267 lines
6.9 KiB
C
267 lines
6.9 KiB
C
// SPDX-FileCopyrightText: 2021 RizinOrg <info@rizin.re>
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// SPDX-FileCopyrightText: 2021 deroad <wargio@libero.it>
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// SPDX-License-Identifier: LGPL-3.0-only
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#include <math.h>
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#include <rz_diff.h>
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#include "minunit.h"
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#define R(a, b, c, d) \
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{ (const ut8 *)a, (const ut8 *)b, c, d }
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static struct {
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const ut8 *a;
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const ut8 *b;
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ut32 myers;
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ut32 levenstein;
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} tests[] = {
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R("", "zzz", 3, 3),
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R("meow", "", 4, 4),
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R("a", "b", 2, 1),
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R("aaa", "aaa", 0, 0),
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R("aaaaa", "aabaa", 2, 1),
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R("aaaa", "aabaa", 1, 1),
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R("aaba", "babca", 3, 2),
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R("foo", "foobar", 3, 3),
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R("wallaby", "wallet", 5, 3),
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R("identity", "identity", 0, 0),
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{ NULL, NULL, 0, 0 }
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};
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bool test_rz_diff_distances(void) {
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ut32 distance;
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bool boolean;
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for (ut32 i = 0; tests[i].a; i++) {
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size_t la = strlen((const char *)tests[i].a);
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size_t lb = strlen((const char *)tests[i].b);
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boolean = rz_diff_levenstein_distance(tests[i].a, la, tests[i].b, lb, &distance, NULL);
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mu_assert_true(boolean, "rz_diff_levenstein_distance");
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mu_assert_eq(distance, tests[i].levenstein, "levenstein distance");
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boolean = rz_diff_myers_distance(tests[i].a, la, tests[i].b, lb, &distance, NULL);
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mu_assert_true(boolean, "rz_diff_myers_distance");
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mu_assert_eq(distance, tests[i].myers, "myers distance");
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}
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mu_end;
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}
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bool test_rz_diff_unified_lines(void) {
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RzDiff *diff = NULL;
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char *result = NULL;
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// clang-format off
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const char *a = ""
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"This part of the\n"
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"document has stayed the\n"
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"same from version to\n"
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"version. It shouldn't\n"
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"be shown if it doesn't\n"
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"change. Otherwise, that\n"
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"would not be helping to\n"
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"compress the size of the\n"
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"changes.\n"
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"\n"
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"This paragraph contains\n"
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"text that is outdated.\n"
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"It will be deleted in the\n"
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"near future.\n"
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"\n"
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"It is important to spell\n"
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"check this dokument. On\n"
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"the other hand, a\n"
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"misspelled word isn't\n"
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"the end of the world.\n"
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"Nothing in the rest of\n"
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"this paragraph needs to\n"
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"be changed. Things can\n"
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"be added after it.";
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const char *b = ""
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"This is an important\n"
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"notice! It should\n"
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"therefore be located at\n"
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"the beginning of this\n"
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"document!\n"
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"\n"
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"This part of the\n"
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"document has stayed the\n"
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"same from version to\n"
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"version. It shouldn't\n"
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"be shown if it doesn't\n"
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"change. Otherwise, that\n"
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"would not be helping to\n"
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"compress the size of the\n"
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"changes.\n"
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"\n"
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"It is important to spell\n"
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"check this document. On\n"
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"the other hand, a\n"
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"misspelled word isn't\n"
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"the end of the world.\n"
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"Nothing in the rest of\n"
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"this paragraph needs to\n"
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"be changed. Things can\n"
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"be added after it.\n"
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"\n"
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"This paragraph contains\n"
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"important new additions\n"
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"to this document.";
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const char *expected = ""
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"--- /original\n"
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"+++ /modified\n"
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"@@ -1,3 +1,9 @@\n"
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"+This is an important\n"
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"+notice! It should\n"
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"+therefore be located at\n"
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"+the beginning of this\n"
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"+document!\n"
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"+\n"
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" This part of the\n"
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" document has stayed the\n"
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" same from version to\n"
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"@@ -8,17 +14,16 @@\n"
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" compress the size of the\n"
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" changes.\n"
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" \n"
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"-This paragraph contains\n"
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"-text that is outdated.\n"
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"-It will be deleted in the\n"
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"-near future.\n"
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"-\n"
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" It is important to spell\n"
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"-check this dokument. On\n"
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"+check this document. On\n"
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" the other hand, a\n"
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" misspelled word isn't\n"
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" the end of the world.\n"
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" Nothing in the rest of\n"
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" this paragraph needs to\n"
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" be changed. Things can\n"
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"-be added after it.\n"
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"+be added after it.\n"
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"+\n"
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"+This paragraph contains\n"
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"+important new additions\n"
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"+to this document.\n";
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// clang-format on
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diff = rz_diff_lines_new(a, b, NULL);
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result = rz_diff_unified_text(diff, NULL, NULL, false, false);
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rz_diff_free(diff);
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mu_assert_notnull(result, "rz_diff_unified result not null");
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printf("\n\n%s\n\n", expected);
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mu_assert_streq(result, expected, "rz_diff_unified on lines");
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free(result);
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mu_end;
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}
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bool test_rz_diff_unified_bytes(void) {
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RzDiff *diff = NULL;
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char *result = NULL;
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// clang-format off
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const char *a = ""
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"This part of the\n"
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"document has stayed the\n"
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"same from version to\n"
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"version. It shouldn't\n"
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"be shown if it doesn't\n"
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"change. Otherwise, that\n"
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"would not be helping to\n"
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"compress the size of the\n"
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"changes.\n"
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"\n"
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"This paragraph contains\n"
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"text that is outdated.\n"
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"It will be deleted in the\n"
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"near future.\n"
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"\n"
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"It is important to spell\n"
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"check this dokument. On\n"
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"the other hand, a\n"
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"misspelled word isn't\n"
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"the end of the world.\n"
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"Nothing in the rest of\n"
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"this paragraph needs to\n"
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"be changed. Things can\n"
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"be added after it.";
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const char *b = ""
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"This is an important\n"
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"notice! It should\n"
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"therefore be located at\n"
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"the beginning of this\n"
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"document!\n"
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"\n"
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"This part of the\n"
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"document has stayed the\n"
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"same from version to\n"
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"version. It shouldn't\n"
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"be shown if it doesn't\n"
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"change. Otherwise, that\n"
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"would not be helping to\n"
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"compress the size of the\n"
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"changes.\n"
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"\n"
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"It is important to spell\n"
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"check this document. On\n"
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"the other hand, a\n"
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"misspelled word isn't\n"
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"the end of the world.\n"
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"Nothing in the rest of\n"
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"this paragraph needs to\n"
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"be changed. Things can\n"
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"be added after it.\n"
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"\n"
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"This paragraph contains\n"
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"important new additions\n"
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"to this document.";
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const char *expected = ""
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"--- /original\n"
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"+++ /modified\n"
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"@@ -1,3 +1,99 @@\n"
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"+5468697320697320616e20696d706f7274616e740a6e6f746963652120497420\n"
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"+73686f756c640a7468657265666f7265206265206c6f63617465642061740a74\n"
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"+686520626567696e6e696e67206f6620746869730a646f63756d656e74210a0a\n"
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" 546869\n"
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"@@ -190,93 +286,6 @@\n"
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" 2e0a0a\n"
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"-546869732070617261677261706820636f6e7461696e730a7465787420746861\n"
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"-74206973206f757464617465642e0a49742077696c6c2062652064656c657465\n"
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"-6420696e207468650a6e656172206675747572652e0a0a\n"
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" 497420\n"
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"@@ -315,7 +324,7 @@\n"
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" 20646f\n"
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"-6b\n"
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"+63\n"
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" 756d65\n"
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"@@ -476,3 +485,70 @@\n"
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" 69742e\n"
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"+0a0a546869732070617261677261706820636f6e7461696e730a696d706f7274\n"
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"+616e74206e6577206164646974696f6e730a746f207468697320646f63756d65\n"
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"+6e742e\n";
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// clang-format on
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diff = rz_diff_bytes_new((const ut8 *)a, strlen(a), (const ut8 *)b, strlen(b), NULL);
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result = rz_diff_unified_text(diff, NULL, NULL, false, false);
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rz_diff_free(diff);
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mu_assert_notnull(result, "rz_diff_unified result not null");
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mu_assert_streq(result, expected, "rz_diff_unified on bytes");
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free(result);
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mu_end;
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}
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int all_tests() {
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mu_run_test(test_rz_diff_distances);
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mu_run_test(test_rz_diff_unified_lines);
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mu_run_test(test_rz_diff_unified_bytes);
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return tests_passed != tests_run;
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}
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mu_main(all_tests)
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