jbitset: new module.

[ccan] / ccan / jbitset / test / run.c

diff --git a/ccan/jbitset/test/run.c b/ccan/jbitset/test/run.c
new file mode 100644 (file)
index 0000000..09f00bd
--- /dev/null
+++ b/ccan/jbitset/test/run.c
@@ -0,0 +1,66 @@
+#include <ccan/tap/tap.h>
+#include <ccan/jbitset/jbitset.c>
+
+int main(int argc, char *argv[])
+{
+       struct jbitset *set;
+       size_t i;
+       const char *err;
+
+       plan_tests(36);
+
+       set = jbit_new();
+       ok1(jbit_error(set) == NULL);
+
+       ok1(jbit_set(set, 0) == true);
+       ok1(jbit_set(set, 0) == false);
+       ok1(jbit_clear(set, 0) == true);
+       ok1(jbit_clear(set, 0) == false);
+       ok1(jbit_popcount(set, 0, -1) == 0);
+       ok1(jbit_nth(set, 0, 0) == 0);
+       ok1(jbit_nth(set, 0, -1) == (size_t)-1);
+       ok1(jbit_first(set, 0) == 0);
+       ok1(jbit_first(set, -1) == (size_t)-1);
+       ok1(jbit_last(set, 0) == 0);
+       ok1(jbit_last(set, -1) == (size_t)-1);
+       ok1(jbit_first_clear(set, -1) == 0);
+       ok1(jbit_first_clear(set, -2) == 0);
+       ok1(jbit_last_clear(set, 0) == (size_t)-1);
+       ok1(jbit_prev_clear(set, 1, -1) == 0);
+       ok1(jbit_next_clear(set, 0, -1) == 1);
+       ok1(jbit_next_clear(set, -1, -1) == -1);
+
+       /* Set a million bits, 16 bits apart. */
+       for (i = 0; i < 1000000; i++)
+               jbit_set(set, i << 4);
+
+       /* This only take 1.7MB on my 32-bit system. */
+       diag("%u bytes memory used\n", (unsigned)Judy1MemUsed(set->judy));
+       
+       ok1(jbit_popcount(set, 0, -1) == 1000000);
+       ok1(jbit_nth(set, 0, -1) == 0);
+       ok1(jbit_nth(set, 999999, -1) == 999999 << 4);
+       ok1(jbit_nth(set, 1000000, -1) == (size_t)-1);
+       ok1(jbit_first(set, -1) == 0);
+       ok1(jbit_last(set, -1) == 999999 << 4);
+       ok1(jbit_first_clear(set, -1) == 1);
+       ok1(jbit_last_clear(set, 0) == (size_t)-1);
+       ok1(jbit_prev_clear(set, 1, -1) == (size_t)-1);
+       ok1(jbit_next(set, 0, -1) == 1 << 4);
+       ok1(jbit_next(set, 999999 << 4, -1) == (size_t)-1);
+       ok1(jbit_prev(set, 1, -1) == 0);
+       ok1(jbit_prev(set, 0, -1) == (size_t)-1);
+       ok1(jbit_error(set) == NULL);
+
+       /* Test error handling */
+       JU_ERRNO(&set->err) = 100;
+       JU_ERRID(&set->err) = 991;
+       err = jbit_error(set);
+       ok1(err);
+       ok1(strstr(err, "100"));
+       ok1(strstr(err, "991"));
+       ok1(err == set->errstr);
+       jbit_free(set);
+
+       return exit_status();
+}