Improved the unit tests for loss curve output
Improved the unit tests for loss curve output


Former-commit-id: 61e2a1616188ee545da2c7fabcb8be375ad268f2 [formerly 0be4cdedf538f243bd31c06ea5fa941b90c3d37a]
Former-commit-id: cc7911a382e4732fe1ea2513cc6e84530ece9865
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine