Test Scenario vs Test Case

A test scenario is a high-level description of what needs to be tested. A test case provides the detailed steps, test data, and expected results for how a specific scenario will be tested.

In simple terms:

• Test Scenario = What to test

• Test Case = How to test it

Both are important. Test scenarios help ensure broad test coverage, while test cases provide the detailed instructions needed for execution and verification.

Test Scenario

A test scenario describes a functionality, feature, or situation that needs to be verified.

It does not usually contain detailed steps.

Example:

For a login feature, possible test scenarios include:

• Verify login with valid credentials.

• Verify login with an invalid password.

• Verify login with an unregistered email.

• Verify login with empty fields.

• Verify password visibility functionality.

• Verify account behavior after multiple failed login attempts.

These scenarios identify what areas need testing.

Test Case

A test case provides detailed instructions for verifying a specific scenario. It normally includes:

• Test Case ID

• Test Case Title

• Preconditions

• Test Data

• Test Steps

• Expected Result

• Actual Result

• Status

Example:

Scenario: Verify login with valid credentials.

Test Case:

1. Open the login page.

2. Enter a registered email address.

3. Enter the correct password.

4. Click the Login button.

Expected Result:
The user should be successfully logged in and redirected to the appropriate page.

The test case explains exactly how to execute and verify the scenario.

Scenario vs Test Case

1. Level of Detail

• Test Scenario: High-level and brief.

• Test Case: Detailed and step-by-step.

2. Purpose

• Test Scenario: Identifies what needs to be tested.

• Test Case: Defines how a specific functionality will be tested.

3. Coverage

• Test Scenario: Helps identify broad testing coverage.

• Test Case: Provides detailed execution coverage.

4. Execution

• Test Scenario: May not be directly executable.

• Test Case: Designed to be executed by a tester.

5. Number of Items

One scenario can have multiple test cases.

Example:

Test Scenario: Verify the login functionality.

Possible test cases:

• Login with valid credentials.

• Login with an incorrect password.

• Login with an unregistered email.

• Login with empty fields.

• Login with an invalid email format.

• Login with leading/trailing spaces.

• Login after multiple failed attempts.

Practical Example

Consider an e-commerce application.

Test Scenario:
Verify the checkout functionality.

Possible test cases:

1. Checkout with a valid product and valid address.

2. Checkout without selecting a shipping address.

3. Checkout with an unavailable product.

4. Checkout with an invalid payment method.

5. Checkout with an expired payment card.

6. Checkout when the cart is empty.

7. Verify order confirmation after successful payment.

The scenario provides the overall testing direction, while the test cases provide the specific checks needed to verify it.

Relationship Between Scenario and Test Case

A common relationship is:

Requirement → Test Scenario → Test Cases → Test Execution → Test Result

For example:

Requirement: Users should be able to reset their password.

Test Scenario: Verify the password reset functionality.

Test Cases:

• Reset password with a registered email.

• Reset password with an unregistered email.

• Submit an empty email field.

• Use an expired reset link.

• Set a password that does not meet password requirements.

• Successfully set a new password and log in.