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Tests: Add a test for printf truncation

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Tim Schumacher 2022-04-09 03:29:56 +02:00 committed by Ali Mohammad Pur
parent 3651da6a96
commit 66170ff632
Notes: sideshowbarker 2024-07-17 11:49:21 +09:00 
Author: https://github.com/timschumi
Commit: https://github.com/SerenityOS/serenity/commit/66170ff632
Pull-request: https://github.com/SerenityOS/serenity/pull/13581
1 changed files with 36 additions and 0 deletions
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36
Tests/LibC/TestSnprintf.cpp
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@ -11,6 +11,7 @@
#include <AK/StringBuilder.h> #include <AK/StringBuilder.h>
#include <ctype.h> #include <ctype.h>
#include <inttypes.h> #include <inttypes.h>
#include <limits.h>
#include <stdint.h> #include <stdint.h>
#include <stdio.h> #include <stdio.h>
@ -289,3 +290,38 @@ TEST_CASE(float_values)
EXPECT(test_single<double>({ LITERAL("xxxxxxx"), "|%4f|", v.f, 6, LITERAL("| inf|\0") })); EXPECT(test_single<double>({ LITERAL("xxxxxxx"), "|%4f|", v.f, 6, LITERAL("| inf|\0") }));
EXPECT(test_single<double>({ LITERAL("xxxxxxx"), "|%4f|", -v.f, 6, LITERAL("|-inf|\0") })); EXPECT(test_single<double>({ LITERAL("xxxxxxx"), "|%4f|", -v.f, 6, LITERAL("|-inf|\0") }));
} }
TEST_CASE(truncation)
{
EXPECT(test_single<int>({ LITERAL("xxxxxxxxxxxxx"), "|%d|", INT_MAX, 12, LITERAL("|2147483647|\0") }));
EXPECT(test_single<int>({ LITERAL("xxxxxxxxxxxxxx"), "|%d|", INT_MIN, 13, LITERAL("|-2147483648|\0") }));
if constexpr (sizeof(long int) == 8) {
EXPECT(test_single<long int>({ LITERAL("xxxxxxxxxxxxxxxxxxxxxx"), "|%ld|", LONG_MAX, 21, LITERAL("|9223372036854775807|\0") }));
EXPECT(test_single<long int>({ LITERAL("xxxxxxxxxxxxxxxxxxxxxxx"), "|%ld|", LONG_MIN + 1, 22, LITERAL("|-9223372036854775807|\0") }));
} else {
EXPECT(test_single<long int>({ LITERAL("xxxxxxxxxxxxx"), "|%ld|", LONG_MAX, 12, LITERAL("|2147483647|\0") }));
EXPECT(test_single<long int>({ LITERAL("xxxxxxxxxxxxxx"), "|%ld|", LONG_MIN, 13, LITERAL("|-2147483648|\0") }));
}
EXPECT(test_single<long long int>({ LITERAL("xxxxxxxxxxxxxxxxxxxxxx"), "|%lld|", LLONG_MAX, 21, LITERAL("|9223372036854775807|\0") }));
EXPECT(test_single<long long int>({ LITERAL("xxxxxxxxxxxxxxxxxxxxxxx"), "|%lld|", LLONG_MIN + 1, 22, LITERAL("|-9223372036854775807|\0") }));
EXPECT(test_single<unsigned int>({ LITERAL("xxxxxxxxxxxxx"), "|%u|", UINT_MAX, 12, LITERAL("|4294967295|\0") }));
EXPECT(test_single<unsigned int>({ LITERAL("xxxxxxxxxxx"), "|%x|", UINT_MAX, 10, LITERAL("|ffffffff|\0") }));
EXPECT(test_single<unsigned int>({ LITERAL("xxxxxxxxxxx"), "|%X|", UINT_MAX, 10, LITERAL("|FFFFFFFF|\0") }));
if constexpr (sizeof(unsigned long int) == 8) {
EXPECT(test_single<unsigned long int>({ LITERAL("xxxxxxxxxxxxxxxxxxxxxxx"), "|%lu|", ULONG_MAX, 22, LITERAL("|18446744073709551615|\0") }));
EXPECT(test_single<unsigned long int>({ LITERAL("xxxxxxxxxxxxxxxxxxx"), "|%lx|", ULONG_MAX, 18, LITERAL("|ffffffffffffffff|\0") }));
EXPECT(test_single<unsigned long int>({ LITERAL("xxxxxxxxxxxxxxxxxxx"), "|%lX|", ULONG_MAX, 18, LITERAL("|FFFFFFFFFFFFFFFF|\0") }));
} else {
EXPECT(test_single<unsigned long int>({ LITERAL("xxxxxxxxxxxxx"), "|%lu|", ULONG_MAX, 12, LITERAL("|4294967295|\0") }));
EXPECT(test_single<unsigned long int>({ LITERAL("xxxxxxxxxxx"), "|%lx|", ULONG_MAX, 10, LITERAL("|ffffffff|\0") }));
EXPECT(test_single<unsigned long int>({ LITERAL("xxxxxxxxxxx"), "|%lX|", ULONG_MAX, 10, LITERAL("|FFFFFFFF|\0") }));
}
EXPECT(test_single<unsigned long long int>({ LITERAL("xxxxxxxxxxxxxxxxxxxxxxx"), "|%llu|", ULLONG_MAX, 22, LITERAL("|18446744073709551615|\0") }));
EXPECT(test_single<unsigned long long int>({ LITERAL("xxxxxxxxxxxxxxxxxxx"), "|%llx|", ULLONG_MAX, 18, LITERAL("|ffffffffffffffff|\0") }));
EXPECT(test_single<unsigned long long int>({ LITERAL("xxxxxxxxxxxxxxxxxxx"), "|%llX|", ULLONG_MAX, 18, LITERAL("|FFFFFFFFFFFFFFFF|\0") }));
}