centralized performance resources

ocw/1/c-primer/verifier.py

@@ -0,0 +1,111 @@
+#!/usr/bin/python
+import subprocess, os, sys, re
+
+def exitWithError(error):
+    print error
+    sys.exit(1)
+
+def runAndReadOutput(args):
+    if args is str:
+        args = [args]
+    try:
+        return subprocess.check_output(args)
+    except subprocess.CalledProcessError as e:
+        exitWithError("ERROR: runtime error with %s" % str(args))
+
+def run(path): runAndReadOutput(path)
+
+def runAndCheckSizes():
+    output = runAndReadOutput("./sizes")
+    expected_output_format = "size of %s : %d bytes"
+
+    lines = set([x.replace(" ", "") for x in output.strip().lower().split('\n')])
+    types = [
+        ( "int", 4 ),
+        ( "short", 2 ),
+        ( "long", 8 ),
+        ( "char", 1 ),
+        ( "float", 4 ),
+        ( "double", 8 ),
+        ( "unsigned int", 4 ),
+        ( "long long", 8 ),
+        ( "uint8_t", 1 ),
+        ( "uint16_t", 2 ),
+        ( "uint32_t", 4 ),
+        ( "uint64_t", 8 ),
+        ( "uint_fast8_t", 1 ),
+        ( "uint_fast16_t", 8 ),
+        ( "uintmax_t", 8 ),
+        ( "intmax_t", 8 ),
+        ( "__int128", 16 ),
+        ( "uint32_t", 4 ),
+        ( "uint64_t", 8 ),
+        ( "student", 8 ),
+	( "x", 20),
+        ( "int*", 8 ),
+        ( "short*", 8 ),
+        ( "long*", 8 ),
+        ( "char*", 8 ),
+        ( "float*", 8 ),
+        ( "double*", 8 ),
+        ( "unsigned int*", 8 ),
+        ( "long long*", 8 ),
+        ( "uint8_t*", 8 ),
+        ( "uint16_t*", 8 ),
+        ( "uint32_t*", 8 ),
+        ( "uint64_t*", 8 ),
+        ( "uint_fast8_t*", 8 ),
+        ( "uint_fast16_t*", 8 ),
+        ( "uintmax_t*", 8 ),
+        ( "intmax_t*", 8 ),
+        ( "__int128*", 8 ),
+        ( "uint32_t*", 8 ),
+        ( "uint64_t*", 8 ),
+        ( "student*", 8 ),
+	( "&x", 8)
+    ]
+
+    for typ in types:
+        print (expected_output_format % typ)
+        if (expected_output_format % typ).replace(" ", "") not in lines:
+            exitWithError("ERROR: couldn't find type %s (or it has the incorrect value) in sizes output" % typ[0])
+
+def runAndCheckSwap():
+    expected_output = "k = 2, m = 1\n"
+    output = runAndReadOutput("./swap")
+
+    if output != expected_output:
+        exitWithError('ERROR: actual output: "%s", expected "%s"' % (output, expected_output))
+
+def build(make_arg, filename):
+    print "\nRunning make %s ... " % make_arg
+    run(["make", filename])
+    print "Ok!"
+
+    print "\nChecking that %s was built ... " % filename
+    if not os.path.isfile(filename):
+        exitWithError("ERROR: %s binary missing, did you rename it?" % filename)
+    print "Ok!"
+
+
+print "Running verifying script ... "
+
+print "\nChecking that the Makefile exists ... "
+if not os.path.isfile('Makefile'):
+    exitWithError('ERROR: Makefile does not exist.')
+print "Good!"
+
+build("sizes", "sizes")
+print "Checking output of sizes ... "
+runAndCheckSizes()
+print "Ok!"
+
+build("pointer", "pointer")
+run("./pointer")  # Run pointer as a sanity check, but there's no output to check
+
+build("swap", "swap")
+print "Checking output of swap ... "
+runAndCheckSwap()
+print "Ok!"
+
+print "LGTM"