#include "../src/util.c"

#include <assert.h>

#include "../src/testing.h"
#include "slurp.h"



static int
test_slurp(void) {
	int rc = -1;

	test_start("slurp()");

	char *expected  = NULL;
	char *given     = NULL;
	size_t givenlen = 0U;

	FILE *file = fopen("/dev/null", "w");
	if (file == NULL) {
		logerr("fopen(\"/dev/null\", \"w\")");
		goto out;
	}
	logerr_set_stream(file);

	{
		testing("non-existent file");

		const char filename[] = __FILE__ ".non-existant";
		const int ret_expected = slurp_for_tests(filename, &expected);
		const int ret_given    = slurp(filename, &givenlen, &given);

		assert(expected == NULL);
		assert(given    == NULL);
		assert(givenlen == 0U);
		assert(!!ret_given == !!ret_expected);

		test_ok();
	}
	{
		testing("slurp() == slurp_for_tests()");

		if (slurp(__FILE__, &givenlen, &given)) {
			logerr("slurp()");
			goto out;
		}

		if (slurp_for_tests(__FILE__, &expected)) {
			logerr("slurp_for_tests()");
			goto out;
		}

		assert(expected != NULL);
		assert(given    != NULL);
		assert(givenlen == strlen(given));
		assert(strcmp(given, expected) == 0);

		free(expected);
		free(given);
		expected = NULL;
		given = NULL;

		test_ok();
	}

	rc = 0;
out:
	logerr_set_stream(NULL);
	if (expected != NULL) {
		free(expected);
		expected = NULL;
	}
	if (given != NULL) {
		free(given);
		given = NULL;
	}
	if (file != NULL) {
		if (fclose(file)) {
			logerr("fclose(file)");
			rc = -1;
		}
	}
	return rc;
}


int
main(void) {
	int rc = EXIT_FAILURE;

	if (test_slurp()) {
		logerr("test_slurp()");
		goto out;
	}

	rc = EXIT_SUCCESS;
out:
	return rc;
}