Rework config_test to use py.test

Author: theotherjimmy

.travis.yml

@@ -19,11 +19,10 @@ script:
   - |
     find  -name "*.s" | tee BUILD/badasm | sed -e "s/^/Bad Assembler file name found: /" && [ ! -s BUILD/badasm ]
   - make -C events/equeue test clean
-  - PYTHONPATH=. coverage run tools/test/config_test/config_test.py
+  - PYTHONPATH=. coverage run -m pytest tools/test/config_test/config_test.py tools/test/toolchains/api.py
   - PYTHONPATH=. coverage run tools/test/build_api/build_api_test.py
   - PYTHONPATH=. coverage run tools/test/targets/target_test.py
   - coverage run tools/test/pylint.py
-  - coverage run -m pytest tools/test/toolchains/api.py
   - coverage run tools/test/memap/memap_test.py
   - coverage run tools/project.py -S
   - coverage run tools/build_travis.py

tools/test/config_test/test11/lib1/lib2/mbed_lib.json renamed to tools/test/config_test/app_override_libs/lib1/lib2/mbed_lib.json

@@ -0,0 +1,10 @@
+
+ {
+   "test_target": {
+        "lib1.p1": "v_p1_lib1_app",
+        "lib1.p2": "v_p2_lib1",
+        "lib1.p3": "v_p3_lib1",
+        "lib2.p1": "v_p1_lib2_app",
+        "lib2.p2": "v_p2_lib2"
+    }
+}

tools/test/config_test/test12/lib1/mbed_lib.json renamed to tools/test/config_test/app_override_libs/lib1/mbed_lib.json

@@ -0,0 +1,5 @@
+ {
+    "K64F": {
+        "exception_msg": "not found"
+    }
+}

tools/test/config_test/test12/mbed_app.json renamed to tools/test/config_test/app_override_libs/mbed_app.json

@@ -1,13 +1,6 @@
-# This is similar to test1, but this time B2 also inherits from B1, which allows it to override its config data.
-# B2 also overrides base1_2, like D1.
-# The order of inheritace in F is also reversed ([D1, B2] instead of [B2, D1])
-# Since the last override of base1_2 in inheritance order is in B2, base1_2 must now
-# have the value that was overriden in B2, not in D1.
-# This test also shows that multiple inheritance works for a simple diamond shaped inheritance pattern
 
-expected_results = {
+ {
     "f": {
-        "desc": "test multiple target inheritance (diamond shape)",
         "target.base1_1": "v_base1_1_f",
         "target.base1_2": "v_base1_2_b2",
         "target.base1_3": "v_base1_3_b1",
@@ -19,7 +12,6 @@
         "target.f1_2": "v_f1_2_f"
     },
     "b2": {
-        "desc": "another single inheritance test",
         "target.base1_1": "v_base1_1_b1",
         "target.base1_2": "v_base1_2_b2",
         "target.base1_3": "v_base1_3_b1",