id3c.tests.test_effective_num_images
====================================

.. py:module:: id3c.tests.test_effective_num_images

.. autoapi-nested-parse::

   Tests for ``effective_num_images``.



Functions
---------

.. autoapisummary::

   id3c.tests.test_effective_num_images.test_short_period_caps_at_unlimited_frames
   id3c.tests.test_effective_num_images.test_long_period_caps_at_max_seconds
   id3c.tests.test_effective_num_images.test_crossover_at_max_over_unlimited
   id3c.tests.test_effective_num_images.test_returns_at_least_one
   id3c.tests.test_effective_num_images.test_zero_period_clamped
   id3c.tests.test_effective_num_images.test_observed_failing_combo_is_capped


Module Contents
---------------

.. py:function:: test_short_period_caps_at_unlimited_frames()

   Short t_period -> capped by UNLIMITED_FRAMES, not by duration.


.. py:function:: test_long_period_caps_at_max_seconds()

   Long t_period -> capped by MAX_ACQUISITION_SECONDS / t_period.


.. py:function:: test_crossover_at_max_over_unlimited()

   Crossover happens at t_period = MAX_ACQUISITION_SECONDS / UNLIMITED_FRAMES.


.. py:function:: test_returns_at_least_one()

   Even a pathologically long t_period returns >= 1.


.. py:function:: test_zero_period_clamped()

   t_period <= 0 must not divide-by-zero; returns UNLIMITED_FRAMES.


.. py:function:: test_observed_failing_combo_is_capped()

   The 2026-06-16 failing combo (1_000_000 frames at 1 s period,
   = 1_000_000 s ~= 11.6 days) is reduced to a safe value.