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#include "optional.h"
#include "../utest/utest.h"
#include <stdio.h>
#include <string.h>
DECL_OPTIONAL(int);
DECL_OPTIONAL(char);
DECL_NAMED_OPTIONAL(str, char *);
struct my_struct {
OPTIONAL(int) a;
OPTIONAL(int) b;
};
void optput(OPTIONAL(char) * dst, char src)
{
opt_set_some(*dst, src);
}
TEST_BEGIN(test_optional_example)
{
int a, b;
struct my_struct my = {
.a = OPTSOME(69),
.b = OPTNONE,
};
OPTIONAL(char) y = OPTNONE;
OPTIONAL(char) z = OPTSOME('z');
OPTIONAL(str) s = OPTSOME("hello, world!");
expect(!strcmp(opt_default(s, "NULL!"), "hello, world!"),
"expected to contain string \"hello, world!\"");
float xy, xz;
expect(opt_has(my.a), "expected to contain something");
expect(opt_unwrap(my.a, a), "expected to contain something");
asserteq(a, 69);
expect(!opt_unwrap(my.b, b), "expected to contain nothing");
optput(&y, 'y');
opt_set_none(z);
expect(opt_unwrap(y, xy), "expected to contain something");
asserteq(xy, 'y');
expect(!opt_unwrap(z, xz), "expected to contain nothing");
xy = opt_default(y, 'd'), xz = opt_default(z, 'd');
asserteq(xy, 'y');
asserteq(xz, 'd');
TEST_OUT
}
TEST_END
RUN_TESTS(test_optional_example)
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