github.com/neohugo/neohugo@v0.123.8/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  	qt "github.com/frankban/quicktest"
    20  	"github.com/neohugo/neohugo/identity"
    21  )
    22  
    23  func TestFilterHash(t *testing.T) {
    24  	c := qt.New(t)
    25  
    26  	f := &Filters{}
    27  
    28  	c.Assert(identity.HashString(f.Grayscale()), qt.Equals, identity.HashString(f.Grayscale()))
    29  	c.Assert(identity.HashString(f.Grayscale()), qt.Not(qt.Equals), identity.HashString(f.Invert()))
    30  	c.Assert(identity.HashString(f.Gamma(32)), qt.Not(qt.Equals), identity.HashString(f.Gamma(33)))
    31  	c.Assert(identity.HashString(f.Gamma(32)), qt.Equals, identity.HashString(f.Gamma(32)))
    32  }