Lab 1

grade-lab1

@@ -0,0 +1,44 @@
+#!/usr/bin/env python
+
+import re
+from gradelib import *
+
+r = Runner(save("jos.out"),
+           stop_breakpoint("readline"))
+
+@test(0, "running JOS")
+def test_jos():
+    r.run_qemu()
+
+@test(20, parent=test_jos)
+def test_printf():
+    r.match("6828 decimal is 15254 octal!")
+
+BACKTRACE_RE = r"^ *ebp +f01[0-9a-z]{5} +eip +f0100[0-9a-z]{3} +args +([0-9a-z]+)"
+
+@test(10, parent=test_jos)
+def test_backtrace_count():
+    matches = re.findall(BACKTRACE_RE, r.qemu.output, re.MULTILINE)
+    assert_equal(len(matches), 8)
+
+@test(10, parent=test_jos)
+def test_backtrace_arguments():
+    matches = re.findall(BACKTRACE_RE, r.qemu.output, re.MULTILINE)
+    assert_equal("\n".join(matches[:7]),
+                 "\n".join("%08x" % n for n in [0,0,1,2,3,4,5]))
+
+@test(5, parent=test_jos)
+def test_backtrace_symbols():
+    matches = re.findall(r"kern/init.c:[0-9]+: +([^+]*)\+", r.qemu.output)
+    assert_equal("\n".join(matches[:7]),
+                 "\n".join(["test_backtrace"] * 6 + ["i386_init"]))
+
+@test(5, parent=test_jos)
+def test_backtrace_lines():
+    matches = re.findall(r"([^ ]*init.c:([0-9]+):) +test_backtrace\+", r.qemu.output)
+    assert matches, "No line numbers"
+    if any(int(m[1]) < 5 or int(m[1]) > 50 for m in matches):
+        assert_equal("\n".join(m[0] for m in matches),
+                     "Line numbers between 5 and 50")
+
+run_tests()