consul/agent/config/builder_test.go
Daniel Nephin 476b57fe22 config: refactor to consolidate all File->Source loading
Previously the logic for reading ConfigFiles and produces Sources was split
between NewBuilder and Build. This commit moves all of the logic into NewBuilder
so that Build() can operate entirely on Sources.

This change is in preparation for logging warnings when files have an
unsupported extension.

It also reduces the scope of BuilderOpts, and gets us very close to removing
Builder.options.
2020-06-16 12:52:23 -04:00

94 lines
2.7 KiB
Go

package config
import (
"fmt"
"io/ioutil"
"os"
"path/filepath"
"testing"
"github.com/stretchr/testify/require"
)
func TestShouldParseFile(t *testing.T) {
var testcases = []struct {
filename string
configFormat string
expected bool
}{
{filename: "config.json", expected: true},
{filename: "config.hcl", expected: true},
{filename: "config", configFormat: "hcl", expected: true},
{filename: "config.js", configFormat: "json", expected: true},
{filename: "config.yaml", expected: false},
}
for _, tc := range testcases {
name := fmt.Sprintf("filename=%s, format=%s", tc.filename, tc.configFormat)
t.Run(name, func(t *testing.T) {
require.Equal(t, tc.expected, shouldParseFile(tc.filename, tc.configFormat))
})
}
}
func TestNewBuilder_PopulatesSourcesFromConfigFiles(t *testing.T) {
paths := setupConfigFiles(t)
b, err := NewBuilder(BuilderOpts{ConfigFiles: paths})
require.NoError(t, err)
expected := []Source{
{Name: paths[0], Format: "hcl", Data: "content a"},
{Name: paths[1], Format: "json", Data: "content b"},
{Name: filepath.Join(paths[3], "a.hcl"), Format: "hcl", Data: "content a"},
{Name: filepath.Join(paths[3], "b.json"), Format: "json", Data: "content b"},
}
require.Equal(t, expected, b.Sources)
}
func TestNewBuilder_PopulatesSourcesFromConfigFiles_WithConfigFormat(t *testing.T) {
paths := setupConfigFiles(t)
b, err := NewBuilder(BuilderOpts{ConfigFiles: paths, ConfigFormat: "hcl"})
require.NoError(t, err)
expected := []Source{
{Name: paths[0], Format: "hcl", Data: "content a"},
{Name: paths[1], Format: "hcl", Data: "content b"},
{Name: paths[2], Format: "hcl", Data: "content c"},
{Name: filepath.Join(paths[3], "a.hcl"), Format: "hcl", Data: "content a"},
{Name: filepath.Join(paths[3], "b.json"), Format: "hcl", Data: "content b"},
{Name: filepath.Join(paths[3], "c.yaml"), Format: "hcl", Data: "content c"},
}
require.Equal(t, expected, b.Sources)
}
// TODO: this would be much nicer with gotest.tools/fs
func setupConfigFiles(t *testing.T) []string {
t.Helper()
path, err := ioutil.TempDir("", t.Name())
require.NoError(t, err)
t.Cleanup(func() { os.RemoveAll(path) })
subpath := filepath.Join(path, "sub")
err = os.Mkdir(subpath, 0755)
require.NoError(t, err)
for _, dir := range []string{path, subpath} {
err = ioutil.WriteFile(filepath.Join(dir, "a.hcl"), []byte("content a"), 0644)
require.NoError(t, err)
err = ioutil.WriteFile(filepath.Join(dir, "b.json"), []byte("content b"), 0644)
require.NoError(t, err)
err = ioutil.WriteFile(filepath.Join(dir, "c.yaml"), []byte("content c"), 0644)
require.NoError(t, err)
}
return []string{
filepath.Join(path, "a.hcl"),
filepath.Join(path, "b.json"),
filepath.Join(path, "c.yaml"),
subpath,
}
}