cobra_test.go

Documentation: github.com/spf13/cobra

     1  // Copyright 2013-2023 The Cobra Authors
     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  //
     7  //      http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package cobra
    16  
    17  import (
    18  	"testing"
    19  	"text/template"
    20  )
    21  
    22  func assertNoErr(t *testing.T, e error) {
    23  	if e != nil {
    24  		t.Error(e)
    25  	}
    26  }
    27  
    28  func TestAddTemplateFunctions(t *testing.T) {
    29  	AddTemplateFunc("t", func() bool { return true })
    30  	AddTemplateFuncs(template.FuncMap{
    31  		"f": func() bool { return false },
    32  		"h": func() string { return "Hello," },
    33  		"w": func() string { return "world." }})
    34  
    35  	c := &Command{}
    36  	c.SetUsageTemplate(`{{if t}}{{h}}{{end}}{{if f}}{{h}}{{end}} {{w}}`)
    37  
    38  	const expected = "Hello, world."
    39  	if got := c.UsageString(); got != expected {
    40  		t.Errorf("Expected UsageString: %v\nGot: %v", expected, got)
    41  	}
    42  }
    43
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