[py] add helper to check if we are on a 32bit system

[aubio.git] / python / tests / utils.py

diff --git a/python/tests/utils.py b/python/tests/utils.py
index 6d98c14..7606404 100644 (file)
--- a/python/tests/utils.py
+++ b/python/tests/utils.py
@@ -1,16 +1,22 @@
 #! /usr/bin/env python
 
+import os
+import re
+import glob
+import struct
+import numpy as np
+from tempfile import mkstemp
+
+DEFAULT_SOUND = '22050Hz_5s_brownnoise.wav'
+
+def is32bit():
+    return struct.calcsize("P") * 8 == 32
+
 def array_from_text_file(filename, dtype = 'float'):
-    import os.path
-    from numpy import array
-    filename = os.path.join(os.path.dirname(__file__), filename)
-    with open(filename) as f:
-        lines = f.readlines()
-    return array([line.split() for line in lines],
-            dtype = dtype)
+    realpathname = os.path.join(os.path.dirname(__file__), filename)
+    return np.loadtxt(realpathname, dtype = dtype)
 
 def list_all_sounds(rel_dir):
-    import os.path, glob
     datadir = os.path.join(os.path.dirname(__file__), rel_dir)
     return glob.glob(os.path.join(datadir,'*.*'))
 
@@ -19,18 +25,25 @@ def get_default_test_sound(TestCase, rel_dir = 'sounds'):
     if len(all_sounds) == 0:
         TestCase.skipTest("please add some sounds in \'python/tests/sounds\'")
     else:
-        return all_sounds[0]
+        default_sound = all_sounds[0]
+        if DEFAULT_SOUND in map(os.path.basename, all_sounds):
+            while os.path.basename(default_sound) != DEFAULT_SOUND:
+                default_sound = all_sounds.pop(0)
+        return default_sound
 
 def get_tmp_sink_path():
-    from tempfile import mkstemp
-    import os
     fd, path = mkstemp()
     os.close(fd)
     return path
 
 def del_tmp_sink_path(path):
-    import os
-    os.unlink(path)
+    try:
+        os.unlink(path)
+    except WindowsError as e:
+        # removing the temporary directory sometimes fails on windows
+        import warnings
+        errmsg = "failed deleting temporary file {:s} ({:s})"
+        warnings.warn(UserWarning(errmsg.format(path, repr(e))))
 
 def array_from_yaml_file(filename):
     import yaml
@@ -45,13 +58,12 @@ def count_samples_in_file(file_path):
     s = source(file_path, 0, hopsize)
     total_frames = 0
     while True:
-        samples, read = s()
+        _, read = s()
         total_frames += read
         if read < hopsize: break
     return total_frames
 
 def count_samples_in_directory(samples_dir):
-    import os
     total_frames = 0
     for f in os.walk(samples_dir):
         if len(f[2]):
@@ -62,7 +74,6 @@ def count_samples_in_directory(samples_dir):
     return total_frames
 
 def count_files_in_directory(samples_dir):
-    import os
     total_files = 0
     for f in os.walk(samples_dir):
         if len(f[2]):
@@ -71,3 +82,16 @@ def count_files_in_directory(samples_dir):
                 if file_path:
                     total_files += 1
     return total_files
+
+def parse_file_samplerate(soundfile):
+    samplerate = None
+    # parse samplerate
+    re_sr = re.compile(r'/([0-9]{4,})Hz_.*')
+    match_samplerate = re_sr.findall(soundfile)
+    if match_samplerate:
+        samplerate = int(match_samplerate[0])
+    else:
+        import warnings
+        warnings.warn(UserWarning("could not parse samplerate for {:s}"
+            .format(soundfile)))
+    return samplerate