add tests #11398

Job	Run time
devcontainer / build (amd64, 12.2, conda)	29m 7s
checks / check-style	2m 24s
devcontainer / build (amd64, 12.2, pip)	12m 58s
checks / other-checks	59s
static-configure	0s
conda-cpp-build	0s
wheel-build-cudf	0s
unit-tests-cudf-pandas	0s
wheel-tests-cudf	0s
wheel-build-dask-cudf	0s
conda-cpp-checks	0s
conda-cpp-tests	0s
pandas-tests	0s
conda-java-tests	0s
conda-python-build	0s
wheel-tests-dask-cudf	0s
conda-python-cudf-tests	0s
conda-python-other-tests	0s
pandas-tests-diff	0s
conda-notebook-tests	0s
docs-build	0s
pr-builder	1s
	45m 29s

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