diff options
Diffstat (limited to 'core/text.c')
| -rw-r--r-- | core/text.c | 119 |
1 files changed, 119 insertions, 0 deletions
diff --git a/core/text.c b/core/text.c new file mode 100644 index 0000000..3da647a --- /dev/null +++ b/core/text.c @@ -0,0 +1,119 @@ +#include <ccan/tap/tap.h> +#include <stddef.h> +#include <stdbool.h> +#include <string.h> +#include <errno.h> +#include <stdio.h> +#include <unistd.h> +#include "text.h" +#include "text-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 char *content(Text *txt) { + static char buf[BUFSIZ]; + size_t len = text_bytes_get(txt, 0, sizeof(buf)-1, buf); + buf[len] = '\0'; + return buf; +} + +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; +} + +int main(int argc, char *argv[]) { + Text *txt; + + plan_no_plan(); + + 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"); + + 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"); + + return exit_status(); +} |