autodata: stash pointers in a binary.

[ccan] / ccan / autodata / test / run-fools.c

diff --git a/ccan/autodata/test/run-fools.c b/ccan/autodata/test/run-fools.c
new file mode 100644 (file)
index 0000000..47a3b06
--- /dev/null
+++ b/ccan/autodata/test/run-fools.c
@@ -0,0 +1,71 @@
+#include <ccan/autodata/autodata.h>
+/* Include the C files directly. */
+#include <ccan/autodata/autodata.c>
+#include <ccan/tap/tap.h>
+
+AUTODATA_TYPE(autostrings, char);
+
+AUTODATA(autostrings, "genuine");
+
+#if !HAVE_SECTION_START_STOP
+/* These are all fake, to test the various failure paths. */
+/* Hopefully fake_alpha or fake_omega will test run-past-end. */
+static const void *NEEDED fake_alpha[] = { (void *)AUTODATA_MAGIC };
+
+/* Wrong magic in the middle. */
+static const void *NEEDED fake1[] = { (void *)(AUTODATA_MAGIC ^ 0x10000),
+                                     (void *)&fake1,
+                                     "fake1",
+                                     (void *)"autostrings" };
+
+/* Wrong self pointer. */
+static const void *NEEDED fake2[] = { (void *)AUTODATA_MAGIC,
+                                     (void *)&fake1,
+                                     "fake2",
+                                     (void *)"autostrings" };
+
+/* Wrong name. */
+static const void *NEEDED fake3[] = { (void *)AUTODATA_MAGIC,
+                                     (void *)&fake3,
+                                     "fake3",
+                                     (void *)"autostrings2" };
+
+/* Invalid self-pointer. */
+static const void *NEEDED fake4[] = { (void *)AUTODATA_MAGIC,
+                                     (void *)1UL,
+                                     "fake4",
+                                     (void *)"autostrings" };
+
+/* Invalid name pointer */
+static const void *NEEDED fake5[] = { (void *)AUTODATA_MAGIC,
+                                     (void *)&fake5,
+                                     "fake5",
+                                     (void *)1UL };
+
+/* Invalid contents pointer */
+static const void *NEEDED fake6[] = { (void *)AUTODATA_MAGIC,
+                                     (void *)&fake6,
+                                     (char *)1UL,
+                                     (void *)"autostrings" };
+
+static const void *NEEDED fake_omega[] = { (void *)AUTODATA_MAGIC };
+#endif
+
+int main(void)
+{
+       char **table;
+       size_t num;
+
+       /* This is how many tests you plan to run */
+       plan_tests(2);
+
+       table = autodata_get(autostrings, &num);
+       ok1(num == 2);
+       ok1((!strcmp(table[0], "genuine") && !strcmp(table[1], "helper"))
+           || (!strcmp(table[1], "genuine") && !strcmp(table[0], "helper")));
+
+       autodata_free(table);
+
+       /* This exits depending on whether all tests passed */
+       return exit_status();
+}