github.com/whatlly/hugo@v0.47.1/tpl/collections/apply_test.go (about) 1 // Copyright 2017 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 collections 15 16 import ( 17 "testing" 18 19 "fmt" 20 21 "github.com/gohugoio/hugo/deps" 22 "github.com/gohugoio/hugo/tpl" 23 "github.com/stretchr/testify/require" 24 ) 25 26 type templateFinder int 27 28 func (templateFinder) Lookup(name string) (tpl.Template, bool) { 29 return nil, false 30 } 31 32 func (templateFinder) GetFuncs() map[string]interface{} { 33 return map[string]interface{}{ 34 "print": fmt.Sprint, 35 } 36 } 37 38 func TestApply(t *testing.T) { 39 t.Parallel() 40 41 ns := New(&deps.Deps{Tmpl: new(templateFinder)}) 42 43 strings := []interface{}{"a\n", "b\n"} 44 45 result, err := ns.Apply(strings, "print", "a", "b", "c") 46 require.NoError(t, err) 47 require.Equal(t, []interface{}{"abc", "abc"}, result, "testing variadic") 48 49 _, err = ns.Apply(strings, "apply", ".") 50 require.Error(t, err) 51 52 var nilErr *error 53 _, err = ns.Apply(nilErr, "chomp", ".") 54 require.Error(t, err) 55 56 _, err = ns.Apply(strings, "dobedobedo", ".") 57 require.Error(t, err) 58 59 _, err = ns.Apply(strings, "foo.Chomp", "c\n") 60 if err == nil { 61 t.Errorf("apply with unknown func should fail") 62 } 63 64 }