X-Git-Url: https://git.ozlabs.org/?a=blobdiff_plain;f=ccan%2Fbitmap%2Ftest%2Frun-alloc.c;fp=ccan%2Fbitmap%2Ftest%2Frun-alloc.c;h=fcdaf4daaab5872d016380167d79d62fbe93315e;hb=b9c9f5d934cda9717e373824e81670ec075fe001;hp=0000000000000000000000000000000000000000;hpb=4e7f97a92ef78a956425f8d0d03e57230e131618;p=ccan

diff --git a/ccan/bitmap/test/run-alloc.c b/ccan/bitmap/test/run-alloc.c
new file mode 100644
index 00000000..fcdaf4da
--- /dev/null
+++ b/ccan/bitmap/test/run-alloc.c
@@ -0,0 +1,101 @@
+#include <ccan/bitmap/bitmap.h>
+#include <ccan/tap/tap.h>
+#include <ccan/array_size/array_size.h>
+#include <ccan/foreach/foreach.h>
+
+#include <ccan/bitmap/bitmap.c>
+
+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_BASE 4
+#define NTESTS_REALLOC 10
+
+static void test_basic_alloc(int nbits)
+{
+	bitmap *bitmap;
+
+	bitmap = bitmap_alloc0(nbits);
+	ok1(bitmap != NULL);
+	ok1(bitmap_empty(bitmap, nbits));
+
+	free(bitmap);
+
+	bitmap = bitmap_alloc1(nbits);
+	ok1(bitmap != NULL);
+	ok1(bitmap_full(bitmap, nbits));
+
+	free(bitmap);
+}
+
+static void test_realloc(int obits, int nbits)
+{
+	bitmap *bitmap;
+	int i;
+	bool wrong;
+
+	bitmap = bitmap_alloc0(obits);
+	ok1(bitmap != NULL);
+	ok1(bitmap_empty(bitmap, obits));
+
+	bitmap = bitmap_realloc1(bitmap, obits, nbits);
+	ok1(bitmap != NULL);
+	if (obits < nbits)
+		ok1(bitmap_empty(bitmap, obits));
+	else
+		ok1(bitmap_empty(bitmap, nbits));
+
+	wrong = false;
+	for (i = obits; i < nbits; i++)
+		wrong = wrong || !bitmap_test_bit(bitmap, i);
+	ok1(!wrong);
+
+	free(bitmap);
+
+	bitmap = bitmap_alloc1(obits);
+	ok1(bitmap != NULL);
+	ok1(bitmap_full(bitmap, obits));
+
+	bitmap = bitmap_realloc0(bitmap, obits, nbits);
+	ok1(bitmap != NULL);
+	if (obits < nbits)
+		ok1(bitmap_full(bitmap, obits));
+	else
+		ok1(bitmap_full(bitmap, nbits));
+
+	wrong = false;
+	for (i = obits; i < nbits; i++)
+		wrong = wrong || bitmap_test_bit(bitmap, i);
+	ok1(!wrong);
+
+	free(bitmap);
+}
+
+int main(void)
+{
+	int i, j;
+
+	/* This is how many tests you plan to run */
+	plan_tests(NSIZES * NTESTS_BASE + NSIZES * NSIZES * NTESTS_REALLOC);
+
+	for (i = 0; i < NSIZES; i++) {
+		diag("Testing %d-bit bitmap", bitmap_sizes[i]);
+		test_basic_alloc(bitmap_sizes[i]);
+	}
+
+	for (i = 0; i < NSIZES; i++) {
+		for (j = 0; j < NSIZES; j++) {
+			diag("Testing %d-bit => %d-bit bitmap",
+			     bitmap_sizes[i], bitmap_sizes[j]);
+
+			test_realloc(bitmap_sizes[i], bitmap_sizes[j]);
+		}
+	}
+
+	/* This exits depending on whether all tests passed */
+	return exit_status();
+}