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1524288127
Currently, the Value class is essentially a "pImpl" wrapper around the ValueImpl hierarchy of classes. This is a bit difficult to follow and reason about, as methods jump between the Value class and its impl classes. This changes the Variant held by Value to instead store the specified types (String, int, etc.) directly. In doing so, the ValueImpl classes are removed, and all methods are now just concise Variant visitors. As part of this rewrite, support for the "array" type is dropped (or rather, just not re-implemented) as it was unused. If it's needed in the future, support can be re-added. This does retain the ability for non-NULL types to store NULL values (i.e. an empty Optional). I tried dropping this support as well, but it is depended upon by the on-disk storage classes in non-trivial ways.
570 lines
16 KiB
C++
570 lines
16 KiB
C++
/*
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* Copyright (c) 2021, Jan de Visser <jan@de-visser.net>
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* Copyright (c) 2022, Tim Flynn <trflynn89@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <unistd.h>
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#include <LibSQL/Meta.h>
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#include <LibSQL/Row.h>
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#include <LibSQL/Tuple.h>
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#include <LibSQL/Value.h>
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#include <LibTest/TestCase.h>
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TEST_CASE(null_value)
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{
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SQL::Value v(SQL::SQLType::Null);
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EXPECT_EQ(v.type(), SQL::SQLType::Null);
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EXPECT_EQ(v.to_string(), "(null)"sv);
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EXPECT(!v.to_bool().has_value());
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EXPECT(!v.to_int().has_value());
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EXPECT(!v.to_u32().has_value());
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EXPECT(!v.to_double().has_value());
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}
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TEST_CASE(assign_null)
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{
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SQL::Value v("Test");
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EXPECT_EQ(v.type(), SQL::SQLType::Text);
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EXPECT(!v.is_null());
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v = SQL::Value();
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EXPECT_EQ(v.type(), SQL::SQLType::Null);
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EXPECT(v.is_null());
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}
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TEST_CASE(text_value)
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{
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{
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SQL::Value v(SQL::SQLType::Text);
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EXPECT_EQ(v.type(), SQL::SQLType::Text);
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EXPECT(v.is_null());
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v = "Test"sv;
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EXPECT_EQ(v.type(), SQL::SQLType::Text);
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EXPECT_EQ(v.to_string(), "Test"sv);
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}
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{
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SQL::Value v(String("String Test"sv));
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EXPECT_EQ(v.type(), SQL::SQLType::Text);
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EXPECT_EQ(v.to_string(), "String Test"sv);
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v = String("String Test 2"sv);
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EXPECT_EQ(v.type(), SQL::SQLType::Text);
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EXPECT_EQ(v.to_string(), "String Test 2"sv);
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}
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{
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SQL::Value v("const char * Test");
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EXPECT_EQ(v.type(), SQL::SQLType::Text);
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EXPECT_EQ(v.to_string(), "const char * Test"sv);
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v = "const char * Test 2";
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EXPECT_EQ(v.type(), SQL::SQLType::Text);
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EXPECT_EQ(v.to_string(), "const char * Test 2"sv);
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}
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}
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TEST_CASE(text_value_to_other_types)
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{
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{
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SQL::Value v("42");
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EXPECT_EQ(v.type(), SQL::SQLType::Text);
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EXPECT(v.to_int().has_value());
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EXPECT_EQ(v.to_int().value(), 42);
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EXPECT(v.to_double().has_value());
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EXPECT((v.to_double().value() - 42.0) < NumericLimits<double>().epsilon());
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}
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{
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SQL::Value v("true");
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EXPECT_EQ(v.type(), SQL::SQLType::Text);
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EXPECT(v.to_bool().has_value());
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EXPECT(v.to_bool().value());
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}
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{
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SQL::Value v("false");
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EXPECT_EQ(v.type(), SQL::SQLType::Text);
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EXPECT(v.to_bool().has_value());
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EXPECT(!v.to_bool().value());
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}
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{
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SQL::Value v("foo");
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EXPECT_EQ(v.type(), SQL::SQLType::Text);
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EXPECT(!v.to_bool().has_value());
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EXPECT(!v.to_int().has_value());
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EXPECT(!v.to_u32().has_value());
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EXPECT(!v.to_double().has_value());
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}
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{
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SQL::Value v("3.14");
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EXPECT_EQ(v.type(), SQL::SQLType::Text);
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EXPECT(v.to_double().has_value());
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EXPECT((v.to_double().value() - 3.14) < NumericLimits<double>().epsilon());
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}
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}
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TEST_CASE(assign_int_to_text_value)
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{
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SQL::Value v(SQL::SQLType::Text);
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EXPECT_EQ(v.type(), SQL::SQLType::Text);
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EXPECT(v.is_null());
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v = 42;
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EXPECT_EQ(v.type(), SQL::SQLType::Integer);
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EXPECT_EQ(v, 42);
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}
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TEST_CASE(serialize_text_value)
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{
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SQL::Value v("Test");
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EXPECT_EQ(v.type(), SQL::SQLType::Text);
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EXPECT_EQ(v, "Test"sv);
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SQL::Serializer serializer;
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serializer.serialize<SQL::Value>(v);
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serializer.rewind();
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auto v2 = serializer.deserialize<SQL::Value>();
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EXPECT_EQ(v2.type(), SQL::SQLType::Text);
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EXPECT_EQ(v2, "Test"sv);
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EXPECT_EQ(v2, v);
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}
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TEST_CASE(integer_value)
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{
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{
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SQL::Value v(SQL::SQLType::Integer);
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EXPECT_EQ(v.type(), SQL::SQLType::Integer);
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EXPECT(v.is_null());
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v = 42;
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EXPECT_EQ(v.type(), SQL::SQLType::Integer);
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EXPECT(v.to_int().has_value());
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EXPECT_EQ(v.to_int().value(), 42);
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EXPECT_EQ(v.to_string(), "42"sv);
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EXPECT(v.to_double().has_value());
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EXPECT((v.to_double().value() - 42.0) < NumericLimits<double>().epsilon());
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EXPECT(v.to_bool().has_value());
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EXPECT(v.to_bool().value());
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}
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{
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SQL::Value v(0);
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EXPECT_EQ(v.type(), SQL::SQLType::Integer);
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EXPECT(v.to_int().has_value());
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EXPECT_EQ(v.to_int().value(), 0);
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EXPECT(v.to_bool().has_value());
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EXPECT(!v.to_bool().value());
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}
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{
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SQL::Value v(42);
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EXPECT_EQ(v.type(), SQL::SQLType::Integer);
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EXPECT(v.to_int().has_value());
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EXPECT_EQ(v.to_int().value(), 42);
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}
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{
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SQL::Value text("42");
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SQL::Value integer(SQL::SQLType::Integer);
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integer = text;
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EXPECT(integer.to_int().has_value());
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EXPECT_EQ(integer.to_int().value(), 42);
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}
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}
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TEST_CASE(serialize_int_value)
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{
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SQL::Value v(42);
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EXPECT_EQ(v.type(), SQL::SQLType::Integer);
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EXPECT_EQ(v, 42);
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SQL::Serializer serializer;
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serializer.serialize<SQL::Value>(v);
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serializer.rewind();
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auto v2 = serializer.deserialize<SQL::Value>();
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EXPECT_EQ(v2.type(), SQL::SQLType::Integer);
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EXPECT_EQ(v2, 42);
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EXPECT_EQ(v2, v);
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}
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TEST_CASE(float_value)
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{
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{
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SQL::Value v(SQL::SQLType::Float);
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EXPECT_EQ(v.type(), SQL::SQLType::Float);
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EXPECT(v.is_null());
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v = 3.14;
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EXPECT_EQ(v.type(), SQL::SQLType::Float);
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EXPECT(v.to_double().has_value());
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EXPECT((v.to_double().value() - 3.14) < NumericLimits<double>().epsilon());
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EXPECT(v.to_int().has_value());
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EXPECT_EQ(v.to_int().value(), 3);
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EXPECT_EQ(v.to_string(), "3.14");
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EXPECT(v.to_bool().has_value());
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EXPECT(v.to_bool().value());
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v = 0.0;
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EXPECT_EQ(v.type(), SQL::SQLType::Float);
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EXPECT(v.to_double().has_value());
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EXPECT(v.to_double().value() < NumericLimits<double>().epsilon());
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EXPECT(v.to_int().has_value());
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EXPECT_EQ(v.to_int().value(), 0);
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EXPECT_EQ(v.to_string(), "0"sv);
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EXPECT(v.to_bool().has_value());
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EXPECT(!v.to_bool().value());
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}
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{
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SQL::Value v(3.14);
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EXPECT_EQ(v.type(), SQL::SQLType::Float);
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EXPECT((v.to_double().value() - 3.14) < NumericLimits<double>().epsilon());
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}
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{
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SQL::Value v(3.51);
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EXPECT_EQ(v.type(), SQL::SQLType::Float);
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EXPECT(v.to_int().has_value());
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EXPECT_EQ(v.to_int().value(), 4);
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}
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{
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SQL::Value v(-3.14);
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EXPECT_EQ(v.type(), SQL::SQLType::Float);
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EXPECT(v.to_int().has_value());
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EXPECT_EQ(v.to_int().value(), -3);
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}
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{
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SQL::Value v(-3.51);
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EXPECT_EQ(v.type(), SQL::SQLType::Float);
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EXPECT(v.to_int().has_value());
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EXPECT_EQ(v.to_int().value(), -4);
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}
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}
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TEST_CASE(serialize_float_value)
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{
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SQL::Value v(3.14);
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EXPECT_EQ(v.type(), SQL::SQLType::Float);
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EXPECT(v.to_double().value() - 3.14 < NumericLimits<double>().epsilon());
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SQL::Serializer serializer;
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serializer.serialize<SQL::Value>(v);
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serializer.rewind();
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auto v2 = serializer.deserialize<SQL::Value>();
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EXPECT_EQ(v2.type(), SQL::SQLType::Float);
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EXPECT((v.to_double().value() - 3.14) < NumericLimits<double>().epsilon());
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EXPECT_EQ(v2, v);
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}
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TEST_CASE(copy_value)
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{
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SQL::Value text("42");
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SQL::Value copy(text);
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EXPECT_EQ(copy, "42"sv);
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}
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TEST_CASE(compare_text_to_int)
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{
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SQL::Value text("42");
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SQL::Value integer(42);
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EXPECT_EQ(text, integer);
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EXPECT_EQ(integer, text);
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}
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TEST_CASE(bool_value)
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{
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{
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SQL::Value v(SQL::SQLType::Boolean);
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EXPECT_EQ(v.type(), SQL::SQLType::Boolean);
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EXPECT(v.is_null());
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v = true;
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EXPECT_EQ(v.type(), SQL::SQLType::Boolean);
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EXPECT(v.to_bool().has_value());
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EXPECT(v.to_bool().value());
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EXPECT(v.to_int().has_value());
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EXPECT_EQ(v.to_int().value(), 1);
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EXPECT_EQ(v.to_string(), "true"sv);
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EXPECT(v.to_double().has_value());
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EXPECT((v.to_double().value() - 1.0) < NumericLimits<double>().epsilon());
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}
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{
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SQL::Value v(false);
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EXPECT_EQ(v.type(), SQL::SQLType::Boolean);
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EXPECT(v.to_bool().has_value());
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EXPECT(!v.to_bool().value());
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EXPECT(v.to_int().has_value());
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EXPECT_EQ(v.to_int().value(), 0);
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EXPECT_EQ(v.to_string(), "false"sv);
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EXPECT(v.to_double().has_value());
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EXPECT(v.to_double().value() < NumericLimits<double>().epsilon());
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}
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{
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SQL::Value v(true);
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EXPECT_EQ(v.type(), SQL::SQLType::Boolean);
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EXPECT(v.to_bool().has_value());
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EXPECT(v.to_bool().value());
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EXPECT(v.to_int().has_value());
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EXPECT_EQ(v.to_int().value(), 1);
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EXPECT_EQ(v.to_string(), "true"sv);
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EXPECT(v.to_double().has_value());
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EXPECT((v.to_double().value() - 1.0) < NumericLimits<double>().epsilon());
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}
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}
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TEST_CASE(serialize_boolean_value)
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{
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SQL::Value v(true);
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EXPECT_EQ(v.type(), SQL::SQLType::Boolean);
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EXPECT_EQ(v.to_bool(), true);
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SQL::Serializer serializer;
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serializer.serialize<SQL::Value>(v);
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serializer.rewind();
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auto v2 = serializer.deserialize<SQL::Value>();
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EXPECT_EQ(v2.type(), SQL::SQLType::Boolean);
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EXPECT_EQ(v2.to_bool(), true);
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EXPECT_EQ(v, v2);
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}
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TEST_CASE(tuple_value)
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{
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NonnullRefPtr<SQL::TupleDescriptor> descriptor = adopt_ref(*new SQL::TupleDescriptor);
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descriptor->append({ "schema", "table", "col1", SQL::SQLType::Text, SQL::Order::Ascending });
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descriptor->append({ "schema", "table", "col2", SQL::SQLType::Integer, SQL::Order::Descending });
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auto v = MUST(SQL::Value::create_tuple(move(descriptor)));
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Vector<SQL::Value> values;
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values.empend("Test");
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values.empend(42);
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MUST(v.assign_tuple(values));
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auto values2 = v.to_vector();
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EXPECT(values2.has_value());
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EXPECT_EQ(values, values2.value());
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}
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TEST_CASE(copy_tuple_value)
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{
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NonnullRefPtr<SQL::TupleDescriptor> descriptor = adopt_ref(*new SQL::TupleDescriptor);
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descriptor->append({ "schema", "table", "col1", SQL::SQLType::Text, SQL::Order::Ascending });
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descriptor->append({ "schema", "table", "col2", SQL::SQLType::Integer, SQL::Order::Descending });
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auto v = MUST(SQL::Value::create_tuple(move(descriptor)));
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Vector<SQL::Value> values;
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values.empend("Test");
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values.empend(42);
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MUST(v.assign_tuple(values));
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auto values2 = v;
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EXPECT_EQ(values2.type(), v.type());
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EXPECT_EQ(v.type(), SQL::SQLType::Tuple);
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EXPECT_EQ(values, values2.to_vector().value());
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}
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TEST_CASE(tuple_value_wrong_type)
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{
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NonnullRefPtr<SQL::TupleDescriptor> descriptor = adopt_ref(*new SQL::TupleDescriptor);
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descriptor->append({ "schema", "table", "col1", SQL::SQLType::Text, SQL::Order::Ascending });
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auto v = MUST(SQL::Value::create_tuple(move(descriptor)));
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Vector<SQL::Value> values;
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values.empend(42);
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auto result = v.assign_tuple(move(values));
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EXPECT(result.is_error());
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}
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TEST_CASE(tuple_value_too_many_values)
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{
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NonnullRefPtr<SQL::TupleDescriptor> descriptor = adopt_ref(*new SQL::TupleDescriptor);
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descriptor->append({ "schema", "table", "col1", SQL::SQLType::Text, SQL::Order::Ascending });
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auto v = MUST(SQL::Value::create_tuple(move(descriptor)));
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Vector<SQL::Value> values;
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values.empend("Test");
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values.empend(42);
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auto result = v.assign_tuple(move(values));
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EXPECT(result.is_error());
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}
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TEST_CASE(tuple_value_not_enough_values)
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{
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NonnullRefPtr<SQL::TupleDescriptor> descriptor = adopt_ref(*new SQL::TupleDescriptor);
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descriptor->append({ "schema", "table", "col1", SQL::SQLType::Text, SQL::Order::Ascending });
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descriptor->append({ "schema", "table", "col2", SQL::SQLType::Integer, SQL::Order::Ascending });
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auto v = MUST(SQL::Value::create_tuple(move(descriptor)));
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Vector<SQL::Value> values;
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values.empend("Test");
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MUST(v.assign_tuple(values));
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EXPECT_EQ(v.type(), SQL::SQLType::Tuple);
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auto values_opt = v.to_vector();
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EXPECT(values_opt.has_value());
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EXPECT_EQ(values_opt.value().size(), 2u);
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auto col2 = values_opt.value()[1];
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EXPECT_EQ(col2.type(), SQL::SQLType::Integer);
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}
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TEST_CASE(serialize_tuple_value)
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{
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NonnullRefPtr<SQL::TupleDescriptor> descriptor = adopt_ref(*new SQL::TupleDescriptor);
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descriptor->append({ "schema", "table", "col1", SQL::SQLType::Text, SQL::Order::Ascending });
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descriptor->append({ "schema", "table", "col2", SQL::SQLType::Integer, SQL::Order::Descending });
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auto v = MUST(SQL::Value::create_tuple(move(descriptor)));
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Vector<SQL::Value> values;
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values.empend("Test");
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values.empend(42);
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MUST(v.assign_tuple(values));
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SQL::Serializer serializer;
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serializer.serialize<SQL::Value>(v);
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serializer.rewind();
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auto v2 = serializer.deserialize<SQL::Value>();
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EXPECT_EQ(v2.type(), SQL::SQLType::Tuple);
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EXPECT_EQ(v, v2);
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}
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TEST_CASE(order_text_values)
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{
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SQL::Value v1(SQL::SQLType::Text);
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v1 = "Test_A";
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SQL::Value v2(SQL::SQLType::Text);
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v2 = "Test_B";
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EXPECT(v1 <= v2);
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EXPECT(v1 < v2);
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EXPECT(v2 >= v1);
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EXPECT(v2 > v1);
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}
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TEST_CASE(order_int_values)
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{
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SQL::Value v1(SQL::SQLType::Integer);
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v1 = 12;
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SQL::Value v2(SQL::SQLType::Integer);
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v2 = 42;
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EXPECT(v1 <= v2);
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EXPECT(v1 < v2);
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EXPECT(v2 >= v1);
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EXPECT(v2 > v1);
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}
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TEST_CASE(tuple)
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{
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NonnullRefPtr<SQL::TupleDescriptor> descriptor = adopt_ref(*new SQL::TupleDescriptor);
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descriptor->append({ "schema", "table", "col1", SQL::SQLType::Text, SQL::Order::Ascending });
|
|
descriptor->append({ "schema", "table", "col2", SQL::SQLType::Integer, SQL::Order::Descending });
|
|
SQL::Tuple tuple(descriptor);
|
|
|
|
tuple["col1"] = "Test";
|
|
tuple["col2"] = 42;
|
|
EXPECT_EQ(tuple[0], "Test"sv);
|
|
EXPECT_EQ(tuple[1], 42);
|
|
}
|
|
|
|
TEST_CASE(serialize_tuple)
|
|
{
|
|
NonnullRefPtr<SQL::TupleDescriptor> descriptor = adopt_ref(*new SQL::TupleDescriptor);
|
|
descriptor->append({ "schema", "table", "col1", SQL::SQLType::Text, SQL::Order::Ascending });
|
|
descriptor->append({ "schema", "table", "col2", SQL::SQLType::Integer, SQL::Order::Descending });
|
|
SQL::Tuple tuple(descriptor);
|
|
|
|
tuple["col1"] = "Test";
|
|
tuple["col2"] = 42;
|
|
|
|
EXPECT_EQ(tuple[0], "Test"sv);
|
|
EXPECT_EQ(tuple[1], 42);
|
|
|
|
SQL::Serializer serializer;
|
|
serializer.serialize<SQL::Tuple>(tuple);
|
|
|
|
serializer.rewind();
|
|
auto tuple2 = serializer.deserialize<SQL::Tuple>();
|
|
EXPECT_EQ(tuple2[0], "Test"sv);
|
|
EXPECT_EQ(tuple2[1], 42);
|
|
}
|
|
|
|
TEST_CASE(copy_tuple)
|
|
{
|
|
NonnullRefPtr<SQL::TupleDescriptor> descriptor = adopt_ref(*new SQL::TupleDescriptor);
|
|
descriptor->append({ "schema", "table", "col1", SQL::SQLType::Text, SQL::Order::Ascending });
|
|
descriptor->append({ "schema", "table", "col2", SQL::SQLType::Integer, SQL::Order::Descending });
|
|
SQL::Tuple tuple(descriptor);
|
|
|
|
tuple["col1"] = "Test";
|
|
tuple["col2"] = 42;
|
|
|
|
SQL::Tuple copy;
|
|
copy = tuple;
|
|
EXPECT_EQ(tuple, copy);
|
|
|
|
SQL::Tuple copy_2(copy);
|
|
EXPECT_EQ(tuple, copy_2);
|
|
}
|
|
|
|
TEST_CASE(compare_tuples)
|
|
{
|
|
NonnullRefPtr<SQL::TupleDescriptor> descriptor = adopt_ref(*new SQL::TupleDescriptor);
|
|
descriptor->append({ "schema", "table", "col1", SQL::SQLType::Text, SQL::Order::Ascending });
|
|
descriptor->append({ "schema", "table", "col2", SQL::SQLType::Integer, SQL::Order::Descending });
|
|
|
|
SQL::Tuple tuple1(descriptor);
|
|
tuple1["col1"] = "Test";
|
|
tuple1["col2"] = 42;
|
|
|
|
SQL::Tuple tuple2(descriptor);
|
|
tuple2["col1"] = "Test";
|
|
tuple2["col2"] = 12;
|
|
|
|
SQL::Tuple tuple3(descriptor);
|
|
tuple3["col1"] = "Text";
|
|
tuple3["col2"] = 12;
|
|
|
|
EXPECT(tuple1 <= tuple2);
|
|
EXPECT(tuple1 < tuple2);
|
|
EXPECT(tuple2 >= tuple1);
|
|
EXPECT(tuple2 > tuple1);
|
|
|
|
EXPECT(tuple1 <= tuple3);
|
|
EXPECT(tuple1 < tuple3);
|
|
EXPECT(tuple3 >= tuple1);
|
|
EXPECT(tuple3 > tuple1);
|
|
}
|