+
+ @Test(groups = "Functional")
+ public void testCheckOverflow()
+ {
+ // things that don't overflow:
+ SparseIntArray.checkOverflow(Integer.MAX_VALUE, 0);
+ SparseIntArray.checkOverflow(Integer.MAX_VALUE, -1);
+ SparseIntArray.checkOverflow(Integer.MAX_VALUE, Integer.MIN_VALUE);
+ SparseIntArray.checkOverflow(Integer.MAX_VALUE, -Integer.MAX_VALUE);
+ SparseIntArray.checkOverflow(0, -Integer.MAX_VALUE);
+ SparseIntArray.checkOverflow(0, Integer.MIN_VALUE);
+ SparseIntArray.checkOverflow(Integer.MIN_VALUE, 0);
+ SparseIntArray.checkOverflow(Integer.MIN_VALUE, 1);
+ SparseIntArray.checkOverflow(Integer.MIN_VALUE, Integer.MAX_VALUE);
+
+ // and some that do
+ try
+ {
+ SparseIntArray.checkOverflow(Integer.MAX_VALUE, 1);
+ fail("expected exception");
+ } catch (ArithmeticException e)
+ {
+ // expected
+ }
+ try
+ {
+ SparseIntArray.checkOverflow(Integer.MAX_VALUE - 1, 2);
+ fail("expected exception");
+ } catch (ArithmeticException e)
+ {
+ // expected
+ }
+ try
+ {
+ SparseIntArray.checkOverflow(1, Integer.MAX_VALUE);
+ fail("expected exception");
+ } catch (ArithmeticException e)
+ {
+ // expected
+ }
+ try
+ {
+ SparseIntArray.checkOverflow(Integer.MIN_VALUE, -1);
+ fail("expected exception");
+ } catch (ArithmeticException e)
+ {
+ // expected
+ }
+ try
+ {
+ SparseIntArray.checkOverflow(Integer.MIN_VALUE + 1, -2);
+ fail("expected exception");
+ } catch (ArithmeticException e)
+ {
+ // expected
+ }
+ try
+ {
+ SparseIntArray.checkOverflow(-1, Integer.MIN_VALUE);
+ fail("expected exception");
+ } catch (ArithmeticException e)
+ {
+ // expected
+ }
+ }
+