E2E tests for all Flagsmith Engine implementations.

Test cases ported from v1 are named in the pattern of test_case/test_{context_value}__{matching_segments}.json, where:

• {context_value} is the main context value matched in the case — usually, $.identity.identifier.
• {matching_segments} is a dunder-delimited matched segments list, e.g. segment_two__segment_three. In case no segments match, default is used.

Single test case contents are described with schema.json JSONSchema.

A test case file may contain a test description in the form of a JSON5-compliant comment in the beginning of the file. Test implementations should be ready to parse JSON5.