#include "ftk.h"
#include "ftk_text_buffer.h"

void english_test(void)
{
	int i = 0;
	FtkTextBuffer* thiz = ftk_text_buffer_create(6);
	assert(ftk_text_buffer_insert(thiz, 0, "b", -1) == RET_OK);
	assert(strcmp(thiz->buffer, "b") == 0);
	assert(ftk_text_buffer_insert(thiz, 1, "c", -1) == RET_OK);
	assert(strcmp(thiz->buffer, "bc") == 0);
	assert(ftk_text_buffer_insert(thiz, 0, "a", -1) == RET_OK);
	assert(strcmp(thiz->buffer, "abc") == 0);
	assert(ftk_text_buffer_insert(thiz, 4, "a", -1) != RET_OK);
	assert(strcmp(thiz->buffer, "abc") == 0);
	assert(ftk_text_buffer_insert(thiz, 3, "defg", -1) == RET_OK);
	assert(strcmp(thiz->buffer, "abcdefg") == 0);

	assert(ftk_text_buffer_delete_chars(thiz, 0, 1) == RET_OK);
	assert(strcmp(thiz->buffer, "bcdefg") == 0);
	
	assert(ftk_text_buffer_delete_chars(thiz, 0, 2) == RET_OK);
	assert(strcmp(thiz->buffer, "defg") == 0);
	
	assert(ftk_text_buffer_delete_chars(thiz, 1, 2) == RET_OK);
	assert(strcmp(thiz->buffer, "dg") == 0);
	
	assert(ftk_text_buffer_delete_chars(thiz, 1, -1) == RET_OK);
	assert(strcmp(thiz->buffer, "g") == 0);
	assert(ftk_text_buffer_delete_chars(thiz, 1, -1) == RET_OK);
	assert(strcmp(thiz->buffer, "") == 0);

	ftk_text_buffer_reset(thiz);
	assert(thiz->length == 0);

	for(i = 0; i < 1000; i++)
	{
		assert(strcmp(ftk_text_buffer_append_string(thiz, "123"), "123") == 0);
		assert(thiz->length == (i+1) * 4);
	}
	ftk_text_buffer_destroy(thiz);

	return;
}

void chinese_test(void)
{
	int offset = 0;
	FtkTextBuffer* thiz = ftk_text_buffer_create(6);
	assert(ftk_text_buffer_insert(thiz, 0, "??????", -1) == RET_OK);
	offset  = ftk_text_buffer_chars_bytes(thiz, 0, 2);
	assert(ftk_text_buffer_delete_chars(thiz, offset, -2) == RET_OK);
	assert(strcmp(thiz->buffer, "????") == 0);
	
	assert(ftk_text_buffer_delete_chars(thiz, 0, 2) == RET_OK);
	assert(strcmp(thiz->buffer, "??") == 0);
	
	assert(ftk_text_buffer_delete_chars(thiz, 0, 1) == RET_OK);
	assert(strcmp(thiz->buffer, "?") == 0);
	
	offset  = ftk_text_buffer_chars_bytes(thiz, 0, 1);
	assert(ftk_text_buffer_delete_chars(thiz, offset, -1) == RET_OK);
	assert(strcmp(thiz->buffer, "") == 0);

	ftk_text_buffer_destroy(thiz);

	return;
}

int main(int argc, char* argv[])
{
	ftk_set_allocator(ftk_allocator_default_create());

	english_test();
	chinese_test();

	return 0;
}