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);
+}