boxes/utest/remove_test.c

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/*
* boxes - Command line filter to draw/remove ASCII boxes around text
* Copyright (c) 1999-2023 Thomas Jensen and the boxes contributors
*
* This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public
* License, version 3, as published by the Free Software Foundation.
* This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied
* warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
* details.
* You should have received a copy of the GNU General Public License along with this program.
* If not, see <https://www.gnu.org/licenses/>.
*
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
*/
/*
* Unit tests of the 'remove' module
*/
#include "config.h"
#include <setjmp.h>
#include <stdarg.h>
#include <stddef.h>
#include <unistr.h>
#include <cmocka.h>
#include "boxes.h"
#include "unicode.h"
#include "tools.h"
#include "remove_test.h"
#include "global_mock.h"
#include "utest_tools.h"
void test_match_outer_shape_null(void **state)
{
UNUSED(state);
bxstr_t *input_line = bxs_from_ascii(" xx x xx ");
bxstr_t *shape_line = bxs_from_ascii(" xx ");
match_result_t *actual = match_outer_shape(BLEF, NULL, shape_line);
assert_null(actual);
actual = match_outer_shape(BLEF, input_line, NULL);
assert_null(actual);
bxs_free(input_line);
bxs_free(shape_line);
}
void test_match_outer_shape_left_anchored(void **state)
{
UNUSED(state);
bxstr_t *input_line = bxs_from_ascii(" xx x xx ");
bxstr_t *shape_line = bxs_from_ascii(" xx ");
match_result_t *actual = match_outer_shape(BLEF, input_line, shape_line);
uint32_t *expected_p = bxs_first_char_ptr(input_line, 3);
assert_non_null(actual);
assert_int_equal(3, (int) actual->p_idx);
assert_int_equal(0, u32_strcmp(expected_p, actual->p));
assert_int_equal(4, actual->len);
assert_int_equal(0, actual->shiftable);
BFREE(actual);
bxs_free(input_line);
bxs_free(shape_line);
}
void test_match_outer_shape_left_shiftable(void **state)
{
UNUSED(state);
bxstr_t *input_line = bxs_from_ascii(" xx x xx ");
bxstr_t *shape_line = bxs_from_ascii(" ");
match_result_t *actual = match_outer_shape(BLEF, input_line, shape_line);
assert_non_null(actual);
assert_int_equal(0, (int) actual->p_idx);
assert_int_equal(0, u32_strcmp(input_line->memory, actual->p));
assert_int_equal(0, actual->len);
assert_int_equal(1, actual->shiftable);
BFREE(actual);
bxs_free(input_line);
bxs_free(shape_line);
}
void test_match_outer_shape_left_shortened(void **state)
{
UNUSED(state);
bxstr_t *input_line = bxs_from_ascii(" xx x xx ");
bxstr_t *shape_line = bxs_from_ascii(" xx"); /* length 6 */
match_result_t *actual = match_outer_shape(BLEF, input_line, shape_line);
assert_non_null(actual);
assert_int_equal(0, (int) actual->p_idx);
assert_int_equal(0, u32_strcmp(input_line->memory, actual->p));
assert_int_equal(4, actual->len); /* only 4 characters matched */
assert_int_equal(0, actual->shiftable);
BFREE(actual);
bxs_free(input_line);
bxs_free(shape_line);
}
void test_match_outer_shape_left_not_found(void **state)
{
UNUSED(state);
bxstr_t *input_line = bxs_from_ascii(" xx x xx ");
bxstr_t *shape_line = bxs_from_ascii(" ---");
match_result_t *actual = match_outer_shape(BLEF, input_line, shape_line);
assert_null(actual);
bxs_free(input_line);
bxs_free(shape_line);
}
void test_match_outer_shape_left_too_far_in(void **state)
{
UNUSED(state);
bxstr_t *input_line = bxs_from_ascii(" xx M xx ");
bxstr_t *shape_line = bxs_from_ascii("x M");
match_result_t *actual = match_outer_shape(BLEF, input_line, shape_line);
assert_null(actual);
bxs_free(input_line);
bxs_free(shape_line);
}
void test_match_outer_shape_left_edge(void **state)
{
UNUSED(state);
bxstr_t *input_line = bxs_from_ascii(" x yy");
bxstr_t *shape_line = bxs_from_ascii("x");
match_result_t *actual = match_outer_shape(BLEF, input_line, shape_line);
uint32_t *expected_p = bxs_first_char_ptr(input_line, 3);
assert_non_null(actual);
assert_int_equal(3, (int) actual->p_idx);
assert_int_equal(0, u32_strcmp(expected_p, actual->p));
assert_int_equal(1, actual->len);
assert_int_equal(0, actual->shiftable);
BFREE(actual);
bxs_free(input_line);
bxs_free(shape_line);
}
void test_match_outer_shape_right_anchored(void **state)
{
UNUSED(state);
bxstr_t *input_line = bxs_from_ascii(" xx x xx ");
bxstr_t *shape_line = bxs_from_ascii(" xx ");
match_result_t *actual = match_outer_shape(BRIG, input_line, shape_line);
uint32_t *expected_p = bxs_first_char_ptr(input_line, 8);
assert_non_null(actual);
assert_int_equal(8, (int) actual->p_idx);
assert_int_equal(0, u32_strcmp(expected_p, actual->p));
assert_int_equal(4, actual->len);
assert_int_equal(0, actual->shiftable);
BFREE(actual);
bxs_free(input_line);
bxs_free(shape_line);
}
void test_match_outer_shape_right_shiftable(void **state)
{
UNUSED(state);
bxstr_t *input_line = bxs_from_ascii(" xx x xx ");
bxstr_t *shape_line = bxs_from_ascii(" ");
match_result_t *actual = match_outer_shape(BRIG, input_line, shape_line);
assert_non_null(actual);
assert_int_equal(15, (int) actual->p_idx);
assert_int_equal(1, is_char_at(actual->p, 0, char_nul));
assert_int_equal(0, actual->len);
assert_int_equal(1, actual->shiftable);
BFREE(actual);
bxs_free(input_line);
bxs_free(shape_line);
}
void test_match_outer_shape_right_shortened(void **state)
{
UNUSED(state);
bxstr_t *input_line = bxs_from_ascii(" xx x xx ");
bxstr_t *shape_line = bxs_from_ascii("xx "); /* length 6 */
match_result_t *actual = match_outer_shape(BRIG, input_line, shape_line);
uint32_t *expected_p = bxs_first_char_ptr(input_line, 7);
assert_non_null(actual);
assert_int_equal(7, (int) actual->p_idx);
assert_int_equal(0, u32_strcmp(expected_p, actual->p));
assert_int_equal(4, actual->len); /* only 4 characters matched */
assert_int_equal(0, actual->shiftable);
BFREE(actual);
bxs_free(input_line);
bxs_free(shape_line);
}
void test_match_outer_shape_right_not_found(void **state)
{
UNUSED(state);
bxstr_t *input_line = bxs_from_ascii(" xx x xx ");
bxstr_t *shape_line = bxs_from_ascii("--- ");
match_result_t *actual = match_outer_shape(BRIG, input_line, shape_line);
assert_null(actual);
bxs_free(input_line);
bxs_free(shape_line);
}
void test_match_outer_shape_right_too_far_in(void **state)
{
UNUSED(state);
bxstr_t *input_line = bxs_from_ascii(" xx M xx ");
bxstr_t *shape_line = bxs_from_ascii("M x");
match_result_t *actual = match_outer_shape(BRIG, input_line, shape_line);
assert_null(actual);
bxs_free(input_line);
bxs_free(shape_line);
}
void test_match_outer_shape_right_shortened2(void **state)
{
UNUSED(state);
bxstr_t *input_line = bxs_from_ascii(" x Y");
bxstr_t *shape_line = bxs_from_ascii("Y ");
match_result_t *actual = match_outer_shape(BRIG, input_line, shape_line);
uint32_t *expected_p = bxs_first_char_ptr(input_line, 4);
assert_non_null(actual);
assert_int_equal(4, (int) actual->p_idx);
assert_int_equal(0, u32_strcmp(expected_p, actual->p));
assert_int_equal(1, actual->len);
assert_int_equal(0, actual->shiftable);
BFREE(actual);
bxs_free(input_line);
bxs_free(shape_line);
}
void test_match_outer_shape_right_edge(void **state)
{
UNUSED(state);
bxstr_t *input_line = bxs_from_ascii("x");
bxstr_t *shape_line = bxs_from_ascii("x");
match_result_t *actual = match_outer_shape(BRIG, input_line, shape_line);
assert_non_null(actual);
assert_int_equal(0, (int) actual->p_idx);
assert_int_equal(0, u32_strcmp(input_line->memory, actual->p));
assert_int_equal(1, actual->len);
assert_int_equal(0, actual->shiftable);
BFREE(actual);
bxs_free(input_line);
bxs_free(shape_line);
}
void test_shorten_preferleft_allowall(void **state)
{
UNUSED(state);
shape_line_ctx_t *shape_line_ctx = (shape_line_ctx_t *) calloc(1, sizeof(shape_line_ctx_t));
shape_line_ctx->text = bxs_from_ascii(" abc ");
size_t quality = shape_line_ctx->text->num_chars;
uint32_t *actual = shorten(shape_line_ctx, &quality, 1, 1, 1);
uint32_t *expected = u32_strconv_from_arg(" abc ", "ASCII");
assert_int_equal(6, (int) quality);
assert_int_equal(0, u32_strcmp(expected, actual));
BFREE(actual);
BFREE(expected);
actual = shorten(shape_line_ctx, &quality, 1, 1, 1);
expected = u32_strconv_from_arg("abc ", "ASCII");
assert_int_equal(5, (int) quality);
assert_int_equal(0, u32_strcmp(expected, actual));
BFREE(actual);
BFREE(expected);
actual = shorten(shape_line_ctx, &quality, 1, 1, 1);
expected = u32_strconv_from_arg("abc ", "ASCII");
assert_int_equal(4, (int) quality);
assert_int_equal(0, u32_strcmp(expected, actual));
BFREE(actual);
BFREE(expected);
actual = shorten(shape_line_ctx, &quality, 1, 1, 1);
expected = u32_strconv_from_arg("abc", "ASCII");
assert_int_equal(3, (int) quality);
assert_int_equal(0, u32_strcmp(expected, actual));
BFREE(actual);
BFREE(expected);
actual = shorten(shape_line_ctx, &quality, 1, 1, 1);
assert_int_equal(3, (int) quality);
assert_null(actual);
BFREE(actual);
bxs_free(shape_line_ctx->text);
BFREE(shape_line_ctx);
}
void test_shorten_preferleft_allowright(void **state)
{
UNUSED(state);
shape_line_ctx_t *shape_line_ctx = (shape_line_ctx_t *) calloc(1, sizeof(shape_line_ctx_t));
shape_line_ctx->text = bxs_from_ascii(" abc ");
size_t quality = shape_line_ctx->text->num_chars;
uint32_t *actual = shorten(shape_line_ctx, &quality, 1, 0, 1);
uint32_t *expected = u32_strconv_from_arg(" abc ", "ASCII");
assert_int_equal(6, (int) quality);
assert_int_equal(0, u32_strcmp(expected, actual));
BFREE(actual);
BFREE(expected);
actual = shorten(shape_line_ctx, &quality, 1, 0, 1);
expected = u32_strconv_from_arg(" abc", "ASCII");
assert_int_equal(5, (int) quality);
assert_int_equal(0, u32_strcmp(expected, actual));
BFREE(actual);
BFREE(expected);
actual = shorten(shape_line_ctx, &quality, 1, 0, 1);
assert_int_equal(5, (int) quality);
assert_null(actual);
BFREE(actual);
bxs_free(shape_line_ctx->text);
BFREE(shape_line_ctx);
}
void test_shorten_preferleft_allowleft(void **state)
{
UNUSED(state);
shape_line_ctx_t *shape_line_ctx = (shape_line_ctx_t *) calloc(1, sizeof(shape_line_ctx_t));
shape_line_ctx->text = bxs_from_ascii(" abc ");
size_t quality = shape_line_ctx->text->num_chars;
uint32_t *actual = shorten(shape_line_ctx, &quality, 1, 1, 0);
uint32_t *expected = u32_strconv_from_arg(" abc ", "ASCII");
assert_int_equal(6, (int) quality);
assert_int_equal(0, u32_strcmp(expected, actual));
BFREE(actual);
BFREE(expected);
actual = shorten(shape_line_ctx, &quality, 1, 1, 0);
expected = u32_strconv_from_arg("abc ", "ASCII");
assert_int_equal(5, (int) quality);
assert_int_equal(0, u32_strcmp(expected, actual));
BFREE(actual);
BFREE(expected);
actual = shorten(shape_line_ctx, &quality, 1, 1, 0);
assert_int_equal(5, (int) quality);
assert_null(actual);
BFREE(actual);
bxs_free(shape_line_ctx->text);
BFREE(shape_line_ctx);
}
void test_shorten_preferright_allowall(void **state)
{
UNUSED(state);
shape_line_ctx_t *shape_line_ctx = (shape_line_ctx_t *) calloc(1, sizeof(shape_line_ctx_t));
shape_line_ctx->text = bxs_from_ascii(" abc ");
size_t quality = shape_line_ctx->text->num_chars;
uint32_t *actual = shorten(shape_line_ctx, &quality, 0, 1, 1);
uint32_t *expected = u32_strconv_from_arg(" abc ", "ASCII");
assert_int_equal(6, (int) quality);
assert_int_equal(0, u32_strcmp(expected, actual));
BFREE(actual);
BFREE(expected);
actual = shorten(shape_line_ctx, &quality, 0, 1, 1);
expected = u32_strconv_from_arg(" abc", "ASCII");
assert_int_equal(5, (int) quality);
assert_int_equal(0, u32_strcmp(expected, actual));
BFREE(actual);
BFREE(expected);
actual = shorten(shape_line_ctx, &quality, 0, 1, 1);
expected = u32_strconv_from_arg(" abc", "ASCII");
assert_int_equal(4, (int) quality);
assert_int_equal(0, u32_strcmp(expected, actual));
BFREE(actual);
BFREE(expected);
actual = shorten(shape_line_ctx, &quality, 0, 1, 1);
expected = u32_strconv_from_arg("abc", "ASCII");
assert_int_equal(3, (int) quality);
assert_int_equal(0, u32_strcmp(expected, actual));
BFREE(actual);
BFREE(expected);
actual = shorten(shape_line_ctx, &quality, 0, 1, 1);
assert_int_equal(3, (int) quality);
assert_null(actual);
BFREE(actual);
bxs_free(shape_line_ctx->text);
BFREE(shape_line_ctx);
}
void test_shorten_corner_cases(void **state)
{
UNUSED(state);
shape_line_ctx_t *shape_line_ctx = (shape_line_ctx_t *) calloc(1, sizeof(shape_line_ctx_t));
shape_line_ctx->text = bxs_from_ascii(" abc ");
size_t quality = shape_line_ctx->text->num_chars;
uint32_t *actual = shorten(shape_line_ctx, &quality, 0, 0, 0);
assert_int_equal(7, (int) quality);
assert_null(actual);
actual = shorten(NULL, &quality, 1, 1, 0);
assert_int_equal(7, (int) quality);
assert_null(actual);
quality = 100; /* > 7 */
actual = shorten(shape_line_ctx, &quality, 0, 0, 0);
assert_int_equal(100, (int) quality);
assert_null(actual);
actual = shorten(shape_line_ctx, NULL, 0, 0, 1);
assert_null(actual); /* quality == NULL */
quality = 7;
bxs_free(shape_line_ctx->text);
shape_line_ctx->text = NULL;
actual = shorten(shape_line_ctx, &quality, 0, 0, 1);
assert_null(actual); /* text == NULL */
BFREE(shape_line_ctx);
}
static shape_line_ctx_t *build_shapes_relevant_sunny()
{
shape_line_ctx_t *shapes_relevant = (shape_line_ctx_t *) calloc(SHAPES_PER_SIDE, sizeof(shape_line_ctx_t));
shapes_relevant[0].empty = 0;
shapes_relevant[0].text = bxs_from_ascii("WCORNER");
shapes_relevant[0].elastic = 0;
shapes_relevant[1].empty = 0;
shapes_relevant[1].text = bxs_from_ascii("-");
shapes_relevant[1].elastic = 1;
shapes_relevant[2].empty = 0;
shapes_relevant[2].text = bxs_from_ascii("middle");
shapes_relevant[2].elastic = 0;
shapes_relevant[3].empty = 0;
shapes_relevant[3].text = bxs_from_ascii("-");
shapes_relevant[3].elastic = 1;
shapes_relevant[4].empty = 0;
shapes_relevant[4].text = bxs_from_ascii("ECORNER");
shapes_relevant[4].elastic = 0;
return shapes_relevant;
}
static void free_shapes_relevant(shape_line_ctx_t *shapes_relevant)
{
for (size_t i = 0; i < SHAPES_PER_SIDE; i++) {
bxs_free(shapes_relevant[i].text);
}
BFREE(shapes_relevant);
}
void test_hmm_sunny_day(void **state)
{
UNUSED(state);
shape_line_ctx_t *shapes_relevant = build_shapes_relevant_sunny();
uint32_t *input_line = u32_strconv_from_arg(" WCORNER-----middle-----ECORNER ", "ASCII");
uint32_t *cur_pos = input_line + 9; /* '-' after WCORNER */
uint32_t *end_pos = input_line + 25; /* 'E' of ECORNER */
int actual = hmm(shapes_relevant, cur_pos, 0, 1, end_pos);
assert_int_equal(1, actual);
free_shapes_relevant(shapes_relevant);
BFREE(input_line);
}
void test_hmm_sunny_day_short(void **state)
{
UNUSED(state);
shape_line_ctx_t *shapes_relevant = build_shapes_relevant_sunny();
uint32_t *input_line = u32_strconv_from_arg("WCORNER-middle-", "ASCII");
uint32_t *cur_pos = input_line + 7; /* '-' after WCORNER */
uint32_t *end_pos = input_line + 15; /* NUL */
int actual = hmm(shapes_relevant, cur_pos, 0, 1, end_pos);
assert_int_equal(1, actual);
free_shapes_relevant(shapes_relevant);
BFREE(input_line);
}
void test_hmm_missing_elastic_nne(void **state)
{
UNUSED(state);
shape_line_ctx_t *shapes_relevant = build_shapes_relevant_sunny();
uint32_t *input_line = u32_strconv_from_arg("WCORNER---middleECORNER", "ASCII");
uint32_t *cur_pos = input_line + 7; /* '-' after WCORNER */
uint32_t *end_pos = input_line + 16; /* 'E' of ECORNER */
int actual = hmm(shapes_relevant, cur_pos, 0, 1, end_pos);
assert_int_equal(0, actual); /* should fail because NNE shape is not present */
free_shapes_relevant(shapes_relevant);
BFREE(input_line);
}
void test_hmm_invalid_input(void **state)
{
UNUSED(state);
shape_line_ctx_t *shapes_relevant = build_shapes_relevant_sunny();
uint32_t *input_line = u32_strconv_from_arg("not_used", "ASCII");
uint32_t *cur_pos = input_line + 5;
uint32_t *end_pos = input_line + 2; /* before cur_pos, which is an error */
int actual = hmm(shapes_relevant, cur_pos, 0, 1, end_pos);
assert_int_equal(0, actual); /* should fail because cur_pos > end_pos */
free_shapes_relevant(shapes_relevant);
BFREE(input_line);
}
static shape_line_ctx_t *build_shapes_relevant_empty_r()
{
shape_line_ctx_t *shapes_relevant = (shape_line_ctx_t *) calloc(SHAPES_PER_SIDE, sizeof(shape_line_ctx_t));
shapes_relevant[0].empty = 0;
shapes_relevant[0].text = bxs_from_ascii("WCORNER");
shapes_relevant[0].elastic = 0;
shapes_relevant[1].empty = 1;
shapes_relevant[1].text = NULL;
shapes_relevant[1].elastic = 0;
shapes_relevant[2].empty = 0;
shapes_relevant[2].text = bxs_from_ascii("xx");
shapes_relevant[2].elastic = 1;
shapes_relevant[3].empty = 1;
shapes_relevant[3].text = NULL;
shapes_relevant[3].elastic = 0;
shapes_relevant[4].empty = 1;
shapes_relevant[4].text = NULL;
shapes_relevant[4].elastic = 0;
return shapes_relevant;
}
void test_hmm_empty_shapes_success(void **state)
{
UNUSED(state);
shape_line_ctx_t *shapes_relevant = build_shapes_relevant_empty_r();
uint32_t *input_line = u32_strconv_from_arg(" WCORNERxxxxxxxx", "ASCII");
uint32_t *cur_pos = input_line + 8; /* first 'x' */
uint32_t *end_pos = input_line + 16; /* NUL */
int actual = hmm(shapes_relevant, cur_pos, 0, 1, end_pos);
assert_int_equal(1, actual); /* matches */
free_shapes_relevant(shapes_relevant);
BFREE(input_line);
}
static shape_line_ctx_t *build_shapes_relevant_backtrack()
{
shape_line_ctx_t *shapes_relevant = (shape_line_ctx_t *) calloc(SHAPES_PER_SIDE, sizeof(shape_line_ctx_t));
shapes_relevant[0].empty = 0;
shapes_relevant[0].text = bxs_from_ascii("WCORNER");
shapes_relevant[0].elastic = 0;
shapes_relevant[1].empty = 0;
shapes_relevant[1].text = bxs_from_ascii("-");
shapes_relevant[1].elastic = 1;
shapes_relevant[2].empty = 0;
shapes_relevant[2].text = bxs_from_ascii("--middle--");
shapes_relevant[2].elastic = 0;
shapes_relevant[3].empty = 0;
shapes_relevant[3].text = bxs_from_ascii("-");
shapes_relevant[3].elastic = 1;
shapes_relevant[4].empty = 1;
shapes_relevant[4].text = NULL;
shapes_relevant[4].elastic = 0;
return shapes_relevant;
}
void test_hmm_backtracking(void **state)
{
UNUSED(state);
shape_line_ctx_t *shapes_relevant = build_shapes_relevant_backtrack();
uint32_t *input_line = u32_strconv_from_arg(" WCORNER-----middle-----", "ASCII");
uint32_t *cur_pos = input_line + 8; /* first '-' */
uint32_t *end_pos = input_line + 24; /* NUL */
int actual = hmm(shapes_relevant, cur_pos, 0, 1, end_pos);
assert_int_equal(1, actual); /* matches, elastic NNW doesn't eat part of N shape */
free_shapes_relevant(shapes_relevant);
BFREE(input_line);
}
static shape_line_ctx_t *build_shapes_relevant_shiftable()
{
shape_line_ctx_t *shapes_relevant = (shape_line_ctx_t *) calloc(SHAPES_PER_SIDE, sizeof(shape_line_ctx_t));
shapes_relevant[0].empty = 0; /* maybe there is text in a different shape line */
shapes_relevant[0].text = bxs_from_ascii(" ");
shapes_relevant[0].elastic = 0;
shapes_relevant[1].empty = 1;
shapes_relevant[1].text = bxs_from_ascii(" ");
shapes_relevant[1].elastic = 1;
shapes_relevant[2].empty = 0;
shapes_relevant[2].text = bxs_from_ascii(" NORTH ");
shapes_relevant[2].elastic = 0;
shapes_relevant[3].empty = 1;
shapes_relevant[3].text = NULL;
shapes_relevant[3].elastic = 1;
shapes_relevant[4].empty = 1;
shapes_relevant[4].text = NULL;
shapes_relevant[4].elastic = 0;
return shapes_relevant;
}
void test_hmm_shiftable(void **state)
{
UNUSED(state);
shape_line_ctx_t *shapes_relevant = build_shapes_relevant_shiftable();
uint32_t *input_line = u32_strconv_from_arg(" NORTH ", "ASCII");
uint32_t *cur_pos = input_line; /* first character */
uint32_t *end_pos = input_line + 17; /* NUL */
int actual = hmm(shapes_relevant, cur_pos, 1, 1, end_pos);
assert_int_equal(1, actual); /* matches */
free_shapes_relevant(shapes_relevant);
BFREE(input_line);
}
void test_hmm_shortened(void **state)
{
UNUSED(state);
shape_line_ctx_t *shapes_relevant = build_shapes_relevant_shiftable();
uint32_t *input_line = u32_strconv_from_arg("NORTH", "ASCII");
uint32_t *cur_pos = input_line; /* first character */
uint32_t *end_pos = input_line + 5; /* NUL */
int actual = hmm(shapes_relevant, cur_pos, 1, 1, end_pos);
assert_int_equal(1, actual); /* matches, because " NORTH " can be shortened because shiftable */
free_shapes_relevant(shapes_relevant);
BFREE(input_line);
}
static shape_line_ctx_t *build_shapes_relevant_shiftable_left()
{
shape_line_ctx_t *shapes_relevant = (shape_line_ctx_t *) calloc(SHAPES_PER_SIDE, sizeof(shape_line_ctx_t));
shapes_relevant[0].empty = 0; /* maybe there is text in a different shape line */
shapes_relevant[0].text = bxs_from_ascii(" ");
shapes_relevant[0].elastic = 0;
shapes_relevant[1].empty = 1;
shapes_relevant[1].text = bxs_from_ascii(" ");
shapes_relevant[1].elastic = 1;
shapes_relevant[2].empty = 0;
shapes_relevant[2].text = bxs_from_ascii(" NORTH ");
shapes_relevant[2].elastic = 0;
shapes_relevant[3].empty = 1;
shapes_relevant[3].text = NULL;
shapes_relevant[3].elastic = 1;
shapes_relevant[4].empty = 0;
shapes_relevant[4].text = bxs_from_ascii("ECORNER ");
shapes_relevant[4].elastic = 0;
return shapes_relevant;
}
void test_hmm_shortened_right_fail(void **state)
{
UNUSED(state);
shape_line_ctx_t *shapes_relevant = build_shapes_relevant_shiftable_left();
uint32_t *input_line = u32_strconv_from_arg("NORTH ECORNER ", "ASCII");
uint32_t *cur_pos = input_line; /* first character */
uint32_t *end_pos = input_line + 6; /* 'E' of "ECORNER" */
int actual = hmm(shapes_relevant, cur_pos, 1, 1, end_pos);
assert_int_equal(0, actual); /* does not match */
/* because " NORTH " cannot be shortened right b/c right not shiftable */
free_shapes_relevant(shapes_relevant);
BFREE(input_line);
}
void test_hmm_shortened_right(void **state)
{
UNUSED(state);
shape_line_ctx_t *shapes_relevant = build_shapes_relevant_shiftable_left();
uint32_t *input_line = u32_strconv_from_arg("NORTH ECORNER", "ASCII");
uint32_t *cur_pos = input_line; /* first character */
uint32_t *end_pos = input_line + 7; /* 'E' of "ECORNER" */
int actual = hmm(shapes_relevant, cur_pos, 1, 1, end_pos);
assert_int_equal(1, actual); /* matches */
/* because " NORTH " can be shortened left, and ECORNER can be shortened right */
free_shapes_relevant(shapes_relevant);
BFREE(input_line);
}
static shape_line_ctx_t *build_shapes_relevant_blank()
{
shape_line_ctx_t *shapes_relevant = (shape_line_ctx_t *) calloc(SHAPES_PER_SIDE, sizeof(shape_line_ctx_t));
shapes_relevant[0].empty = 0; /* maybe there is text in a different shape line */
shapes_relevant[0].text = bxs_from_ascii(" ");
shapes_relevant[0].elastic = 0;
shapes_relevant[1].empty = 0;
shapes_relevant[1].text = bxs_from_ascii(" ");
shapes_relevant[1].elastic = 1;
shapes_relevant[2].empty = 0;
shapes_relevant[2].text = bxs_from_ascii(" ");
shapes_relevant[2].elastic = 0;
shapes_relevant[3].empty = 1;
shapes_relevant[3].text = bxs_from_ascii(" ");
shapes_relevant[3].elastic = 1;
shapes_relevant[4].empty = 1;
shapes_relevant[4].text = NULL;
shapes_relevant[4].elastic = 0;
return shapes_relevant;
}
void test_hmm_blank_shiftable(void **state)
{
UNUSED(state);
shape_line_ctx_t *shapes_relevant = build_shapes_relevant_blank();
uint32_t *input_line = u32_strconv_from_arg(" ", "ASCII");
uint32_t *cur_pos = input_line; /* first character */
uint32_t *end_pos = input_line + 6; /* NUL */
int actual = hmm(shapes_relevant, cur_pos, 1, 1, end_pos);
assert_int_equal(1, actual); /* matches */
free_shapes_relevant(shapes_relevant);
BFREE(input_line);
}
void test_hmm_blank(void **state)
{
UNUSED(state);
shape_line_ctx_t *shapes_relevant = build_shapes_relevant_blank();
uint32_t *input_line = u32_strconv_from_arg("WCORNER ECORNER", "ASCII");
uint32_t *cur_pos = input_line + 7; /* first blank */
uint32_t *end_pos = input_line + 14; /* 'E' of "ECORNER" */
int actual = hmm(shapes_relevant, cur_pos, 0, 1, end_pos);
assert_int_equal(1, actual); /* matches */
free_shapes_relevant(shapes_relevant);
BFREE(input_line);
}
/* vim: set cindent sw=4: */