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// Copyright 2017 Google Inc. 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 measurement
import (
"testing"
)
func TestScale(t *testing.T) {
for _, tc := range []struct {
value int64
fromUnit, toUnit string
wantValue float64
wantUnit string
}{
{1, "s", "ms", 1000, "ms"},
{1, "kb", "b", 1024, "B"},
{1, "kbyte", "b", 1024, "B"},
{1, "kilobyte", "b", 1024, "B"},
{1, "mb", "kb", 1024, "kB"},
{1, "gb", "mb", 1024, "MB"},
{1024, "gb", "tb", 1, "TB"},
{1024, "tb", "pb", 1, "PB"},
{2048, "mb", "auto", 2, "GB"},
{3.1536e7, "s", "auto", 1, "yrs"},
{-1, "s", "ms", -1000, "ms"},
{1, "foo", "count", 1, ""},
{1, "foo", "bar", 1, "bar"},
} {
if gotValue, gotUnit := Scale(tc.value, tc.fromUnit, tc.toUnit); gotValue != tc.wantValue || gotUnit != tc.wantUnit {
t.Errorf("Scale(%d, %q, %q) = (%f, %q), want (%f, %q)",
tc.value, tc.fromUnit, tc.toUnit, gotValue, gotUnit, tc.wantValue, tc.wantUnit)
}
}
}
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