows all arguments in each line when there are multiple args' unit test.
   })
 })