83 lines
2.2 KiB
Go
83 lines
2.2 KiB
Go
/*
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Copyright 2024 The Karmada Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package util
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import (
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"bytes"
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"strings"
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"testing"
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)
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func TestParseTemplate(t *testing.T) {
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tests := []struct {
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name string
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template string
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args interface{}
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want []byte
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wantErr bool
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errMsg string
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}{
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{
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name: "ParseTemplate_WithMissingVariable_ParsingFailed",
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template: "Hello, {{.Name}}!",
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args: struct{ Missing string }{Missing: "World"},
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want: nil,
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wantErr: true,
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errMsg: "error when executing template",
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},
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{
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name: "ParseTemplate_WithInvalidTemplateSyntax_ParsingFailed",
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template: "Hello, {{.Name!",
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args: struct{ Name string }{Name: "World"},
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want: nil,
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wantErr: true,
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errMsg: "error when parsing template",
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},
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{
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name: "ParseTemplate_ValidTemplateWithVariable_ParsingSucceeded",
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template: "Hello, {{.Name}}!",
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args: struct{ Name string }{Name: "World"},
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want: []byte("Hello, World!"),
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wantErr: false,
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},
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{
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name: "ParseTemplate_EmptyTemplate_ParsingSucceeded",
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template: "",
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args: nil,
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want: []byte(""),
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wantErr: false,
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},
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}
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for _, test := range tests {
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t.Run(test.name, func(t *testing.T) {
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got, err := ParseTemplate(test.template, test.args)
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if err == nil && test.wantErr {
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t.Errorf("expected an error, but got none")
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}
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if err != nil && !test.wantErr {
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t.Errorf("unexpected error, got: %v", err)
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}
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if err != nil && test.wantErr && !strings.Contains(err.Error(), test.errMsg) {
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t.Errorf("expected error message %s to be in %s", test.errMsg, err.Error())
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}
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if !bytes.Equal(got, test.want) {
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t.Errorf("expected parsed template bytes to be %v, but got %v", test.want, got)
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}
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})
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}
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}
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