Method testConstant

bolt/vector/tests/DecodedVectorTest.cpp:156–181

  template <typename T>
  void testConstant(const T& value) {
    variant var = variant(value);

    auto constantVector =
        BaseVector::createConstant(var.inferType(), var, 100, pool_.get());
    auto check = [&](auto& decoded) {
      EXPECT_TRUE(decoded.isConstantMapping());
      EXPECT_TRUE(!decoded.isIdentityMapping());
      EXPECT_TRUE(decoded.nulls(nullptr) == nullptr);
      for (int32_t i = 0; i < 100; i++) {
        EXPECT_FALSE(decoded.isNullAt(i));
        EXPECT_EQ(decoded.template valueAt<T>(i), value);
      }
    };

    {
      SelectivityVector selection(100);
      DecodedVector decoded(*constantVector, selection);
      check(decoded);
    }

    {
      DecodedVector decoded(*constantVector);
      check(decoded);
    }
  }

  void testConstant(const VectorPtr& base, vector_size_t index) {
    SCOPED_TRACE(base->toString());