allocatorstest.cpp File Reference

#include "unittest.h"
#include "rapidjson/allocators.h"

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Functions
template<typename Allocator >
void	TestAllocator (Allocator &a)
	TEST (Allocator, CrtAllocator)
	TEST (Allocator, MemoryPoolAllocator)
	TEST (Allocator, Alignment)
	TEST (Allocator, Issue399)

Function Documentation

TEST() [1/4]

TEST	(	Allocator	,
		Alignment	)

Definition at line 65 of file allocatorstest.cpp.

                           {
    if (sizeof(size_t) >= 8) {
        EXPECT_EQ(RAPIDJSON_UINT64_C2(0x00000000, 0x00000000), RAPIDJSON_ALIGN(0));
        for (uint64_t i = 1; i < 8; i++) {
            EXPECT_EQ(RAPIDJSON_UINT64_C2(0x00000000, 0x00000008), RAPIDJSON_ALIGN(i));
            EXPECT_EQ(RAPIDJSON_UINT64_C2(0x00000000, 0x00000010), RAPIDJSON_ALIGN(RAPIDJSON_UINT64_C2(0x00000000, 0x00000008) + i));
            EXPECT_EQ(RAPIDJSON_UINT64_C2(0x00000001, 0x00000000), RAPIDJSON_ALIGN(RAPIDJSON_UINT64_C2(0x00000000, 0xFFFFFFF8) + i));
            EXPECT_EQ(RAPIDJSON_UINT64_C2(0xFFFFFFFF, 0xFFFFFFF8), RAPIDJSON_ALIGN(RAPIDJSON_UINT64_C2(0xFFFFFFFF, 0xFFFFFFF0) + i));
        }
    }
 
    EXPECT_EQ(0u, RAPIDJSON_ALIGN(0u));
    for (uint32_t i = 1; i < 8; i++) {
        EXPECT_EQ(8u, RAPIDJSON_ALIGN(i));
        EXPECT_EQ(0xFFFFFFF8u, RAPIDJSON_ALIGN(0xFFFFFFF0u + i));
    }
}

TEST() [2/4]

TEST	(	Allocator	,
		CrtAllocator	)

Definition at line 50 of file allocatorstest.cpp.

                              {
    CrtAllocator a;
    TestAllocator(a);
}

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TEST() [3/4]

TEST	(	Allocator	,
		Issue399	)

Definition at line 83 of file allocatorstest.cpp.

                          {
    MemoryPoolAllocator<> a;
    void* p = a.Malloc(100);
    void* q = a.Realloc(p, 100, 200);
    EXPECT_EQ(p, q);
 
    // exhuasive testing
    for (size_t j = 1; j < 32; j++) {
        a.Clear();
        a.Malloc(j); // some unaligned size
        p = a.Malloc(1);
        for (size_t i = 1; i < 1024; i++) {
            q = a.Realloc(p, i, i + 1);
            EXPECT_EQ(p, q);
            p = q;
        }
    }
}

TEST() [4/4]

TEST	(	Allocator	,
		MemoryPoolAllocator	)

Definition at line 55 of file allocatorstest.cpp.

                                     {
    MemoryPoolAllocator<> a;
    TestAllocator(a);
 
    for (size_t i = 1; i < 1000; i++) {
        EXPECT_TRUE(a.Malloc(i) != 0);
        EXPECT_LE(a.Size(), a.Capacity());
    }
}

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TestAllocator()

template<typename Allocator >

void TestAllocator

(

Allocator &

a

)

Definition at line 22 of file allocatorstest.cpp.

                                 {
    EXPECT_TRUE(a.Malloc(0) == 0);
 
    uint8_t* p = static_cast<uint8_t*>(a.Malloc(100));
    EXPECT_TRUE(p != 0);
    for (size_t i = 0; i < 100; i++)
        p[i] = static_cast<uint8_t>(i);
 
    // Expand
    uint8_t* q = static_cast<uint8_t*>(a.Realloc(p, 100, 200));
    EXPECT_TRUE(q != 0);
    for (size_t i = 0; i < 100; i++)
        EXPECT_EQ(i, q[i]);
    for (size_t i = 100; i < 200; i++)
        q[i] = static_cast<uint8_t>(i);
 
    // Shrink
    uint8_t *r = static_cast<uint8_t*>(a.Realloc(q, 200, 150));
    EXPECT_TRUE(r != 0);
    for (size_t i = 0; i < 150; i++)
        EXPECT_EQ(i, r[i]);
 
    Allocator::Free(r);
 
    // Realloc to zero size
    EXPECT_TRUE(a.Realloc(a.Malloc(1), 1, 0) == 0);
}

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