TEST(ng_charreach, caseless) {
CharReach cr;
cr.set('a');
ASSERT_FALSE(cr.isCaselessChar());
cr.set('A');
ASSERT_TRUE(cr.isCaselessChar());
cr.set('b');
ASSERT_FALSE(cr.isCaselessChar());
cr.set('B');
ASSERT_FALSE(cr.isCaselessChar());
}
TEST(ng_charreach, caseless2) {
// Test every pair of characters.
for (size_t i = 0; i < 256; i++) {
ASSERT_FALSE(CharReach((unsigned char)i).isCaselessChar());
for (size_t j = 0; j < 256; j++) {
CharReach cr;
cr.set(i);
cr.set(j);
bool upper_lower = (i >= 'A' && i <= 'Z') && j == i + 0x20;
bool lower_upper = (i >= 'a' && i <= 'z') && i == j + 0x20;
bool caseless_pair = upper_lower | lower_upper;
ASSERT_EQ(caseless_pair, cr.isCaselessChar())
<< "Failed for i=" << i << ", j=" << j;
}
}
}