Newman in CI/CD pipelines in Postman - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is Newman in the context of Postman?

Newman is a command-line tool that allows you to run Postman collections directly from the terminal or integrate them into CI/CD pipelines.

beginner

Why use Newman in CI/CD pipelines?

Using Newman in CI/CD pipelines helps automate API testing, ensuring APIs work correctly before deployment, and catching errors early.

beginner

How do you run a Postman collection using Newman?

You run a collection with the command: newman run collection.json, where collection.json is your exported Postman collection file.

intermediate

What is a common way to integrate Newman into a Jenkins pipeline?

You add a build step in Jenkins to run a shell command like newman run collection.json, so tests run automatically during the build.

intermediate

How can Newman report test results in CI/CD pipelines?

Newman can generate reports in formats like HTML, JSON, or JUnit XML, which CI/CD tools can use to show test results clearly.

What is the primary purpose of Newman in CI/CD?

A Run Postman collections automatically

B Deploy applications to servers

C Monitor server health

D Manage source code versions

Newman runs Postman collections automatically, enabling API tests in CI/CD pipelines.

Which command runs a Postman collection using Newman?

A npm run collection.json

B postman run collection.json

C newman start collection.json

D newman run collection.json

The correct command is 'newman run collection.json' to execute the collection.

Which report format can Newman generate for CI/CD tools?

A CSV

B JUnit XML

C PDF

D DOCX

Newman can generate JUnit XML reports, which many CI/CD tools understand.

In Jenkins, where do you add the Newman command to run tests?

A Pipeline triggers

B Post-build action

C Build step

D Source code management

You add Newman commands in the build step to run tests during the build.

What file do you need to export from Postman to use with Newman?

A Collection JSON file

B Environment YAML file

C Script JS file

D Config XML file

You export the Postman collection as a JSON file to run it with Newman.

Explain how Newman fits into a CI/CD pipeline and why it is useful.

Think about testing automation and pipeline integration.

Describe the steps to run a Postman collection using Newman in a Jenkins pipeline.

Focus on exporting, command, and Jenkins integration.

Practice

1. What is the main purpose of using Newman in a CI/CD pipeline?

easy

A. To write new API tests inside Postman

B. To run Postman API tests automatically from the command line

C. To deploy applications to production servers

D. To monitor server performance in real-time

Solution

1. Step 1: Understand Newman's role

   Newman is a command-line tool designed to run Postman API tests outside the Postman app.

2. Step 2: Connect to CI/CD pipeline use

   In CI/CD pipelines, Newman automates running these tests to check API health during builds or deployments.

3. Final Answer:

   To run Postman API tests automatically from the command line -> Option B

4. Quick Check:

   Newman runs tests in CI/CD = C [OK]

Hint: Newman runs Postman tests from command line in pipelines [OK]

Common Mistakes:

• Confusing Newman with deployment tools
• Thinking Newman writes tests instead of running them
• Assuming Newman monitors servers

2. Which of the following is the correct basic syntax to run a Postman collection using Newman?

easy

A. newman run collection.json

B. newman execute collection.json

C. newman start collection.json

D. newman test collection.json

Solution

1. Step 1: Recall Newman command structure

   The correct command to run a collection is 'newman run' followed by the collection file.

2. Step 2: Verify options

   Options like 'execute', 'start', or 'test' are not valid Newman commands.

3. Final Answer:

   newman run collection.json -> Option A

4. Quick Check:

   Correct Newman run syntax = D [OK]

Hint: Use 'newman run' to execute collections [OK]

Common Mistakes:

• Using 'execute' or 'start' instead of 'run'
• Omitting the 'run' keyword
• Confusing Newman commands with other tools

3. What will be the output when running this command in a CI pipeline?

newman run mycollection.json --reporters cli,json --reporter-json-export result.json

medium

A. Runs tests and outputs results only in CLI, no file created

B. Runs tests and saves results only in XML format

C. Runs tests but fails due to invalid reporter options

D. Runs tests, shows CLI output, and saves JSON report to result.json

Solution

1. Step 1: Analyze reporter options

   The command uses '--reporters cli,json' to show results in CLI and JSON format.

2. Step 2: Check JSON export flag

   '--reporter-json-export result.json' saves the JSON report to the file 'result.json'.

3. Final Answer:

   Runs tests, shows CLI output, and saves JSON report to result.json -> Option D

4. Quick Check:

   CLI + JSON report saved = B [OK]

Hint: Multiple reporters show CLI and save JSON report [OK]

Common Mistakes:

• Assuming no file is created
• Thinking JSON export is invalid syntax
• Confusing JSON with XML report format

4. You added this command in your CI pipeline:

newman run collection.json --reporters cli --reporter-json-export report.json

But the JSON report file is not created. What is the likely problem?

medium

A. The CLI reporter disables file exports

B. The collection.json file is missing

C. Missing 'json' in the --reporters option

D. Newman does not support JSON reports

Solution

1. Step 1: Check reporter options consistency

   The command uses '--reporters cli' but tries to export JSON report, which requires 'json' reporter enabled.

2. Step 2: Understand reporter behavior

   Without 'json' in '--reporters', the JSON export flag is ignored, so no file is created.

3. Final Answer:

   Missing 'json' in the --reporters option -> Option C

4. Quick Check:

   JSON export needs 'json' reporter = A [OK]

Hint: Include 'json' in --reporters to export JSON files [OK]

Common Mistakes:

• Assuming collection file missing causes no report
• Thinking CLI reporter blocks file exports
• Believing Newman can't export JSON reports

5. In a CI/CD pipeline, you want to fail the build if any Postman test fails using Newman. Which command option helps achieve this?

hard

A. --bail

B. --fail-fast

C. --exit-on-error

D. --stop-on-failure

Solution

1. Step 1: Identify Newman option for failure control

   The '--bail' option stops the run and returns a failure exit code if any test fails.

2. Step 2: Confirm other options

   Options like '--fail-fast', '--exit-on-error', and '--stop-on-failure' are not valid Newman flags.

3. Final Answer:

   --bail -> Option A

4. Quick Check:

   Fail build on test failure = --bail [OK]

Hint: Use '--bail' to stop and fail on test errors [OK]

Common Mistakes:

• Using non-existent flags like --fail-fast
• Not using any fail option, so build passes despite failures
• Confusing '--bail' with report generation options