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django_learning - Coggle Diagram
django_learning
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socket
TCP Connection / Socket
- Same as phone connection
- endpoints of bi-directional communication process
TCP Port Number
- IP4 / IP6 and
- Port number: similar to phone extension
- application specific number to access
HTTP protocol
HTTP request
- request line
general-header
request-header
entity-header
CRLF
message-body
GET
- Response status line (i.e. HTTP/1.1 200 OK)
- Response headers (i.e. date, server, content-type, etc)
- Response body (i.e. <h1>Sample Header</h1>, etc)
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testing
unit testing
Why it is so hard to develop scope of unit testing?
Because non-developers usually test functionality of using tools. For example, use Excel SUM formula, then we don't test whether this formula works correctly. It's Microsoft's engineer's job. But instead, we test the results of SUM across 5 columns as part of our job. This is functional testing.
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