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#include <stddef.h>
#include <stdbool.h>
#include <string.h>
#include <errno.h>
#include <stdio.h>
#include <unistd.h>
#include "tap.h"
#include "text.h"
#include "text-util.h"
#include "util.h"
#ifndef BUFSIZ
#define BUFSIZ 1024
#endif
static bool insert(Text *txt, size_t pos, const char *data) {
return text_insert(txt, pos, data, strlen(data));
}
static bool isempty(Text *txt) {
return text_size(txt) == 0;
}
static bool compare_iterator_forward(Iterator *it, const char *data) {
char buf[BUFSIZ] = "", b;
while (text_iterator_byte_get(it, &b)) {
buf[it->pos] = b;
text_iterator_byte_next(it, NULL);
}
return strcmp(data, buf) == 0;
}
static bool compare_iterator_backward(Iterator *it, const char *data) {
char buf[BUFSIZ] = "", b;
while (text_iterator_byte_get(it, &b)) {
buf[it->pos] = b;
text_iterator_byte_prev(it, NULL);
}
return strcmp(data, buf) == 0;
}
static bool compare_iterator_both(Text *txt, const char *data) {
Iterator it = text_iterator_get(txt, 0);
bool forward = compare_iterator_forward(&it, data);
text_iterator_byte_prev(&it, NULL);
bool forward_backward = compare_iterator_backward(&it, data);
it = text_iterator_get(txt, text_size(txt));
bool backward = compare_iterator_backward(&it, data);
text_iterator_byte_next(&it, NULL);
bool backward_forward = compare_iterator_forward(&it, data);
return forward && backward && forward_backward && backward_forward;
}
static bool compare(Text *txt, const char *data) {
char buf[BUFSIZ];
size_t len = text_bytes_get(txt, 0, sizeof(buf)-1, buf);
buf[len] = '\0';
return len == strlen(data) && strcmp(buf, data) == 0 &&
compare_iterator_both(txt, data);
}
int main(int argc, char *argv[]) {
Text *txt;
plan_no_plan();
skip_if(TIS_INTERPRETER, 2, "I/O related") {
txt = text_load("/");
ok(txt == NULL && errno == EISDIR, "Opening directory");
if (access("/etc/shadow", F_OK) == 0) {
txt = text_load("/etc/shadow");
ok(txt == NULL && errno == EACCES, "Opening file without sufficient permissions");
}
}
txt = text_load(NULL);
ok(txt != NULL && isempty(txt), "Opening empty file");
Iterator it = text_iterator_get(txt, 0);
ok(text_iterator_valid(&it) && it.pos == 0, "Iterator on empty file");
char b = '_';
ok(text_iterator_byte_get(&it, &b) && b == '\0', "Read EOF from iterator of empty file");
b = '_';
ok(!text_iterator_byte_prev(&it, &b) && b == '_' &&
!text_iterator_valid(&it), "Moving iterator beyond start of file");
ok(!text_iterator_byte_get(&it, &b) && b == '_' &&
!text_iterator_valid(&it), "Access iterator beyond start of file");
ok(text_iterator_byte_next(&it, &b) && b == '\0' &&
text_iterator_valid(&it), "Moving iterator back from beyond start of file");
b = '_';
ok(text_iterator_byte_get(&it, &b) && b == '\0' &&
text_iterator_valid(&it), "Accessing iterator after moving back from beyond start of file");
b = '_';
ok(!text_iterator_byte_next(&it, &b) && b == '_' &&
!text_iterator_valid(&it), "Moving iterator beyond end of file");
ok(!text_iterator_byte_get(&it, &b) && b == '_' &&
!text_iterator_valid(&it), "Accessing iterator beyond end of file");
ok(text_iterator_byte_prev(&it, &b) && b == '\0' &&
text_iterator_valid(&it), "Moving iterator back from beyond end of file");
b = '_';
ok(text_iterator_byte_get(&it, &b) && b == '\0' &&
text_iterator_valid(&it), "Accessing iterator after moving back from beyond start of file");
ok(insert(txt, 1, "") && isempty(txt), "Inserting empty data");
ok(!insert(txt, 1, " ") && isempty(txt), "Inserting with invalid offset");
/* test cached insertion (i.e. in-place with only one piece) */
ok(insert(txt, 0, "3") && compare(txt, "3"), "Inserting into empty document (cached)");
ok(insert(txt, 0, "1") && compare(txt, "13"), "Inserting at begin (cached)");
ok(insert(txt, 1, "2") && compare(txt, "123"), "Inserting in middle (cached)");
ok(insert(txt, text_size(txt), "4") && compare(txt, "1234"), "Inserting at end (cached)");
ok(text_delete(txt, text_size(txt), 0) && compare(txt, "1234"), "Deleting empty range");
ok(!text_delete(txt, text_size(txt), 1) && compare(txt, "1234"), "Deleting invalid offset");
ok(!text_delete(txt, 0, text_size(txt)+5) && compare(txt, "1234"), "Deleting invalid range");
ok(text_undo(txt) == 0 && compare(txt, ""), "Reverting to empty document");
ok(text_redo(txt) != EPOS /* == text_size(txt) */ && compare(txt, "1234"), "Restoring previsous content");
/* test cached deletion (i.e. in-place with only one piece) */
ok(text_delete(txt, text_size(txt)-1, 1) && compare(txt, "123"), "Deleting at end (cached)");
ok(text_delete(txt, 1, 1) && compare(txt, "13"), "Deleting in middle (cached)");
ok(text_delete(txt, 0, 1) && compare(txt, "3"), "Deleting at begin (cached)");
ok(text_delete(txt, 0, 1) && compare(txt, ""), "Deleting to empty document (cached)");
/* test regular insertion (i.e. with multiple pieces) */
text_snapshot(txt);
ok(insert(txt, 0, "3") && compare(txt, "3"), "Inserting into empty document");
text_snapshot(txt);
ok(insert(txt, 0, "1") && compare(txt, "13"), "Inserting at begin");
text_snapshot(txt);
ok(insert(txt, 1, "2") && compare(txt, "123"), "Inserting in between");
text_snapshot(txt);
ok(insert(txt, text_size(txt), "46") && compare(txt, "12346"), "Inserting at end");
text_snapshot(txt);
ok(insert(txt, 4, "5") && compare(txt, "123456"), "Inserting in middle");
text_snapshot(txt);
ok(insert(txt, text_size(txt), "789") && compare(txt, "123456789"), "Inserting at end");
text_snapshot(txt);
ok(insert(txt, text_size(txt), "0") && compare(txt, "1234567890"), "Inserting at end");
/* test simple undo / redo oparations */
ok(text_undo(txt) != EPOS && compare(txt, "123456789"), "Undo 1");
ok(text_undo(txt) != EPOS && compare(txt, "123456"), "Undo 2");
ok(text_undo(txt) != EPOS && compare(txt, "12346"), "Undo 3");
ok(text_undo(txt) != EPOS && compare(txt, "123"), "Undo 3");
ok(text_undo(txt) != EPOS && compare(txt, "13"), "Undo 5");
ok(text_undo(txt) != EPOS && compare(txt, "3"), "Undo 6");
ok(text_undo(txt) != EPOS && compare(txt, ""), "Undo 6");
ok(text_redo(txt) != EPOS && compare(txt, "3"), "Redo 1");
ok(text_redo(txt) != EPOS && compare(txt, "13"), "Redo 2");
ok(text_redo(txt) != EPOS && compare(txt, "123"), "Redo 3");
ok(text_redo(txt) != EPOS && compare(txt, "12346"), "Redo 4");
ok(text_redo(txt) != EPOS && compare(txt, "123456"), "Redo 5");
ok(text_redo(txt) != EPOS && compare(txt, "123456789"), "Redo 6");
ok(text_redo(txt) != EPOS && compare(txt, "1234567890"), "Redo 7");
/* test regular deletion (i.e. with multiple pieces) */
ok(text_delete(txt, 8, 2) && compare(txt, "12345678"), "Deleting midway start");
text_undo(txt);
ok(text_delete(txt, 2, 6) && compare(txt, "1290"), "Deleting midway end");
text_undo(txt);
ok(text_delete(txt, 7, 1) && compare(txt, "123456790"), "Deleting midway both same piece");
text_undo(txt);
ok(text_delete(txt, 0, 5) && compare(txt, "67890"), "Deleting at begin");
text_undo(txt);
ok(text_delete(txt, 5, 5) && compare(txt, "12345"), "Deleting at end");
ok(text_mark_get(txt, text_mark_set(txt, -1)) == EPOS, "Mark invalid 1");
ok(text_mark_get(txt, text_mark_set(txt, text_size(txt)+1)) == EPOS, "Mark invalid 2");
const char *chunk = "new content";
const size_t delta = strlen(chunk);
size_t positions[] = { 0, 1, text_size(txt)/2, text_size(txt)-1 };
text_snapshot(txt);
for (size_t i = 0; i < LENGTH(positions); i++) {
size_t pos = positions[i];
size_t newpos = pos+delta;
Mark bof = text_mark_set(txt, 0);
ok(text_mark_get(txt, bof) == 0, "Mark at beginning of file");
Mark mof = text_mark_set(txt, pos);
ok(text_mark_get(txt, mof) == pos, "Mark in the middle");
Mark eof = text_mark_set(txt, text_size(txt));
ok(text_mark_get(txt, eof) == text_size(txt), "Mark at end of file");
ok(insert(txt, pos, chunk), "Insert before mark");
ok(text_mark_get(txt, bof) == ((pos == 0) ? delta : 0), "Mark at beginning adjusted 1");
ok(text_mark_get(txt, mof) == pos+delta, "Mark in the middle adjusted 1");
ok(text_mark_get(txt, eof) == text_size(txt), "Mark at end adjusted 1");
ok(insert(txt, pos+delta+1, chunk), "Insert after mark");
ok(text_mark_get(txt, bof) == ((pos == 0) ? delta : 0), "Mark at beginning adjusted 2");
ok(text_mark_get(txt, mof) == pos+delta, "Mark in the middle adjusted 2");
ok(text_mark_get(txt, eof) == text_size(txt), "Mark at end adjusted 2");
text_snapshot(txt);
ok(text_delete(txt, pos+delta, 1), "Deleting mark");
ok(text_mark_get(txt, mof) == EPOS, "Mark in the middle deleted");
text_undo(txt);
ok(text_mark_get(txt, mof) == pos+delta, "Mark restored");
text_undo(txt);
}
text_free(txt);
return exit_status();
}
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