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forgejo/modules/templates/util_test.go
wxiaoguang 8820191476
Improve template helper functions: string/slice (#24266)
Follow #23328

The improvements:

1. The `contains` functions are covered by tests
2. The inconsistent behavior of `containGeneric` is replaced by
`StringUtils.Contains` and `SliceUtils.Contains`
3. In the future we can move more help functions into XxxUtils to
simplify the `helper.go` and reduce unnecessary global functions.

FAQ:

1. Why it's called `StringUtils.Contains` but not `strings.Contains`
like Golang?

Because our `StringUtils` is not Golang's `strings` package. There will
be our own string functions.

---------

Co-authored-by: silverwind <me@silverwind.io>
2023-04-22 14:16:22 -04:00

79 lines
2.4 KiB
Go

// Copyright 2023 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package templates
import (
"html/template"
"io"
"strings"
"testing"
"github.com/stretchr/testify/assert"
)
func TestDict(t *testing.T) {
type M map[string]any
cases := []struct {
args []any
want map[string]any
}{
{[]any{"a", 1, "b", 2}, M{"a": 1, "b": 2}},
{[]any{".", M{"base": 1}, "b", 2}, M{"base": 1, "b": 2}},
{[]any{"a", 1, ".", M{"extra": 2}}, M{"a": 1, "extra": 2}},
{[]any{"a", 1, ".", map[string]int{"int": 2}}, M{"a": 1, "int": 2}},
{[]any{".", nil, "b", 2}, M{"b": 2}},
}
for _, c := range cases {
got, err := dict(c.args...)
if assert.NoError(t, err) {
assert.EqualValues(t, c.want, got)
}
}
bads := []struct {
args []any
}{
{[]any{"a", 1, "b"}},
{[]any{1}},
{[]any{struct{}{}}},
}
for _, c := range bads {
_, err := dict(c.args...)
assert.Error(t, err)
}
}
func TestUtils(t *testing.T) {
execTmpl := func(code string, data any) string {
tmpl := template.New("test")
tmpl.Funcs(template.FuncMap{"SliceUtils": NewSliceUtils, "StringUtils": NewStringUtils})
template.Must(tmpl.Parse(code))
w := &strings.Builder{}
assert.NoError(t, tmpl.Execute(w, data))
return w.String()
}
actual := execTmpl("{{SliceUtils.Contains .Slice .Value}}", map[string]any{"Slice": []string{"a", "b"}, "Value": "a"})
assert.Equal(t, "true", actual)
actual = execTmpl("{{SliceUtils.Contains .Slice .Value}}", map[string]any{"Slice": []string{"a", "b"}, "Value": "x"})
assert.Equal(t, "false", actual)
actual = execTmpl("{{SliceUtils.Contains .Slice .Value}}", map[string]any{"Slice": []int64{1, 2}, "Value": int64(2)})
assert.Equal(t, "true", actual)
actual = execTmpl("{{StringUtils.Contains .String .Value}}", map[string]any{"String": "abc", "Value": "b"})
assert.Equal(t, "true", actual)
actual = execTmpl("{{StringUtils.Contains .String .Value}}", map[string]any{"String": "abc", "Value": "x"})
assert.Equal(t, "false", actual)
tmpl := template.New("test")
tmpl.Funcs(template.FuncMap{"SliceUtils": NewSliceUtils, "StringUtils": NewStringUtils})
template.Must(tmpl.Parse("{{SliceUtils.Contains .Slice .Value}}"))
// error is like this: `template: test:1:12: executing "test" at <SliceUtils.Contains>: error calling Contains: ...`
err := tmpl.Execute(io.Discard, map[string]any{"Slice": struct{}{}})
assert.ErrorContains(t, err, "invalid type, expected slice or array")
}