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tests: json: add json_escape() tests

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These all pass.

Signed-off-by: Marti Bolivar <marti.bolivar@linaro.org>
This commit is contained in:
Marti Bolivar 2017-05-03 16:33:17 -04:00 committed by Anas Nashif
parent 3c0eac3cba
commit 88f33dcc1b
1 changed files with 91 additions and 1 deletions
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92
tests/lib/json/src/main.c
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@ -171,6 +171,91 @@ static void test_json_key_not_in_descr(void)
zassert_equal(ret, 0, "No items should be decoded");
}
static void test_json_escape(void)
{
char buf[42];
char string[] = "\"abc"
"\\1`23"
"\bf'oo"
"\fbar"
"\nbaz"
"\rquux"
"\tfred\"";
const char *expected = "\\\"abc"
"\\\\1`23"
"\\bf'oo"
"\\fbar"
"\\nbaz"
"\\rquux"
"\\tfred\\\"";
size_t len;
ssize_t ret;
strncpy(buf, string, sizeof(buf) - 1);
len = strlen(buf);
ret = json_escape(buf, &len, sizeof(buf));
zassert_equal(ret, 0, "Escape succeeded");
zassert_equal(len, sizeof(buf) - 1,
"Escaped length computed correctly");
zassert_true(!strcmp(buf, expected),
"Escaped value is correct");
}
/* Edge case: only one character, which must be escaped. */
static void test_json_escape_one(void)
{
char buf[3] = {'\t', '\0', '\0'};
const char *expected = "\\t";
size_t len = strlen(buf);
ssize_t ret;
ret = json_escape(buf, &len, sizeof(buf));
zassert_equal(ret, 0,
"Escaping one character succeded");
zassert_equal(len, sizeof(buf) - 1,
"Escaping one character length is correct");
zassert_true(!strcmp(buf, expected),
"Escaped value is correct");
}
static void test_json_escape_empty(void)
{
char empty[] = "";
size_t len = sizeof(empty) - 1;
ssize_t ret;
ret = json_escape(empty, &len, sizeof(empty));
zassert_equal(ret, 0, "Escaped empty string");
zassert_equal(len, 0, "Length of empty escaped string is zero");
zassert_equal(empty[0], '\0', "Empty string remains empty");
}
static void test_json_escape_no_op(void)
{
char nothing_to_escape[] = "hello,world:!";
const char *expected = "hello,world:!";
size_t len = sizeof(nothing_to_escape) - 1;
ssize_t ret;
ret = json_escape(nothing_to_escape, &len, sizeof(nothing_to_escape));
zassert_equal(ret, 0, "Nothing to escape handled correctly");
zassert_equal(len, sizeof(nothing_to_escape) - 1,
"Didn't change length of already escaped string");
zassert_true(!strcmp(nothing_to_escape, expected),
"Didn't alter string with nothing to escape");
}
static void test_json_escape_bounds_check(void)
{
char not_enough_memory[] = "\tfoo";
size_t len = sizeof(not_enough_memory) - 1;
ssize_t ret;
ret = json_escape(not_enough_memory, &len, sizeof(not_enough_memory));
zassert_equal(ret, -ENOMEM, "Bounds check OK");
}
void test_main(void)
{
ztest_test_suite(lib_json_test,
@ -180,7 +265,12 @@ void test_main(void)
ztest_unit_test(test_json_missing_quote),
ztest_unit_test(test_json_wrong_token),
ztest_unit_test(test_json_item_wrong_type),
ztest_unit_test(test_json_key_not_in_descr)
ztest_unit_test(test_json_key_not_in_descr),
ztest_unit_test(test_json_escape),
ztest_unit_test(test_json_escape_one),
ztest_unit_test(test_json_escape_empty),
ztest_unit_test(test_json_escape_no_op),
ztest_unit_test(test_json_escape_bounds_check)
);
ztest_run_test_suite(lib_json_test);