github.com/kovansky/hugo@v0.92.3-0.20220224232819-63076e4ff19f/resources/images/filters_test.go (about)

     1  // Copyright 2019 The Hugo Authors. All rights reserved.
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  // http://www.apache.org/licenses/LICENSE-2.0
     7  //
     8  // Unless required by applicable law or agreed to in writing, software
     9  // distributed under the License is distributed on an "AS IS" BASIS,
    10  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    11  // See the License for the specific language governing permissions and
    12  // limitations under the License.
    13  
    14  package images
    15  
    16  import (
    17  	"testing"
    18  
    19  	"github.com/gohugoio/hugo/helpers"
    20  
    21  	qt "github.com/frankban/quicktest"
    22  )
    23  
    24  func TestFilterHash(t *testing.T) {
    25  	c := qt.New(t)
    26  
    27  	f := &Filters{}
    28  
    29  	c.Assert(helpers.HashString(f.Grayscale()), qt.Equals, helpers.HashString(f.Grayscale()))
    30  	c.Assert(helpers.HashString(f.Grayscale()), qt.Not(qt.Equals), helpers.HashString(f.Invert()))
    31  	c.Assert(helpers.HashString(f.Gamma(32)), qt.Not(qt.Equals), helpers.HashString(f.Gamma(33)))
    32  	c.Assert(helpers.HashString(f.Gamma(32)), qt.Equals, helpers.HashString(f.Gamma(32)))
    33  }