CreateTestAgentConfigEnv creates an agent config file named "temp-nginx-agent.conf" and a dynamic config named "temp-agent-dynamic.conf" meant for testing in the current working directory.

GetTestAgentConfigPath gets the absolute path to the test agent config.

StartFakeProcesses creates a fake process for each of the string names and each fake process lasts for fakeProcsDuration of time (seconds), the function that is returned can be ran to kill all the fake processes that were created.

These initial conf tags come from the values located in ../testdata/configs/agent-dynamic.conf.