consul/agent/config/builder_test.go
Daniel Nephin 37eacf8192 auto-config: reduce awareness of config
This is a small step to allowing Agent to accept its dependencies
instead of creating them in New.

There were two fields in autoconfig.Config that were used exclusively
to load config. These were replaced with a single function, allowing us
to move LoadConfig back to the config package.

Also removed the WithX functions for building a Config. Since these were
simple assignment, it appeared we were not getting much value from them.
2020-08-12 13:23:23 -04:00

124 lines
3.5 KiB
Go

package config
import (
"fmt"
"io/ioutil"
"os"
"path/filepath"
"testing"
"time"
"github.com/stretchr/testify/require"
)
func TestLoad(t *testing.T) {
// Basically just testing that injection of the extra
// source works.
devMode := true
builderOpts := BuilderOpts{
// putting this in dev mode so that the config validates
// without having to specify a data directory
DevMode: &devMode,
}
cfg, warnings, err := Load(builderOpts, FileSource{
Name: "test",
Format: "hcl",
Data: `node_name = "hobbiton"`,
},
FileSource{
Name: "overrides",
Format: "json",
Data: `{"check_reap_interval": "1ms"}`,
})
require.NoError(t, err)
require.Empty(t, warnings)
require.NotNil(t, cfg)
require.Equal(t, "hobbiton", cfg.NodeName)
require.Equal(t, 1*time.Millisecond, cfg.CheckReapInterval)
}
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{
FileSource{Name: paths[0], Format: "hcl", Data: "content a"},
FileSource{Name: paths[1], Format: "json", Data: "content b"},
FileSource{Name: filepath.Join(paths[3], "a.hcl"), Format: "hcl", Data: "content a"},
FileSource{Name: filepath.Join(paths[3], "b.json"), Format: "json", Data: "content b"},
}
require.Equal(t, expected, b.Sources)
require.Len(t, b.Warnings, 2)
}
func TestNewBuilder_PopulatesSourcesFromConfigFiles_WithConfigFormat(t *testing.T) {
paths := setupConfigFiles(t)
b, err := NewBuilder(BuilderOpts{ConfigFiles: paths, ConfigFormat: "hcl"})
require.NoError(t, err)
expected := []Source{
FileSource{Name: paths[0], Format: "hcl", Data: "content a"},
FileSource{Name: paths[1], Format: "hcl", Data: "content b"},
FileSource{Name: paths[2], Format: "hcl", Data: "content c"},
FileSource{Name: filepath.Join(paths[3], "a.hcl"), Format: "hcl", Data: "content a"},
FileSource{Name: filepath.Join(paths[3], "b.json"), Format: "hcl", Data: "content b"},
FileSource{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,
}
}