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/*
Copyright 2014 The Kubernetes Authors All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package resource
import (
"testing"
)
func TestInt64AmountAsInt64(t *testing.T) {
for _, test := range []struct {
value int64
scale Scale
result int64
ok bool
}{
{100, 0, 100, true},
{100, 1, 1000, true},
{100, -5, 0, false},
{100, 100, 0, false},
} {
r, ok := int64Amount{value: test.value, scale: test.scale}.AsInt64()
if r != test.result {
t.Errorf("%v: unexpected result: %d", test, r)
}
if ok != test.ok {
t.Errorf("%v: unexpected ok: %t", test, ok)
}
}
}
func TestInt64AmountAdd(t *testing.T) {
for _, test := range []struct {
a, b, c int64Amount
ok bool
}{
{int64Amount{value: 100, scale: 1}, int64Amount{value: 10, scale: 2}, int64Amount{value: 200, scale: 1}, true},
{int64Amount{value: 100, scale: 1}, int64Amount{value: 1, scale: 2}, int64Amount{value: 110, scale: 1}, true},
{int64Amount{value: 100, scale: 1}, int64Amount{value: 1, scale: 100}, int64Amount{value: 1, scale: 100}, false},
{int64Amount{value: -5, scale: 2}, int64Amount{value: 50, scale: 1}, int64Amount{value: 0, scale: 1}, true},
{int64Amount{value: -5, scale: 2}, int64Amount{value: 5, scale: 2}, int64Amount{value: 0, scale: 2}, true},
{int64Amount{value: mostPositive, scale: -1}, int64Amount{value: 1, scale: -1}, int64Amount{value: 0, scale: -1}, false},
{int64Amount{value: mostPositive, scale: -1}, int64Amount{value: 0, scale: -1}, int64Amount{value: mostPositive, scale: -1}, true},
{int64Amount{value: mostPositive / 10, scale: 1}, int64Amount{value: 10, scale: 0}, int64Amount{value: mostPositive, scale: -1}, false},
} {
c := test.a
ok := c.Add(test.b)
if ok != test.ok {
t.Errorf("%v: unexpected ok: %t", test, ok)
}
if ok {
if c != test.c {
t.Errorf("%v: unexpected result: %d", test, c)
}
} else {
if c != test.a {
t.Errorf("%v: overflow addition mutated source: %d", test, c)
}
}
// addition is commutative
c = test.b
if ok := c.Add(test.a); ok != test.ok {
t.Errorf("%v: unexpected ok: %t", test, ok)
}
if ok {
if c != test.c {
t.Errorf("%v: unexpected result: %d", test, c)
}
} else {
if c != test.b {
t.Errorf("%v: overflow addition mutated source: %d", test, c)
}
}
}
}
func TestInt64AsCanonicalString(t *testing.T) {
for _, test := range []struct {
value int64
scale Scale
result string
exponent int32
}{
{100, 0, "100", 0},
{100, 1, "1", 3},
{100, -1, "10", 0},
{10800, -10, "1080", -9},
} {
r, exp := int64Amount{value: test.value, scale: test.scale}.AsCanonicalBytes(nil)
if string(r) != test.result {
t.Errorf("%v: unexpected result: %s", test, r)
}
if exp != test.exponent {
t.Errorf("%v: unexpected exponent: %d", test, exp)
}
}
}
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