EMualtor im

tests/test_emulator_probe.py

@@ -0,0 +1,56 @@
+import unittest
+
+from h8536.emulator.probe import DEFAULT_WATCH_PCS, parse_watch_pc, run_probe
+
+
+def rom_with_reset(*, reset: int = 0x1000, size: int = 0x1100) -> bytearray:
+    rom = bytearray([0xFF] * size)
+    rom[0:2] = reset.to_bytes(2, "big")
+    return rom
+
+
+class EmulatorProbeTest(unittest.TestCase):
+    def test_parse_watch_pc_accepts_h8_hex_forms(self):
+        self.assertEqual(parse_watch_pc("C08B"), 0xC08B)
+        self.assertEqual(parse_watch_pc("0xC08B"), 0xC08B)
+        self.assertEqual(parse_watch_pc("H'C08B"), 0xC08B)
+
+    def test_default_watch_pcs_include_bit_bang_transfer_path(self):
+        self.assertIn(0xC08B, DEFAULT_WATCH_PCS)
+        self.assertIn(0xC0DB, DEFAULT_WATCH_PCS)
+        self.assertIn(0xC121, DEFAULT_WATCH_PCS)
+        self.assertIn(0xBFE0, DEFAULT_WATCH_PCS)
+        self.assertIn(0xBFFE, DEFAULT_WATCH_PCS)
+        self.assertIn(0xC059, DEFAULT_WATCH_PCS)
+
+    def test_watch_snapshot_includes_bsr_return_address_on_stack(self):
+        rom = rom_with_reset()
+        rom[0x1000:0x1003] = b"\x5F\xFE\x80"  # MOV:I.W #H'FE80, R7
+        rom[0x1003:0x1005] = b"\x0E\x03"  # BSR H'1008, return H'1005
+        rom[0x1005:0x1008] = b"\x59\x12\x34"  # MOV:I.W #H'1234, R1
+        rom[0x1008] = 0x19  # RTS
+
+        report = run_probe(
+            bytes(rom),
+            max_steps=4,
+            interval_steps=512,
+            stop_on_tx=False,
+            p9_log_limit=8,
+            watch_pcs=(0x1008,),
+            watch_snapshot_limit=4,
+            watch_pc_limit=2,
+            watch_min_interval=0,
+        )
+
+        self.assertEqual(len(report.watch_snapshots), 1)
+        snapshot = report.watch_snapshots[0]
+        self.assertEqual(snapshot.pc, 0x1008)
+        self.assertEqual(snapshot.sp, 0xFE7E)
+        self.assertIn((0xFE7E, 0x1005), snapshot.stack_words)
+        self.assertIn((0x1005, 0x1003), snapshot.callers)
+        self.assertIn("H'1005<-H'1003", snapshot.line())
+        self.assertTrue(any("recent_watch_snapshots:" == line for line in report.lines()))
+
+
+if __name__ == "__main__":
+    unittest.main()