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MDEV-22545: my_vsnprintf behaves not as in C standard

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Added parameter %T for string which should be visibly truncated.
This commit is contained in:
Oleksandr Byelkin
2020-05-20 13:34:51 +02:00
parent d8e2fa0c49
commit cf52dd174e
10 changed files with 267 additions and 223 deletions
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30
unittest/mysys/my_vsnprintf-t.c
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@@ -61,7 +61,7 @@ static void test_many(const char **res, const char *fmt, ...)
int main(void)
{
plan(43);
plan(47);
test1("Constant string",
"Constant string");
@@ -99,27 +99,33 @@ int main(void)
test1("Width is ignored for strings <x> <y>",
"Width is ignored for strings <%04s> <%5s>", "x", "y");
test1("Precision works for strings <ab...>",
test1("Precision works for strings <abcde>",
"Precision works for strings <%.5s>", "abcdef!");
test1("Precision works for strings <ab...>",
"Precision works for strings <%.5T>", "abcdef!");
test1("Flag '`' (backtick) works: `abcd` `op``q` (mysql extension)",
"Flag '`' (backtick) works: %`s %`.4s (mysql extension)",
"abcd", "op`qrst");
test1("Flag '`' (backtick) works: `abcd` `op``q...` (mysql extension)",
"Flag '`' (backtick) works: %`s %`.7s (mysql extension)",
"Flag '`' (backtick) works: %`T %`.7T (mysql extension)",
"abcd", "op`qrstuuuuuuuuu");
test1("Flag '`' (backtick) works: `abcd` `.` (mysql extension)",
"Flag '`' (backtick) works: %`s %`.1s (mysql extension)",
"Flag '`' (backtick) works: %`T %`.1T (mysql extension)",
"abcd", "op`qrstuuuuuuuuu");
test1("Flag '`' (backtick) works: `abcd` `...` (mysql extension)",
"Flag '`' (backtick) works: %`s %`.3s (mysql extension)",
"Flag '`' (backtick) works: %`T %`.3T (mysql extension)",
"abcd", "op`qrstuuuuuuuuu");
test1("Flag '`' (backtick) works: `abcd` `op...` (mysql extension)",
"Flag '`' (backtick) works: %`s %`.5s (mysql extension)",
"Flag '`' (backtick) works: %`T %`.5T (mysql extension)",
"abcd", "op`qrstuuuuuuuuu");
test1("Flag '`' (backtick) works: `abcd` `op``...` (mysql extension)",
"Flag '`' (backtick) works: %`s %`.6s (mysql extension)",
"Flag '`' (backtick) works: %`T %`.6T (mysql extension)",
"abcd", "op`qrstuuuuuuuuu");
test1("Length modifiers work: 1 * -1 * 2 * 3",
@@ -141,15 +147,21 @@ int main(void)
test1("Asterisk '*' as a width works: < 4>",
"Asterisk '*' as a width works: <%*d>", 5, 4);
test1("Asterisk '*' as a precision works: <qwe...>",
test1("Asterisk '*' as a precision works: <qwerty>",
"Asterisk '*' as a precision works: <%.*s>", 6, "qwertyuiop");
test1("Asterisk '*' as a precision works: <qwe...>",
"Asterisk '*' as a precision works: <%.*T>", 6, "qwertyuiop");
test1("Positional arguments for a width: < 4>",
"Positional arguments for a width: <%1$*2$d>", 4, 5);
test1("Positional arguments for a precision: <qwe...>",
test1("Positional arguments for a precision: <qwerty>",
"Positional arguments for a precision: <%1$.*2$s>", "qwertyuiop", 6);
test1("Positional arguments for a precision: <qwe...>",
"Positional arguments for a precision: <%1$.*2$T>", "qwertyuiop", 6);
test1("Positional arguments and a width: <0000ab>",
"Positional arguments and a width: <%1$06x>", 0xab);