ccusage-test-support #

Test-only helpers: filesystem fixtures and environment-variable guards.

Owns #

• Fixture and the fs_fixture! macro — build a temporary directory tree from a literal file map, so loader tests read real files instead of mocks.
• EnvVarGuard and EnvVarsGuard — set the data-directory variables an adapter reads and restore them when the test ends.

Every crate that has tests uses this as a dev-dependency; nothing depends on it at runtime.

Public surface #

• EnvVarGuard
• EnvVarsGuard
• Fixture

Depends on #

• assert_fs

Build layer #

Built in the foundation Crane artifact layer, so a change here recompiles every adapter. It is a dev-dependency only, so it never reaches the shipped binary.