312 lines
8.2 KiB
Go
312 lines
8.2 KiB
Go
package file
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import (
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"context"
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"fmt"
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"io/ioutil"
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"os"
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"path"
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"testing"
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"time"
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"github.com/containous/traefik/safe"
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"github.com/containous/traefik/types"
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"github.com/stretchr/testify/assert"
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)
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func TestProvideSingleFileAndWatch(t *testing.T) {
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tempDir := createTempDir(t, "testfile")
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defer os.RemoveAll(tempDir)
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expectedNumFrontends := 2
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expectedNumBackends := 2
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expectedNumTLSConf := 2
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tempFile := createFile(t,
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tempDir, "simple.toml",
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createFrontendConfiguration(expectedNumFrontends),
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createBackendConfiguration(expectedNumBackends),
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createTLS(expectedNumTLSConf))
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configurationChan, signal := createConfigurationRoutine(t, &expectedNumFrontends, &expectedNumBackends, &expectedNumTLSConf)
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provide(configurationChan, watch, withFile(tempFile))
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// Wait for initial message to be tested
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err := waitForSignal(signal, 2*time.Second, "initial config")
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assert.NoError(t, err)
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// Now test again with single frontend and backend
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expectedNumFrontends = 1
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expectedNumBackends = 1
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expectedNumTLSConf = 1
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createFile(t,
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tempDir, "simple.toml",
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createFrontendConfiguration(expectedNumFrontends),
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createBackendConfiguration(expectedNumBackends),
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createTLS(expectedNumTLSConf))
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err = waitForSignal(signal, 2*time.Second, "single frontend, backend, TLS configuration")
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assert.NoError(t, err)
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}
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func TestProvideSingleFileAndNotWatch(t *testing.T) {
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tempDir := createTempDir(t, "testfile")
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defer os.RemoveAll(tempDir)
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expectedNumFrontends := 2
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expectedNumBackends := 2
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expectedNumTLSConf := 2
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tempFile := createFile(t,
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tempDir, "simple.toml",
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createFrontendConfiguration(expectedNumFrontends),
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createBackendConfiguration(expectedNumBackends),
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createTLS(expectedNumTLSConf))
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configurationChan, signal := createConfigurationRoutine(t, &expectedNumFrontends, &expectedNumBackends, &expectedNumTLSConf)
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provide(configurationChan, withFile(tempFile))
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// Wait for initial message to be tested
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err := waitForSignal(signal, 2*time.Second, "initial config")
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assert.NoError(t, err)
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// Now test again with single frontend and backend
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expectedNumFrontends = 1
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expectedNumBackends = 1
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expectedNumTLSConf = 1
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createFile(t,
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tempDir, "simple.toml",
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createFrontendConfiguration(expectedNumFrontends),
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createBackendConfiguration(expectedNumBackends),
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createTLS(expectedNumTLSConf))
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// Must fail because we don't watch the changes
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err = waitForSignal(signal, 2*time.Second, "single frontend, backend and TLS configuration")
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assert.Error(t, err)
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}
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func TestProvideDirectoryAndWatch(t *testing.T) {
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tempDir := createTempDir(t, "testdir")
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defer os.RemoveAll(tempDir)
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expectedNumFrontends := 2
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expectedNumBackends := 2
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expectedNumTLSConf := 2
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tempFile1 := createRandomFile(t, tempDir, createFrontendConfiguration(expectedNumFrontends))
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tempFile2 := createRandomFile(t, tempDir, createBackendConfiguration(expectedNumBackends))
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tempFile3 := createRandomFile(t, tempDir, createTLS(expectedNumTLSConf))
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configurationChan, signal := createConfigurationRoutine(t, &expectedNumFrontends, &expectedNumBackends, &expectedNumTLSConf)
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provide(configurationChan, watch, withDirectory(tempDir))
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// Wait for initial config message to be tested
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err := waitForSignal(signal, 2*time.Second, "initial config")
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assert.NoError(t, err)
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// Now remove the backends file
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expectedNumFrontends = 2
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expectedNumBackends = 0
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expectedNumTLSConf = 2
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os.Remove(tempFile2.Name())
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err = waitForSignal(signal, 2*time.Second, "remove the backends file")
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assert.NoError(t, err)
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// Now remove the frontends file
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expectedNumFrontends = 0
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expectedNumBackends = 0
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expectedNumTLSConf = 2
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os.Remove(tempFile1.Name())
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err = waitForSignal(signal, 2*time.Second, "remove the frontends file")
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assert.NoError(t, err)
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// Now remove the TLS configuration file
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expectedNumFrontends = 0
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expectedNumBackends = 0
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expectedNumTLSConf = 0
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os.Remove(tempFile3.Name())
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err = waitForSignal(signal, 2*time.Second, "remove the TLS configuration file")
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assert.NoError(t, err)
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}
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func TestProvideDirectoryAndNotWatch(t *testing.T) {
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tempDir := createTempDir(t, "testdir")
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tempTLSDir := createSubDir(t, tempDir, "tls")
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defer os.RemoveAll(tempDir)
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expectedNumFrontends := 2
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expectedNumBackends := 2
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expectedNumTLSConf := 2
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createRandomFile(t, tempDir, createFrontendConfiguration(expectedNumFrontends))
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tempFile2 := createRandomFile(t, tempDir, createBackendConfiguration(expectedNumBackends))
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createRandomFile(t, tempTLSDir, createTLS(expectedNumTLSConf))
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configurationChan, signal := createConfigurationRoutine(t, &expectedNumFrontends, &expectedNumBackends, &expectedNumTLSConf)
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provide(configurationChan, withDirectory(tempDir))
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// Wait for initial config message to be tested
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err := waitForSignal(signal, 2*time.Second, "initial config")
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assert.NoError(t, err)
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// Now remove the backends file
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expectedNumFrontends = 2
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expectedNumBackends = 0
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expectedNumTLSConf = 2
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os.Remove(tempFile2.Name())
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// Must fail because we don't watch the changes
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err = waitForSignal(signal, 2*time.Second, "remove the backends file")
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assert.Error(t, err)
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}
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func createConfigurationRoutine(t *testing.T, expectedNumFrontends *int, expectedNumBackends *int, expectedNumTLSes *int) (chan types.ConfigMessage, chan interface{}) {
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configurationChan := make(chan types.ConfigMessage)
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signal := make(chan interface{})
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safe.Go(func() {
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for {
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data := <-configurationChan
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assert.Equal(t, "file", data.ProviderName)
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assert.Len(t, data.Configuration.Frontends, *expectedNumFrontends)
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assert.Len(t, data.Configuration.Backends, *expectedNumBackends)
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assert.Len(t, data.Configuration.TLS, *expectedNumTLSes)
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signal <- nil
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}
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})
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return configurationChan, signal
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}
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func waitForSignal(signal chan interface{}, timeout time.Duration, caseName string) error {
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timer := time.NewTimer(timeout)
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defer timer.Stop()
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select {
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case <-signal:
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case <-timer.C:
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return fmt.Errorf("Timed out waiting for assertions to be tested: %s", caseName)
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}
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return nil
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}
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func provide(configurationChan chan types.ConfigMessage, builders ...func(p *Provider)) {
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pvd := &Provider{}
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for _, builder := range builders {
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builder(pvd)
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}
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pvd.Provide(configurationChan, safe.NewPool(context.Background()), nil)
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}
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func watch(pvd *Provider) {
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pvd.Watch = true
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}
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func withDirectory(name string) func(*Provider) {
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return func(pvd *Provider) {
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pvd.Directory = name
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}
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}
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func withFile(tempFile *os.File) func(*Provider) {
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return func(p *Provider) {
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p.Filename = tempFile.Name()
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}
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}
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// createRandomFile Helper
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func createRandomFile(t *testing.T, tempDir string, contents ...string) *os.File {
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return createFile(t, tempDir, fmt.Sprintf("temp%d.toml", time.Now().UnixNano()), contents...)
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}
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// createFile Helper
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func createFile(t *testing.T, tempDir string, name string, contents ...string) *os.File {
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t.Helper()
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fileName := path.Join(tempDir, name)
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tempFile, err := os.Create(fileName)
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if err != nil {
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t.Fatal(err)
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}
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for _, content := range contents {
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_, err := tempFile.WriteString(content)
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if err != nil {
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t.Fatal(err)
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}
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}
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err = tempFile.Close()
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if err != nil {
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t.Fatal(err)
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}
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return tempFile
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}
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// createTempDir Helper
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func createTempDir(t *testing.T, dir string) string {
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t.Helper()
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d, err := ioutil.TempDir("", dir)
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if err != nil {
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t.Fatal(err)
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}
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return d
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}
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// createDir Helper
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func createSubDir(t *testing.T, rootDir, dir string) string {
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t.Helper()
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err := os.Mkdir(rootDir+"/"+dir, 0775)
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if err != nil {
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t.Fatal(err)
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}
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return rootDir + "/" + dir
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}
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// createFrontendConfiguration Helper
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func createFrontendConfiguration(n int) string {
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conf := "[frontends]\n"
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for i := 1; i <= n; i++ {
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conf += fmt.Sprintf(` [frontends.frontend%[1]d]
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backend = "backend%[1]d"
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`, i)
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}
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return conf
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}
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// createBackendConfiguration Helper
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func createBackendConfiguration(n int) string {
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conf := "[backends]\n"
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for i := 1; i <= n; i++ {
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conf += fmt.Sprintf(` [backends.backend%[1]d]
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[backends.backend%[1]d.servers.server1]
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url = "http://172.17.0.%[1]d:80"
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`, i)
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}
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return conf
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}
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// createTLS Helper
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func createTLS(n int) string {
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var conf string
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for i := 1; i <= n; i++ {
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conf += fmt.Sprintf(`[[TLS]]
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EntryPoints = ["https"]
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[TLS.Certificate]
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CertFile = "integration/fixtures/https/snitest%[1]d.com.cert"
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KeyFile = "integration/fixtures/https/snitest%[1]d.com.key"
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`, i)
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}
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return conf
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}
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