update testing tools to wrangle MD5s

add some logic for generating, reading and comparing MD5s since the proper
code base is no longer using statinfo, but rather content checksums to
determine whether a rebuild is necessary

tests/tldptesttools.py

@@ -13,6 +13,7 @@ from tempfile import NamedTemporaryFile as ntf
 
 import tldp.config
 from tldp.outputs import OutputNamingConvention
+from tldp.utils import writemd5sums, md5file
 
 # -- short names
 #
@@ -111,18 +112,14 @@ class TestOutputDirSkeleton(OutputNamingConvention):
         if not os.path.isdir(self.dirname):
             os.mkdir(self.dirname)
 
-    def create_expected_docs(self, func=None):
+    def create_md5sum_file(self, md5s):
+        writemd5sums(self.MD5SUMS, md5s)
+
+    def create_expected_docs(self):
         for name in self.expected:
             fname = getattr(self, name)
             with open(fname, 'w'):
                 pass
-            if func:
-                func(fname)
-
-    def create_stale_expected_docs(self):
-        def thirtysecondsago(fname):
-            os.utime(fname, (time.time() - 30, time.time() - 30))
-        self.create_expected_docs(func=thirtysecondsago)
 
 
 class TestSourceDocSkeleton(object):
@@ -135,6 +132,18 @@ class TestSourceDocSkeleton(object):
         self.dirname = dirname
         if not os.path.isdir(self.dirname):
             os.mkdir(self.dirname)
+        self.md5s = dict()
+
+    def create_stale(self, fname):
+        l = list(self.md5s[fname])
+        random.shuffle(l)
+        if l == self.md5s[fname]:
+            self.invalidate_checksum(fname)
+        self.md5s[fname] = ''.join(l)
+
+    @property
+    def md5sums(self):
+        return self.md5s
 
     def addsourcefile(self, filename, content):
         fname = os.path.join(self.dirname, filename)
@@ -143,6 +152,8 @@ class TestSourceDocSkeleton(object):
         else:
             with codecs.open(fname, 'w', encoding='utf-8') as f:
                 f.write(content)
+        relpath = os.path.relpath(fname, start=self.dirname)
+        self.md5s[relpath] = md5file(fname)
 
 
 class TestInventoryBase(unittest.TestCase):
@@ -177,19 +188,24 @@ class TestInventoryBase(unittest.TestCase):
 
     def add_stale(self, stem, ex):
         c = self.config
+        mysource = TestSourceDocSkeleton(c.sourcedir)
+        fname = stem + ex.ext
+        mysource.addsourcefile(fname, ex.filename)
+        mysource.create_stale(fname)
         myoutput = TestOutputDirSkeleton(os.path.join(c.pubdir, stem), stem)
         myoutput.mkdir()
-        myoutput.create_stale_expected_docs()
-        mysource = TestSourceDocSkeleton(c.sourcedir)
-        mysource.addsourcefile(stem + ex.ext, ex.filename)
+        myoutput.create_expected_docs()
+        myoutput.create_md5sum_file(mysource.md5sums)
 
     def add_broken(self, stem, ex):
         c = self.config
         mysource = TestSourceDocSkeleton(c.sourcedir)
-        mysource.addsourcefile(stem + ex.ext, ex.filename)
+        fname = stem + ex.ext
+        mysource.addsourcefile(fname, ex.filename)
         myoutput = TestOutputDirSkeleton(os.path.join(c.pubdir, stem), stem)
         myoutput.mkdir()
         myoutput.create_expected_docs()
+        myoutput.create_md5sum_file(mysource.md5sums)
         prop = random.choice(myoutput.expected)
         fname = getattr(myoutput, prop, None)
         assert fname is not None
@@ -224,6 +240,7 @@ class TestInventoryBase(unittest.TestCase):
         myoutput = TestOutputDirSkeleton(os.path.join(c.pubdir, stem), stem)
         myoutput.mkdir()
         myoutput.create_expected_docs()
+        myoutput.create_md5sum_file(mysource.md5sums)
 
     def add_docbooksgml_support_to_config(self):
         c = self.config