| // Copyright 2019 Google LLC |
| // |
| // 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 |
| // |
| // https://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 zopflipng |
| |
| import ( |
| "io/ioutil" |
| "testing" |
| ) |
| |
| // TestCompress verifies that ZopfliPng compresses PNGs correctly. |
| func TestCompress(t *testing.T) { |
| path := "testdata/zoidberg.png" |
| contents, err := ioutil.ReadFile(path) |
| if err != nil { |
| t.Errorf("Failed to load testdata: %s", path) |
| } |
| compressed, err := Compress(contents) |
| if err != nil { |
| t.Error("ZopfliPNG failed: ", err) |
| } |
| if len(compressed) >= len(contents) { |
| t.Error("ZopfliPNG did not compress png") |
| } |
| } |
