opt: much prettier usage (using terminal size)

[ccan] / ccan / opt / test / run-consume_words.c

diff --git a/ccan/opt/test/run-consume_words.c b/ccan/opt/test/run-consume_words.c
new file mode 100644 (file)
index 0000000..ae4d5d3
--- /dev/null
+++ b/ccan/opt/test/run-consume_words.c
@@ -0,0 +1,37 @@
+#include <ccan/tap/tap.h>
+#include <ccan/opt/opt.c>
+#include <ccan/opt/usage.c>
+#include <ccan/opt/helpers.c>
+#include <ccan/opt/parse.c>
+
+/* Test consume_words helper. */
+int main(int argc, char *argv[])
+{
+       unsigned int start, len;
+
+       plan_tests(13);
+
+       /* Every line over width. */
+       len = consume_words("hello world", 1, &start);
+       ok1(start == 0);
+       ok1(len == strlen("hello"));
+       len = consume_words(" world", 1, &start);
+       ok1(start == 1);
+       ok1(len == strlen("world"));
+       ok1(consume_words("", 1, &start) == 0);
+
+       /* Same with width where won't both fit. */
+       len = consume_words("hello world", 5, &start);
+       ok1(start == 0);
+       ok1(len == strlen("hello"));
+       len = consume_words(" world", 5, &start);
+       ok1(start == 1);
+       ok1(len == strlen("world"));
+       ok1(consume_words("", 5, &start) == 0);
+
+       len = consume_words("hello world", 11, &start);
+       ok1(start == 0);
+       ok1(len == strlen("hello world"));
+       ok1(consume_words("", 11, &start) == 0);
+       return exit_status();
+}