lidavidm commented on code in PR #13037:
URL: https://github.com/apache/arrow/pull/13037#discussion_r862789676
##########
cpp/src/arrow/compute/kernels/scalar_compare_test.cc:
##########
@@ -502,6 +502,53 @@ TEST(TestCompareTimestamps, DifferentParameters) {
}
}
+TEST(TestCompareTimestamps, ScalarArray) {
+ const char* scalar_json = R"("1970-01-02")";
+ const char* array_json = R"(["1970-01-02","2000-02-01","1900-02-28"])";
Review Comment:
Can we add a `null` element here too?
##########
cpp/src/arrow/compute/kernels/scalar_compare_test.cc:
##########
@@ -502,6 +502,53 @@ TEST(TestCompareTimestamps, DifferentParameters) {
}
}
+TEST(TestCompareTimestamps, ScalarArray) {
+ const char* scalar_json = R"("1970-01-02")";
+ const char* array_json = R"(["1970-01-02","2000-02-01","1900-02-28"])";
+
+ auto CheckArrayCase = [&](std::shared_ptr<DataType> scalar_type,
+ std::shared_ptr<DataType> array_type,
CompareOperator op,
+ const char* expected_json) {
+ auto lhs = ScalarFromJSON(scalar_type, scalar_json);
+ auto rhs = ArrayFromJSON(array_type, array_json);
+ auto expected = ArrayFromJSON(boolean(), expected_json);
+ if (scalar_type->Equals(array_type)) {
+ ASSERT_OK_AND_ASSIGN(Datum result,
+ CallFunction(CompareOperatorToFunctionName(op),
{lhs, rhs}));
+ AssertArraysEqual(*expected, *result.make_array(), /*verbose=*/true);
+ } else {
+ EXPECT_RAISES_WITH_MESSAGE_THAT(
+ Invalid,
+ ::testing::HasSubstr(
+ "Cannot compare timestamp with timezone to timestamp without
timezone"),
+ CallFunction(CompareOperatorToFunctionName(op), {lhs, rhs}));
+ }
+ };
+
+ for (auto unit : {
+ TimeUnit::SECOND,
+ TimeUnit::MILLI,
+ TimeUnit::MICRO,
+ TimeUnit::NANO,
+ }) {
+ for (auto types :
+ std::vector<std::pair<std::shared_ptr<DataType>,
std::shared_ptr<DataType>>>{
+ {timestamp(unit), timestamp(unit)},
+ {timestamp(unit), timestamp(unit, "utc")},
+ {timestamp(unit, "utc"), timestamp(unit)},
+ {timestamp(unit, "utc"), timestamp(unit, "utc")},
+ }) {
+ auto t0 = types.first, t1 = types.second;
+ CheckArrayCase(t0, t1, CompareOperator::EQUAL, "[true, false, false]");
Review Comment:
At the very least we should test that the comparison works when the scalar
is second. And then it would likely be easier to write it out instead of trying
to factor out a helper function.
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