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vector.cc
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executable file
·397 lines (268 loc) · 8.29 KB
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#include <gtest/gtest.h>
#include "allscale/utils/string_utils.h"
#include "allscale/utils/vector.h"
#include "allscale/utils/serializer/strings.h"
namespace allscale {
namespace utils {
TEST(Vector, Vector2DLayout) {
using Point = Vector<int, 2>;
Point p;
ASSERT_EQ(&(p[0]), &(p.x));
ASSERT_EQ(&(p[1]), &(p.y));
p[0] = 1;
p[1] = 2;
Point p2 = p;
EXPECT_EQ(1, p.x);
EXPECT_EQ(2, p.y);
EXPECT_EQ(1, p2.x);
EXPECT_EQ(2, p2.y);
}
TEST(Vector, Vector3DLayout) {
using Point = Vector<int, 3>;
Point p;
ASSERT_EQ(&(p[0]), &(p.x));
ASSERT_EQ(&(p[1]), &(p.y));
ASSERT_EQ(&(p[2]), &(p.z));
p[0] = 1;
p[1] = 2;
p[2] = 3;
Point p2 = p;
EXPECT_EQ(1, p.x);
EXPECT_EQ(2, p.y);
EXPECT_EQ(3, p.z);
EXPECT_EQ(1, p2.x);
EXPECT_EQ(2, p2.y);
EXPECT_EQ(3, p2.z);
}
TEST(Vector, Basic2D) {
using Point = Vector<int, 2>;
// -- constructors --
Point p; // just works, no restrictions on the values
(void)p;
Point p0 = 0;
EXPECT_EQ("[0,0]", toString(p0));
Point p1 = 1;
EXPECT_EQ("[1,1]", toString(p1));
Point p2 = { 1,2 };
EXPECT_EQ("[1,2]", toString(p2));
// -- assignment --
p1 = p2;
EXPECT_EQ("[1,2]", toString(p1));
EXPECT_EQ("[1,2]", toString(p2));
// -- equality --
EXPECT_EQ(p1, p2);
EXPECT_NE(p0, p1);
// -- addition --
p1 = p1 + p2;
EXPECT_EQ("[2,4]", toString(p1));
p1 += p1;
EXPECT_EQ("[4,8]", toString(p1));
// -- subtraction --
p1 = p1 - p2;
EXPECT_EQ("[3,6]", toString(p1));
p1 -= p2;
EXPECT_EQ("[2,4]", toString(p1));
// scalar multiplication
p1 = p1 * 2;
EXPECT_EQ("[4,8]", toString(p1));
p1 = 2 * p1;
EXPECT_EQ("[8,16]", toString(p1));
p1 *= 2;
EXPECT_EQ("[16,32]", toString(p1));
// scalar division
p1 = p1 / 2;
EXPECT_EQ("[8,16]", toString(p1));
p1 /= 2;
EXPECT_EQ("[4,8]", toString(p1));
}
TEST(Vector, Basic3D) {
using Point = Vector<int,3>;
// -- constructors --
Point p; // just works, no restrictions on the values
(void)p;
Point p0 = 0;
EXPECT_EQ("[0,0,0]", toString(p0));
Point p1 = 1;
EXPECT_EQ("[1,1,1]", toString(p1));
Point p2 = {1,2,3};
EXPECT_EQ("[1,2,3]", toString(p2));
// -- assignment --
p1 = p2;
EXPECT_EQ("[1,2,3]", toString(p1));
EXPECT_EQ("[1,2,3]", toString(p2));
// -- equality --
EXPECT_EQ(p1,p2);
EXPECT_NE(p0,p1);
// -- addition --
p1 = p1 + p2;
EXPECT_EQ("[2,4,6]", toString(p1));
p1 += p1;
EXPECT_EQ("[4,8,12]", toString(p1));
// -- subtraction --
p1 = p1 - p2;
EXPECT_EQ("[3,6,9]", toString(p1));
p1 -= p2;
EXPECT_EQ("[2,4,6]", toString(p1));
// scalar multiplication
p1 = p1 * 2;
EXPECT_EQ("[4,8,12]", toString(p1));
p1 = 2 * p1;
EXPECT_EQ("[8,16,24]", toString(p1));
p1 *= 2;
EXPECT_EQ("[16,32,48]", toString(p1));
// scalar division
p1 = p1 / 2;
EXPECT_EQ("[8,16,24]", toString(p1));
p1 /= 2;
EXPECT_EQ("[4,8,12]", toString(p1));
// cross product
p1 = {1,2,3};
p2 = {2,3,4};
auto p3 = crossProduct(p1, p2);
EXPECT_EQ("[-1,2,-1]", toString(p3));
Vector<double, 3> temp = { 1,2,3 };
const Vector<double, 3>& temp2 = temp;
auto res = temp2 * 2.0;
EXPECT_EQ("[2,4,6]", toString(res));
}
TEST(Vector, BasicND) {
using Point = Vector<int,5>;
// -- constructors --
Point p; // just works, no restrictions on the values
(void)p;
Point p0 = 0;
EXPECT_EQ("[0,0,0,0,0]", toString(p0));
Point p1 = 1;
EXPECT_EQ("[1,1,1,1,1]", toString(p1));
Point p2 = {1,2,3,4,5};
EXPECT_EQ("[1,2,3,4,5]", toString(p2));
// -- assignment --
p1 = p2;
EXPECT_EQ("[1,2,3,4,5]", toString(p1));
EXPECT_EQ("[1,2,3,4,5]", toString(p2));
// -- equality --
EXPECT_EQ(p1,p2);
EXPECT_NE(p0,p1);
// -- addition --
p1 = p1 + p2;
EXPECT_EQ("[2,4,6,8,10]", toString(p1));
p1 += p1;
EXPECT_EQ("[4,8,12,16,20]", toString(p1));
// -- subtraction --
p1 = p1 - p2;
EXPECT_EQ("[3,6,9,12,15]", toString(p1));
p1 -= p2;
EXPECT_EQ("[2,4,6,8,10]", toString(p1));
// scalar multiplication
p1 = p1 * 2;
EXPECT_EQ("[4,8,12,16,20]", toString(p1));
p1 = 2 * p1;
EXPECT_EQ("[8,16,24,32,40]", toString(p1));
p1 *= 2;
EXPECT_EQ("[16,32,48,64,80]", toString(p1));
// scalar division
p1 = p1 / 2;
EXPECT_EQ("[8,16,24,32,40]", toString(p1));
p1 /= 2;
EXPECT_EQ("[4,8,12,16,20]", toString(p1));
}
TEST(Vector, MathUtilities) {
using Point = Vector<int,3>;
Point p1 = 16;
EXPECT_EQ("768", toString(sumOfSquares(p1)));
Point p2 = 4;
EXPECT_EQ("[64,64,64]", toString(elementwiseProduct(p1,p2)));
EXPECT_EQ("[4,4,4]", toString(elementwiseDivision(p1,p2)));
}
template<typename T>
void testStoreLoad(const T& val) {
auto archive = serialize(val);
EXPECT_EQ(val,deserialize<T>(archive));
}
TEST(Vector, Serializable) {
EXPECT_TRUE((is_serializable<Vector<int,0>>::value));
EXPECT_TRUE((is_serializable<Vector<int,1>>::value));
EXPECT_TRUE((is_serializable<Vector<int,2>>::value));
EXPECT_TRUE((is_serializable<Vector<int,3>>::value));
EXPECT_TRUE((is_serializable<Vector<int,4>>::value));
testStoreLoad(Vector<int,0>());
testStoreLoad(Vector<int,1>(10));
testStoreLoad(Vector<int,2>(10,20));
testStoreLoad(Vector<int,2>(20,10));
testStoreLoad(Vector<int,3>(10,20,30));
testStoreLoad(Vector<int,4>{10,20,30,40});
testStoreLoad(Vector<short,0>());
testStoreLoad(Vector<short,1>(10));
testStoreLoad(Vector<short,2>(10,20));
testStoreLoad(Vector<short,2>(20,10));
testStoreLoad(Vector<short,3>(10,20,30));
testStoreLoad(Vector<short,4>{10,20,30,40});
}
// -- more complex serialization cases --
struct NotSerializable {};
class SerializableButNotDefaultConstructable {
int x;
SerializableButNotDefaultConstructable(int x) : x(x) {}
public:
static SerializableButNotDefaultConstructable get(int x) {
return SerializableButNotDefaultConstructable(x);
}
static SerializableButNotDefaultConstructable load(ArchiveReader& reader) {
return SerializableButNotDefaultConstructable(reader.read<int>());
}
void store(ArchiveWriter& writer) const {
writer.write<int>(x);
}
bool operator==(const SerializableButNotDefaultConstructable& other) const {
return x == other.x;
}
friend std::ostream& operator<<(std::ostream& out, const SerializableButNotDefaultConstructable& obj) {
return out << obj.x;
}
};
TEST(Serializer, Vectors) {
// check that strings are recognized as serializable
EXPECT_TRUE((is_serializable<Vector<int,1>>::value));
EXPECT_TRUE((is_serializable<Vector<float,2>>::value));
EXPECT_TRUE((is_serializable<Vector<bool,3>>::value));
EXPECT_TRUE((is_serializable<Vector<double,4>>::value));
// this should work also for a nested vectors
EXPECT_TRUE((is_serializable<Vector<Vector<int,3>,4>>::value));
// and with other types
EXPECT_TRUE((is_serializable<Vector<std::string,2>>::value));
// but not with non-serializable typse
EXPECT_FALSE((is_serializable<NotSerializable>::value));
EXPECT_FALSE((is_serializable<Vector<NotSerializable,4>>::value));
}
TEST(Serializer,VectorInt) {
// serialize and de-serialize a vector
Vector<int,4> in { 1, 2, 3, 4 };
auto archive = serialize(in);
auto out = deserialize<Vector<int,4>>(archive);
EXPECT_EQ(in,out);
}
TEST(Serializer,VectorNoDefaultConstructor) {
// make sure the test type is realy not default-constructable
EXPECT_FALSE(std::is_default_constructible<SerializableButNotDefaultConstructable>::value);
// but it is serializable
EXPECT_TRUE(is_serializable<SerializableButNotDefaultConstructable>::value);
// and so is the enclosing vector
EXPECT_TRUE((is_serializable<Vector<SerializableButNotDefaultConstructable,2>>::value));
// serialize and de-serialize a string
Vector<SerializableButNotDefaultConstructable,3> in {
SerializableButNotDefaultConstructable::get(1),
SerializableButNotDefaultConstructable::get(2),
SerializableButNotDefaultConstructable::get(3)
};
auto archive = serialize(in);
auto out = deserialize<Vector<SerializableButNotDefaultConstructable,3>>(archive);
EXPECT_EQ(in,out);
}
TEST(Serializer,VectorTriviallySerializable) {
EXPECT_TRUE((is_serializable<Vector<int,2>>::value));
EXPECT_TRUE((is_trivially_serializable<Vector<int,2>>::value));
EXPECT_TRUE((is_serializable<Vector<std::string,2>>::value));
EXPECT_FALSE((is_trivially_serializable<Vector<std::string,2>>::value));
}
} // end namespace utils
} // end namespace allscale