1 files changed, 52 insertions, 0 deletions
diff --git a/tests/arch/instruction.py b/tests/arch/instruction.py
new file mode 100644
index 0000000..da4d8c1
--- /dev/null
+++ b/tests/arch/instruction.py
@@ -0,0 +1,52 @@
+
+import pychrysalide
+from chrysacase import ChrysalideTestCase
+from pychrysalide.arch import ArchInstruction
+
+
+class TestProcessor(ChrysalideTestCase):
+    """TestCase for arch.ArchProcessor."""
+
+
+    def testAbstractClass(self):
+        """Forbid instruction class instance."""
+
+        with self.assertRaisesRegex(RuntimeError, 'pychrysalide.arch.ArchInstruction is an abstract class'):
+            ins = ArchInstruction()
+
+
+    def testInstructionBasicImplementation(self):
+        """Implement basic custom instructions."""
+
+
+        class TodoInstruction(ArchInstruction):
+
+            def __init__(self):
+                super().__init__(0x123)
+
+
+        ins = TodoInstruction()
+
+        with self.assertRaisesRegex(NotImplementedError, 'unexpected NULL value as encoding'):
+            print(ins.encoding)
+
+        with self.assertRaisesRegex(NotImplementedError, 'unexpected NULL value as keyword'):
+            print(ins.keyword)
+
+
+        class CustomInstruction(ArchInstruction):
+
+            def __init__(self):
+                super().__init__(0x123)
+
+            def _get_encoding(self):
+                return 'custom'
+
+            def _get_keyword(self):
+                return 'kw'
+
+
+        ins = CustomInstruction()
+
+        self.assertEqual('custom', ins.encoding)
+        self.assertEqual('kw', ins.keyword)