Changeset 5041

Timestamp:

Feb 18, 2008, 5:52:52 PM (16 years ago)

Author:

ole

Message:

Added new test for checksum's based on a real, persistent files. Previous tests were based on generated files.

Location:

anuga_core/source/anuga/utilities

Files:

• crc_test_file.png (added)
• test_system_tools.py (modified) (3 diffs)

anuga_core/source/anuga/utilities/test_system_tools.py

@@ -5 +5 @@
 from Numeric import zeros, array, allclose, Float
 from Scientific.IO.NetCDF import NetCDFFile
+import zlib
 
 from system_tools import *
@@ -33 +34 @@
         """
 
-        import zlib
         from tempfile import mkstemp, mktemp
 
@@ -98 +98 @@
         os.remove(filename2)
 
+
+    def test_compute_checksum_real(self):
+        """test_compute_checksum(self):
+
+        Check that checksums on a png file is OK
+        """
+
+        filename = 'crc_test_file.png'
+
+        ref_crc = -1808745910  # Computed on Windows box
+        checksum = compute_checksum(filename)
+
+        msg = 'Computed checksum = %s, should have been %s' %(checksum, ref_crc)
+        assert checksum == ref_crc, msg
+        #print checksum
+        
         
 #-------------------------------------------------------------