Test resident allocator.

CMakeLists.txt

@@ -19,7 +19,7 @@ add_library(pwmpi src/dma/cb.h src/bcm/base.h src/dma/ti.h src/mem/bmap.h src/dm
 
 add_executable(pwmpi-demo src/main.cpp src/misc.h)
 
-add_executable(pwmpi-test test/utmain.cpp test/test_allocation_table.cpp)
+add_executable(pwmpi-test test/utmain.cpp test/test_allocation_table.cpp test/test_resident_allocator.cpp)
 
 target_link_libraries(pwmpi-demo pwmpi)
 target_link_libraries(pwmpi-test pwmpi)

test/test_allocation_table.cpp

@@ -5,7 +5,6 @@
 #include <catch2/catch.hpp>
 #include <mem/allocation_table.h>
 #include <array>
-#include <misc.h>
 
 namespace {
  inline mem::chunk mkchunk(std::uintptr_t ofs, std::size_t sz) {

test/test_resident_allocator.cpp

+//
+// Created by Pietro Saccardi on 04/09/2019.
+//
+
+
+#include <catch2/catch.hpp>
+#include <mem/resident_allocator.h>
+
+TEST_CASE("Allocate simple", "[resident_allocator]") {
+ mem::resident_memory_resource pmr;
+ static constexpr std::size_t sz = 100;
+ void * const addr = pmr.allocate(sz);
+ REQUIRE(pmr.pool_size() >= sz);
+ if (pmr.pool_size() > sz) {
+ REQUIRE(pmr.num_fragments() == 1);
+ REQUIRE(pmr.largest_fragment_size() == pmr.pool_size() - sz);
+ } else {
+ REQUIRE(pmr.num_fragments() == 0);
+ REQUIRE(pmr.largest_fragment_size() == 0);
+ }
+ REQUIRE(pmr.used_memory() == sz);
+ pmr.deallocate(addr, sz);
+ REQUIRE(pmr.num_fragments() == 1);
+ REQUIRE(pmr.largest_fragment_size() == pmr.pool_size());
+ REQUIRE(pmr.pool_size() >= sz);
+ REQUIRE(pmr.available_memory() == pmr.pool_size());
+ REQUIRE(pmr.used_memory() == 0);
+ const auto saved_spc = pmr.try_reduce_pool_size();
+ REQUIRE(saved_spc >= sz);
+ REQUIRE(pmr.num_fragments() == 0);
+ REQUIRE(pmr.pool_size() == 0);
+ REQUIRE(pmr.largest_fragment_size() == 0);
+ REQUIRE(pmr.available_memory() == 0);
+}
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