Make some other changes:
1. Refactor fuzz_target.py and fuzz_target_test.py
2. Introduce pyfakefs and parameterized as dependencies and use them
in tests.
3. Fix infra-tests in CI so that they use installed dependencies
This allows fuzzing using fuzz target's backup corpora. It will make fuzzing more efficient for targets that have a backup OSS-Fuzz corpus avaliable to the public. It will not effect targets that don't have backups.
Adds functionality to check if a crash exists in the most recent OSS-Fuzz build. This is necessary to determine if a crash was introduced in the current pull request or existed in the project already. Crashes that are surfaced to the user will be both reproducible and novel to the OSS-Fuzz project.
* Tests for Reproduce
* Leo comments
* Maxs comments pt.2
* Olivers comments
* Olivers comments
* Add fuzz target module tests
* Formatting
* Small punct and spelling
* Test update
* Format
jonathanmetzman