X-Git-Url: https://git.ozlabs.org/?a=blobdiff_plain;f=ccan%2Fbitmap%2Ftest%2Frun-ranges.c;fp=ccan%2Fbitmap%2Ftest%2Frun-ranges.c;h=5ba383caf534a1690d60354aa8d901acca1d5fce;hb=4e7f97a92ef78a956425f8d0d03e57230e131618;hp=0000000000000000000000000000000000000000;hpb=d91a3b8b416ed12bf7c0d5b0bda902b7ae769a40;p=ccan

diff --git a/ccan/bitmap/test/run-ranges.c b/ccan/bitmap/test/run-ranges.c
new file mode 100644
index 00000000..5ba383ca
--- /dev/null
+++ b/ccan/bitmap/test/run-ranges.c
@@ -0,0 +1,77 @@
+#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, 24, 32, 64, 256,
+	/*
+	 * Don't put too big sizes in here, or it will take forever to
+	 * run under valgrind (the test is O(n^3)).
+	 */
+};
+#define NSIZES ARRAY_SIZE(bitmap_sizes)
+#define NTESTS 2
+
+static void test_size(int nbits)
+{
+	BITMAP_DECLARE(bitmap, nbits);
+	uint32_t marker = 0xdeadbeef;
+	int i, j, k;
+	bool wrong;
+
+	for (i = 0; i < nbits; i++) {
+		for (j = i; j <= nbits; j++) {
+			bitmap_zero(bitmap, nbits);
+			bitmap_fill_range(bitmap, i, j);
+
+			wrong = false;
+			for (k = 0; k < nbits; k++) {
+				bool inrange = (k >= i) && (k < j);
+				wrong = wrong || (bitmap_test_bit(bitmap, k) != inrange);
+			}
+			ok1(!wrong);
+		}
+	}
+
+	for (i = 0; i < nbits; i++) {
+		for (j = i; j <= nbits; j++) {
+			bitmap_fill(bitmap, nbits);
+			bitmap_zero_range(bitmap, i, j);
+
+			wrong = false;
+			for (k = 0; k < nbits; k++) {
+				bool inrange = (k >= i) && (k < j);
+				wrong = wrong || (bitmap_test_bit(bitmap, k) == inrange);
+			}
+			ok1(!wrong);
+		}
+	}
+
+	ok1(marker == 0xdeadbeef);
+}
+
+int main(void)
+{
+	int totaltests = 0;
+	int i;
+
+	for (i = 0; i < NSIZES; i++) {
+		int size = bitmap_sizes[i];
+
+		/* Summing the arithmetic series gives: */
+		totaltests += size*(size + 3) + 1;
+	}
+	plan_tests(totaltests);
+
+	for (i = 0; i < NSIZES; i++) {
+		diag("Testing %d-bit bitmap", bitmap_sizes[i]);
+		test_size(bitmap_sizes[i]);
+	}
+
+	/* This exits depending on whether all tests passed */
+	return exit_status();
+}