func TestDecimal_Hypot(t *testing.T) {
tests := [...]struct {
p, q *decimal.Big
c int32
a string
}{
{decimal.New(1, 0), decimal.New(4, 0), 15, "4.12310562561766"},
{decimal.New(1, 0), decimal.New(4, 0), 10, "4.1231056256"},
{Pi, Pi, 75, "4.442882938158366247015880990060693698614621689375690223085395606956434793099"},
{decimal.New(-12, 0), decimal.New(599, 0), 2, "599.12"},
{decimal.New(1234, 3), decimal.New(987654123, 5), 2, "9876.54"},
{decimal.New(3, 0), decimal.New(4, 0), 0, "5"},
}
var a decimal.Big
for i, v := range tests {
a.SetPrec(v.c)
if got := Hypot(&a, v.p, v.q).String(); got != v.a {
t.Errorf("#%d: wanted %q, got %q", i, v.a, got)
}
}
}
