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- // Copyright 2023 The Gitea Authors. All rights reserved.
- // SPDX-License-Identifier: MIT
-
- package templates
-
- import (
- "errors"
- "html/template"
- "os"
- "strings"
- "testing"
-
- "code.gitea.io/gitea/modules/assetfs"
-
- "github.com/stretchr/testify/assert"
- )
-
- func TestExtractErrorLine(t *testing.T) {
- cases := []struct {
- code string
- line int
- pos int
- target string
- expect string
- }{
- {"hello world\nfoo bar foo bar\ntest", 2, -1, "bar", `
- foo bar foo bar
- ^^^ ^^^
- `},
-
- {"hello world\nfoo bar foo bar\ntest", 2, 4, "bar", `
- foo bar foo bar
- ^
- `},
-
- {
- "hello world\nfoo bar foo bar\ntest", 2, 4, "",
- `
- foo bar foo bar
- ^
- `,
- },
-
- {
- "hello world\nfoo bar foo bar\ntest", 5, 0, "",
- `unable to find target line 5`,
- },
- }
-
- for _, c := range cases {
- actual := extractErrorLine([]byte(c.code), c.line, c.pos, c.target)
- assert.Equal(t, strings.TrimSpace(c.expect), strings.TrimSpace(actual))
- }
- }
-
- func TestHandleError(t *testing.T) {
- dir := t.TempDir()
-
- p := &templateErrorPrettier{assets: assetfs.Layered(assetfs.Local("tmp", dir))}
-
- test := func(s string, h func(error) string, expect string) {
- err := os.WriteFile(dir+"/test.tmpl", []byte(s), 0o644)
- assert.NoError(t, err)
- tmpl := template.New("test")
- _, err = tmpl.Parse(s)
- assert.Error(t, err)
- msg := h(err)
- assert.EqualValues(t, strings.TrimSpace(expect), strings.TrimSpace(msg))
- }
-
- test("{{", p.handleGenericTemplateError, `
- template error: tmp:test:1 : unclosed action
- ----------------------------------------------------------------------
- {{
- ----------------------------------------------------------------------
- `)
-
- test("{{Func}}", p.handleFuncNotDefinedError, `
- template error: tmp:test:1 : function "Func" not defined
- ----------------------------------------------------------------------
- {{Func}}
- ^^^^
- ----------------------------------------------------------------------
- `)
-
- test("{{'x'3}}", p.handleUnexpectedOperandError, `
- template error: tmp:test:1 : unexpected "3" in operand
- ----------------------------------------------------------------------
- {{'x'3}}
- ^
- ----------------------------------------------------------------------
- `)
-
- // no idea about how to trigger such strange error, so mock an error to test it
- err := os.WriteFile(dir+"/test.tmpl", []byte("god knows XXX"), 0o644)
- assert.NoError(t, err)
- expectedMsg := `
- template error: tmp:test:1 : expected end; found XXX
- ----------------------------------------------------------------------
- god knows XXX
- ^^^
- ----------------------------------------------------------------------
- `
- actualMsg := p.handleExpectedEndError(errors.New("template: test:1: expected end; found XXX"))
- assert.EqualValues(t, strings.TrimSpace(expectedMsg), strings.TrimSpace(actualMsg))
- }
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