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/// \file
/// \brief basic unit tester for tokenize.h
#ifdef NDEBUG
#error this is not intended to be compiled with assertions off
#endif
#include <assert.h>
#include <stdio.h>
#include <stdlib.h>
#include <util/strview.h>
#include <util/tokenize.h>
/// basic lifecycle
static void test_basic(void) {
const char input[] = "hello world";
tok_t t = tok(input, " ");
assert(!tok_end(&t));
strview_t hello = tok_get(&t);
assert(strview_str_eq(hello, "hello"));
tok_next(&t);
assert(!tok_end(&t));
strview_t world = tok_get(&t);
assert(strview_str_eq(world, "world"));
tok_next(&t);
assert(tok_end(&t));
}
/// create, but do not use a tokenizer in case ASan can detect leaking memory
static void test_no_usage(void) {
const char input[] = "hello world";
tok_t t = tok(input, " ");
// squash compiler warnings for `t` being unused
(void)t;
}
/// an example with multiple tokens
static void test_multiple(void) {
const char input[] = "foo/bar/baz";
tok_t t = tok(input, "/");
assert(!tok_end(&t));
strview_t foo = tok_get(&t);
assert(strview_str_eq(foo, "foo"));
tok_next(&t);
assert(!tok_end(&t));
strview_t bar = tok_get(&t);
assert(strview_str_eq(bar, "bar"));
tok_next(&t);
assert(!tok_end(&t));
strview_t baz = tok_get(&t);
assert(strview_str_eq(baz, "baz"));
tok_next(&t);
assert(tok_end(&t));
}
/// input that starts with a separator
static void test_leading(void) {
const char input[] = "/foo/bar";
tok_t t = tok(input, "/");
assert(!tok_end(&t));
strview_t empty = tok_get(&t);
assert(strview_str_eq(empty, ""));
tok_next(&t);
assert(!tok_end(&t));
strview_t foo = tok_get(&t);
assert(strview_str_eq(foo, "foo"));
tok_next(&t);
assert(!tok_end(&t));
strview_t bar = tok_get(&t);
assert(strview_str_eq(bar, "bar"));
tok_next(&t);
assert(tok_end(&t));
}
/// input that ends with a separator
static void test_trailing(void) {
const char input[] = "foo/bar/";
tok_t t = tok(input, "/");
assert(!tok_end(&t));
strview_t foo = tok_get(&t);
assert(strview_str_eq(foo, "foo"));
tok_next(&t);
assert(!tok_end(&t));
strview_t bar = tok_get(&t);
assert(strview_str_eq(bar, "bar"));
tok_next(&t);
assert(!tok_end(&t));
strview_t empty = tok_get(&t);
assert(strview_str_eq(empty, ""));
tok_next(&t);
assert(tok_end(&t));
}
/// check multiple separators are coalesced into one
static void test_coalesce(void) {
const char input[] = "foo//bar";
tok_t t = tok(input, "/");
assert(!tok_end(&t));
strview_t foo = tok_get(&t);
assert(strview_str_eq(foo, "foo"));
tok_next(&t);
assert(!tok_end(&t));
strview_t bar = tok_get(&t);
assert(strview_str_eq(bar, "bar"));
tok_next(&t);
assert(tok_end(&t));
}
/// tokenizing the empty string should produce one token
static void test_empty(void) {
const char input[] = "";
tok_t t = tok(input, "/");
assert(!tok_end(&t));
strview_t empty = tok_get(&t);
assert(strview_str_eq(empty, ""));
tok_next(&t);
assert(tok_end(&t));
}
/// multiple different separators
static void test_multiple_separators(void) {
const char input[] = "foo/bar:baz:/:qux";
tok_t t = tok(input, "/:");
assert(!tok_end(&t));
strview_t foo = tok_get(&t);
assert(strview_str_eq(foo, "foo"));
tok_next(&t);
assert(!tok_end(&t));
strview_t bar = tok_get(&t);
assert(strview_str_eq(bar, "bar"));
tok_next(&t);
assert(!tok_end(&t));
strview_t baz = tok_get(&t);
assert(strview_str_eq(baz, "baz"));
tok_next(&t);
assert(!tok_end(&t));
strview_t qux = tok_get(&t);
assert(strview_str_eq(qux, "qux"));
tok_next(&t);
assert(tok_end(&t));
}
/// input that consists solely of separators
static void test_only_separators(void) {
const char input[] = "//:g/";
tok_t t = tok(input, "/:g");
assert(!tok_end(&t));
strview_t empty = tok_get(&t);
assert(strview_str_eq(empty, ""));
tok_next(&t);
assert(!tok_end(&t));
strview_t empty2 = tok_get(&t);
assert(strview_str_eq(empty2, ""));
tok_next(&t);
assert(tok_end(&t));
}
int main(void) {
#define RUN(t) \
do { \
printf("running test_%s... ", #t); \
fflush(stdout); \
test_##t(); \
printf("OK\n"); \
} while (0)
RUN(basic);
RUN(no_usage);
RUN(multiple);
RUN(leading);
RUN(trailing);
RUN(coalesce);
RUN(empty);
RUN(multiple_separators);
RUN(only_separators);
#undef RUN
return EXIT_SUCCESS;
}
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