| // Copyright 2017 The Prometheus Authors |
| // 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 bcache |
| |
| import ( |
| "math" |
| "testing" |
| ) |
| |
| func TestDehumanizeTests(t *testing.T) { |
| dehumanizeTests := []struct { |
| in []byte |
| out uint64 |
| invalid bool |
| }{ |
| { |
| in: []byte("542k"), |
| out: 555008, |
| }, |
| { |
| in: []byte("322M"), |
| out: 337641472, |
| }, |
| { |
| in: []byte("1.1k"), |
| out: 1124, |
| }, |
| { |
| in: []byte("1.9k"), |
| out: 1924, |
| }, |
| { |
| in: []byte("1.10k"), |
| out: 2024, |
| }, |
| { |
| in: []byte(""), |
| out: 0, |
| invalid: true, |
| }, |
| } |
| for _, tst := range dehumanizeTests { |
| got, err := dehumanize(tst.in) |
| if tst.invalid && err == nil { |
| t.Error("expected an error, but none occurred") |
| } |
| if !tst.invalid && err != nil { |
| t.Errorf("unexpected error: %v", err) |
| } |
| if got != tst.out { |
| t.Errorf("dehumanize: '%s', want %d, got %d", tst.in, tst.out, got) |
| } |
| } |
| } |
| |
| func TestParsePseudoFloatTests(t *testing.T) { |
| parsePseudoFloatTests := []struct { |
| in string |
| out float64 |
| }{ |
| { |
| in: "1.1", |
| out: float64(1.097656), |
| }, |
| { |
| in: "1.9", |
| out: float64(1.878906), |
| }, |
| { |
| in: "1.10", |
| out: float64(1.976562), |
| }, |
| } |
| for _, tst := range parsePseudoFloatTests { |
| got, err := parsePseudoFloat(tst.in) |
| if err != nil || math.Abs(got-tst.out) > 0.0001 { |
| t.Errorf("parsePseudoFloat: %s, want %f, got %f", tst.in, tst.out, got) |
| } |
| } |
| } |
| |
| func TestPriorityStats(t *testing.T) { |
| var want = PriorityStats{ |
| UnusedPercent: 99, |
| MetadataPercent: 5, |
| } |
| var ( |
| in string |
| gotErr error |
| got PriorityStats |
| ) |
| in = "Metadata: 5%" |
| gotErr = parsePriorityStats(in, &got) |
| if gotErr != nil || got.MetadataPercent != want.MetadataPercent { |
| t.Errorf("parsePriorityStats: '%s', want %d, got %d", in, want.MetadataPercent, got.MetadataPercent) |
| } |
| |
| in = "Unused: 99%" |
| gotErr = parsePriorityStats(in, &got) |
| if gotErr != nil || got.UnusedPercent != want.UnusedPercent { |
| t.Errorf("parsePriorityStats: '%s', want %d, got %d", in, want.UnusedPercent, got.UnusedPercent) |
| } |
| } |