public void testParseInt() {
try {
for (long a : UNSIGNED_INTS) {
assertEquals((int) a, UnsignedInts.parseUnsignedInt(Long.toString(a)));
}
} catch (NumberFormatException e) {
fail(e.getMessage());
}
try {
UnsignedInts.parseUnsignedInt(Long.toString(1L << 32));
fail("Expected NumberFormatException");
} catch (NumberFormatException expected) {
}
}
public void testParseIntWithRadix() {
for (long a : UNSIGNED_INTS) {
for (int radix = Character.MIN_RADIX; radix <= Character.MAX_RADIX; radix++) {
assertEquals((int) a, UnsignedInts.parseUnsignedInt(Long.toString(a, radix), radix));
}
}
}
public void testParseIntFail() {
try {
int unused = UnsignedInts.parseUnsignedInt(Long.toString(1L << 32));
fail("Expected NumberFormatException");
} catch (NumberFormatException expected) {
}
}
public void testParseIntWithRadixLimits() {
// loops through all legal radix values.
for (int radix = Character.MIN_RADIX; radix <= Character.MAX_RADIX; radix++) {
// tests can successfully parse a number string with this radix.
String maxAsString = Long.toString((1L << 32) - 1, radix);
assertEquals(-1, UnsignedInts.parseUnsignedInt(maxAsString, radix));
try {
// tests that we get exception whre an overflow would occur.
long overflow = 1L << 32;
String overflowAsString = Long.toString(overflow, radix);
int unused = UnsignedInts.parseUnsignedInt(overflowAsString, radix);
fail();
} catch (NumberFormatException expected) {
}
}
}
public void testParseIntThrowsExceptionForInvalidRadix() {
// Valid radix values are Character.MIN_RADIX to Character.MAX_RADIX,
// inclusive.
try {
int unused = UnsignedInts.parseUnsignedInt("0", Character.MIN_RADIX - 1);
fail();
} catch (NumberFormatException expected) {
}
try {
int unused = UnsignedInts.parseUnsignedInt("0", Character.MAX_RADIX + 1);
fail();
} catch (NumberFormatException expected) {
}
// The radix is used as an array index, so try a negative value.
try {
int unused = UnsignedInts.parseUnsignedInt("0", -1);
fail();
} catch (NumberFormatException expected) {
}
}
public void testParseInt() {
for (long a : UNSIGNED_INTS) {
assertEquals((int) a, UnsignedInts.parseUnsignedInt(Long.toString(a)));
}
}