pitrou commented on code in PR #41037:
URL: https://github.com/apache/arrow/pull/41037#discussion_r1555799766
##########
cpp/src/parquet/encoding_test.cc:
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@@ -635,6 +635,144 @@ TEST(BooleanArrayEncoding, AdHocRoundTrip) {
}
}
+class TestBooleanArrowDecoding : public ::testing::Test {
+ public:
+ // number of values including nulls
+ constexpr static int kNumValues = 10000;
+
+ void SetUp() override {
+ null_probabilities_ = {0.0, 0.001, 0.5, 0.999, 1.0};
+ read_batch_sizes_ = {1024, 4096, 10000};
+ true_probabilities_ = {0.0, 0.001, 0.5, 0.999, 1.0};
+ }
+ void TearDown() override {}
+
+ void InitTestCase(Encoding::type encoding, double null_probability,
+ double true_probability) {
+ GenerateInputData(null_probability, true_probability);
+ SetupEncoderDecoder(encoding);
+ }
+
+ void GenerateInputData(double null_probability, double true_probability) {
+ ::arrow::random::RandomArrayGenerator rag(0);
+ expected_dense_ = rag.Boolean(kNumValues, true_probability,
null_probability);
+ null_count_ = static_cast<int>(expected_dense_->null_count());
+ valid_bits_ = expected_dense_->null_bitmap_data();
+
+ // Initialize input_data_ for the encoder from the expected_array_ values
+ const auto& boolean_array =
+ static_cast<const ::arrow::BooleanArray&>(*expected_dense_);
Review Comment:
Nit: checked_cast?
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