--- /dev/null
+#include <ccan/bitmap/bitmap.h>
+#include <ccan/tap/tap.h>
+#include <ccan/array_size/array_size.h>
+
+int bitmap_sizes[] = {
+ 1, 2, 3, 4, 5, 6, 7, 8,
+ 16, 17, 24, 32, 33,
+ 64, 65, 127, 128, 129,
+ 1023, 1024, 1025,
+};
+#define NSIZES ARRAY_SIZE(bitmap_sizes)
+#define NTESTS 9
+
+static void test_sizes(int nbits)
+{
+ void *bitmap = bitmap_alloc(nbits);
+ int i, j;
+ bool wrong;
+
+ ok1(bitmap != NULL);
+
+ bitmap_zero(bitmap, nbits);
+ wrong = false;
+ for (i = 0; i < nbits; i++) {
+ wrong = wrong || bitmap_test_bit(bitmap, i);
+ }
+ ok1(!wrong);
+
+ bitmap_fill(bitmap, nbits);
+ wrong = false;
+ for (i = 0; i < nbits; i++) {
+ wrong = wrong || !bitmap_test_bit(bitmap, i);
+ }
+ ok1(!wrong);
+
+ wrong = false;
+ for (i = 0; i < nbits; i++) {
+ bitmap_zero(bitmap, nbits);
+ bitmap_set_bit(bitmap, i);
+ for (j = 0; j < nbits; j++) {
+ bool val = (i == j);
+
+ wrong = wrong || (bitmap_test_bit(bitmap, j) != val);
+ }
+ }
+ ok1(!wrong);
+
+ wrong = false;
+ for (i = 0; i < nbits; i++) {
+ bitmap_fill(bitmap, nbits);
+ bitmap_clear_bit(bitmap, i);
+ for (j = 0; j < nbits; j++) {
+ bool val = !(i == j);
+
+ wrong = wrong || (bitmap_test_bit(bitmap, j) != val);
+ }
+ }
+ ok1(!wrong);
+
+ bitmap_zero(bitmap, nbits);
+ ok1(bitmap_empty(bitmap, nbits));
+
+ wrong = false;
+ for (i = 0; i < nbits; i++) {
+ bitmap_zero(bitmap, nbits);
+ bitmap_set_bit(bitmap, i);
+ wrong = wrong || bitmap_empty(bitmap, nbits);
+ }
+ ok1(!wrong);
+
+ bitmap_fill(bitmap, nbits);
+ ok1(bitmap_full(bitmap, nbits));
+
+ wrong = false;
+ for (i = 0; i < nbits; i++) {
+ bitmap_fill(bitmap, nbits);
+ bitmap_clear_bit(bitmap, i);
+ wrong = wrong || bitmap_full(bitmap, nbits);
+ }
+ ok1(!wrong);
+
+ free(bitmap);
+}
+
+int main(void)
+{
+ int i;
+
+ /* This is how many tests you plan to run */
+ plan_tests(NSIZES * NTESTS);
+
+ for (i = 0; i < NSIZES; i++) {
+ diag("Testing %d-bit bitmap", bitmap_sizes[i]);
+ test_sizes(bitmap_sizes[i]);
+ }
+
+ /* This exits depending on whether all tests passed */
+ return exit_status();
+}