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Snapshot Tests

Explore snapshot testing techniques with Jasmine to validate large or complex data outputs, such as full HTML or JSON, in Angular applications. Learn how to implement snapshot tests using the jasmine-snapshot package, register snapshot data, and manage test updates when data changes, helping you create fast and reliable unit tests.

Snapshot testing is a technique we can use to test functions that return some large or complex data. Suppose we want to test the full HTML rendered by a large component. We could record a copy of the entire HTML returned by the function. Then, we can make an expectation that the function in our test should always return the same data.

This technique can be helpful to quickly write ...