| // 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) |
| } |
| } |
| } |