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-rw-r--r--qtmips_machine/tests/testmemory.cpp61
1 files changed, 61 insertions, 0 deletions
diff --git a/qtmips_machine/tests/testmemory.cpp b/qtmips_machine/tests/testmemory.cpp
new file mode 100644
index 0000000..991e1f1
--- /dev/null
+++ b/qtmips_machine/tests/testmemory.cpp
@@ -0,0 +1,61 @@
+#include "tst_machine.h"
+#include "memory.h"
+
+void MachineTests::memory_data() {
+ QTest::addColumn<std::uint32_t>("address");
+
+ QTest::newRow("memory begin") << (std::uint32_t)0x00;
+ QTest::newRow("memory end") << (std::uint32_t)0xFFFFFFFC;
+ QTest::newRow("memory midle start") << (std::uint32_t)0xFFFF00;
+ QTest::newRow("memory midle end") << (std::uint32_t)0xFFFFFF;
+}
+
+void MachineTests::memory() {
+ Memory m;
+
+ QFETCH(std::uint32_t, address);
+
+ // Uninitialize memory should read as zero
+ QCOMPARE(m.read_byte(address), (std::uint8_t)0);
+ QCOMPARE(m.read_hword(address), (std::uint16_t)0);
+ QCOMPARE(m.read_word(address), (std::uint32_t)0);
+ // Just a byte
+ m.write_byte(address, 0x42);
+ QCOMPARE(m.read_byte(address), (std::uint8_t)0x42);
+ // Half word
+ m.write_hword(address, 0x4243);
+ QCOMPARE(m.read_hword(address), (std::uint16_t)0x4243);
+ // Word
+ m.write_word(address, 0x42434445);
+ QCOMPARE(m.read_word(address), (std::uint32_t)0x42434445);
+}
+
+void MachineTests::memory_section_data() {
+ QTest::addColumn<std::uint32_t>("address");
+
+ QTest::newRow("memory begin") << (std::uint32_t)0x00;
+ QTest::newRow("memory end") << (std::uint32_t)0xFFFFFFFF;
+ QTest::newRow("memory midle start") << (std::uint32_t)0xFFFF00;
+ QTest::newRow("memory midle end") << (std::uint32_t)0xFFFFFF;
+}
+
+void MachineTests::memory_section() {
+ Memory m;
+
+ QFETCH(std::uint32_t, address);
+
+ // First section shouldn't exists
+ QCOMPARE(m.get_section(address, false), (MemorySection*)nullptr);
+ // Create section
+ MemorySection *s = m.get_section(address, true);
+ QVERIFY(s != nullptr);
+
+ // Write some data to memory
+ m.write_byte(address, 0x42);
+ // Read it trough section (mask bits outside of the memory section)
+ QCOMPARE(s->read_byte(address & ((1 << MEMORY_SECTION_BITS) - 1)), (std::uint8_t)0x42);
+ // Write some other data trough section
+ s->write_byte(address & ((1 << MEMORY_SECTION_BITS) - 1), 0x66);
+ // Read trough memory
+ QCOMPARE(m.read_byte(address), (std::uint8_t)0x66);
+}