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//go:build go1.16 && finder
// +build go1.16,finder
package viper
import (
"io/fs"
"testing"
"testing/fstest"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
func TestFinder(t *testing.T) {
t.Parallel()
fsys := fstest.MapFS{
"home/user/.config": &fstest.MapFile{},
"home/user/config.json": &fstest.MapFile{},
"home/user/config.yaml": &fstest.MapFile{},
"home/user/data.json": &fstest.MapFile{},
"etc/config/.config": &fstest.MapFile{},
"etc/config/a_random_file.txt": &fstest.MapFile{},
"etc/config/config.json": &fstest.MapFile{},
"etc/config/config.yaml": &fstest.MapFile{},
"etc/config/config.xml": &fstest.MapFile{},
}
testCases := []struct {
name string
fsys func() fs.FS
finder finder
result string
}{
{
name: "find file",
fsys: func() fs.FS { return fsys },
finder: finder{
paths: []string{"etc/config"},
fileNames: []string{"config"},
extensions: []string{"json"},
},
result: "etc/config/config.json",
},
{
name: "file not found",
fsys: func() fs.FS { return fsys },
finder: finder{
paths: []string{"var/config"},
fileNames: []string{"config"},
extensions: []string{"json"},
},
result: "",
},
{
name: "empty search params",
fsys: func() fs.FS { return fsys },
finder: finder{},
result: "",
},
{
name: "precedence",
fsys: func() fs.FS { return fsys },
finder: finder{
paths: []string{"var/config", "home/user", "etc/config"},
fileNames: []string{"aconfig", "config"},
extensions: []string{"zml", "xml", "json"},
},
result: "home/user/config.json",
},
{
name: "without extension",
fsys: func() fs.FS { return fsys },
finder: finder{
paths: []string{"var/config", "home/user", "etc/config"},
fileNames: []string{".config"},
extensions: []string{"zml", "xml", "json"},
withoutExtension: true,
},
result: "home/user/.config",
},
}
for _, testCase := range testCases {
testCase := testCase
t.Run(testCase.name, func(t *testing.T) {
t.Parallel()
fsys := testCase.fsys()
result, err := testCase.finder.Find(fsys)
require.NoError(t, err)
assert.Equal(t, testCase.result, result)
})
}
}
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