Fix relative imports in HUTN tests.

interface/HUTN/test/constructor_compilation_action_language/test_compile.py

@@ -1,7 +1,7 @@
 import unittest
-import util
+import interface.HUTN.test.util as util
 
-from hutn_compiler.compiler import main
+from interface.HUTN.hutn_compiler.compiler import main
 import json
 
 def compile_file(obj, filename):

interface/HUTN/test/grammar_action_language/test_invalids.py

@@ -1,7 +1,7 @@
 import unittest
-import util
+import interface.HUTN.test.util as util
 
-from hutn_compiler.compiler import main
+from interface.HUTN.hutn_compiler.compiler import main
 
 def parse_file(filename):
     try:

interface/HUTN/test/grammar_action_language/test_valids.py

@@ -1,7 +1,7 @@
 import unittest
-import util
+import interface.HUTN.test.util as util
 
-from hutn_compiler.compiler import main
+from interface.HUTN.hutn_compiler.compiler import main
 
 def parse_file(filename):
     main(util.get_code_path(filename), "grammars/actionlanguage.g", "N", [])

interface/HUTN/test/modelling_language/test_compile.py

@@ -1,7 +1,7 @@
 import unittest
-import util
+import interface.HUTN.test.util as util
 
-from hutn_compiler.compiler import main
+from interface.HUTN.hutn_compiler.compiler import main
 import json
 
 def compile_file(obj, filename):