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// 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")
}
}
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