pitrou commented on a change in pull request #7555:
URL: https://github.com/apache/arrow/pull/7555#discussion_r450267748
##########
File path: cpp/src/arrow/testing/random.h
##########
@@ -140,6 +140,17 @@ class ARROW_TESTING_EXPORT RandomArrayGenerator {
std::shared_ptr<Array> Int64(int64_t size, int64_t min, int64_t max,
double null_probability = 0);
+ /// \brief Generates a random HalfFloatArray
+ ///
+ /// \param[in] size the size of the array to generate
+ /// \param[in] min the lower bound of the uniform distribution
+ /// \param[in] max the upper bound of the uniform distribution
Review comment:
Hmm... this will not really be a *uniform* float16 distribution if
you're selecting random values for the underlying int16 representation, right?
##########
File path: cpp/src/arrow/ipc/test_common.cc
##########
@@ -79,6 +79,39 @@ Status MakeRandomInt32Array(int64_t length, bool
include_nulls, MemoryPool* pool
return Status::OK();
}
+template <typename ArrayType>
+static Status MakeRandomArray(int64_t length, bool include_nulls, MemoryPool*
pool,
+ std::shared_ptr<Array>* out, uint32_t seed) {
+ random::RandomArrayGenerator rand(seed);
+ const double null_probability = include_nulls ? 0.5 : 0.0;
+
+ *out = rand.Numeric<ArrayType>(length, 0, 1000, null_probability);
+
+ return Status::OK();
+}
+
+template <>
+Status MakeRandomArray<Int8Type>(int64_t length, bool include_nulls,
MemoryPool* pool,
Review comment:
Make those static as well? (or put them in the anonymous namespace)
##########
File path: cpp/src/arrow/ipc/feather_test.cc
##########
@@ -294,6 +325,26 @@ INSTANTIATE_TEST_SUITE_P(
TestParam(kFeatherV2Version, Compression::LZ4_FRAME),
TestParam(kFeatherV2Version, Compression::ZSTD)));
+#define BATCH_CASES()
\
Review comment:
`using kBatchCases = ::testing::Values(...)` perhaps?
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