Function TEST

cpp/src/arrow/acero/util_test.cc:33–51

const char* kRightSuffix = ".right";

TEST(FieldMap, Trivial) {
  HashJoinSchema schema_mgr;

  auto left = schema({field("i32", int32())});
  auto right = schema({field("i32", int32())});

  ASSERT_OK(schema_mgr.Init(JoinType::INNER, *left, {"i32"}, *right, {"i32"},
                            literal(true), kLeftSuffix, kRightSuffix));

  auto output = schema_mgr.MakeOutputSchema(kLeftSuffix, kRightSuffix);
  EXPECT_THAT(*output, Eq(Schema({
                           field("i32.left", int32()),
                           field("i32.right", int32()),
                       })));

  auto i =
      schema_mgr.proj_maps[0].map(HashJoinProjection::INPUT, HashJoinProjection::OUTPUT);
  EXPECT_EQ(i.get(0), 0);
}

TEST(FieldMap, TrivialDuplicates) {
  HashJoinSchema schema_mgr;