added	tests/lib/tpp_categorical_columns.csv
added	tests/lib/tpp_data_dictionary.csv
added	tests/lib/tpp_decision_support_reference.csv
added	tests/lib/tpp_schema.csv
added	tests/lib/tpp_schema.py
added	tests/lib/update_tpp_schema.py
added	tests/spec/README.md
added	tests/spec/__init__.py
added	tests/spec/aggregate_frame/__init__.py
added	tests/spec/aggregate_frame/test_count_for_patient.py
added	tests/spec/aggregate_frame/test_exists_for_patient.py
added	tests/spec/aggregate_series/__init__.py
added	tests/spec/aggregate_series/test_count_distinct_for_patient.py
added	tests/spec/aggregate_series/test_mean_for_patient.py
added	tests/spec/aggregate_series/test_minimum_and_maximum_for_patient.py
added	tests/spec/aggregate_series/test_sum_for_patient.py
added	tests/spec/bool_series_ops/__init__.py
added	tests/spec/bool_series_ops/test_conversion.py
added	tests/spec/bool_series_ops/test_logical_ops.py
added	tests/spec/case_expressions/__init__.py
added	tests/spec/case_expressions/test_case.py
added	tests/spec/case_expressions/test_when.py
added	tests/spec/code_series_ops/__init__.py
added	tests/spec/code_series_ops/test_containment.py
added	tests/spec/code_series_ops/test_map_codes_to_categories.py