diff --git a/test/Makefile b/test/Makefile
index f948cb03..e5111541 100644
--- a/test/Makefile
+++ b/test/Makefile
@@ -53,8 +53,8 @@ check-3.3: check-bytecode
 
 #: Run working tests from Python 3.4
 check-3.4: check-bytecode check-3.4-ok check-2.7-ok
-	$(PYTHON) test_pythonlib.py --bytecode-3.4 --weak-verify $(COMPILE)
 	$(PYTHON) test_pythonlib.py --bytecode-3.4-run --verify-run
+	$(PYTHON) test_pythonlib.py --bytecode-3.4 --weak-verify $(COMPILE)
 
 #: Run working tests from Python 3.5
 check-3.5: check-bytecode
diff --git a/test/bytecode_3.3/10_mixed_boolean.pyc b/test/bytecode_3.3/10_mixed_boolean.pyc
deleted file mode 100644
index ecd44155..00000000
Binary files a/test/bytecode_3.3/10_mixed_boolean.pyc and /dev/null differ
diff --git a/test/bytecode_3.3_run/10_mixed_boolean.pyc b/test/bytecode_3.3_run/10_mixed_boolean.pyc
new file mode 100644
index 00000000..ba4fdeea
Binary files /dev/null and b/test/bytecode_3.3_run/10_mixed_boolean.pyc differ
diff --git a/test/bytecode_3.4/10_mixed_boolean.pyc b/test/bytecode_3.4/10_mixed_boolean.pyc
deleted file mode 100644
index ca6b6d6b..00000000
Binary files a/test/bytecode_3.4/10_mixed_boolean.pyc and /dev/null differ
diff --git a/test/bytecode_3.4_run/10_mixed_boolean.pyc b/test/bytecode_3.4_run/10_mixed_boolean.pyc
new file mode 100644
index 00000000..0bf0fbfd
Binary files /dev/null and b/test/bytecode_3.4_run/10_mixed_boolean.pyc differ
diff --git a/test/bytecode_3.5/10_mixed_boolean.pyc b/test/bytecode_3.5/10_mixed_boolean.pyc
deleted file mode 100644
index d8be2198..00000000
Binary files a/test/bytecode_3.5/10_mixed_boolean.pyc and /dev/null differ
diff --git a/test/bytecode_3.5_run/10_mixed_boolean.pyc b/test/bytecode_3.5_run/10_mixed_boolean.pyc
new file mode 100644
index 00000000..76f64298
Binary files /dev/null and b/test/bytecode_3.5_run/10_mixed_boolean.pyc differ
diff --git a/test/simple_source/bug36/00_if_elif.py b/test/simple_source/bug36/00_if_elif.py
index 0867a01f..747ec4bc 100644
--- a/test/simple_source/bug36/00_if_elif.py
+++ b/test/simple_source/bug36/00_if_elif.py
@@ -1,3 +1,4 @@
+# Self-checking test.
 # Python 3 bug in not detecting the end bounds of if elif.
 def testit(b):
     if b == 1:
diff --git a/test/simple_source/bug36/01_fstring.py b/test/simple_source/bug36/01_fstring.py
index 26bc3904..c03aaa79 100644
--- a/test/simple_source/bug36/01_fstring.py
+++ b/test/simple_source/bug36/01_fstring.py
@@ -1,4 +1,5 @@
-# Self-checking 3.6+ string interpolation tests
+# Self-checking test.
+# String interpolation tests
 
 var1 = 'x'
 var2 = 'y'
diff --git a/test/simple_source/looping/10_for.py b/test/simple_source/looping/10_for.py
index 3a37c4cf..5de22cab 100644
--- a/test/simple_source/looping/10_for.py
+++ b/test/simple_source/looping/10_for.py
@@ -1,6 +1,10 @@
+# Self-checking test.
 # Tests:
-#  forstmt ::= SETUP_LOOP expr _for store
-#              for_block POP_BLOCK COME_FROM
+#  for ::= SETUP_LOOP expr for_iter store
+#          for_block POP_BLOCK COME_FROM
+# In 3.8+
+#  for ::= expr for_iter store
+#          for_block POP_BLOCK COME_FROM
 
 c = 0
 for a in [1]:
diff --git a/test/simple_source/operation_logic/10_mixed_boolean.py b/test/simple_source/operation_logic/10_mixed_boolean.py
index d0851a63..aafd2c80 100644
--- a/test/simple_source/operation_logic/10_mixed_boolean.py
+++ b/test/simple_source/operation_logic/10_mixed_boolean.py
@@ -1,12 +1,24 @@
+# Self-checking test.
 b = True
+assert b, 'b = True'
 c = False
+assert not c, 'c = False'
 d = True
 a = b and c or d
+assert a, 'b and c or d'
 a = (b or c) and d
+assert a, '(b or c) and d'
 a = b or c or d
+assert  a, 'b or c or d'
 a = b and c and d
+assert not a, 'b and c and d'
 a = b or c and d
+assert a
 a = b and (c or d)
+assert a
 a = b and c or d
+assert a
 a = (b or c and d) and b
+assert a
 a = (b or c and d or a) and b
+assert a