revert tests from using 1-based-indexing

Author: machow

tests/test_test_wiki.py

@@ -193,10 +193,10 @@ def test_pass_simple(self):
 L2 = [i*2 for i in range(0,10) if i>2]
 ''',
                 "DC_SCT": '''
-list_comp = Ex().check_list_comp(1, missing_msg="Did you include a list comprehension?")
+list_comp = Ex().check_list_comp(0, missing_msg="Did you include a list comprehension?")
 list_comp.check_body().test_student_typed('i\*2')
 list_comp.check_iter().has_equal_value()
-list_comp.check_ifs(1).multi([has_equal_value(context_vals=[i]) for i in range(0,10)])
+list_comp.check_ifs(0).multi([has_equal_value(context_vals=[i]) for i in range(0,10)])
 '''
                 }
         self.data["DC_CODE"] = "L2 = [i*2 for i in range(10) if i>2]"
@@ -207,10 +207,10 @@ def test_pass_complex1(self):
         self.data = {
                 "DC_SOLUTION": """L3 = [i*2 if i> 5 else 0 for i in range(0,10)]""",
                 "DC_SCT": """
-(Ex().check_list_comp(1)                            # first comptehension
+(Ex().check_list_comp(0)                            # first comptehension
         .check_body()                               # comp's body
         .set_context(i=6)
-                .check_if_exp(1)                    # body's inline if
+                .check_if_exp(0)                    # body's inline if
                 .has_equal_value()                  
         )
 """
@@ -223,10 +223,10 @@ def test_fail_complex1(self):
         self.data = {
                 "DC_SOLUTION": """L3 = [i*2 if i> 5 else 0 for i in range(0,10)]""",
                 "DC_SCT": """
-(Ex().check_list_comp(1)                            # first comptehension
+(Ex().check_list_comp(0)                            # first comptehension
         .check_body()                               # comp's body
         .set_context(i=6)
-                .check_if_exp(1)                    # body's inline if
+                .check_if_exp(0)                    # body's inline if
                 .has_equal_value()                  
         )
 """
@@ -239,7 +239,7 @@ def test_pass_complex2(self):
         self.data = {
                 "DC_SOLUTION": """L3 = [i*2 if i> 5 else 0 for i in range(0,10)]""",
                 "DC_SCT": """
-(Ex().check_list_comp(1)                            # first comptehension
+(Ex().check_list_comp(0)                            # first comptehension
         .check_body().set_context(i=6).has_equal_value()                  
         )
 """