Structure your API tests using the Arrange-Act-Assert (AAA) pattern
Arrange: Start your API in a background process, prepare your test data, and set up any required authentication or configuration. This phase handles all the setup work needed for your test scenario. If your API is stateless, start the API before all tests to save time on repeated startup.
Act: Make the HTTP request to your API endpoint using {httr2}. This step should focus solely on executing the action you want to test.
When your API testing requires validation of concurrent request handling or high-performance scenarios, {nanonext} can serve as a powerful alternative to {httr2}. It’s particularly suitable for testing scenarios involving multiple simultaneous requests.
Assert: Verify the response meets your expectations. Check status codes, response headers, and the structure of returned data. Focus on contract validation rather than business logic verification.
library(promises) library(plumber) #* Get a response back asynchronously. #* @get /greeting function(){ mirai::mirai({ "Ayyyyy SYNC!" }) %...>% (function(x) { x }) }
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Cartographic Design Process – Making Effective Maps: Cartographic Visualization for GIS
The creation of this work was supported by Open CU Boulder 2023-2024, a grant funded by the Colorado Department of Higher Education with additional support from the CU Office of the President, CU Office of Academic Affairs, CU Boulder Office of the Provost, and CU Boulder University Libraries.
Types of Maps – Making Effective Maps: Cartographic Visualization for GIS
The creation of this work was supported by Open CU Boulder 2023-2024, a grant funded by the Colorado Department of Higher Education with additional support from the CU Office of the President, CU Office of Academic Affairs, CU Boulder Office of the Provost, and CU Boulder University Libraries.
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