Add test for untrimmed MCUs

Add a test that verifies that programming untrimmed MCUs results in
an error.

tests/stc8f2k08s2-untrimmed.yml

@@ -0,0 +1,5 @@
+name: STC8F2K08S2 untrimmed programming test
+protocol: stc8
+code_data: [49, 50, 51, 52, 53, 54, 55, 56, 57]
+responses:
+  - [0x50, 0xFF, 0xFF, 0xFF, 0xFF, 0x8F, 0x00, 0x04, 0xFF, 0xFF, 0x8B, 0xFD, 0xFF, 0x27, 0x38, 0xF5, 0x73, 0x73, 0x55, 0x00, 0xF6, 0x41, 0x0A, 0x88, 0x86, 0x6F, 0x8F, 0x08, 0x20, 0x20, 0x20, 0x01, 0x00, 0x00, 0x20, 0x05, 0x3C, 0x18, 0x05, 0x22, 0x32, 0xFF]

tests/test_program.py

@@ -27,6 +27,7 @@ from unittest.mock import patch
 import yaml
 import stcgal.frontend
 import stcgal.protocols
+from stcgal.protocols import StcProtocolException
 
 def convert_to_bytes(list_of_lists):
     """Convert lists of integer lists to list of byte lists"""
@@ -128,6 +129,24 @@ class ProgramTests(unittest.TestCase):
         """Test a programming cycle with STC15 protocol, L1 series"""
         self._program_yml("./tests/stc15l104w.yml", serial_mock, read_mock)
 
+    @patch("stcgal.protocols.StcBaseProtocol.read_packet")
+    @patch("stcgal.protocols.Stc89Protocol.write_packet")
+    @patch("stcgal.protocols.serial.Serial", autospec=True)
+    @patch("stcgal.protocols.time.sleep")
+    @patch("sys.stdout")
+    def test_program_stc8_untrimmed(self, out, sleep_mock, serial_mock, write_mock, read_mock):
+        """Test error with untrimmed MCU"""
+        with open("./tests/stc8f2k08s2-untrimmed.yml") as test_file:
+            test_data = yaml.load(test_file.read())
+            opts = get_default_opts()
+            opts.trim = 0.0
+            opts.protocol = test_data["protocol"]
+            opts.code_image.read.return_value = bytes(test_data["code_data"])
+            serial_mock.return_value.inWaiting.return_value = 1
+            read_mock.side_effect = convert_to_bytes(test_data["responses"])
+            gal = stcgal.frontend.StcGal(opts)
+            self.assertEqual(gal.run(), 1)
+
     def test_program_stc15w4_usb(self):
         """Test a programming cycle with STC15W4 USB protocol"""
         self.skipTest("USB not supported yet, trace missing")