pitrou commented on a change in pull request #11370:
URL: https://github.com/apache/arrow/pull/11370#discussion_r727129830
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File path: cpp/src/arrow/compute/kernels/aggregate_test.cc
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@@ -2265,6 +2264,53 @@ TYPED_TEST(TestStringIndexKernel, Basics) {
this->AssertIndexIs(R"(["foo", null, null])", null_value, -1);
}
+TEST(TestIndexKernel, FixedSizeBinary) {
+ auto ty = fixed_size_binary(3);
+ auto buffer = Buffer::FromString("foo");
+ auto value = std::make_shared<FixedSizeBinaryScalar>(buffer, ty);
+ auto null_value = std::make_shared<FixedSizeBinaryScalar>(buffer, ty);
+ null_value->is_valid = false;
+
+ CheckIndex(ArrayFromJSON(ty, R"([])"), value, -1);
+ CheckIndex(ArrayFromJSON(ty, R"(["foo"])"), value, 0);
+ CheckIndex(ArrayFromJSON(ty, R"(["bar", "bar", "bar", "bar"])"), value, -1);
+ CheckIndex(ArrayFromJSON(ty, R"(["bar", "bar", "bar", "bar", "foo"])"),
value, 4);
+ CheckIndex(ArrayFromJSON(ty, R"([null, null, null])"), value, -1);
+ CheckIndex(ArrayFromJSON(ty, R"([null, null, null])"), null_value, -1);
+ CheckIndex(ArrayFromJSON(ty, R"(["foo", null, null])"), null_value, -1);
+}
+
+TEST(TestIndexKernel, Decimal) {
+ for (const auto& ty : {decimal128(3, 2), decimal256(3, 2)}) {
+ std::shared_ptr<Scalar> value, null_value;
+ if (ty->id() == Type::DECIMAL128) {
+ value = std::make_shared<Decimal128Scalar>(Decimal128(123), ty);
+ null_value = std::make_shared<Decimal128Scalar>(ty);
+ } else {
+ value = std::make_shared<Decimal256Scalar>(Decimal256(123), ty);
+ null_value = std::make_shared<Decimal256Scalar>(ty);
+ }
+
+ CheckIndex(ArrayFromJSON(ty, R"([])"), value, -1);
+ CheckIndex(ArrayFromJSON(ty, R"(["1.23"])"), value, 0);
+ CheckIndex(ArrayFromJSON(ty, R"(["9.99", "9.99", "9.99", "9.99"])"),
value, -1);
+ CheckIndex(ArrayFromJSON(ty, R"(["9.99", "9.99", "9.99", "9.99",
"1.23"])"), value,
+ 4);
+ CheckIndex(ArrayFromJSON(ty, R"([null, null, null])"), value, -1);
+ CheckIndex(ArrayFromJSON(ty, R"([null, null, null])"), null_value, -1);
+ CheckIndex(ArrayFromJSON(ty, R"(["1.23", null, null])"), null_value, -1);
+ }
+}
+
+TEST(TestIndexKernel, Null) {
+ auto ty = null();
+ auto value = std::make_shared<NullScalar>();
+
+ CheckIndex(ArrayFromJSON(ty, R"([])"), value, -1);
+ CheckIndex(ArrayFromJSON(ty, R"([null])"), value, -1);
+ CheckIndex(ArrayFromJSON(ty, R"([null, null, null, null])"), value, -1);
+}
+
Review comment:
By the way, what happens if the index scalar type doesn't match the
input array type? Is it tested somewhere?
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