go-fibonacci

HTTP Server testing in Go

1. Fibonacci function: In the sequence of x,y,z numbers number z returns the sum of x+y. Our webserver returns the fibonacci sequence (or error) for any given number.

SETUP

2. Create an endpoint (HandleFunc, "/fib", server by handleFib function )

3. Start a server 8080 (ListenAndServe)

4. Write a "Response-Request" function. We are getting a num parameter from request.(FormValue function)

5. Need to convert into int since function takes int (FormValue)

6. Atoi function returns int or error (StatusBadRequest)

7. If convertion is good, returns a line

8. Converting again: io.WriteString (int-->line)

9. Define Fib function

10. Create cache and initialize it with init function.

TESTING

1. Testing function Handle Fib (using HTTPPIE, curl etc.)

2. Not testing a server, just a HandleFib function

3. Http test has recorder

4. Write test cases. We use bytes since response comes in bytes.

5. Handler returns --serve http-->fake request

6. Add cycle

7. http->recorder

8. Fake request (GET, sprintf)

9. Call ServeHTTP -assert -body ->returns bytes -code status