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tests for getLeastSupertype and getMostSubtype

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This commit is contained in:
Vasily Nemkov 2019-10-16 16:57:10 +03:00
parent 6280ea086f
commit de1dfd7418
2 changed files with 195 additions and 104 deletions
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2
dbms/src/DataTypes/getLeastSupertype.cpp
View File

@ -214,7 +214,7 @@ DataTypePtr getLeastSupertype(const DataTypes & types)
UInt32 have_datetime = type_ids.count(TypeIndex::DateTime);
UInt32 have_datetime64 = type_ids.count(TypeIndex::DateTime64);
if (have_date || have_datetime)
if (have_date || have_datetime || have_datetime64)
{
bool all_date_or_datetime = type_ids.size() == (have_date + have_datetime + have_datetime64);
if (!all_date_or_datetime)

297
dbms/src/DataTypes/tests/gtest_data_type_get_common_type.cpp
View File

@ -6,117 +6,208 @@
#include <gtest/gtest.h>
namespace DB
{
bool operator==(const IDataType & left, const IDataType & right)
{
return left.equals(right);
}
std::ostream & operator<<(std::ostream & ostr, const IDataType & dt)
{
return ostr << dt.getName();
}
}
using namespace DB;
TEST(data_type, data_type_get_common_type_Test)
auto typeFromString(const std::string & str)
{
auto & data_type_factory = DataTypeFactory::instance();
auto typeFromString = [& data_type_factory](const std::string & str)
{
return data_type_factory.get(str);
};
return data_type_factory.get(str);
};
auto typesFromString = [& typeFromString](const std::string & str)
{
std::istringstream data_types_stream(str);
DataTypes data_types;
std::string data_type;
while (data_types_stream >> data_type)
data_types.push_back(typeFromString(data_type));
auto typesFromString(const std::string & str)
{
std::istringstream data_types_stream(str);
DataTypes data_types;
std::string data_type;
while (data_types_stream >> data_type)
data_types.push_back(typeFromString(data_type));
return data_types;
};
return data_types;
};
ASSERT_TRUE(getLeastSupertype(typesFromString(""))->equals(*typeFromString("Nothing")));
ASSERT_TRUE(getLeastSupertype(typesFromString("Nothing"))->equals(*typeFromString("Nothing")));
struct TypesTestCase
{
const char * from_types;
const char * expected_type = nullptr;
};
ASSERT_TRUE(getLeastSupertype(typesFromString("UInt8"))->equals(*typeFromString("UInt8")));
ASSERT_TRUE(getLeastSupertype(typesFromString("UInt8 UInt8"))->equals(*typeFromString("UInt8")));
ASSERT_TRUE(getLeastSupertype(typesFromString("Int8 Int8"))->equals(*typeFromString("Int8")));
ASSERT_TRUE(getLeastSupertype(typesFromString("UInt8 Int8"))->equals(*typeFromString("Int16")));
ASSERT_TRUE(getLeastSupertype(typesFromString("UInt8 Int16"))->equals(*typeFromString("Int16")));
ASSERT_TRUE(getLeastSupertype(typesFromString("UInt8 UInt32 UInt64"))->equals(*typeFromString("UInt64")));
ASSERT_TRUE(getLeastSupertype(typesFromString("Int8 Int32 Int64"))->equals(*typeFromString("Int64")));
ASSERT_TRUE(getLeastSupertype(typesFromString("UInt8 UInt32 Int64"))->equals(*typeFromString("Int64")));
std::ostream & operator<<(std::ostream & ostr, const TypesTestCase & test_case)
{
ostr << "TypesTestCase{\"" << test_case.from_types << "\", ";
if (test_case.expected_type)
ostr << "\"" << test_case.expected_type << "\"";
else
ostr << "nullptr";
ASSERT_TRUE(getLeastSupertype(typesFromString("Float32 Float64"))->equals(*typeFromString("Float64")));
ASSERT_TRUE(getLeastSupertype(typesFromString("Float32 UInt16 Int16"))->equals(*typeFromString("Float32")));
ASSERT_TRUE(getLeastSupertype(typesFromString("Float32 UInt16 Int32"))->equals(*typeFromString("Float64")));
ASSERT_TRUE(getLeastSupertype(typesFromString("Float32 Int16 UInt32"))->equals(*typeFromString("Float64")));
ASSERT_TRUE(getLeastSupertype(typesFromString("Date Date"))->equals(*typeFromString("Date")));
ASSERT_TRUE(getLeastSupertype(typesFromString("Date DateTime"))->equals(*typeFromString("DateTime")));
ASSERT_TRUE(getLeastSupertype(typesFromString("String FixedString(32) FixedString(8)"))->equals(*typeFromString("String")));
ASSERT_TRUE(getLeastSupertype(typesFromString("Array(UInt8) Array(UInt8)"))->equals(*typeFromString("Array(UInt8)")));
ASSERT_TRUE(getLeastSupertype(typesFromString("Array(UInt8) Array(Int8)"))->equals(*typeFromString("Array(Int16)")));
ASSERT_TRUE(getLeastSupertype(typesFromString("Array(Float32) Array(Int16) Array(UInt32)"))->equals(*typeFromString("Array(Float64)")));
ASSERT_TRUE(getLeastSupertype(typesFromString("Array(Array(UInt8)) Array(Array(UInt8))"))->equals(*typeFromString("Array(Array(UInt8))")));
ASSERT_TRUE(getLeastSupertype(typesFromString("Array(Array(UInt8)) Array(Array(Int8))"))->equals(*typeFromString("Array(Array(Int16))")));
ASSERT_TRUE(getLeastSupertype(typesFromString("Array(Date) Array(DateTime)"))->equals(*typeFromString("Array(DateTime)")));
ASSERT_TRUE(getLeastSupertype(typesFromString("Array(String) Array(FixedString(32))"))->equals(*typeFromString("Array(String)")));
ASSERT_TRUE(getLeastSupertype(typesFromString("Nullable(Nothing) Nothing"))->equals(*typeFromString("Nullable(Nothing)")));
ASSERT_TRUE(getLeastSupertype(typesFromString("Nullable(UInt8) Int8"))->equals(*typeFromString("Nullable(Int16)")));
ASSERT_TRUE(getLeastSupertype(typesFromString("Nullable(Nothing) UInt8 Int8"))->equals(*typeFromString("Nullable(Int16)")));
ASSERT_TRUE(getLeastSupertype(typesFromString("Tuple(Int8,UInt8) Tuple(UInt8,Int8)"))->equals(*typeFromString("Tuple(Int16,Int16)")));
ASSERT_TRUE(getLeastSupertype(typesFromString("Tuple(Nullable(Nothing)) Tuple(Nullable(UInt8))"))->equals(*typeFromString("Tuple(Nullable(UInt8))")));
EXPECT_ANY_THROW(getLeastSupertype(typesFromString("Int8 String")));
EXPECT_ANY_THROW(getLeastSupertype(typesFromString("Int64 UInt64")));
EXPECT_ANY_THROW(getLeastSupertype(typesFromString("Float32 UInt64")));
EXPECT_ANY_THROW(getLeastSupertype(typesFromString("Float64 Int64")));
EXPECT_ANY_THROW(getLeastSupertype(typesFromString("Tuple(Int64) Tuple(UInt64)")));
EXPECT_ANY_THROW(getLeastSupertype(typesFromString("Tuple(Int64, Int8) Tuple(UInt64)")));
EXPECT_ANY_THROW(getLeastSupertype(typesFromString("Array(Int64) Array(String)")));
ASSERT_TRUE(getMostSubtype(typesFromString(""))->equals(*typeFromString("Nothing")));
ASSERT_TRUE(getMostSubtype(typesFromString("Nothing"))->equals(*typeFromString("Nothing")));
ASSERT_TRUE(getMostSubtype(typesFromString("UInt8"))->equals(*typeFromString("UInt8")));
ASSERT_TRUE(getMostSubtype(typesFromString("UInt8 UInt8"))->equals(*typeFromString("UInt8")));
ASSERT_TRUE(getMostSubtype(typesFromString("Int8 Int8"))->equals(*typeFromString("Int8")));
ASSERT_TRUE(getMostSubtype(typesFromString("UInt8 Int8"))->equals(*typeFromString("UInt8")));
ASSERT_TRUE(getMostSubtype(typesFromString("Int8 UInt16"))->equals(*typeFromString("Int8")));
ASSERT_TRUE(getMostSubtype(typesFromString("UInt8 UInt32 UInt64"))->equals(*typeFromString("UInt8")));
ASSERT_TRUE(getMostSubtype(typesFromString("Int8 Int32 Int64"))->equals(*typeFromString("Int8")));
ASSERT_TRUE(getMostSubtype(typesFromString("UInt8 Int64 UInt64"))->equals(*typeFromString("UInt8")));
ASSERT_TRUE(getMostSubtype(typesFromString("Float32 Float64"))->equals(*typeFromString("Float32")));
ASSERT_TRUE(getMostSubtype(typesFromString("Float32 UInt16 Int16"))->equals(*typeFromString("UInt16")));
ASSERT_TRUE(getMostSubtype(typesFromString("Float32 UInt16 Int32"))->equals(*typeFromString("UInt16")));
ASSERT_TRUE(getMostSubtype(typesFromString("Float32 Int16 UInt32"))->equals(*typeFromString("Int16")));
ASSERT_TRUE(getMostSubtype(typesFromString("DateTime DateTime"))->equals(*typeFromString("DateTime")));
ASSERT_TRUE(getMostSubtype(typesFromString("Date DateTime"))->equals(*typeFromString("Date")));
ASSERT_TRUE(getMostSubtype(typesFromString("String FixedString(8)"))->equals(*typeFromString("FixedString(8)")));
ASSERT_TRUE(getMostSubtype(typesFromString("FixedString(16) FixedString(8)"))->equals(*typeFromString("Nothing")));
ASSERT_TRUE(getMostSubtype(typesFromString("Array(UInt8) Array(UInt8)"))->equals(*typeFromString("Array(UInt8)")));
ASSERT_TRUE(getMostSubtype(typesFromString("Array(UInt8) Array(Int8)"))->equals(*typeFromString("Array(UInt8)")));
ASSERT_TRUE(getMostSubtype(typesFromString("Array(Float32) Array(Int16) Array(UInt32)"))->equals(*typeFromString("Array(Int16)")));
ASSERT_TRUE(getMostSubtype(typesFromString("Array(Array(UInt8)) Array(Array(UInt8))"))->equals(*typeFromString("Array(Array(UInt8))")));
ASSERT_TRUE(getMostSubtype(typesFromString("Array(Array(UInt8)) Array(Array(Int8))"))->equals(*typeFromString("Array(Array(UInt8))")));
ASSERT_TRUE(getMostSubtype(typesFromString("Array(Date) Array(DateTime)"))->equals(*typeFromString("Array(Date)")));
ASSERT_TRUE(getMostSubtype(typesFromString("Array(String) Array(FixedString(32))"))->equals(*typeFromString("Array(FixedString(32))")));
ASSERT_TRUE(getMostSubtype(typesFromString("Array(String) Array(FixedString(32))"))->equals(*typeFromString("Array(FixedString(32))")));
ASSERT_TRUE(getMostSubtype(typesFromString("Nullable(Nothing) Nothing"))->equals(*typeFromString("Nothing")));
ASSERT_TRUE(getMostSubtype(typesFromString("Nullable(UInt8) Int8"))->equals(*typeFromString("UInt8")));
ASSERT_TRUE(getMostSubtype(typesFromString("Nullable(Nothing) UInt8 Int8"))->equals(*typeFromString("Nothing")));
ASSERT_TRUE(getMostSubtype(typesFromString("Nullable(UInt8) Nullable(Int8)"))->equals(*typeFromString("Nullable(UInt8)")));
ASSERT_TRUE(getMostSubtype(typesFromString("Nullable(Nothing) Nullable(Int8)"))->equals(*typeFromString("Nullable(Nothing)")));
ASSERT_TRUE(getMostSubtype(typesFromString("Tuple(Int8,UInt8) Tuple(UInt8,Int8)"))->equals(*typeFromString("Tuple(UInt8,UInt8)")));
ASSERT_TRUE(getMostSubtype(typesFromString("Tuple(Nullable(Nothing)) Tuple(Nullable(UInt8))"))->equals(*typeFromString("Tuple(Nullable(Nothing))")));
EXPECT_ANY_THROW(getMostSubtype(typesFromString("Int8 String"), true));
EXPECT_ANY_THROW(getMostSubtype(typesFromString("Nothing"), true));
EXPECT_ANY_THROW(getMostSubtype(typesFromString("FixedString(16) FixedString(8) String"), true));
return ostr << "}";
}
class TypeTest : public ::testing::TestWithParam<TypesTestCase>
{
public:
void SetUp()
{
const auto & p = GetParam();
from_types = typesFromString(p.from_types);
if (p.expected_type)
expected_type = typeFromString(p.expected_type);
else
expected_type.reset();
}
public:
DataTypes from_types;
DataTypePtr expected_type;
};
class LeastSuperTypeTest : public TypeTest {};
TEST_P(LeastSuperTypeTest, getLeastSupertype)
{
if (this->expected_type)
{
ASSERT_EQ(*this->expected_type, *getLeastSupertype(this->from_types));
}
else
{
EXPECT_ANY_THROW(getLeastSupertype(this->from_types));
}
}
class MostSubtypeTest : public TypeTest {};
TEST_P(MostSubtypeTest, getLeastSupertype)
{
if (this->expected_type)
{
ASSERT_EQ(*this->expected_type, *getMostSubtype(this->from_types));
}
else
{
EXPECT_ANY_THROW(getMostSubtype(this->from_types, true));
}
}
INSTANTIATE_TEST_CASE_P(data_type,
LeastSuperTypeTest,
::testing::ValuesIn(
std::initializer_list<TypesTestCase>{
{"", "Nothing"},
{"Nothing", "Nothing"},
{"UInt8", "UInt8"},
{"UInt8 UInt8", "UInt8"},
{"Int8 Int8", "Int8"},
{"UInt8 Int8", "Int16"},
{"UInt8 Int16", "Int16"},
{"UInt8 UInt32 UInt64", "UInt64"},
{"Int8 Int32 Int64", "Int64"},
{"UInt8 UInt32 Int64", "Int64"},
{"Float32 Float64", "Float64"},
{"Float32 UInt16 Int16", "Float32"},
{"Float32 UInt16 Int32", "Float64"},
{"Float32 Int16 UInt32", "Float64"},
{"Date Date", "Date"},
{"Date DateTime", "DateTime"},
{"Date DateTime64(3)", "DateTime64(3)"},
{"DateTime DateTime64(3)", "DateTime64(3)"},
// {"DateTime64(9) DateTime64(3)", "DateTime64(9)"},
// {"DateTime DateTime64(12)", nullptr},
// {"Date DateTime64(15)", nullptr},
{"String FixedString(32) FixedString(8)", "String"},
{"Array(UInt8) Array(UInt8)", "Array(UInt8)"},
{"Array(UInt8) Array(Int8)", "Array(Int16)"},
{"Array(Float32) Array(Int16) Array(UInt32)", "Array(Float64)"},
{"Array(Array(UInt8)) Array(Array(UInt8))", "Array(Array(UInt8))"},
{"Array(Array(UInt8)) Array(Array(Int8))", "Array(Array(Int16))"},
{"Array(Date) Array(DateTime)", "Array(DateTime)"},
{"Array(String) Array(FixedString(32))", "Array(String)"},
{"Nullable(Nothing) Nothing", "Nullable(Nothing)"},
{"Nullable(UInt8) Int8", "Nullable(Int16)"},
{"Nullable(Nothing) UInt8 Int8", "Nullable(Int16)"},
{"Tuple(Int8,UInt8) Tuple(UInt8,Int8)", "Tuple(Int16,Int16)"},
{"Tuple(Nullable(Nothing)) Tuple(Nullable(UInt8))", "Tuple(Nullable(UInt8))"},
{"Int8 String", nullptr},
{"Int64 UInt64", nullptr},
{"Float32 UInt64", nullptr},
{"Float64 Int64", nullptr},
{"Tuple(Int64) Tuple(UInt64)", nullptr},
{"Tuple(Int64,Int8) Tuple(UInt64)", nullptr},
{"Array(Int64) Array(String)", nullptr},
}
),
);
INSTANTIATE_TEST_CASE_P(data_type,
MostSubtypeTest,
::testing::ValuesIn(
std::initializer_list<TypesTestCase>{
{"", "Nothing"},
{"Nothing", "Nothing"},
{"UInt8", "UInt8"},
{"UInt8 UInt8", "UInt8"},
{"Int8 Int8", "Int8"},
{"UInt8 Int8", "UInt8"},
{"Int8 UInt16", "Int8"},
{"UInt8 UInt32 UInt64", "UInt8"},
{"Int8 Int32 Int64", "Int8"},
{"UInt8 Int64 UInt64", "UInt8"},
{"Float32 Float64", "Float32"},
{"Float32 UInt16 Int16", "UInt16"},
{"Float32 UInt16 Int32", "UInt16"},
{"Float32 Int16 UInt32", "Int16"},
{"DateTime DateTime", "DateTime"},
{"Date DateTime", "Date"},
{"String FixedString(8)", "FixedString(8)"},
{"FixedString(16) FixedString(8)", "Nothing"},
{"Array(UInt8) Array(UInt8)", "Array(UInt8)"},
{"Array(UInt8) Array(Int8)", "Array(UInt8)"},
{"Array(Float32) Array(Int16) Array(UInt32)", "Array(Int16)"},
{"Array(Array(UInt8)) Array(Array(UInt8))", "Array(Array(UInt8))"},
{"Array(Array(UInt8)) Array(Array(Int8))", "Array(Array(UInt8))"},
{"Array(Date) Array(DateTime)", "Array(Date)"},
{"Array(String) Array(FixedString(32))", "Array(FixedString(32))"},
{"Array(String) Array(FixedString(32))", "Array(FixedString(32))"},
{"Nullable(Nothing) Nothing", "Nothing"},
{"Nullable(UInt8) Int8", "UInt8"},
{"Nullable(Nothing) UInt8 Int8", "Nothing"},
{"Nullable(UInt8) Nullable(Int8)", "Nullable(UInt8)"},
{"Nullable(Nothing) Nullable(Int8)", "Nullable(Nothing)"},
{"Tuple(Int8,UInt8) Tuple(UInt8,Int8)", "Tuple(UInt8,UInt8)"},
{"Tuple(Nullable(Nothing)) Tuple(Nullable(UInt8))", "Tuple(Nullable(Nothing))"},
{"Int8 String", nullptr},
{"Nothing", nullptr},
{"FixedString(16) FixedString(8) String", nullptr},
}),
);