Renaming test 04_skip to 04_build_skip and amending it to test CIBW_BUILD as well

test/04_build_skip/environment.json

@@ -0,0 +1,4 @@
+{
+    "CIBW_BUILD": "cp3?-*",
+    "CIBW_SKIP": "cp33-*"
+}

test/04_build_skip/setup.py

@@ -2,9 +2,9 @@ from setuptools import setup, Extension
 import sys
 
 if sys.argv[-1] != '--name':
-    # explode if run on Python 2.6 or Python 3.3 (these should be skipped)
-    if sys.version_info[0:2] == (2, 6):
-        raise Exception('Python 2.6 should be skipped')
+    # explode if run on Python 2.7 or Python 3.3 (these should be skipped)
+    if sys.version_info[0:2] == (2, 7):
+        raise Exception('Python 2.7 should not be built')
     if sys.version_info[0:2] == (3, 3):
         raise Exception('Python 3.3 should be skipped')
 

test/04_skip/environment.json

@@ -1,3 +0,0 @@
-{
-    "CIBW_SKIP": "cp26-* cp33-*"
-}