Remove asserts from Python testcase

Also rename testcase python_pybuf to python_pybuffer.

Examples/test-suite/python/Makefile.in

@@ -66,7 +66,7 @@ CPP_TEST_CASES += \
 	python_moduleimport \
 	python_overload_simple_cast \
 	python_pickle \
-	python_pybuf \
+	python_pybuffer \
 	python_pythoncode \
 	python_richcompare \
 	python_strict_unicode \

Examples/test-suite/python/python_pybuffer_runme.py

@@ -0,0 +1,46 @@
+# run:
+#  python python_pybuffer_runme.py benchmark
+# for the benchmark, other wise the test case will be run
+import python_pybuffer
+import sys
+
+def check(flag):
+    if not flag:
+        raise RuntimeError("Test failed")
+
+if len(sys.argv) >= 2 and sys.argv[1] == "benchmark":
+    # run the benchmark
+    import time
+    k = 1000000  # number of times to execute the functions
+
+    t = time.time()
+    a = bytearray(b'hello world')
+    for i in range(k):
+        python_pybuffer.title1(a)
+    print "Time used by bytearray:", time.time() - t
+
+    t = time.time()
+    b = 'hello world'
+    for i in range(k):
+        python_pybuffer.title2(b)
+    print "Time used by string:", time.time() - t
+else:
+    # run the test case
+    buf1 = bytearray(10)
+    buf2 = bytearray(50)
+
+    python_pybuffer.func1(buf1)
+    check(buf1 == b'a' * 10)
+
+    python_pybuffer.func2(buf2)
+    check(buf2.startswith(b"Hello world!\x00"))
+
+    count = python_pybuffer.func3(buf2)
+    check(count == 10)  # number of alpha and number in 'Hello world!'
+
+    length = python_pybuffer.func4(buf2)
+    check(length == 12)
+
+    buf3 = bytearray(b"hello")
+    python_pybuffer.title1(buf3)
+    check(buf3 == b'Hello')

Examples/test-suite/python_pybuffer.i

@@ -0,0 +1,64 @@
+%module python_pybuffer
+%include <pybuffer.i>
+%include <cstring.i>
+/*functions for the test case*/
+%pybuffer_mutable_binary(char *buf1, int len);
+%pybuffer_mutable_string(char *buf2);
+%pybuffer_binary(const char *buf3, int len);
+%pybuffer_string(const char *buf4);
+
+%inline %{
+  void func1(char *buf1, int len)
+  {
+    int i;
+    for (i=0; i<len; ++i)
+      buf1[i] = 'a';
+    return;
+  }
+  void func2(char *buf2)
+  {
+    strcpy(buf2, "Hello world!");
+  }
+  int func3(const char *buf3, int len)
+  {
+    int count = 0;
+    int i;
+    for(i=0; i<len; ++i)
+      if (isalnum(buf3[i]))
+        ++count;
+    return count;
+  }
+  int func4(const char *buf4)
+  {
+    return strlen(buf4);
+  }  
+%}
+
+/*functions for the benchmark*/
+%pybuffer_mutable_string(char *str1);
+%cstring_mutable(char *str2);
+
+%inline %{
+void title(char *str) {
+    int outword = 1;
+    while(*str) {
+        if (isalnum(*str)) {
+            if (outword) {
+                outword = 0;
+                *str = toupper(*str);
+            }            
+        }
+        else {
+            outword = 0;
+        }
+        str++;
+    }
+}
+
+void title1(char *str1) {
+    title(str1);
+}
+void title2(char *str2) {
+    title(str2);
+}
+%}