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AK: Test is_ascii, to_ascii_*case over random Unicode samples

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Martin Janiczek 2023-10-02 22:26:07 +02:00 committed by Tim Schumacher
parent 65df1cd22c
commit 8942041eee
1 changed files with 45 additions and 3 deletions
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48
Tests/AK/TestCharacterTypes.cpp
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@ -12,6 +12,8 @@
#define ASCII 0x80
#define UNICODE 0x10FFFF + 100
using namespace Test::Randomized;
void compare_bool_output_over(u32 range, auto& old_function, auto& new_function)
{
bool result1 = false;
@ -19,7 +21,7 @@ void compare_bool_output_over(u32 range, auto& old_function, auto& new_function)
for (u32 i = 0; i < range; ++i) {
EXPECT_EQ(result1 = (old_function(i) > 0), result2 = (new_function(i) > 0));
if (result1 != result2)
dbgln("Function input value was {}.", i);
FAIL(String::formatted("New result {} does not match old result {} for input {}.", result1, result2, i));
}
}
@ -30,11 +32,35 @@ void compare_value_output_over(u32 range, auto& old_function, auto& new_function
for (u32 i = 0; i < range; ++i) {
EXPECT_EQ(result1 = old_function(i), result2 = new_function(i));
if (result1 != result2)
dbgln("Function input value was {}.", i);
FAIL(String::formatted("New result {} does not match old result {} for input {}.", result1, result2, i));
}
}
// NOTE: Avoid comparing over UNICODE in "TEST_CASE" due to test runtime becoming too long.
void randomized_compare_bool_output_over(u32 range, auto& old_function, auto& new_function)
{
// NOTE: randomized tests also run multiple times (100 by default). This means we'll try 10k random numbers times each time the test suite is run.
for (u32 n = 0; n < 100; ++n) {
bool result1 = false;
bool result2 = false;
GEN(i, Gen::unsigned_int(range - 1));
EXPECT_EQ(result1 = (old_function(i) > 0), result2 = (new_function(i) > 0));
if (result1 != result2)
FAIL(String::formatted("New result {} does not match old result {} for input {}.", result1, result2, i));
}
}
void randomized_compare_value_output_over(u32 range, auto& old_function, auto& new_function)
{
// NOTE: randomized tests also run multiple times (100 by default). This means we'll try 10k random numbers times each time the test suite is run.
for (u32 n = 0; n < 100; ++n) {
i64 result1 = false;
i64 result2 = false;
GEN(i, Gen::unsigned_int(range - 1));
EXPECT_EQ(result1 = old_function(i), result2 = new_function(i));
if (result1 != result2)
FAIL(String::formatted("New result {} does not match old result {} for input {}.", result1, result2, i));
}
}
TEST_CASE(is_ascii_alphanumeric)
{
@ -145,3 +171,19 @@ BENCHMARK_CASE(to_ascii_uppercase_unicode)
{
compare_value_output_over(UNICODE, toupper, to_ascii_uppercase);
}
// NOTE: This would take too long to run exhaustively. Let's at least run random subsets of it!
RANDOMIZED_TEST_CASE(is_ascii_unicode)
{
randomized_compare_bool_output_over(UNICODE, isascii, is_ascii);
}
RANDOMIZED_TEST_CASE(to_ascii_lowercase_unicode)
{
randomized_compare_value_output_over(UNICODE, tolower, to_ascii_lowercase);
}
RANDOMIZED_TEST_CASE(to_ascii_uppercase_unicode)
{
randomized_compare_value_output_over(UNICODE, toupper, to_ascii_uppercase);
}