README: use regex normalizing to make doctest more readable

https://pypi.org/project/zope.testing/ features "renormalizing" that
this test was already using to make this test independent from actual
paths that can be different but use some paths that looks always the
same (like /sample_buildout/).
Also use this in our patches for shared support so that the test is a
bit more readable and also so that we can assert the actual hash being
used.

slapos/recipe/cmmi/README.rst

@@ -1044,13 +1044,13 @@ process as the recipe tried.
     ...   FOO=bar
     ... """ % (shared_dir, src))
     >>> print(system(buildout)) #doctest:+ELLIPSIS
-    package: shared directory  .../slapos.recipe.cmmi/slapos/recipe/cmmi/shared/package/... set for package
+    package: shared directory /shared/package/FIRST_SHARED_PACKAGE_HASH set for package
     Uninstalling package.
     Installing package.
-    package: Checking whether package is installed at shared path: .../slapos.recipe.cmmi/slapos/recipe/cmmi/shared/package/...
+    package: Checking whether package is installed at shared path: /shared/package/FIRST_SHARED_PACKAGE_HASH
     package: [ENV] FOO = bar
-    package: Command './configure --prefix=".../slapos.recipe.cmmi/slapos/recipe/cmmi/shared/package/..."' returned non-zero exit status 127
-    package: Compilation error. The package is left as is at .../slapos.recipe.cmmi/slapos/recipe/cmmi/shared/package/...__compile__ where you can inspect what went wrong.
+    package: Command './configure --prefix="/shared/package/FIRST_SHARED_PACKAGE_HASH"' returned non-zero exit status 127
+    package: Compilation error. The package is left as is at /shared/package/FIRST_SHARED_PACKAGE_HASH__compile__ where you can inspect what went wrong.
     A shell script slapos.recipe.build.env.sh has been generated. You can source it in your shell to reproduce build environment.
     /bin/sh: 1: ./configure: not found
     While:
@@ -1064,11 +1064,12 @@ process as the recipe tried.
 If shared-parts is set and shared is True, package will be installed in shared_part/package/a hash of the recipe's configuration options
     >>> _ = system('mv %s/package-0.0.0.tar.gz.bak  %s/package-0.0.0.tar.gz' % (src, src))
     >>> print(system(buildout)) #doctest:+ELLIPSIS
-    package: shared directory  .../slapos.recipe.cmmi/slapos/recipe/cmmi/shared/package/... set for package
+    package: shared directory /shared/package/FIRST_SHARED_PACKAGE_HASH set for package
     Installing package.
-    package: Checking whether package is installed at shared path: .../slapos.recipe.cmmi/slapos/recipe/cmmi/shared/package/...
-    package: Removing already existing directory .../slapos.recipe.cmmi/slapos/recipe/cmmi/shared/package/...__compile__
-    configure --prefix=.../slapos.recipe.cmmi/slapos/recipe/cmmi/shared/package/...
+    package: Checking whether package is installed at shared path: /shared/package/FIRST_SHARED_PACKAGE_HASH
+    package: [ENV] FOO = bar
+    package: Removing already existing directory /shared/package/FIRST_SHARED_PACKAGE_HASH__compile__
+    configure --prefix=/shared/package/FIRST_SHARED_PACKAGE_HASH
     building package
     installing package
 
@@ -1090,9 +1091,9 @@ Do nothing if one package has been installed.
     ...   FOO=bar
     ... """ % (shared_dir, src))
     >>> print(system(buildout)) #doctest:+ELLIPSIS
-    package: shared directory  .../slapos.recipe.cmmi/slapos/recipe/cmmi/shared/package/... set for package
+    package: shared directory /shared/package/FIRST_SHARED_PACKAGE_HASH set for package
     Installing package.
-    package: Checking whether package is installed at shared path: .../slapos.recipe.cmmi/slapos/recipe/cmmi/shared/package/...
+    package: Checking whether package is installed at shared path: /shared/package/FIRST_SHARED_PACKAGE_HASH
     package: This shared package has been installed by other package
 
 If options change, reinstall in different location:
@@ -1111,11 +1112,11 @@ If options change, reinstall in different location:
     ... """ % (shared_dir, src))
 
     >>> print(system(buildout)) #doctest:+ELLIPSIS
-    package: shared directory  .../slapos.recipe.cmmi/slapos/recipe/cmmi/shared/package/... set for package
+    package: shared directory /shared/package/ANOTHER_SHARED_PACKAGE_HASH set for package
     Uninstalling package.
     Installing package.
-    package: Checking whether package is installed at shared path: .../slapos.recipe.cmmi/slapos/recipe/cmmi/shared/package/...
-    configure --prefix=.../slapos.recipe.cmmi/slapos/recipe/cmmi/shared/package/...
+    package: Checking whether package is installed at shared path: /shared/package/ANOTHER_SHARED_PACKAGE_HASH
+    configure --prefix=/shared/package/ANOTHER_SHARED_PACKAGE_HASH
     building package
     installing package
 

slapos/recipe/cmmi/tests.py

+from slapos.recipe.downloadunpacked import Signature
 from zope.testing import renormalizing
 import doctest
 import errno
@@ -319,6 +320,24 @@ class NonInformativeTests(unittest.TestCase):
         self.assertTrue(os.path.exists(build_directory))
 
 def test_suite():
+    # Hash used in the test depend on the file:// url of the package, so
+    # we use re-normalizer to replace SHARED_PACKAGE_HASH with the actual
+    # hash for this path.
+    package_url = 'file://%s/package-0.0.0.tar.gz' % os.path.join(
+        os.path.dirname(__file__), 'testdata')
+
+    signature_FIRST_SHARED_PACKAGE_HASH = Signature('.slapos.recipe.cmmi.signature')
+    signature_FIRST_SHARED_PACKAGE_HASH.update('environment', 'FOO=bar')
+    signature_FIRST_SHARED_PACKAGE_HASH.update('recipe', 'slapos.recipe.cmmi')
+    signature_FIRST_SHARED_PACKAGE_HASH.update('shared', 'True')
+    signature_FIRST_SHARED_PACKAGE_HASH.update('url', package_url)
+
+    signature_ANOTHER_SHARED_PACKAGE_HASH = Signature('.slapos.recipe.cmmi.signature')
+    signature_ANOTHER_SHARED_PACKAGE_HASH.update('change', 'True')
+    signature_ANOTHER_SHARED_PACKAGE_HASH.update('recipe', 'slapos.recipe.cmmi')
+    signature_ANOTHER_SHARED_PACKAGE_HASH.update('shared', 'True')
+    signature_ANOTHER_SHARED_PACKAGE_HASH.update('url', package_url)
+
     suite = unittest.TestSuite((
         doctest.DocFileSuite(
             'README.rst',
@@ -326,10 +345,18 @@ def test_suite():
             tearDown=zc.buildout.testing.buildoutTearDown,
             optionflags=optionflags,
             checker=renormalizing.RENormalizing([
-                (re.compile('--prefix=\S+sample-buildout'),
+                (re.compile(r'--prefix=\S+sample-buildout'),
                  '--prefix=/sample_buildout'),
-                (re.compile('\s/\S+sample-buildout'),
+                (re.compile(r'\s/\S+sample-buildout'),
                  ' /sample_buildout'),
+                (re.compile(r'--prefix=\S+\/shared\/'),
+                 '--prefix=/shared/'),
+               (re.compile(r'\s/\S+\/shared\/'),
+                 ' /shared/'),
+               (re.compile('FIRST_SHARED_PACKAGE_HASH'),
+                signature_FIRST_SHARED_PACKAGE_HASH.hexdigest()),
+               (re.compile('ANOTHER_SHARED_PACKAGE_HASH'),
+                signature_ANOTHER_SHARED_PACKAGE_HASH.hexdigest()),
                 zc.buildout.testing.normalize_path,
                 zc.buildout.testing.not_found,
             ]),