55 lines
1.2 KiB
C++
55 lines
1.2 KiB
C++
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// ArduinoJson - arduinojson.org
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// Copyright Benoit Blanchon 2014-2018
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// MIT License
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#include <ArduinoJson/Memory/StaticJsonBuffer.hpp>
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#include <catch.hpp>
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using namespace ArduinoJson::Internals;
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static bool isAligned(void *ptr) {
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const size_t mask = sizeof(void *) - 1;
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size_t addr = reinterpret_cast<size_t>(ptr);
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return (addr & mask) == 0;
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}
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TEST_CASE("StaticJsonBuffer::alloc()") {
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StaticJsonBuffer<64> buffer;
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SECTION("Returns different addresses") {
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void *p1 = buffer.alloc(1);
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void *p2 = buffer.alloc(1);
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REQUIRE(p1 != p2);
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}
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SECTION("Returns non-NULL when using full capacity") {
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void *p = buffer.alloc(64);
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REQUIRE(0 != p);
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}
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SECTION("Returns NULL when full") {
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buffer.alloc(64);
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void *p = buffer.alloc(1);
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REQUIRE(0 == p);
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}
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SECTION("Returns NULL when buffer is too small") {
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void *p = buffer.alloc(65);
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REQUIRE(0 == p);
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}
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SECTION("Returns aligned pointers") {
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for (size_t size = 1; size <= sizeof(void *); size++) {
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void *p = buffer.alloc(1);
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REQUIRE(isAligned(p));
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}
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}
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SECTION("Returns same address after clear()") {
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void *p1 = buffer.alloc(1);
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buffer.clear();
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void *p2 = buffer.alloc(1);
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REQUIRE(p1 == p2);
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}
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}
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