[ENH] test for more than one parameter sets per estimator#2862
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[ENH] test for more than one parameter sets per estimator#2862
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This was referenced Sep 14, 2022
fkiraly
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Sep 21, 2022
Towards #3429. This adds a second parameter set for all estimators checked via `check_estimator` in the `no-softdeps` CI element. This is generally useful, and also allows #2862 to pass that CI element. Also fixes a bug discovered through this: `ExponentTransformer.inverse_transform` breaking if `power` is close to zero. This is now dealt with by a skip and a warning.
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FYI @julia-kraus, the test failures point precisely to the estimators with only one test parameter set. |
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In order to test parameter settings for estimators properly, each important parameter should have been set to a non-default.
This PR introduces a test which checks that there are at least two test parameter sets (if the estimator has at least one parameter), and correctness of these sets.
Requires:
get_test_params, and reserved parameters #4279 for the general test forget_test_params(no specific number assumed)set_paramsto callreset, to comply withsklearnparameter interface assumptions #2835 as it uses the parameter name interfaceno-softdepsstep.Current estimators are not tested due to differential testing.
If diff testing is turned off, helps tracking down the estimators that do not yet have two parameter sets, see #3429.