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Diffstat (limited to 'src/test/test_consdiff.c')
| -rw-r--r-- | src/test/test_consdiff.c | 1184 |
1 files changed, 1184 insertions, 0 deletions
diff --git a/src/test/test_consdiff.c b/src/test/test_consdiff.c new file mode 100644 index 0000000000..7cf8d6ba2b --- /dev/null +++ b/src/test/test_consdiff.c @@ -0,0 +1,1184 @@ +/* Copyright (c) 2014, Daniel Martà + * Copyright (c) 2014, The Tor Project, Inc. */ +/* See LICENSE for licensing information */ + +#define CONSDIFF_PRIVATE + +#include "or.h" +#include "test.h" + +#include "consdiff.h" +#include "memarea.h" +#include "log_test_helpers.h" + +#define tt_str_eq_line(a,b) \ + tt_assert(line_str_eq((b),(a))) + +static void +test_consdiff_smartlist_slice(void *arg) +{ + smartlist_t *sl = smartlist_new(); + smartlist_slice_t *sls; + + /* Create a regular smartlist. */ + (void)arg; + smartlist_add(sl, (void*)1); + smartlist_add(sl, (void*)2); + smartlist_add(sl, (void*)3); + smartlist_add(sl, (void*)4); + smartlist_add(sl, (void*)5); + + /* See if the slice was done correctly. */ + sls = smartlist_slice(sl, 2, 5); + tt_ptr_op(sl, OP_EQ, sls->list); + tt_ptr_op((void*)3, OP_EQ, smartlist_get(sls->list, sls->offset)); + tt_ptr_op((void*)5, OP_EQ, + smartlist_get(sls->list, sls->offset + (sls->len-1))); + tor_free(sls); + + /* See that using -1 as the end does get to the last element. */ + sls = smartlist_slice(sl, 2, -1); + tt_ptr_op(sl, OP_EQ, sls->list); + tt_ptr_op((void*)3, OP_EQ, smartlist_get(sls->list, sls->offset)); + tt_ptr_op((void*)5, OP_EQ, + smartlist_get(sls->list, sls->offset + (sls->len-1))); + + done: + tor_free(sls); + smartlist_free(sl); +} + +static void +test_consdiff_smartlist_slice_string_pos(void *arg) +{ + smartlist_t *sl = smartlist_new(); + smartlist_slice_t *sls; + memarea_t *area = memarea_new(); + + /* Create a regular smartlist. */ + (void)arg; + consensus_split_lines(sl, "a\nd\nc\na\nb\n", area); + + /* See that smartlist_slice_string_pos respects the bounds of the slice. */ + sls = smartlist_slice(sl, 2, 5); + cdline_t a_line = { "a", 1 }; + tt_int_op(3, OP_EQ, smartlist_slice_string_pos(sls, &a_line)); + cdline_t d_line = { "d", 1 }; + tt_int_op(-1, OP_EQ, smartlist_slice_string_pos(sls, &d_line)); + + done: + tor_free(sls); + smartlist_free(sl); + memarea_drop_all(area); +} + +static void +test_consdiff_lcs_lengths(void *arg) +{ + smartlist_t *sl1 = smartlist_new(); + smartlist_t *sl2 = smartlist_new(); + smartlist_slice_t *sls1, *sls2; + int *lengths1, *lengths2; + memarea_t *area = memarea_new(); + + /* Expected lcs lengths in regular and reverse order. */ + int e_lengths1[] = { 0, 1, 2, 3, 3, 4 }; + int e_lengths2[] = { 0, 1, 1, 2, 3, 4 }; + + (void)arg; + consensus_split_lines(sl1, "a\nb\nc\nd\ne\n", area); + consensus_split_lines(sl2, "a\nc\nd\ni\ne\n", area); + + sls1 = smartlist_slice(sl1, 0, -1); + sls2 = smartlist_slice(sl2, 0, -1); + + lengths1 = lcs_lengths(sls1, sls2, 1); + lengths2 = lcs_lengths(sls1, sls2, -1); + tt_mem_op(e_lengths1, OP_EQ, lengths1, sizeof(int) * 6); + tt_mem_op(e_lengths2, OP_EQ, lengths2, sizeof(int) * 6); + + done: + tor_free(lengths1); + tor_free(lengths2); + tor_free(sls1); + tor_free(sls2); + smartlist_free(sl1); + smartlist_free(sl2); + memarea_drop_all(area); +} + +static void +test_consdiff_trim_slices(void *arg) +{ + smartlist_t *sl1 = smartlist_new(); + smartlist_t *sl2 = smartlist_new(); + smartlist_t *sl3 = smartlist_new(); + smartlist_t *sl4 = smartlist_new(); + smartlist_slice_t *sls1, *sls2, *sls3, *sls4; + memarea_t *area = memarea_new(); + + (void)arg; + consensus_split_lines(sl1, "a\nb\nb\nb\nd\n", area); + consensus_split_lines(sl2, "a\nc\nc\nc\nd\n", area); + consensus_split_lines(sl3, "a\nb\nb\nb\na\n", area); + consensus_split_lines(sl4, "c\nb\nb\nb\nc\n", area); + sls1 = smartlist_slice(sl1, 0, -1); + sls2 = smartlist_slice(sl2, 0, -1); + sls3 = smartlist_slice(sl3, 0, -1); + sls4 = smartlist_slice(sl4, 0, -1); + + /* They should be trimmed by one line at each end. */ + tt_int_op(5, OP_EQ, sls1->len); + tt_int_op(5, OP_EQ, sls2->len); + trim_slices(sls1, sls2); + tt_int_op(3, OP_EQ, sls1->len); + tt_int_op(3, OP_EQ, sls2->len); + + /* They should not be trimmed at all. */ + tt_int_op(5, OP_EQ, sls3->len); + tt_int_op(5, OP_EQ, sls4->len); + trim_slices(sls3, sls4); + tt_int_op(5, OP_EQ, sls3->len); + tt_int_op(5, OP_EQ, sls4->len); + + done: + tor_free(sls1); + tor_free(sls2); + tor_free(sls3); + tor_free(sls4); + smartlist_free(sl1); + smartlist_free(sl2); + smartlist_free(sl3); + smartlist_free(sl4); + memarea_drop_all(area); +} + +static void +test_consdiff_set_changed(void *arg) +{ + smartlist_t *sl1 = smartlist_new(); + smartlist_t *sl2 = smartlist_new(); + bitarray_t *changed1 = bitarray_init_zero(4); + bitarray_t *changed2 = bitarray_init_zero(4); + smartlist_slice_t *sls1, *sls2; + memarea_t *area = memarea_new(); + + (void)arg; + consensus_split_lines(sl1, "a\nb\na\na\n", area); + consensus_split_lines(sl2, "a\na\na\na\n", area); + + /* Length of sls1 is 0. */ + sls1 = smartlist_slice(sl1, 0, 0); + sls2 = smartlist_slice(sl2, 1, 3); + set_changed(changed1, changed2, sls1, sls2); + + /* The former is not changed, the latter changes all of its elements. */ + tt_assert(!bitarray_is_set(changed1, 0)); + tt_assert(!bitarray_is_set(changed1, 1)); + tt_assert(!bitarray_is_set(changed1, 2)); + tt_assert(!bitarray_is_set(changed1, 3)); + + tt_assert(!bitarray_is_set(changed2, 0)); + tt_assert(bitarray_is_set(changed2, 1)); + tt_assert(bitarray_is_set(changed2, 2)); + tt_assert(!bitarray_is_set(changed2, 3)); + bitarray_clear(changed2, 1); + bitarray_clear(changed2, 2); + + /* Length of sls1 is 1 and its element is in sls2. */ + tor_free(sls1); + sls1 = smartlist_slice(sl1, 0, 1); + set_changed(changed1, changed2, sls1, sls2); + + /* The latter changes all elements but the (first) common one. */ + tt_assert(!bitarray_is_set(changed1, 0)); + tt_assert(!bitarray_is_set(changed1, 1)); + tt_assert(!bitarray_is_set(changed1, 2)); + tt_assert(!bitarray_is_set(changed1, 3)); + + tt_assert(!bitarray_is_set(changed2, 0)); + tt_assert(!bitarray_is_set(changed2, 1)); + tt_assert(bitarray_is_set(changed2, 2)); + tt_assert(!bitarray_is_set(changed2, 3)); + bitarray_clear(changed2, 2); + + /* Length of sls1 is 1 and its element is not in sls2. */ + tor_free(sls1); + sls1 = smartlist_slice(sl1, 1, 2); + set_changed(changed1, changed2, sls1, sls2); + + /* The former changes its element, the latter changes all elements. */ + tt_assert(!bitarray_is_set(changed1, 0)); + tt_assert(bitarray_is_set(changed1, 1)); + tt_assert(!bitarray_is_set(changed1, 2)); + tt_assert(!bitarray_is_set(changed1, 3)); + + tt_assert(!bitarray_is_set(changed2, 0)); + tt_assert(bitarray_is_set(changed2, 1)); + tt_assert(bitarray_is_set(changed2, 2)); + tt_assert(!bitarray_is_set(changed2, 3)); + + done: + bitarray_free(changed1); + bitarray_free(changed2); + smartlist_free(sl1); + smartlist_free(sl2); + tor_free(sls1); + tor_free(sls2); + memarea_drop_all(area); +} + +static void +test_consdiff_calc_changes(void *arg) +{ + smartlist_t *sl1 = smartlist_new(); + smartlist_t *sl2 = smartlist_new(); + smartlist_slice_t *sls1, *sls2; + bitarray_t *changed1 = bitarray_init_zero(4); + bitarray_t *changed2 = bitarray_init_zero(4); + memarea_t *area = memarea_new(); + + (void)arg; + consensus_split_lines(sl1, "a\na\na\na\n", area); + consensus_split_lines(sl2, "a\na\na\na\n", area); + + sls1 = smartlist_slice(sl1, 0, -1); + sls2 = smartlist_slice(sl2, 0, -1); + calc_changes(sls1, sls2, changed1, changed2); + + /* Nothing should be set to changed. */ + tt_assert(!bitarray_is_set(changed1, 0)); + tt_assert(!bitarray_is_set(changed1, 1)); + tt_assert(!bitarray_is_set(changed1, 2)); + tt_assert(!bitarray_is_set(changed1, 3)); + + tt_assert(!bitarray_is_set(changed2, 0)); + tt_assert(!bitarray_is_set(changed2, 1)); + tt_assert(!bitarray_is_set(changed2, 2)); + tt_assert(!bitarray_is_set(changed2, 3)); + + smartlist_clear(sl2); + consensus_split_lines(sl2, "a\nb\na\nb\n", area); + tor_free(sls1); + tor_free(sls2); + sls1 = smartlist_slice(sl1, 0, -1); + sls2 = smartlist_slice(sl2, 0, -1); + calc_changes(sls1, sls2, changed1, changed2); + + /* Two elements are changed. */ + tt_assert(!bitarray_is_set(changed1, 0)); + tt_assert(bitarray_is_set(changed1, 1)); + tt_assert(bitarray_is_set(changed1, 2)); + tt_assert(!bitarray_is_set(changed1, 3)); + bitarray_clear(changed1, 1); + bitarray_clear(changed1, 2); + + tt_assert(!bitarray_is_set(changed2, 0)); + tt_assert(bitarray_is_set(changed2, 1)); + tt_assert(!bitarray_is_set(changed2, 2)); + tt_assert(bitarray_is_set(changed2, 3)); + bitarray_clear(changed1, 1); + bitarray_clear(changed1, 3); + + smartlist_clear(sl2); + consensus_split_lines(sl2, "b\nb\nb\nb\n", area); + tor_free(sls1); + tor_free(sls2); + sls1 = smartlist_slice(sl1, 0, -1); + sls2 = smartlist_slice(sl2, 0, -1); + calc_changes(sls1, sls2, changed1, changed2); + + /* All elements are changed. */ + tt_assert(bitarray_is_set(changed1, 0)); + tt_assert(bitarray_is_set(changed1, 1)); + tt_assert(bitarray_is_set(changed1, 2)); + tt_assert(bitarray_is_set(changed1, 3)); + + tt_assert(bitarray_is_set(changed2, 0)); + tt_assert(bitarray_is_set(changed2, 1)); + tt_assert(bitarray_is_set(changed2, 2)); + tt_assert(bitarray_is_set(changed2, 3)); + + done: + bitarray_free(changed1); + bitarray_free(changed2); + smartlist_free(sl1); + smartlist_free(sl2); + tor_free(sls1); + tor_free(sls2); + memarea_drop_all(area); +} + +static void +test_consdiff_get_id_hash(void *arg) +{ + (void)arg; + + cdline_t line1 = { "r name", 6 }; + cdline_t line2 = { "r name _hash_isnt_base64 etc", 28 }; + cdline_t line3 = { "r name hash+valid+base64 etc", 28 }; + cdline_t tmp; + + /* No hash. */ + tt_int_op(-1, OP_EQ, get_id_hash(&line1, &tmp)); + /* The hash contains characters that are not base64. */ + tt_int_op(-1, OP_EQ, get_id_hash(&line2, &tmp)); + + /* valid hash. */ + tt_int_op(0, OP_EQ, get_id_hash(&line3, &tmp)); + tt_ptr_op(tmp.s, OP_EQ, line3.s + 7); + tt_uint_op(tmp.len, OP_EQ, line3.len - 11); + + done: + ; +} + +static void +test_consdiff_is_valid_router_entry(void *arg) +{ + /* Doesn't start with "r ". */ + (void)arg; + cdline_t line0 = { "foo", 3 }; + tt_int_op(0, OP_EQ, is_valid_router_entry(&line0)); + + /* These are already tested with get_id_hash, but make sure it's run + * properly. */ + + cdline_t line1 = { "r name", 6 }; + cdline_t line2 = { "r name _hash_isnt_base64 etc", 28 }; + cdline_t line3 = { "r name hash+valid+base64 etc", 28 }; + tt_int_op(0, OP_EQ, is_valid_router_entry(&line1)); + tt_int_op(0, OP_EQ, is_valid_router_entry(&line2)); + tt_int_op(1, OP_EQ, is_valid_router_entry(&line3)); + + done: + ; +} + +static void +test_consdiff_next_router(void *arg) +{ + smartlist_t *sl = smartlist_new(); + memarea_t *area = memarea_new(); + (void)arg; + smartlist_add_linecpy(sl, area, "foo"); + smartlist_add_linecpy(sl, area, + "r name hash+longer+than+27+chars+and+valid+base64 etc"); + smartlist_add_linecpy(sl, area, "foo"); + smartlist_add_linecpy(sl, area, "foo"); + smartlist_add_linecpy(sl, area, + "r name hash+longer+than+27+chars+and+valid+base64 etc"); + smartlist_add_linecpy(sl, area, "foo"); + + /* Not currently on a router entry line, finding the next one. */ + tt_int_op(1, OP_EQ, next_router(sl, 0)); + tt_int_op(4, OP_EQ, next_router(sl, 2)); + + /* Already at the beginning of a router entry line, ignore it. */ + tt_int_op(4, OP_EQ, next_router(sl, 1)); + + /* There are no more router entries, so return the line after the last. */ + tt_int_op(6, OP_EQ, next_router(sl, 4)); + tt_int_op(6, OP_EQ, next_router(sl, 5)); + + done: + smartlist_free(sl); + memarea_drop_all(area); +} + +static int +base64cmp_wrapper(const char *a, const char *b) +{ + cdline_t aa = { a, a ? (uint32_t) strlen(a) : 0 }; + cdline_t bb = { b, b ? (uint32_t) strlen(b) : 0 }; + return base64cmp(&aa, &bb); +} + +static void +test_consdiff_base64cmp(void *arg) +{ + /* NULL arguments. */ + (void)arg; + tt_int_op(0, OP_EQ, base64cmp_wrapper(NULL, NULL)); + tt_int_op(-1, OP_EQ, base64cmp_wrapper(NULL, "foo")); + tt_int_op(1, OP_EQ, base64cmp_wrapper("bar", NULL)); + + /* Nil base64 values. */ + tt_int_op(0, OP_EQ, base64cmp_wrapper("", "")); + tt_int_op(0, OP_EQ, base64cmp_wrapper("_", "&")); + + /* Exact same valid strings. */ + tt_int_op(0, OP_EQ, base64cmp_wrapper("abcABC/+", "abcABC/+")); + /* Both end with an invalid base64 char other than '\0'. */ + tt_int_op(0, OP_EQ, base64cmp_wrapper("abcABC/+ ", "abcABC/+ ")); + /* Only one ends with an invalid base64 char other than '\0'. */ + tt_int_op(-1, OP_EQ, base64cmp_wrapper("abcABC/+ ", "abcABC/+a")); + + /* Comparisons that would return differently with strcmp(). */ + tt_int_op(strcmp("/foo", "Afoo"), OP_LT, 0); + tt_int_op(base64cmp_wrapper("/foo", "Afoo"), OP_GT, 0); + tt_int_op(strcmp("Afoo", "0foo"), OP_GT, 0); + tt_int_op(base64cmp_wrapper("Afoo", "0foo"), OP_LT, 0); + + /* Comparisons that would return the same as with strcmp(). */ + tt_int_op(strcmp("afoo", "Afoo"), OP_GT, 0); + tt_int_op(base64cmp_wrapper("afoo", "Afoo"), OP_GT, 0); + + /* Different lengths */ + tt_int_op(base64cmp_wrapper("afoo", "afooo"), OP_LT, 0); + tt_int_op(base64cmp_wrapper("afooo", "afoo"), OP_GT, 0); + + done: + ; +} + +static void +test_consdiff_gen_ed_diff(void *arg) +{ + smartlist_t *cons1=NULL, *cons2=NULL, *diff=NULL; + int i; + memarea_t *area = memarea_new(); + setup_capture_of_logs(LOG_WARN); + + (void)arg; + cons1 = smartlist_new(); + cons2 = smartlist_new(); + + /* Identity hashes are not sorted properly, return NULL. */ + smartlist_add_linecpy(cons1, area, "r name bbbbbbbbbbbbbbbbbbbbbbbbbbb etc"); + smartlist_add_linecpy(cons1, area, "foo"); + smartlist_add_linecpy(cons1, area, "r name aaaaaaaaaaaaaaaaaaaaaaaaaaa etc"); + smartlist_add_linecpy(cons1, area, "bar"); + + smartlist_add_linecpy(cons2, area, "r name aaaaaaaaaaaaaaaaaaaaaaaaaaa etc"); + smartlist_add_linecpy(cons2, area, "foo"); + smartlist_add_linecpy(cons2, area, "r name ccccccccccccccccccccccccccc etc"); + smartlist_add_linecpy(cons2, area, "bar"); + + diff = gen_ed_diff(cons1, cons2, area); + tt_ptr_op(NULL, OP_EQ, diff); + expect_single_log_msg_containing("Refusing to generate consensus diff " + "because the base consensus doesn't have its router entries sorted " + "properly."); + + /* Same, but now with the second consensus. */ + mock_clean_saved_logs(); + diff = gen_ed_diff(cons2, cons1, area); + tt_ptr_op(NULL, OP_EQ, diff); + expect_single_log_msg_containing("Refusing to generate consensus diff " + "because the target consensus doesn't have its router entries sorted " + "properly."); + + /* Same as the two above, but with the reversed thing immediately after a + match. (The code handles this differently) */ + smartlist_del(cons1, 0); + smartlist_add_linecpy(cons1, area, "r name aaaaaaaaaaaaaaaaaaaaaaaaaaa etc"); + + mock_clean_saved_logs(); + diff = gen_ed_diff(cons1, cons2, area); + tt_ptr_op(NULL, OP_EQ, diff); + expect_single_log_msg_containing("Refusing to generate consensus diff " + "because the base consensus doesn't have its router entries sorted " + "properly."); + + mock_clean_saved_logs(); + diff = gen_ed_diff(cons2, cons1, area); + tt_ptr_op(NULL, OP_EQ, diff); + expect_single_log_msg_containing("Refusing to generate consensus diff " + "because the target consensus doesn't have its router entries sorted " + "properly."); + + /* Identity hashes are repeated, return NULL. */ + smartlist_clear(cons1); + + smartlist_add_linecpy(cons1, area, "r name bbbbbbbbbbbbbbbbbbbbbbbbbbb etc"); + smartlist_add_linecpy(cons1, area, "foo"); + smartlist_add_linecpy(cons1, area, "r name bbbbbbbbbbbbbbbbbbbbbbbbbbb etc"); + smartlist_add_linecpy(cons1, area, "bar"); + + mock_clean_saved_logs(); + diff = gen_ed_diff(cons1, cons2, area); + tt_ptr_op(NULL, OP_EQ, diff); + expect_single_log_msg_containing("Refusing to generate consensus diff " + "because the base consensus doesn't have its router entries sorted " + "properly."); + + /* We have to add a line that is just a dot, return NULL. */ + smartlist_clear(cons1); + smartlist_clear(cons2); + + smartlist_add_linecpy(cons1, area, "foo1"); + smartlist_add_linecpy(cons1, area, "foo2"); + + smartlist_add_linecpy(cons2, area, "foo1"); + smartlist_add_linecpy(cons2, area, "."); + smartlist_add_linecpy(cons2, area, "foo2"); + + mock_clean_saved_logs(); + diff = gen_ed_diff(cons1, cons2, area); + tt_ptr_op(NULL, OP_EQ, diff); + expect_single_log_msg_containing("Cannot generate consensus diff " + "because one of the lines to be added is \".\"."); + +#define MAX_LINE_COUNT (10000) + /* Too many lines to be fed to the quadratic-time function. */ + smartlist_clear(cons1); + smartlist_clear(cons2); + + for (i=0; i < MAX_LINE_COUNT; ++i) smartlist_add_linecpy(cons1, area, "a"); + for (i=0; i < MAX_LINE_COUNT; ++i) smartlist_add_linecpy(cons1, area, "b"); + + mock_clean_saved_logs(); + diff = gen_ed_diff(cons1, cons2, area); + + tt_ptr_op(NULL, OP_EQ, diff); + expect_single_log_msg_containing("Refusing to generate consensus diff " + "because we found too few common router ids."); + + /* We have dot lines, but they don't interfere with the script format. */ + smartlist_clear(cons1); + smartlist_clear(cons2); + + smartlist_add_linecpy(cons1, area, "foo1"); + smartlist_add_linecpy(cons1, area, "."); + smartlist_add_linecpy(cons1, area, "."); + smartlist_add_linecpy(cons1, area, "foo2"); + + smartlist_add_linecpy(cons2, area, "foo1"); + smartlist_add_linecpy(cons2, area, "."); + smartlist_add_linecpy(cons2, area, "foo2"); + + diff = gen_ed_diff(cons1, cons2, area); + tt_ptr_op(NULL, OP_NE, diff); + smartlist_free(diff); + + /* Empty diff tests. */ + smartlist_clear(cons1); + smartlist_clear(cons2); + + diff = gen_ed_diff(cons1, cons2, area); + tt_ptr_op(NULL, OP_NE, diff); + tt_int_op(0, OP_EQ, smartlist_len(diff)); + smartlist_free(diff); + + smartlist_add_linecpy(cons1, area, "foo"); + smartlist_add_linecpy(cons1, area, "bar"); + + smartlist_add_linecpy(cons2, area, "foo"); + smartlist_add_linecpy(cons2, area, "bar"); + + diff = gen_ed_diff(cons1, cons2, area); + tt_ptr_op(NULL, OP_NE, diff); + tt_int_op(0, OP_EQ, smartlist_len(diff)); + smartlist_free(diff); + + /* Everything is deleted. */ + smartlist_clear(cons2); + + diff = gen_ed_diff(cons1, cons2, area); + tt_ptr_op(NULL, OP_NE, diff); + tt_int_op(1, OP_EQ, smartlist_len(diff)); + tt_str_eq_line("1,2d", smartlist_get(diff, 0)); + + smartlist_free(diff); + + /* Everything is added. */ + diff = gen_ed_diff(cons2, cons1, area); + tt_ptr_op(NULL, OP_NE, diff); + tt_int_op(4, OP_EQ, smartlist_len(diff)); + tt_str_eq_line("0a", smartlist_get(diff, 0)); + tt_str_eq_line("foo", smartlist_get(diff, 1)); + tt_str_eq_line("bar", smartlist_get(diff, 2)); + tt_str_eq_line(".", smartlist_get(diff, 3)); + + smartlist_free(diff); + + /* Everything is changed. */ + smartlist_add_linecpy(cons2, area, "foo2"); + smartlist_add_linecpy(cons2, area, "bar2"); + diff = gen_ed_diff(cons1, cons2, area); + tt_ptr_op(NULL, OP_NE, diff); + tt_int_op(4, OP_EQ, smartlist_len(diff)); + tt_str_eq_line("1,2c", smartlist_get(diff, 0)); + tt_str_eq_line("foo2", smartlist_get(diff, 1)); + tt_str_eq_line("bar2", smartlist_get(diff, 2)); + tt_str_eq_line(".", smartlist_get(diff, 3)); + + smartlist_free(diff); + + /* Test 'a', 'c' and 'd' together. See that it is done in reverse order. */ + smartlist_clear(cons1); + smartlist_clear(cons2); + consensus_split_lines(cons1, "A\nB\nC\nD\nE\n", area); + consensus_split_lines(cons2, "A\nC\nO\nE\nU\n", area); + diff = gen_ed_diff(cons1, cons2, area); + tt_ptr_op(NULL, OP_NE, diff); + tt_int_op(7, OP_EQ, smartlist_len(diff)); + tt_str_eq_line("5a", smartlist_get(diff, 0)); + tt_str_eq_line("U", smartlist_get(diff, 1)); + tt_str_eq_line(".", smartlist_get(diff, 2)); + tt_str_eq_line("4c", smartlist_get(diff, 3)); + tt_str_eq_line("O", smartlist_get(diff, 4)); + tt_str_eq_line(".", smartlist_get(diff, 5)); + tt_str_eq_line("2d", smartlist_get(diff, 6)); + + smartlist_free(diff); + + smartlist_clear(cons1); + smartlist_clear(cons2); + consensus_split_lines(cons1, "B\n", area); + consensus_split_lines(cons2, "A\nB\n", area); + diff = gen_ed_diff(cons1, cons2, area); + tt_ptr_op(NULL, OP_NE, diff); + tt_int_op(3, OP_EQ, smartlist_len(diff)); + tt_str_eq_line("0a", smartlist_get(diff, 0)); + tt_str_eq_line("A", smartlist_get(diff, 1)); + tt_str_eq_line(".", smartlist_get(diff, 2)); + + /* TODO: small real use-cases, i.e. consensuses. */ + + done: + teardown_capture_of_logs(); + smartlist_free(cons1); + smartlist_free(cons2); + smartlist_free(diff); + memarea_drop_all(area); +} + +static void +test_consdiff_apply_ed_diff(void *arg) +{ + smartlist_t *cons1=NULL, *cons2=NULL, *diff=NULL; + memarea_t *area = memarea_new(); + (void)arg; + cons1 = smartlist_new(); + diff = smartlist_new(); + setup_capture_of_logs(LOG_WARN); + + consensus_split_lines(cons1, "A\nB\nC\nD\nE\n", area); + + /* Command without range. */ + smartlist_add_linecpy(diff, area, "a"); + cons2 = apply_ed_diff(cons1, diff, 0); + tt_ptr_op(NULL, OP_EQ, cons2); + smartlist_clear(diff); + expect_single_log_msg_containing("an ed command was missing a line number"); + + /* Range without command. */ + smartlist_add_linecpy(diff, area, "1"); + mock_clean_saved_logs(); + cons2 = apply_ed_diff(cons1, diff, 0); + tt_ptr_op(NULL, OP_EQ, cons2); + expect_single_log_msg_containing("a line with no ed command was found"); + + smartlist_clear(diff); + + /* Range without end. */ + smartlist_add_linecpy(diff, area, "1,"); + mock_clean_saved_logs(); + cons2 = apply_ed_diff(cons1, diff, 0); + tt_ptr_op(NULL, OP_EQ, cons2); + expect_single_log_msg_containing("an ed command was missing a range " + "end line number."); + + smartlist_clear(diff); + + /* Incoherent ranges. */ + smartlist_add_linecpy(diff, area, "1,1"); + mock_clean_saved_logs(); + cons2 = apply_ed_diff(cons1, diff, 0); + tt_ptr_op(NULL, OP_EQ, cons2); + expect_single_log_msg_containing("an invalid range was found"); + + smartlist_clear(diff); + + smartlist_add_linecpy(diff, area, "3,2"); + mock_clean_saved_logs(); + cons2 = apply_ed_diff(cons1, diff, 0); + tt_ptr_op(NULL, OP_EQ, cons2); + expect_single_log_msg_containing("an invalid range was found"); + + smartlist_clear(diff); + + /* Unexpected range for add command. */ + smartlist_add_linecpy(diff, area, "1,2a"); + mock_clean_saved_logs(); + cons2 = apply_ed_diff(cons1, diff, 0); + tt_ptr_op(NULL, OP_EQ, cons2); + expect_single_log_msg_containing("add lines after a range"); + + smartlist_clear(diff); + + /* $ for a non-delete command. */ + smartlist_add_linecpy(diff, area, "1,$c"); + mock_clean_saved_logs(); + cons2 = apply_ed_diff(cons1, diff, 0); + tt_ptr_op(NULL, OP_EQ, cons2); + expect_single_log_msg_containing("it wanted to use $ with a command " + "other than delete"); + + smartlist_clear(diff); + + /* Script is not in reverse order. */ + smartlist_add_linecpy(diff, area, "1d"); + smartlist_add_linecpy(diff, area, "3d"); + mock_clean_saved_logs(); + cons2 = apply_ed_diff(cons1, diff, 0); + tt_ptr_op(NULL, OP_EQ, cons2); + expect_single_log_msg_containing("its commands are not properly sorted"); + + smartlist_clear(diff); + + /* Script contains unrecognised commands longer than one char. */ + smartlist_add_linecpy(diff, area, "1foo"); + mock_clean_saved_logs(); + cons2 = apply_ed_diff(cons1, diff, 0); + tt_ptr_op(NULL, OP_EQ, cons2); + expect_single_log_msg_containing("an ed command longer than one char was " + "found"); + + smartlist_clear(diff); + + /* Script contains unrecognised commands. */ + smartlist_add_linecpy(diff, area, "1e"); + mock_clean_saved_logs(); + cons2 = apply_ed_diff(cons1, diff, 0); + tt_ptr_op(NULL, OP_EQ, cons2); + expect_single_log_msg_containing("an unrecognised ed command was found"); + + smartlist_clear(diff); + + /* Command that should be followed by at least one line and a ".", but + * isn't. */ + smartlist_add_linecpy(diff, area, "0a"); + mock_clean_saved_logs(); + cons2 = apply_ed_diff(cons1, diff, 0); + tt_ptr_op(NULL, OP_EQ, cons2); + expect_single_log_msg_containing("it has an ed command that tries to " + "insert zero lines."); + + /* Now it is followed by a ".", but it inserts zero lines. */ + smartlist_add_linecpy(diff, area, "."); + mock_clean_saved_logs(); + cons2 = apply_ed_diff(cons1, diff, 0); + tt_ptr_op(NULL, OP_EQ, cons2); + expect_single_log_msg_containing("it has an ed command that tries to " + "insert zero lines."); + + smartlist_clear(diff); + + /* Now it it inserts something, but has no terminator. */ + smartlist_add_linecpy(diff, area, "0a"); + smartlist_add_linecpy(diff, area, "hello"); + mock_clean_saved_logs(); + cons2 = apply_ed_diff(cons1, diff, 0); + tt_ptr_op(NULL, OP_EQ, cons2); + expect_single_log_msg_containing("lines to be inserted that don't end with " + "a \".\"."); + + smartlist_clear(diff); + + /* Ranges must be numeric only and cannot contain spaces. */ + smartlist_add_linecpy(diff, area, "0, 4d"); + mock_clean_saved_logs(); + cons2 = apply_ed_diff(cons1, diff, 0); + tt_ptr_op(NULL, OP_EQ, cons2); + expect_single_log_msg_containing("an ed command was missing a range " + "end line number."); + + smartlist_clear(diff); + + /* '+' is not a number. */ + smartlist_add_linecpy(diff, area, "+0,4d"); + mock_clean_saved_logs(); + cons2 = apply_ed_diff(cons1, diff, 0); + tt_ptr_op(NULL, OP_EQ, cons2); + expect_single_log_msg_containing("an ed command was missing a line number"); + + smartlist_clear(diff); + + /* range duplication */ + smartlist_add_linecpy(diff, area, "0,4d,5d"); + mock_clean_saved_logs(); + cons2 = apply_ed_diff(cons1, diff, 0); + tt_ptr_op(NULL, OP_EQ, cons2); + expect_single_log_msg_containing("an ed command longer than one char was " + "found"); + + smartlist_clear(diff); + + /* space before command */ + smartlist_add_linecpy(diff, area, "0,4 d"); + mock_clean_saved_logs(); + cons2 = apply_ed_diff(cons1, diff, 0); + tt_ptr_op(NULL, OP_EQ, cons2); + expect_single_log_msg_containing("an ed command longer than one char was " + "found"); + + smartlist_clear(diff); + + /* space inside number */ + smartlist_add_linecpy(diff, area, "0,4 5d"); + mock_clean_saved_logs(); + cons2 = apply_ed_diff(cons1, diff, 0); + tt_ptr_op(NULL, OP_EQ, cons2); + expect_single_log_msg_containing("an ed command longer than one char was " + "found"); + + smartlist_clear(diff); + + /* Test appending text, 'a'. */ + consensus_split_lines(diff, "3a\nU\nO\n.\n0a\nV\n.\n", area); + cons2 = apply_ed_diff(cons1, diff, 0); + tt_ptr_op(NULL, OP_NE, cons2); + tt_int_op(8, OP_EQ, smartlist_len(cons2)); + tt_str_eq_line("V", smartlist_get(cons2, 0)); + tt_str_eq_line("A", smartlist_get(cons2, 1)); + tt_str_eq_line("B", smartlist_get(cons2, 2)); + tt_str_eq_line("C", smartlist_get(cons2, 3)); + tt_str_eq_line("U", smartlist_get(cons2, 4)); + tt_str_eq_line("O", smartlist_get(cons2, 5)); + tt_str_eq_line("D", smartlist_get(cons2, 6)); + tt_str_eq_line("E", smartlist_get(cons2, 7)); + + smartlist_clear(diff); + smartlist_free(cons2); + + /* Test deleting text, 'd'. */ + consensus_split_lines(diff, "4d\n1,2d\n", area); + cons2 = apply_ed_diff(cons1, diff, 0); + tt_ptr_op(NULL, OP_NE, cons2); + tt_int_op(2, OP_EQ, smartlist_len(cons2)); + tt_str_eq_line("C", smartlist_get(cons2, 0)); + tt_str_eq_line("E", smartlist_get(cons2, 1)); + + smartlist_clear(diff); + smartlist_free(cons2); + + /* Test changing text, 'c'. */ + consensus_split_lines(diff, "4c\nT\nX\n.\n1,2c\nM\n.\n", area); + cons2 = apply_ed_diff(cons1, diff, 0); + tt_ptr_op(NULL, OP_NE, cons2); + tt_int_op(5, OP_EQ, smartlist_len(cons2)); + tt_str_eq_line("M", smartlist_get(cons2, 0)); + tt_str_eq_line("C", smartlist_get(cons2, 1)); + tt_str_eq_line("T", smartlist_get(cons2, 2)); + tt_str_eq_line("X", smartlist_get(cons2, 3)); + tt_str_eq_line("E", smartlist_get(cons2, 4)); + + smartlist_clear(diff); + smartlist_free(cons2); + + /* Test 'a', 'd' and 'c' together. */ + consensus_split_lines(diff, "4c\nT\nX\n.\n2d\n0a\nM\n.\n", area); + cons2 = apply_ed_diff(cons1, diff, 0); + tt_ptr_op(NULL, OP_NE, cons2); + tt_int_op(6, OP_EQ, smartlist_len(cons2)); + tt_str_eq_line("M", smartlist_get(cons2, 0)); + tt_str_eq_line("A", smartlist_get(cons2, 1)); + tt_str_eq_line("C", smartlist_get(cons2, 2)); + tt_str_eq_line("T", smartlist_get(cons2, 3)); + tt_str_eq_line("X", smartlist_get(cons2, 4)); + tt_str_eq_line("E", smartlist_get(cons2, 5)); + + done: + teardown_capture_of_logs(); + smartlist_free(cons1); + smartlist_free(cons2); + smartlist_free(diff); + memarea_drop_all(area); +} + +static void +test_consdiff_gen_diff(void *arg) +{ + char *cons1_str=NULL, *cons2_str=NULL; + smartlist_t *cons1=NULL, *cons2=NULL, *diff=NULL; + consensus_digest_t digests1, digests2; + memarea_t *area = memarea_new(); + (void)arg; + cons1 = smartlist_new(); + cons2 = smartlist_new(); + + /* Identity hashes are not sorted properly, return NULL. + * Already tested in gen_ed_diff, but see that a NULL ed diff also makes + * gen_diff return NULL. */ + cons1_str = tor_strdup( + "network-status-version foo\n" + "r name bbbbbbbbbbbbbbbbb etc\nfoo\n" + "r name aaaaaaaaaaaaaaaaa etc\nbar\n" + "directory-signature foo bar\nbar\n" + ); + cons2_str = tor_strdup( + "network-status-version foo\n" + "r name aaaaaaaaaaaaaaaaa etc\nfoo\n" + "r name ccccccccccccccccc etc\nbar\n" + "directory-signature foo bar\nbar\n" + ); + + tt_int_op(0, OP_EQ, + consensus_compute_digest_as_signed(cons1_str, &digests1)); + tt_int_op(0, OP_EQ, + consensus_compute_digest(cons2_str, &digests2)); + + consensus_split_lines(cons1, cons1_str, area); + consensus_split_lines(cons2, cons2_str, area); + + diff = consdiff_gen_diff(cons1, cons2, &digests1, &digests2, area); + tt_ptr_op(NULL, OP_EQ, diff); + + /* Check that the headers are done properly. */ + tor_free(cons1_str); + cons1_str = tor_strdup( + "network-status-version foo\n" + "r name ccccccccccccccccc etc\nfoo\n" + "r name eeeeeeeeeeeeeeeee etc\nbar\n" + "directory-signature foo bar\nbar\n" + ); + tt_int_op(0, OP_EQ, + consensus_compute_digest_as_signed(cons1_str, &digests1)); + smartlist_clear(cons1); + consensus_split_lines(cons1, cons1_str, area); + diff = consdiff_gen_diff(cons1, cons2, &digests1, &digests2, area); + tt_ptr_op(NULL, OP_NE, diff); + tt_int_op(11, OP_EQ, smartlist_len(diff)); + tt_assert(line_str_eq(smartlist_get(diff, 0), + "network-status-diff-version 1")); + tt_assert(line_str_eq(smartlist_get(diff, 1), "hash " + "95D70F5A3CC65F920AA8B44C4563D7781A082674329661884E19E94B79D539C2 " + "7AFECEFA4599BA33D603653E3D2368F648DF4AC4723929B0F7CF39281596B0C1")); + tt_assert(line_str_eq(smartlist_get(diff, 2), "6,$d")); + tt_assert(line_str_eq(smartlist_get(diff, 3), "3,4c")); + tt_assert(line_str_eq(smartlist_get(diff, 4), "bar")); + tt_assert(line_str_eq(smartlist_get(diff, 5), + "directory-signature foo bar")); + tt_assert(line_str_eq(smartlist_get(diff, 6), + ".")); + tt_assert(line_str_eq(smartlist_get(diff, 7), "1a")); + tt_assert(line_str_eq(smartlist_get(diff, 8), + "r name aaaaaaaaaaaaaaaaa etc")); + tt_assert(line_str_eq(smartlist_get(diff, 9), "foo")); + tt_assert(line_str_eq(smartlist_get(diff, 10), ".")); + + /* TODO: small real use-cases, i.e. consensuses. */ + + done: + tor_free(cons1_str); + tor_free(cons2_str); + smartlist_free(cons1); + smartlist_free(cons2); + smartlist_free(diff); + memarea_drop_all(area); +} + +static void +test_consdiff_apply_diff(void *arg) +{ + smartlist_t *cons1=NULL, *diff=NULL; + char *cons1_str=NULL, *cons2 = NULL; + consensus_digest_t digests1; + (void)arg; + memarea_t *area = memarea_new(); + cons1 = smartlist_new(); + diff = smartlist_new(); + setup_capture_of_logs(LOG_INFO); + + cons1_str = tor_strdup( + "network-status-version foo\n" + "r name ccccccccccccccccc etc\nfoo\n" + "r name eeeeeeeeeeeeeeeee etc\nbar\n" + "directory-signature foo bar\nbar\n" + ); + tt_int_op(0, OP_EQ, + consensus_compute_digest(cons1_str, &digests1)); + consensus_split_lines(cons1, cons1_str, area); + + /* diff doesn't have enough lines. */ + cons2 = consdiff_apply_diff(cons1, diff, &digests1); + tt_ptr_op(NULL, OP_EQ, cons2); + expect_single_log_msg_containing("too short") + + /* first line doesn't match format-version string. */ + smartlist_add_linecpy(diff, area, "foo-bar"); + smartlist_add_linecpy(diff, area, "header-line"); + mock_clean_saved_logs(); + cons2 = consdiff_apply_diff(cons1, diff, &digests1); + tt_ptr_op(NULL, OP_EQ, cons2); + expect_single_log_msg_containing("format is not known") + + /* The first word of the second header line is not "hash". */ + smartlist_clear(diff); + smartlist_add_linecpy(diff, area, "network-status-diff-version 1"); + smartlist_add_linecpy(diff, area, "word a b"); + smartlist_add_linecpy(diff, area, "x"); + mock_clean_saved_logs(); + cons2 = consdiff_apply_diff(cons1, diff, &digests1); + tt_ptr_op(NULL, OP_EQ, cons2); + expect_single_log_msg_containing("does not include the necessary digests") + + /* Wrong number of words after "hash". */ + smartlist_clear(diff); + smartlist_add_linecpy(diff, area, "network-status-diff-version 1"); + smartlist_add_linecpy(diff, area, "hash a b c"); + mock_clean_saved_logs(); + cons2 = consdiff_apply_diff(cons1, diff, &digests1); + tt_ptr_op(NULL, OP_EQ, cons2); + expect_single_log_msg_containing("does not include the necessary digests") + + /* base16 digests do not have the expected length. */ + smartlist_clear(diff); + smartlist_add_linecpy(diff, area, "network-status-diff-version 1"); + smartlist_add_linecpy(diff, area, "hash aaa bbb"); + mock_clean_saved_logs(); + cons2 = consdiff_apply_diff(cons1, diff, &digests1); + tt_ptr_op(NULL, OP_EQ, cons2); + expect_single_log_msg_containing("includes base16-encoded digests of " + "incorrect size") + + /* base16 digests contain non-base16 characters. */ + smartlist_clear(diff); + smartlist_add_linecpy(diff, area, "network-status-diff-version 1"); + smartlist_add_linecpy(diff, area, "hash" + " ????????????????????????????????????????????????????????????????" + " ----------------------------------------------------------------"); + mock_clean_saved_logs(); + cons2 = consdiff_apply_diff(cons1, diff, &digests1); + tt_ptr_op(NULL, OP_EQ, cons2); + expect_single_log_msg_containing("includes malformed digests") + + /* Invalid ed diff. + * As tested in apply_ed_diff, but check that apply_diff does return NULL if + * the ed diff can't be applied. */ + smartlist_clear(diff); + smartlist_add_linecpy(diff, area, "network-status-diff-version 1"); + smartlist_add_linecpy(diff, area, "hash" + /* sha3 of cons1. */ + " 06646D6CF563A41869D3B02E73254372AE3140046C5E7D83C9F71E54976AF9B4" + /* sha256 of cons2. */ + " 635D34593020C08E5ECD865F9986E29D50028EFA62843766A8197AD228A7F6AA"); + smartlist_add_linecpy(diff, area, "foobar"); + mock_clean_saved_logs(); + cons2 = consdiff_apply_diff(cons1, diff, &digests1); + tt_ptr_op(NULL, OP_EQ, cons2); + expect_single_log_msg_containing("because an ed command was missing a line " + "number") + + /* Base consensus doesn't match its digest as found in the diff. */ + smartlist_clear(diff); + smartlist_add_linecpy(diff, area, "network-status-diff-version 1"); + smartlist_add_linecpy(diff, area, "hash" + /* bogus sha256. */ + " 3333333333333333333333333333333333333333333333333333333333333333" + /* sha256 of cons2. */ + " 635D34593020C08E5ECD865F9986E29D50028EFA62843766A8197AD228A7F6AA"); + mock_clean_saved_logs(); + cons2 = consdiff_apply_diff(cons1, diff, &digests1); + tt_ptr_op(NULL, OP_EQ, cons2); + expect_log_msg_containing("base consensus doesn't match the digest " + "as found"); + + /* Resulting consensus doesn't match its digest as found in the diff. */ + smartlist_clear(diff); + smartlist_add_linecpy(diff, area, "network-status-diff-version 1"); + smartlist_add_linecpy(diff, area, "hash" + /* sha3 of cons1. */ + " 06646D6CF563A41869D3B02E73254372AE3140046C5E7D83C9F71E54976AF9B4" + /* bogus sha3. */ + " 3333333333333333333333333333333333333333333333333333333333333333"); + mock_clean_saved_logs(); + cons2 = consdiff_apply_diff(cons1, diff, &digests1); + tt_ptr_op(NULL, OP_EQ, cons2); + expect_log_msg_containing("resulting consensus doesn't match the " + "digest as found"); + +#if 0 + /* XXXX No longer possible, since we aren't using the other algorithm. */ + /* Resulting consensus digest cannot be computed */ + smartlist_clear(diff); + smartlist_add_linecpy(diff, area, "network-status-diff-version 1"); + smartlist_add_linecpy(diff, area, "hash" + /* sha3 of cons1. */ + " 06646D6CF563A41869D3B02E73254372AE3140046C5E7D83C9F71E54976AF9B4" + /* bogus sha3. */ + " 3333333333333333333333333333333333333333333333333333333333333333"); + smartlist_add_linecpy(diff, area, "1,2d"); // remove starting line + mock_clean_saved_logs(); + cons2 = consdiff_apply_diff(cons1, diff, &digests1); + tt_ptr_op(NULL, OP_EQ, cons2); + expect_log_msg_containing("Could not compute digests of the consensus " + "resulting from applying a consensus diff."); +#endif + + /* Very simple test, only to see that nothing errors. */ + smartlist_clear(diff); + smartlist_add_linecpy(diff, area, "network-status-diff-version 1"); + smartlist_add_linecpy(diff, area, "hash" + /* sha3 of cons1. */ + " 06646D6CF563A41869D3B02E73254372AE3140046C5E7D83C9F71E54976AF9B4" + /* sha3 of cons2. */ + " 90A418881B2FCAB3D9E60EE02E4D666D56CFA38F8A3B7AA3E0ADBA530DDA9353"); + smartlist_add_linecpy(diff, area, "3c"); + smartlist_add_linecpy(diff, area, "sample"); + smartlist_add_linecpy(diff, area, "."); + cons2 = consdiff_apply_diff(cons1, diff, &digests1); + tt_ptr_op(NULL, OP_NE, cons2); + tt_str_op( + "network-status-version foo\n" + "r name ccccccccccccccccc etc\nsample\n" + "r name eeeeeeeeeeeeeeeee etc\nbar\n" + "directory-signature foo bar\nbar\n", OP_EQ, + cons2); + tor_free(cons2); + + /* Check that lowercase letters in base16-encoded digests work too. */ + smartlist_clear(diff); + smartlist_add_linecpy(diff, area, "network-status-diff-version 1"); + smartlist_add_linecpy(diff, area, "hash" + /* sha3 of cons1. */ + " 06646d6cf563a41869d3b02e73254372ae3140046c5e7d83c9f71e54976af9b4" + /* sha3 of cons2. */ + " 90a418881b2fcab3d9e60ee02e4d666d56cfa38f8a3b7aa3e0adba530dda9353"); + smartlist_add_linecpy(diff, area, "3c"); + smartlist_add_linecpy(diff, area, "sample"); + smartlist_add_linecpy(diff, area, "."); + cons2 = consdiff_apply_diff(cons1, diff, &digests1); + tt_ptr_op(NULL, OP_NE, cons2); + tt_str_op( + "network-status-version foo\n" + "r name ccccccccccccccccc etc\nsample\n" + "r name eeeeeeeeeeeeeeeee etc\nbar\n" + "directory-signature foo bar\nbar\n", OP_EQ, + cons2); + tor_free(cons2); + + smartlist_clear(diff); + + done: + teardown_capture_of_logs(); + tor_free(cons1_str); + smartlist_free(cons1); + smartlist_free(diff); + memarea_drop_all(area); +} + +#define CONSDIFF_LEGACY(name) \ + { #name, test_consdiff_ ## name , 0, NULL, NULL } + +struct testcase_t consdiff_tests[] = { + CONSDIFF_LEGACY(smartlist_slice), + CONSDIFF_LEGACY(smartlist_slice_string_pos), + CONSDIFF_LEGACY(lcs_lengths), + CONSDIFF_LEGACY(trim_slices), + CONSDIFF_LEGACY(set_changed), + CONSDIFF_LEGACY(calc_changes), + CONSDIFF_LEGACY(get_id_hash), + CONSDIFF_LEGACY(is_valid_router_entry), + CONSDIFF_LEGACY(next_router), + CONSDIFF_LEGACY(base64cmp), + CONSDIFF_LEGACY(gen_ed_diff), + CONSDIFF_LEGACY(apply_ed_diff), + CONSDIFF_LEGACY(gen_diff), + CONSDIFF_LEGACY(apply_diff), + END_OF_TESTCASES +}; + |