Test improvement: removed Magic Number test smell

[gvma]

This is a test refactoring

Problem:
The Magic Number Test occurs when assert() statements in a test method contain numeric literals (i.e., magic numbers) as parameters.

Solution:
As magic numbers do not indicate the meaning/purpose of the number, they should be replaced with constants or variables, thereby providing a descriptive name for the input.

Results:

Before:

private final int HTTP_OK = 200;
.
.
.
Response reply = new Response.Builder()
        .request(request)
        .protocol(Protocol.HTTP_1_1)
        .code(200)
        .body(ResponseBody.create(MediaType.parse("text/plain"), originalBodyData))
        .build();

After:

Response reply = new Response.Builder()
        .request(request)
        .protocol(Protocol.HTTP_1_1)
        .code(HTTP_OK)
        .body(ResponseBody.create(MediaType.parse("text/plain"), originalBodyData))
        .build();

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