Alert configuration in Postman - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to set the alert condition to trigger when the response status code is 404.

Postman

pm.test('Status code is 404', function () { pm.response.to.have.status([1]); });

Drag options to blanks, or click blank then click option'

A200

B404

C500

D301

Attempts:

3 left

💡 Hint

Common Mistakes

Using a status code other than 404 will not trigger the alert correctly.

Forgetting to put the status code as a number inside the function.

The alert triggers when the response status code matches 404, indicating 'Not Found'.

2fill in blank

medium

Complete the code to check if the response time is less than 200 milliseconds.

Postman

pm.test('Response time is fast', function () { pm.expect(pm.response.responseTime).to.be.[1](200); });

Drag options to blanks, or click blank then click option'

Aabove

Bbelow

CgreaterThan

DlessThan

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'above' or 'greaterThan' will check the opposite condition.

Using 'below' is not a valid Chai assertion method.

The method lessThan checks if the response time is less than the given value.

3fill in blank

hard

Fix the error in the code to correctly check if the JSON response has a property 'success' set to true.

Postman

pm.test('Response has success true', function () { pm.expect(pm.response.json().[1]).to.eql(true); });

Drag options to blanks, or click blank then click option'

Aget('success')

BhasOwnProperty('success')

Csuccess

Dincludes('success')

Attempts:

3 left

💡 Hint

Common Mistakes

Using methods like hasOwnProperty returns a boolean, not the property value.

Using get or includes are not valid for plain JSON objects.

Access the property directly with success to compare its value to true.

4fill in blank

hard

Fill both blanks to create an alert that checks if the response body contains the string 'error' and the status code is 500.

Postman

pm.test('Error response check', function () { pm.expect(pm.response.text().[1]('error')).to.be.[2]; pm.response.to.have.status(500); });

Drag options to blanks, or click blank then click option'

Aincludes

Btrue

Cfalse

DindexOf

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'indexOf' alone without comparing to -1 will not return a boolean.

Asserting 'false' will fail the test if 'error' is present.

The includes method returns true if 'error' is found in the response text, which we assert to be true.

5fill in blank

hard

Fill all three blanks to create a test that verifies the response JSON has a property 'data' which is an array with length greater than 0.

Postman

pm.test('Data array is not empty', function () { const jsonData = pm.response.json(); pm.expect(jsonData.[1]).to.be.an('[2]').and.to.have.length.[3](0); });

Drag options to blanks, or click blank then click option'

Adata

Barray

Cabove

Dobject

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'object' instead of 'array' will fail the type check.

Using 'length.above' with a negative or zero value will fail the test.

Access the 'data' property, check it is an array, and assert its length is above 0.

Practice

1. What is the main purpose of configuring alerts in Postman during API testing?

easy

A. To notify testers when a test condition fails

B. To automatically fix API errors

C. To generate API documentation

D. To speed up API response times

Solution

1. Step 1: Understand alert purpose in testing

   Alerts are used to inform testers about issues or failures during tests.

2. Step 2: Identify correct alert function

   Alerts notify when test conditions fail, helping catch problems early.

3. Final Answer:

   To notify testers when a test condition fails -> Option A

4. Quick Check:

   Alerts = Notifications on failure [OK]

Hint: Alerts notify failures, not fix or document [OK]

Common Mistakes:

• Thinking alerts fix errors automatically
• Confusing alerts with documentation tools
• Assuming alerts improve response speed

2. Which of the following is the correct way to set an alert message in a Postman test script when a response status is not 200?

easy

A. pm.test('Status is 200', () => pm.response.to.have.status(200));

B. pm.alert('Status is not 200');

C. pm.test('Status is 200', () => { if(pm.response.code !== 200) pm.alert('Status is not 200'); });

D. pm.response.alert('Status check');

Solution

1. Step 1: Identify correct test syntax

   Postman uses pm.test() to define tests and pm.response.to.have.status() to check status.

2. Step 2: Check alert usage

   pm.alert() is not a valid Postman function; alerts come from test failures.

3. Final Answer:

   pm.test('Status is 200', () => pm.response.to.have.status(200)); -> Option A

4. Quick Check:

   Use pm.test with assertions [OK]

Hint: Use pm.test with assertions, no pm.alert function [OK]

Common Mistakes:

• Using pm.alert which does not exist
• Trying to call alert on response object
• Not using pm.test for assertions

3. Given this Postman test script:

pm.test('Response time is less than 500ms', () => {
  pm.expect(pm.response.responseTime).to.be.below(500);
});

What will happen if the response time is 600ms?

medium

A. The test will pass and no alert is shown

B. The test will pass but an alert is triggered

C. The script will cause a syntax error

D. The test will fail and an alert is triggered

Solution

1. Step 1: Understand the test condition

   The test expects response time below 500ms.

2. Step 2: Analyze response time 600ms

   600ms is above 500ms, so the condition fails and test fails.

3. Final Answer:

   The test will fail and an alert is triggered -> Option D

4. Quick Check:

   Fail if responseTime >= 500ms [OK]

Hint: Fail test if condition false triggers alert [OK]

Common Mistakes:

• Assuming test passes despite failure
• Thinking alerts show on pass
• Confusing syntax error with test failure

4. You wrote this Postman test script:

pm.test('Check status', () => {
  pm.expect(pm.response.status).to.equal(200);
});

But the test always fails even when the API returns 200. What is the error?

medium

A. pm.expect is used incorrectly

B. pm.test syntax is wrong

C. pm.response.status should be pm.response.code

D. The API never returns 200

Solution

1. Step 1: Check property for status code

   Postman uses pm.response.code for status code, not pm.response.status.

2. Step 2: Correct the property usage

   Replace pm.response.status with pm.response.code to fix the test.

3. Final Answer:

   pm.response.status should be pm.response.code -> Option C

4. Quick Check:

   Use pm.response.code for status [OK]

Hint: Use pm.response.code, not pm.response.status [OK]

Common Mistakes:

• Using pm.response.status instead of pm.response.code
• Misusing pm.expect syntax
• Assuming API never returns 200 without checking

5. You want to configure an alert in Postman that triggers only when the response JSON has a field error set to true. Which test script correctly sets this alert?

hard

A. pm.test('Error field check', () => {
pm.expect(pm.response.json().error).to.be.false;
});

B. pm.test('Error field check', () => {
const json = pm.response.json();
pm.expect(json.error).to.eql(true);
});

C. pm.test('Error field check', () => {
const json = pm.response.json();
if(json.error === true) pm.alert('Error found');
});

D. pm.test('Error field check', () => {
pm.response.to.have.jsonBody('error', true);
});

Solution

1. Step 1: Understand how to check JSON field in Postman

   Use pm.response.json() to parse JSON, then assert field value.

2. Step 2: Identify correct assertion syntax

   pm.expect(...).to.eql(true) correctly asserts that error is true, triggering failure if not.

3. Step 3: Evaluate options

   pm.test('Error field check', () => { pm.expect(pm.response.json().error).to.be.false; }); expects error to be false, which is opposite of requirement; pm.test('Error field check', () => { const json = pm.response.json(); if(json.error === true) pm.alert('Error found'); }); uses invalid pm.alert; pm.test('Error field check', () => { pm.response.to.have.jsonBody('error', true); }); uses invalid method.

4. Final Answer:

   pm.test('Error field check', () => { const json = pm.response.json(); pm.expect(json.error).to.eql(true); }); -> Option B

5. Quick Check:

   Use pm.expect(...).to.eql(true) to assert error true [OK]

Hint: Use pm.expect with .to.eql(true) for boolean alerts [OK]

Common Mistakes:

• Using pm.alert which does not exist
• Incorrect assertion methods
• Not parsing JSON before checking