Add qemu 2.4.0

[kvmfornfv.git] / qemu / dtc / tests / utilfdt_test.c

diff --git a/qemu/dtc/tests/utilfdt_test.c b/qemu/dtc/tests/utilfdt_test.c
new file mode 100644 (file)
index 0000000..274c3d6
--- /dev/null
+++ b/qemu/dtc/tests/utilfdt_test.c
@@ -0,0 +1,127 @@
+/*
+ * Copyright 2011 The Chromium Authors, All Rights Reserved.
+ *
+ * utilfdt_test - Tests for utilfdt library
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public License
+ * as published by the Free Software Foundation; either version 2.1 of
+ * the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+#include <assert.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <stdint.h>
+#include <stdarg.h>
+
+#include <libfdt.h>
+#include <util.h>
+
+#include "tests.h"
+#include "testdata.h"
+
+static void check(const char *fmt, int expect_type, int expect_size)
+{
+       int type;
+       int size;
+
+       if (utilfdt_decode_type(fmt, &type, &size))
+               FAIL("format '%s': valid format string returned failure", fmt);
+       if (expect_type != type)
+               FAIL("format '%s': expected type='%c', got type='%c'", fmt,
+                    expect_type, type);
+       if (expect_size != size)
+               FAIL("format '%s': expected size=%d, got size=%d", fmt,
+                    expect_size, size);
+}
+
+static void checkfail(const char *fmt)
+{
+       int type;
+       int size;
+
+       if (!utilfdt_decode_type(fmt, &type, &size))
+               FAIL("format '%s': invalid format string returned success",
+                    fmt);
+}
+
+/**
+ * Add the given modifier to each of the valid sizes, and check that we get
+ * correct values.
+ *
+ * \param modifier     Modifer string to use as a prefix
+ * \param expected_size        The size (in bytes) that we expect (ignored for
+ *                     strings)
+ */
+static void check_sizes(char *modifier, int expected_size)
+{
+       char fmt[10], *ptr;
+
+       /* set up a string with a hole in it for the format character */
+       if (strlen(modifier) + 2 >= sizeof(fmt))
+               FAIL("modifier string '%s' too long", modifier);
+       strcpy(fmt, modifier);
+       ptr = fmt + strlen(fmt);
+       ptr[1] = '\0';
+
+       /* now try each format character in turn */
+       *ptr = 'i';
+       check(fmt, 'i', expected_size);
+
+       *ptr = 'u';
+       check(fmt, 'u', expected_size);
+
+       *ptr = 'x';
+       check(fmt, 'x', expected_size);
+
+       *ptr = 's';
+       check(fmt, 's', -1);
+}
+
+static void test_utilfdt_decode_type(void)
+{
+       char fmt[10];
+       int ch;
+
+       /* check all the valid modifiers and sizes */
+       check_sizes("", -1);
+       check_sizes("b", 1);
+       check_sizes("hh", 1);
+       check_sizes("h", 2);
+       check_sizes("l", 4);
+
+       /* try every other character */
+       checkfail("");
+       for (ch = ' '; ch < 127; ch++) {
+               if (!strchr("iuxs", ch)) {
+                       *fmt = ch;
+                       fmt[1] = '\0';
+                       checkfail(fmt);
+               }
+       }
+
+       /* try a few modifiers at the end */
+       checkfail("sx");
+       checkfail("ihh");
+       checkfail("xb");
+
+       /* and one for the doomsday archives */
+       checkfail("He has all the virtues I dislike and none of the vices "
+                       "I admire.");
+}
+
+int main(int argc, char *argv[])
+{
+       test_utilfdt_decode_type();
+       PASS();
+}