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Fixed memory alignment, which made ESP8266 crash (issue #104)

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This commit is contained in:
Benoit Blanchon
2015-09-01 22:21:50 +02:00
parent 823a172681
commit 5a4d993f7d
7 changed files with 51 additions and 75 deletions
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29
test/StaticJsonBuffer_Basic_Tests.cpp
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@ -13,11 +13,11 @@ using namespace ArduinoJson;
class StaticJsonBuffer_Basic_Tests : public testing::Test {
protected:
StaticJsonBuffer<42> buffer;
StaticJsonBuffer<64> buffer;
};
TEST_F(StaticJsonBuffer_Basic_Tests, CapacityMatchTemplateParameter) {
ASSERT_EQ(42, buffer.capacity());
ASSERT_EQ(64, buffer.capacity());
}
TEST_F(StaticJsonBuffer_Basic_Tests, InitialSizeIsZero) {
@ -26,34 +26,43 @@ TEST_F(StaticJsonBuffer_Basic_Tests, InitialSizeIsZero) {
TEST_F(StaticJsonBuffer_Basic_Tests, GrowsAfterAlloc) {
buffer.alloc(1);
ASSERT_EQ(1, buffer.size());
ASSERT_LE(1, buffer.size());
buffer.alloc(1);
ASSERT_EQ(2, buffer.size());
ASSERT_LE(2, buffer.size());
}
TEST_F(StaticJsonBuffer_Basic_Tests, DoesntGrowWhenFull) {
buffer.alloc(42);
buffer.alloc(64);
buffer.alloc(1);
ASSERT_EQ(42, buffer.size());
ASSERT_EQ(64, buffer.size());
}
TEST_F(StaticJsonBuffer_Basic_Tests, DoesntGrowWhenTooSmall) {
buffer.alloc(43);
buffer.alloc(65);
ASSERT_EQ(0, buffer.size());
}
TEST_F(StaticJsonBuffer_Basic_Tests, ReturnsNonNull) {
void *p = buffer.alloc(42);
void *p = buffer.alloc(64);
ASSERT_NE(static_cast<void *>(0), p);
}
TEST_F(StaticJsonBuffer_Basic_Tests, ReturnsNullWhenFull) {
buffer.alloc(42);
buffer.alloc(64);
void *p = buffer.alloc(1);
ASSERT_EQ(NULL, p);
}
TEST_F(StaticJsonBuffer_Basic_Tests, ReturnsNullWhenTooSmall) {
void *p = buffer.alloc(43);
void *p = buffer.alloc(65);
ASSERT_EQ(NULL, p);
}
TEST_F(StaticJsonBuffer_Basic_Tests, Alignment) {
size_t mask = sizeof(void *) - 1;
for (size_t size = 1; size <= sizeof(void *); size++) {
size_t addr = reinterpret_cast<size_t>(buffer.alloc(1));
ASSERT_EQ(0, addr & mask);
}
}