ctrl_test_runner: add tests for 3-digit MNC

Expand MCC-MNC test cases: show that the CTRL interface currently does not
preserve the third digit of the MNC if it is zero. These will be fixed by
I8e722103344186fde118b26d8353db95a4581daa

Change-Id: I5b097dbb6329f284e3b4914a744d5c3ad628f715
diff --git a/tests/ctrl_test_runner.py b/tests/ctrl_test_runner.py
index 4f5df39..41765ff 100755
--- a/tests/ctrl_test_runner.py
+++ b/tests/ctrl_test_runner.py
@@ -392,6 +392,12 @@
         self.assertEquals(r['var'], 'mnc')
         self.assertEquals(r['value'], '9')
 
+        r = self.do_set('mnc', '009')
+        r = self.do_get('mnc')
+        self.assertEquals(r['mtype'], 'GET_REPLY')
+        self.assertEquals(r['var'], 'mnc')
+        self.assertEquals(r['value'], '9') # FAIL: expecting '009'
+
 
     def testMccMncApply(self):
         # Test some invalid input
@@ -451,6 +457,38 @@
         self.assertEquals(r['var'], 'mcc')
         self.assertEquals(r['value'], '202')
 
+        # Test MNC with 3 digits
+        r = self.do_set('mcc-mnc-apply', '2,003')
+        self.assertEquals(r['mtype'], 'SET_REPLY')
+        self.assertEquals(r['var'], 'mcc-mnc-apply')
+        self.assertEquals(r['value'], 'Tried to drop the BTS')
+
+        r = self.do_get('mnc')
+        self.assertEquals(r['mtype'], 'GET_REPLY')
+        self.assertEquals(r['var'], 'mnc')
+        self.assertEquals(r['value'], '3') # FAIL: expecting '003'
+
+        r = self.do_get('mcc')
+        self.assertEquals(r['mtype'], 'GET_REPLY')
+        self.assertEquals(r['var'], 'mcc')
+        self.assertEquals(r['value'], '2')
+
+        # Set same MNC with 3 digits
+        r = self.do_set('mcc-mnc-apply', '2,003')
+        self.assertEquals(r['mtype'], 'SET_REPLY')
+        self.assertEquals(r['var'], 'mcc-mnc-apply')
+        self.assertEquals(r['value'], 'Nothing changed')
+
+        r = self.do_get('mnc')
+        self.assertEquals(r['mtype'], 'GET_REPLY')
+        self.assertEquals(r['var'], 'mnc')
+        self.assertEquals(r['value'], '3') # FAIL: expecting '003'
+
+        r = self.do_get('mcc')
+        self.assertEquals(r['mtype'], 'GET_REPLY')
+        self.assertEquals(r['var'], 'mcc')
+        self.assertEquals(r['value'], '2')
+
 class TestCtrlNAT(TestCtrlBase):
 
     def ctrl_command(self):