Enhance integration tests

* refactor: remove unused code.
* refactor: factorize Traefik cmd start.
* refactor(whitelist): minor change.
* refactor(accesslog): better use of checker.
* refactor(errorpages): factorize containers IP variables.
* refactor(integration): refactor cmdTraefikWithConfigFile.

integration/access_log_test.go

@@ -7,15 +7,12 @@ import (
 	"net/http"
 	"net/http/httptest"
 	"os"
-	"os/exec"
-	"regexp"
 	"strings"
 	"time"
 
 	"github.com/containous/traefik/integration/try"
 	"github.com/go-check/check"
-	shellwords "github.com/mattn/go-shellwords"
+	"github.com/mattn/go-shellwords"
-
 	checker "github.com/vdemeester/shakers"
 )
 
@@ -28,7 +25,7 @@ func (s *AccessLogSuite) TestAccessLog(c *check.C) {
 	os.Remove("traefik.log")
 
 	// Start Traefik
-	cmd := exec.Command(traefikBinary, "--configFile=fixtures/access_log_config.toml")
+	cmd, _ := s.cmdTraefik(withConfigFile("fixtures/access_log_config.toml"))
 	err := cmd.Start()
 	c.Assert(err, checker.IsNil)
 	defer cmd.Process.Kill()
@@ -49,7 +46,7 @@ func (s *AccessLogSuite) TestAccessLog(c *check.C) {
 	c.Assert(err, checker.IsNil)
 	if len(traefikLog) > 0 {
 		fmt.Printf("%s\n", string(traefikLog))
-		c.Assert(len(traefikLog), checker.Equals, 0)
+		c.Assert(traefikLog, checker.HasLen, 0)
 	}
 
 	// Start test servers
@@ -78,12 +75,12 @@ func (s *AccessLogSuite) TestAccessLog(c *check.C) {
 			count++
 			tokens, err := shellwords.Parse(line)
 			c.Assert(err, checker.IsNil)
-			c.Assert(len(tokens), checker.Equals, 14)
+			c.Assert(tokens, checker.HasLen, 14)
-			c.Assert(regexp.MustCompile(`^\d{3}$`).MatchString(tokens[6]), checker.True)
+			c.Assert(tokens[6], checker.Matches, `^\d{3}$`)
 			c.Assert(tokens[10], checker.Equals, fmt.Sprintf("%d", i+1))
-			c.Assert(strings.HasPrefix(tokens[11], "frontend"), checker.True)
+			c.Assert(tokens[11], checker.HasPrefix, "frontend")
-			c.Assert(strings.HasPrefix(tokens[12], "http://127.0.0.1:808"), checker.True)
+			c.Assert(tokens[12], checker.HasPrefix, "http://127.0.0.1:808")
-			c.Assert(regexp.MustCompile(`^\d+ms$`).MatchString(tokens[13]), checker.True)
+			c.Assert(tokens[13], checker.Matches, `^\d+ms$`)
 		}
 	}
 	c.Assert(count, checker.GreaterOrEqualThan, 3)
@@ -93,7 +90,7 @@ func (s *AccessLogSuite) TestAccessLog(c *check.C) {
 	c.Assert(err, checker.IsNil)
 	if len(traefikLog) > 0 {
 		fmt.Printf("%s\n", string(traefikLog))
-		c.Assert(len(traefikLog), checker.Equals, 0)
+		c.Assert(traefikLog, checker.HasLen, 0)
 	}
 }
 

integration/acme_test.go

@@ -102,7 +102,7 @@ func (s *AcmeSuite) retrieveAcmeCertificate(c *check.C, testCase AcmeTestCase) {
 		OnHostRule:  !testCase.onDemand,
 	})
 
-	cmd, output := s.cmdTraefikWithConfigFile(file)
+	cmd, output := s.cmdTraefik(withConfigFile(file))
 	err := cmd.Start()
 	c.Assert(err, checker.IsNil)
 	defer cmd.Process.Kill()

integration/basic_test.go

@@ -1,10 +1,8 @@
 package integration
 
 import (
-	"bytes"
 	"fmt"
 	"net/http"
-	"os/exec"
 	"strings"
 	"time"
 
@@ -17,11 +15,7 @@ import (
 type SimpleSuite struct{ BaseSuite }
 
 func (s *SimpleSuite) TestInvalidConfigShouldFail(c *check.C) {
-	cmd := exec.Command(traefikBinary, "--configFile=fixtures/invalid_configuration.toml")
+	cmd, output := s.cmdTraefik(withConfigFile("fixtures/invalid_configuration.toml"))
-
-	var b bytes.Buffer
-	cmd.Stdout = &b
-	cmd.Stderr = &b
 
 	err := cmd.Start()
 	c.Assert(err, checker.IsNil)
@@ -29,7 +23,7 @@ func (s *SimpleSuite) TestInvalidConfigShouldFail(c *check.C) {
 
 	err = try.Do(500*time.Millisecond, func() error {
 		expected := "Near line 0 (last key parsed ''): bare keys cannot contain '{'"
-		actual := b.String()
+		actual := output.String()
 
 		if !strings.Contains(actual, expected) {
 			return fmt.Errorf("Got %s, wanted %s", actual, expected)
@@ -41,7 +35,7 @@ func (s *SimpleSuite) TestInvalidConfigShouldFail(c *check.C) {
 }
 
 func (s *SimpleSuite) TestSimpleDefaultConfig(c *check.C) {
-	cmd := exec.Command(traefikBinary, "--configFile=fixtures/simple_default.toml")
+	cmd, _ := s.cmdTraefik(withConfigFile("fixtures/simple_default.toml"))
 
 	err := cmd.Start()
 	c.Assert(err, checker.IsNil)
@@ -54,7 +48,7 @@ func (s *SimpleSuite) TestSimpleDefaultConfig(c *check.C) {
 }
 
 func (s *SimpleSuite) TestWithWebConfig(c *check.C) {
-	cmd := exec.Command(traefikBinary, "--configFile=fixtures/simple_web.toml")
+	cmd, _ := s.cmdTraefik(withConfigFile("fixtures/simple_web.toml"))
 
 	err := cmd.Start()
 	c.Assert(err, checker.IsNil)
@@ -65,11 +59,7 @@ func (s *SimpleSuite) TestWithWebConfig(c *check.C) {
 }
 
 func (s *SimpleSuite) TestDefaultEntryPoints(c *check.C) {
-	cmd := exec.Command(traefikBinary, "--debug")
+	cmd, output := s.cmdTraefik("--debug")
-
-	var b bytes.Buffer
-	cmd.Stdout = &b
-	cmd.Stderr = &b
 
 	err := cmd.Start()
 	c.Assert(err, checker.IsNil)
@@ -77,7 +67,7 @@ func (s *SimpleSuite) TestDefaultEntryPoints(c *check.C) {
 
 	err = try.Do(500*time.Millisecond, func() error {
 		expected := "\"DefaultEntryPoints\":[\"http\"]"
-		actual := b.String()
+		actual := output.String()
 
 		if !strings.Contains(actual, expected) {
 			return fmt.Errorf("Got %s, wanted %s", actual, expected)
@@ -89,11 +79,7 @@ func (s *SimpleSuite) TestDefaultEntryPoints(c *check.C) {
 }
 
 func (s *SimpleSuite) TestPrintHelp(c *check.C) {
-	cmd := exec.Command(traefikBinary, "--help")
+	cmd, output := s.cmdTraefik("--help")
-
-	var b bytes.Buffer
-	cmd.Stdout = &b
-	cmd.Stderr = &b
 
 	err := cmd.Start()
 	c.Assert(err, checker.IsNil)
@@ -102,7 +88,7 @@ func (s *SimpleSuite) TestPrintHelp(c *check.C) {
 	err = try.Do(500*time.Millisecond, func() error {
 		expected := "Usage:"
 		notExpected := "panic:"
-		actual := b.String()
+		actual := output.String()
 
 		if strings.Contains(actual, notExpected) {
 			return fmt.Errorf("Got %s", actual)

integration/constraint_test.go

@@ -3,7 +3,6 @@ package integration
 import (
 	"fmt"
 	"net/http"
-	"os/exec"
 	"time"
 
 	"github.com/containous/traefik/integration/try"
@@ -81,11 +80,11 @@ func (s *ConstraintSuite) deregisterService(name string, address string) error {
 }
 
 func (s *ConstraintSuite) TestMatchConstraintGlobal(c *check.C) {
-	cmd := exec.Command(traefikBinary,
+	cmd, _ := s.cmdTraefik(
+		withConfigFile("fixtures/consul_catalog/simple.toml"),
 		"--consulCatalog",
 		"--consulCatalog.endpoint="+s.consulIP+":8500",
 		"--consulCatalog.domain=consul.localhost",
-		"--configFile=fixtures/consul_catalog/simple.toml",
 		"--constraints=tag==api")
 	err := cmd.Start()
 	c.Assert(err, checker.IsNil)
@@ -106,11 +105,11 @@ func (s *ConstraintSuite) TestMatchConstraintGlobal(c *check.C) {
 }
 
 func (s *ConstraintSuite) TestDoesNotMatchConstraintGlobal(c *check.C) {
-	cmd := exec.Command(traefikBinary,
+	cmd, _ := s.cmdTraefik(
+		withConfigFile("fixtures/consul_catalog/simple.toml"),
 		"--consulCatalog",
 		"--consulCatalog.endpoint="+s.consulIP+":8500",
 		"--consulCatalog.domain=consul.localhost",
-		"--configFile=fixtures/consul_catalog/simple.toml",
 		"--constraints=tag==api")
 	err := cmd.Start()
 	c.Assert(err, checker.IsNil)
@@ -131,11 +130,11 @@ func (s *ConstraintSuite) TestDoesNotMatchConstraintGlobal(c *check.C) {
 }
 
 func (s *ConstraintSuite) TestMatchConstraintProvider(c *check.C) {
-	cmd := exec.Command(traefikBinary,
+	cmd, _ := s.cmdTraefik(
+		withConfigFile("fixtures/consul_catalog/simple.toml"),
 		"--consulCatalog",
 		"--consulCatalog.endpoint="+s.consulIP+":8500",
 		"--consulCatalog.domain=consul.localhost",
-		"--configFile=fixtures/consul_catalog/simple.toml",
 		"--consulCatalog.constraints=tag==api")
 	err := cmd.Start()
 	c.Assert(err, checker.IsNil)
@@ -156,11 +155,11 @@ func (s *ConstraintSuite) TestMatchConstraintProvider(c *check.C) {
 }
 
 func (s *ConstraintSuite) TestDoesNotMatchConstraintProvider(c *check.C) {
-	cmd := exec.Command(traefikBinary,
+	cmd, _ := s.cmdTraefik(
+		withConfigFile("fixtures/consul_catalog/simple.toml"),
 		"--consulCatalog",
 		"--consulCatalog.endpoint="+s.consulIP+":8500",
 		"--consulCatalog.domain=consul.localhost",
-		"--configFile=fixtures/consul_catalog/simple.toml",
 		"--consulCatalog.constraints=tag==api")
 	err := cmd.Start()
 	c.Assert(err, checker.IsNil)
@@ -181,11 +180,11 @@ func (s *ConstraintSuite) TestDoesNotMatchConstraintProvider(c *check.C) {
 }
 
 func (s *ConstraintSuite) TestMatchMultipleConstraint(c *check.C) {
-	cmd := exec.Command(traefikBinary,
+	cmd, _ := s.cmdTraefik(
+		withConfigFile("fixtures/consul_catalog/simple.toml"),
 		"--consulCatalog",
 		"--consulCatalog.endpoint="+s.consulIP+":8500",
 		"--consulCatalog.domain=consul.localhost",
-		"--configFile=fixtures/consul_catalog/simple.toml",
 		"--consulCatalog.constraints=tag==api",
 		"--constraints=tag!=us-*")
 	err := cmd.Start()
@@ -207,11 +206,11 @@ func (s *ConstraintSuite) TestMatchMultipleConstraint(c *check.C) {
 }
 
 func (s *ConstraintSuite) TestDoesNotMatchMultipleConstraint(c *check.C) {
-	cmd := exec.Command(traefikBinary,
+	cmd, _ := s.cmdTraefik(
+		withConfigFile("fixtures/consul_catalog/simple.toml"),
 		"--consulCatalog",
 		"--consulCatalog.endpoint="+s.consulIP+":8500",
 		"--consulCatalog.domain=consul.localhost",
-		"--configFile=fixtures/consul_catalog/simple.toml",
 		"--consulCatalog.constraints=tag==api",
 		"--constraints=tag!=us-*")
 	err := cmd.Start()

integration/consul_catalog_test.go

@@ -3,7 +3,6 @@ package integration
 import (
 	"fmt"
 	"net/http"
-	"os/exec"
 	"time"
 
 	"github.com/containous/traefik/integration/try"
@@ -81,10 +80,10 @@ func (s *ConsulCatalogSuite) deregisterService(name string, address string) erro
 }
 
 func (s *ConsulCatalogSuite) TestSimpleConfiguration(c *check.C) {
-	cmd := exec.Command(traefikBinary,
+	cmd, _ := s.cmdTraefik(
+		withConfigFile("fixtures/consul_catalog/simple.toml"),
 		"--consulCatalog",
-		"--consulCatalog.endpoint="+s.consulIP+":8500",
+		"--consulCatalog.endpoint="+s.consulIP+":8500")
-		"--configFile=fixtures/consul_catalog/simple.toml")
 	err := cmd.Start()
 	c.Assert(err, checker.IsNil)
 	defer cmd.Process.Kill()
@@ -96,11 +95,11 @@ func (s *ConsulCatalogSuite) TestSimpleConfiguration(c *check.C) {
 }
 
 func (s *ConsulCatalogSuite) TestSingleService(c *check.C) {
-	cmd := exec.Command(traefikBinary,
+	cmd, _ := s.cmdTraefik(
+		withConfigFile("fixtures/consul_catalog/simple.toml"),
 		"--consulCatalog",
 		"--consulCatalog.endpoint="+s.consulIP+":8500",
-		"--consulCatalog.domain=consul.localhost",
+		"--consulCatalog.domain=consul.localhost")
-		"--configFile=fixtures/consul_catalog/simple.toml")
 	err := cmd.Start()
 	c.Assert(err, checker.IsNil)
 	defer cmd.Process.Kill()

integration/consul_test.go

@@ -5,7 +5,6 @@ import (
 	"fmt"
 	"net/http"
 	"os"
-	"os/exec"
 	"sync"
 	"time"
 
@@ -96,7 +95,7 @@ func (s *ConsulSuite) TestSimpleConfiguration(c *check.C) {
 	file := s.adaptFile(c, "fixtures/consul/simple.toml", struct{ ConsulHost string }{consulHost})
 	defer os.Remove(file)
 
-	cmd := exec.Command(traefikBinary, "--configFile="+file)
+	cmd, _ := s.cmdTraefik(withConfigFile(file))
 	err := cmd.Start()
 	c.Assert(err, checker.IsNil)
 	defer cmd.Process.Kill()
@@ -112,7 +111,7 @@ func (s *ConsulSuite) TestNominalConfiguration(c *check.C) {
 	file := s.adaptFile(c, "fixtures/consul/simple.toml", struct{ ConsulHost string }{consulHost})
 	defer os.Remove(file)
 
-	cmd := exec.Command(traefikBinary, "--configFile="+file)
+	cmd, _ := s.cmdTraefik(withConfigFile(file))
 	err := cmd.Start()
 	c.Assert(err, checker.IsNil)
 	defer cmd.Process.Kill()
@@ -211,7 +210,10 @@ func (s *ConsulSuite) TestGlobalConfiguration(c *check.C) {
 	c.Assert(err, checker.IsNil)
 
 	// start traefik
-	cmd := exec.Command(traefikBinary, "--configFile=fixtures/simple_web.toml", "--consul", "--consul.endpoint="+consulHost+":8500")
+	cmd, _ := s.cmdTraefik(
+		withConfigFile("fixtures/simple_web.toml"),
+		"--consul",
+		"--consul.endpoint="+consulHost+":8500")
 
 	err = cmd.Start()
 	c.Assert(err, checker.IsNil)
@@ -295,8 +297,10 @@ func (s *ConsulSuite) skipTestGlobalConfigurationWithClientTLS(c *check.C) {
 	c.Assert(err, checker.IsNil)
 
 	// start traefik
-	cmd := exec.Command(traefikBinary, "--configFile=fixtures/simple_web.toml",
+	cmd, _ := s.cmdTraefik(
-		"--consul", "--consul.endpoint="+consulHost+":8585",
+		withConfigFile("fixtures/simple_web.toml"),
+		"--consul",
+		"--consul.endpoint="+consulHost+":8585",
 		"--consul.tls.ca=resources/tls/ca.cert",
 		"--consul.tls.cert=resources/tls/consul.cert",
 		"--consul.tls.key=resources/tls/consul.key",
@@ -315,9 +319,9 @@ func (s *ConsulSuite) TestCommandStoreConfig(c *check.C) {
 	s.setupConsul(c)
 	consulHost := s.composeProject.Container(c, "consul").NetworkSettings.IPAddress
 
-	cmd := exec.Command(traefikBinary,
+	cmd, _ := s.cmdTraefik(
 		"storeconfig",
-		"--configFile=fixtures/simple_web.toml",
+		withConfigFile("fixtures/simple_web.toml"),
 		"--consul.endpoint="+consulHost+":8500")
 	err := cmd.Start()
 	c.Assert(err, checker.IsNil)

integration/docker_test.go

@@ -6,7 +6,6 @@ import (
 	"io/ioutil"
 	"net/http"
 	"os"
-	"os/exec"
 	"strings"
 	"time"
 
@@ -80,7 +79,7 @@ func (s *DockerSuite) TestSimpleConfiguration(c *check.C) {
 	file := s.adaptFileForHost(c, "fixtures/docker/simple.toml")
 	defer os.Remove(file)
 
-	cmd := exec.Command(traefikBinary, "--configFile="+file)
+	cmd, _ := s.cmdTraefik(withConfigFile(file))
 	err := cmd.Start()
 	c.Assert(err, checker.IsNil)
 	defer cmd.Process.Kill()
@@ -97,7 +96,7 @@ func (s *DockerSuite) TestDefaultDockerContainers(c *check.C) {
 	name := s.startContainer(c, "swarm:1.0.0", "manage", "token://blablabla")
 
 	// Start traefik
-	cmd := exec.Command(traefikBinary, "--configFile="+file)
+	cmd, _ := s.cmdTraefik(withConfigFile(file))
 	err := cmd.Start()
 	c.Assert(err, checker.IsNil)
 	defer cmd.Process.Kill()
@@ -129,7 +128,7 @@ func (s *DockerSuite) TestDockerContainersWithLabels(c *check.C) {
 	s.startContainerWithLabels(c, "swarm:1.0.0", labels, "manage", "token://blabla")
 
 	// Start traefik
-	cmd := exec.Command(traefikBinary, "--configFile="+file)
+	cmd, _ := s.cmdTraefik(withConfigFile(file))
 	err := cmd.Start()
 	c.Assert(err, checker.IsNil)
 	defer cmd.Process.Kill()
@@ -161,7 +160,7 @@ func (s *DockerSuite) TestDockerContainersWithOneMissingLabels(c *check.C) {
 	s.startContainerWithLabels(c, "swarm:1.0.0", labels, "manage", "token://blabla")
 
 	// Start traefik
-	cmd := exec.Command(traefikBinary, "--configFile="+file)
+	cmd, _ := s.cmdTraefik(withConfigFile(file))
 	err := cmd.Start()
 	c.Assert(err, checker.IsNil)
 	defer cmd.Process.Kill()

integration/dynamodb_test.go

@@ -3,7 +3,6 @@ package integration
 import (
 	"net/http"
 	"os"
-	"os/exec"
 	"time"
 
 	"github.com/aws/aws-sdk-go/aws"
@@ -147,7 +146,7 @@ func (s *DynamoDBSuite) TestSimpleConfiguration(c *check.C) {
 	dynamoURL := "http://" + s.composeProject.Container(c, "dynamo").NetworkSettings.IPAddress + ":8000"
 	file := s.adaptFile(c, "fixtures/dynamodb/simple.toml", struct{ DynamoURL string }{dynamoURL})
 	defer os.Remove(file)
-	cmd := exec.Command(traefikBinary, "--configFile="+file)
+	cmd, _ := s.cmdTraefik(withConfigFile(file))
 	err := cmd.Start()
 	c.Assert(err, checker.IsNil)
 	defer cmd.Process.Kill()

integration/error_pages_test.go

@@ -3,7 +3,6 @@ package integration
 import (
 	"net/http"
 	"os"
-	"os/exec"
 	"time"
 
 	"github.com/containous/traefik/integration/try"
@@ -12,25 +11,29 @@ import (
 )
 
 // ErrorPagesSuite test suites (using libcompose)
-type ErrorPagesSuite struct{ BaseSuite }
+type ErrorPagesSuite struct {
-
+	BaseSuite
-func (ep *ErrorPagesSuite) SetUpSuite(c *check.C) {
+	ErrorPageIP string
-	ep.createComposeProject(c, "error_pages")
+	BackendIP   string
-	ep.composeProject.Start(c)
 }
 
-func (ep *ErrorPagesSuite) TestSimpleConfiguration(c *check.C) {
+func (s *ErrorPagesSuite) SetUpSuite(c *check.C) {
+	s.createComposeProject(c, "error_pages")
+	s.composeProject.Start(c)
 
-	errorPageHost := ep.composeProject.Container(c, "nginx2").NetworkSettings.IPAddress
+	s.ErrorPageIP = s.composeProject.Container(c, "nginx2").NetworkSettings.IPAddress
-	backendHost := ep.composeProject.Container(c, "nginx1").NetworkSettings.IPAddress
+	s.BackendIP = s.composeProject.Container(c, "nginx1").NetworkSettings.IPAddress
+}
 
-	file := ep.adaptFile(c, "fixtures/error_pages/simple.toml", struct {
+func (s *ErrorPagesSuite) TestSimpleConfiguration(c *check.C) {
+
+	file := s.adaptFile(c, "fixtures/error_pages/simple.toml", struct {
 		Server1 string
 		Server2 string
-	}{backendHost, errorPageHost})
+	}{s.BackendIP, s.ErrorPageIP})
 	defer os.Remove(file)
-	cmd := exec.Command(traefikBinary, "--configFile="+file)
 
+	cmd, _ := s.cmdTraefik(withConfigFile(file))
 	err := cmd.Start()
 	c.Assert(err, checker.IsNil)
 	defer cmd.Process.Kill()
@@ -43,19 +46,16 @@ func (ep *ErrorPagesSuite) TestSimpleConfiguration(c *check.C) {
 	c.Assert(err, checker.IsNil)
 }
 
-func (ep *ErrorPagesSuite) TestErrorPage(c *check.C) {
+func (s *ErrorPagesSuite) TestErrorPage(c *check.C) {
-
-	errorPageHost := ep.composeProject.Container(c, "nginx2").NetworkSettings.IPAddress
-	backendHost := ep.composeProject.Container(c, "nginx1").NetworkSettings.IPAddress
 
 	//error.toml contains a mis-configuration of the backend host
-	file := ep.adaptFile(c, "fixtures/error_pages/error.toml", struct {
+	file := s.adaptFile(c, "fixtures/error_pages/error.toml", struct {
 		Server1 string
 		Server2 string
-	}{backendHost, errorPageHost})
+	}{s.BackendIP, s.ErrorPageIP})
 	defer os.Remove(file)
-	cmd := exec.Command(traefikBinary, "--configFile="+file)
 
+	cmd, _ := s.cmdTraefik(withConfigFile(file))
 	err := cmd.Start()
 	c.Assert(err, checker.IsNil)
 	defer cmd.Process.Kill()

integration/etcd_test.go

@@ -5,7 +5,6 @@ import (
 	"io/ioutil"
 	"net/http"
 	"os"
-	"os/exec"
 	"strings"
 	"time"
 
@@ -61,9 +60,11 @@ func (s *EtcdSuite) TearDownSuite(c *check.C) {}
 
 func (s *EtcdSuite) TestSimpleConfiguration(c *check.C) {
 	etcdHost := s.composeProject.Container(c, "etcd").NetworkSettings.IPAddress
+
 	file := s.adaptFile(c, "fixtures/etcd/simple.toml", struct{ EtcdHost string }{etcdHost})
 	defer os.Remove(file)
-	cmd := exec.Command(traefikBinary, "--configFile="+file)
+
+	cmd, _ := s.cmdTraefik(withConfigFile(file))
 	err := cmd.Start()
 	c.Assert(err, checker.IsNil)
 	defer cmd.Process.Kill()
@@ -76,9 +77,11 @@ func (s *EtcdSuite) TestSimpleConfiguration(c *check.C) {
 
 func (s *EtcdSuite) TestNominalConfiguration(c *check.C) {
 	etcdHost := s.composeProject.Container(c, "etcd").NetworkSettings.IPAddress
+
 	file := s.adaptFile(c, "fixtures/etcd/simple.toml", struct{ EtcdHost string }{etcdHost})
 	defer os.Remove(file)
-	cmd := exec.Command(traefikBinary, "--configFile="+file)
+
+	cmd, _ := s.cmdTraefik(withConfigFile(file))
 	err := cmd.Start()
 	c.Assert(err, checker.IsNil)
 	defer cmd.Process.Kill()
@@ -196,8 +199,10 @@ func (s *EtcdSuite) TestGlobalConfiguration(c *check.C) {
 	c.Assert(err, checker.IsNil)
 
 	// start traefik
-	cmd := exec.Command(traefikBinary, "--configFile=fixtures/simple_web.toml", "--etcd", "--etcd.endpoint="+etcdHost+":4001")
+	cmd, _ := s.cmdTraefik(
-
+		withConfigFile("fixtures/simple_web.toml"),
+		"--etcd",
+		"--etcd.endpoint="+etcdHost+":4001")
 	err = cmd.Start()
 	c.Assert(err, checker.IsNil)
 	defer cmd.Process.Kill()
@@ -273,7 +278,10 @@ func (s *EtcdSuite) TestGlobalConfiguration(c *check.C) {
 func (s *EtcdSuite) TestCertificatesContentstWithSNIConfigHandshake(c *check.C) {
 	etcdHost := s.composeProject.Container(c, "etcd").NetworkSettings.IPAddress
 	// start traefik
-	cmd := exec.Command(traefikBinary, "--configFile=fixtures/simple_web.toml", "--etcd", "--etcd.endpoint="+etcdHost+":4001")
+	cmd, _ := s.cmdTraefik(
+		withConfigFile("fixtures/simple_web.toml"),
+		"--etcd",
+		"--etcd.endpoint="+etcdHost+":4001")
 
 	whoami1IP := s.composeProject.Container(c, "whoami1").NetworkSettings.IPAddress
 	whoami2IP := s.composeProject.Container(c, "whoami2").NetworkSettings.IPAddress
@@ -378,7 +386,10 @@ func (s *EtcdSuite) TestCertificatesContentstWithSNIConfigHandshake(c *check.C)
 func (s *EtcdSuite) TestCommandStoreConfig(c *check.C) {
 	etcdHost := s.composeProject.Container(c, "etcd").NetworkSettings.IPAddress
 
-	cmd := exec.Command(traefikBinary, "storeconfig", "--configFile=fixtures/simple_web.toml", "--etcd.endpoint="+etcdHost+":4001")
+	cmd, _ := s.cmdTraefik(
+		"storeconfig",
+		withConfigFile("fixtures/simple_web.toml"),
+		"--etcd.endpoint="+etcdHost+":4001")
 	err := cmd.Start()
 	c.Assert(err, checker.IsNil)
 

integration/eureka_test.go

@@ -4,7 +4,6 @@ import (
 	"bytes"
 	"net/http"
 	"os"
-	"os/exec"
 	"strings"
 	"text/template"
 	"time"
@@ -41,7 +40,7 @@ func (s *EurekaSuite) TestSimpleConfiguration(c *check.C) {
 
 	file := s.adaptFile(c, "fixtures/eureka/simple.toml", struct{ EurekaHost string }{s.eurekaIP})
 	defer os.Remove(file)
-	cmd := exec.Command(traefikBinary, "--configFile="+file)
+	cmd, _ := s.cmdTraefik(withConfigFile(file))
 	err := cmd.Start()
 	c.Assert(err, checker.IsNil)
 	defer cmd.Process.Kill()

integration/file_test.go

@@ -2,7 +2,6 @@ package integration
 
 import (
 	"net/http"
-	"os/exec"
 	"time"
 
 	"github.com/containous/traefik/integration/try"
@@ -20,7 +19,7 @@ func (s *FileSuite) SetUpSuite(c *check.C) {
 }
 
 func (s *FileSuite) TestSimpleConfiguration(c *check.C) {
-	cmd := exec.Command(traefikBinary, "--configFile=fixtures/file/simple.toml")
+	cmd, _ := s.cmdTraefik(withConfigFile("fixtures/file/simple.toml"))
 	err := cmd.Start()
 	c.Assert(err, checker.IsNil)
 	defer cmd.Process.Kill()
@@ -32,7 +31,7 @@ func (s *FileSuite) TestSimpleConfiguration(c *check.C) {
 
 // #56 regression test, make sure it does not fail
 func (s *FileSuite) TestSimpleConfigurationNoPanic(c *check.C) {
-	cmd := exec.Command(traefikBinary, "--configFile=fixtures/file/56-simple-panic.toml")
+	cmd, _ := s.cmdTraefik(withConfigFile("fixtures/file/56-simple-panic.toml"))
 	err := cmd.Start()
 	c.Assert(err, checker.IsNil)
 	defer cmd.Process.Kill()
@@ -43,7 +42,7 @@ func (s *FileSuite) TestSimpleConfigurationNoPanic(c *check.C) {
 }
 
 func (s *FileSuite) TestDirectoryConfiguration(c *check.C) {
-	cmd := exec.Command(traefikBinary, "--configFile=fixtures/file/directory.toml")
+	cmd, _ := s.cmdTraefik(withConfigFile("fixtures/file/directory.toml"))
 
 	err := cmd.Start()
 	c.Assert(err, checker.IsNil)

integration/healthcheck_test.go

@@ -4,7 +4,6 @@ import (
 	"bytes"
 	"net/http"
 	"os"
-	"os/exec"
 	"time"
 
 	"github.com/containous/traefik/integration/try"
@@ -30,8 +29,8 @@ func (s *HealthCheckSuite) TestSimpleConfiguration(c *check.C) {
 		Server2 string
 	}{whoami1Host, whoami2Host})
 	defer os.Remove(file)
-	cmd := exec.Command(traefikBinary, "--configFile="+file)
 
+	cmd, _ := s.cmdTraefik(withConfigFile(file))
 	err := cmd.Start()
 	c.Assert(err, checker.IsNil)
 	defer cmd.Process.Kill()

integration/https_test.go

@@ -20,7 +20,7 @@ type HTTPSSuite struct{ BaseSuite }
 // "snitest.com", which happens to match the CN of 'snitest.com.crt'. The test
 // verifies that traefik presents the correct certificate.
 func (s *HTTPSSuite) TestWithSNIConfigHandshake(c *check.C) {
-	cmd, _ := s.cmdTraefikWithConfigFile("fixtures/https/https_sni.toml")
+	cmd, _ := s.cmdTraefik(withConfigFile("fixtures/https/https_sni.toml"))
 	err := cmd.Start()
 	c.Assert(err, checker.IsNil)
 	defer cmd.Process.Kill()
@@ -53,7 +53,7 @@ func (s *HTTPSSuite) TestWithSNIConfigHandshake(c *check.C) {
 // SNI hostnames of "snitest.org" and "snitest.com". The test verifies
 // that traefik routes the requests to the expected backends.
 func (s *HTTPSSuite) TestWithSNIConfigRoute(c *check.C) {
-	cmd, _ := s.cmdTraefikWithConfigFile("fixtures/https/https_sni.toml")
+	cmd, _ := s.cmdTraefik(withConfigFile("fixtures/https/https_sni.toml"))
 	err := cmd.Start()
 	c.Assert(err, checker.IsNil)
 	defer cmd.Process.Kill()
@@ -111,7 +111,7 @@ func (s *HTTPSSuite) TestWithSNIConfigRoute(c *check.C) {
 // TestWithClientCertificateAuthentication
 // The client has to send a certificate signed by a CA trusted by the server
 func (s *HTTPSSuite) TestWithClientCertificateAuthentication(c *check.C) {
-	cmd, _ := s.cmdTraefikWithConfigFile("fixtures/https/clientca/https_1ca1config.toml")
+	cmd, _ := s.cmdTraefik(withConfigFile("fixtures/https/clientca/https_1ca1config.toml"))
 	err := cmd.Start()
 	c.Assert(err, checker.IsNil)
 	defer cmd.Process.Kill()
@@ -157,7 +157,7 @@ func (s *HTTPSSuite) TestWithClientCertificateAuthentication(c *check.C) {
 // TestWithClientCertificateAuthentication
 // Use two CA:s and test that clients with client signed by either of them can connect
 func (s *HTTPSSuite) TestWithClientCertificateAuthenticationMultipeCAs(c *check.C) {
-	cmd, _ := s.cmdTraefikWithConfigFile("fixtures/https/clientca/https_2ca1config.toml")
+	cmd, _ := s.cmdTraefik(withConfigFile("fixtures/https/clientca/https_2ca1config.toml"))
 	err := cmd.Start()
 	c.Assert(err, checker.IsNil)
 	defer cmd.Process.Kill()
@@ -216,7 +216,7 @@ func (s *HTTPSSuite) TestWithClientCertificateAuthenticationMultipeCAs(c *check.
 // TestWithClientCertificateAuthentication
 // Use two CA:s in two different files and test that clients with client signed by either of them can connect
 func (s *HTTPSSuite) TestWithClientCertificateAuthenticationMultipeCAsMultipleFiles(c *check.C) {
-	cmd, _ := s.cmdTraefikWithConfigFile("fixtures/https/clientca/https_2ca2config.toml")
+	cmd, _ := s.cmdTraefik(withConfigFile("fixtures/https/clientca/https_2ca2config.toml"))
 	err := cmd.Start()
 	c.Assert(err, checker.IsNil)
 	defer cmd.Process.Kill()
@@ -280,7 +280,7 @@ func (s *HTTPSSuite) TestWithRootCAsContentForHTTPSOnBackend(c *check.C) {
 
 	file := s.adaptFile(c, "fixtures/https/rootcas/https.toml", struct{ BackendHost string }{backend.URL})
 	defer os.Remove(file)
-	cmd, _ := s.cmdTraefikWithConfigFile(file)
+	cmd, _ := s.cmdTraefik(withConfigFile(file))
 	err := cmd.Start()
 	c.Assert(err, checker.IsNil)
 	defer cmd.Process.Kill()
@@ -301,7 +301,7 @@ func (s *HTTPSSuite) TestWithRootCAsFileForHTTPSOnBackend(c *check.C) {
 
 	file := s.adaptFile(c, "fixtures/https/rootcas/https_with_file.toml", struct{ BackendHost string }{backend.URL})
 	defer os.Remove(file)
-	cmd, _ := s.cmdTraefikWithConfigFile(file)
+	cmd, _ := s.cmdTraefik(withConfigFile(file))
 	err := cmd.Start()
 	c.Assert(err, checker.IsNil)
 	defer cmd.Process.Kill()

integration/integration_test.go

@@ -12,7 +12,6 @@ import (
 	"testing"
 	"text/template"
 
-	"github.com/containous/traefik/integration/utils"
 	"github.com/go-check/check"
 	compose "github.com/libkermit/compose/check"
 	checker "github.com/vdemeester/shakers"
@@ -72,15 +71,8 @@ func (s *BaseSuite) createComposeProject(c *check.C, name string) {
 	s.composeProject = compose.CreateProject(c, projectName, composeFile)
 }
 
-// Deprecated: unused
+func withConfigFile(file string) string {
-func (s *BaseSuite) traefikCmd(c *check.C, args ...string) (*exec.Cmd, string) {
+	return "--configFile=" + file
-	cmd, out, err := utils.RunCommand(traefikBinary, args...)
-	c.Assert(err, checker.IsNil, check.Commentf("Fail to run %s with %v", traefikBinary, args))
-	return cmd, out
-}
-
-func (s *BaseSuite) cmdTraefikWithConfigFile(file string) (*exec.Cmd, *bytes.Buffer) {
-	return s.cmdTraefik("--configFile=" + file)
 }
 
 func (s *BaseSuite) cmdTraefik(args ...string) (*exec.Cmd, *bytes.Buffer) {

integration/marathon_test.go

@@ -2,7 +2,6 @@ package integration
 
 import (
 	"net/http"
-	"os/exec"
 	"time"
 
 	"github.com/containous/traefik/integration/try"
@@ -41,7 +40,7 @@ func (s *MarathonSuite) SetUpSuite(c *check.C) {
 }
 
 func (s *MarathonSuite) TestSimpleConfiguration(c *check.C) {
-	cmd := exec.Command(traefikBinary, "--configFile=fixtures/marathon/simple.toml")
+	cmd, _ := s.cmdTraefik(withConfigFile("fixtures/marathon/simple.toml"))
 	err := cmd.Start()
 	c.Assert(err, checker.IsNil)
 	defer cmd.Process.Kill()

integration/mesos_test.go

@@ -2,7 +2,6 @@ package integration
 
 import (
 	"net/http"
-	"os/exec"
 	"time"
 
 	"github.com/containous/traefik/integration/try"
@@ -18,7 +17,7 @@ func (s *MesosSuite) SetUpSuite(c *check.C) {
 }
 
 func (s *MesosSuite) TestSimpleConfiguration(c *check.C) {
-	cmd := exec.Command(traefikBinary, "--configFile=fixtures/mesos/simple.toml")
+	cmd, _ := s.cmdTraefik(withConfigFile("fixtures/mesos/simple.toml"))
 	err := cmd.Start()
 	c.Assert(err, checker.IsNil)
 	defer cmd.Process.Kill()

integration/utils/traefikCmd.go

@@ -1,16 +0,0 @@
-package utils
-
-import (
-	"os/exec"
-)
-
-var execCommand = exec.Command
-
-// RunCommand runs the specified command with arguments and returns
-// the output and the error if any.
-func RunCommand(binary string, args ...string) (*exec.Cmd, string, error) {
-	cmd := execCommand(binary, args...)
-	out, err := cmd.CombinedOutput()
-	output := string(out)
-	return cmd, output, err
-}

integration/utils/traefikCmd_test.go

@@ -1,89 +0,0 @@
-package utils
-
-import (
-	"fmt"
-	"os"
-	"os/exec"
-	"strings"
-	"testing"
-)
-
-var traefikBinary = "traefik"
-
-func TestRunCommand(t *testing.T) {
-	// Override exec.Command :D
-	execCommand = fakeExecCommand
-	_, output, err := RunCommand(traefikBinary, "it", "works")
-	if err != nil {
-		t.Fatal(err)
-	}
-	if output != "it works" {
-		t.Fatalf("Expected 'it works' as output, got : %q", output)
-	}
-}
-
-func TestRunCommandError(t *testing.T) {
-	// Override exec.Command :D
-	execCommand = fakeExecCommand
-	_, output, err := RunCommand(traefikBinary, "an", "error")
-	if err == nil {
-		t.Fatalf("Expected an error, got %q", output)
-	}
-}
-
-// Helpers :)
-
-// Type implementing the io.Writer interface for analyzing output.
-type String struct {
-	value string
-}
-
-// The only function required by the io.Writer interface.  Will append
-// written data to the String.value string.
-func (s *String) Write(p []byte) (n int, err error) {
-	s.value += string(p)
-	return len(p), nil
-}
-
-// Helper function that mock the exec.Command call (and call the test binary)
-func fakeExecCommand(command string, args ...string) *exec.Cmd {
-	cs := []string{"-test.run=TestHelperProcess", "--", command}
-	cs = append(cs, args...)
-	cmd := exec.Command(os.Args[0], cs...)
-	cmd.Env = []string{"GO_WANT_HELPER_PROCESS=1"}
-	return cmd
-}
-
-func TestHelperProcess(t *testing.T) {
-	if os.Getenv("GO_WANT_HELPER_PROCESS") != "1" {
-		return
-	}
-	args := os.Args
-
-	// Previous arguments are tests stuff, that looks like :
-	// /tmp/go-build970079519/…/_test/integration.test -test.run=TestHelperProcess --
-	cmd, args := args[3], args[4:]
-	// Handle the case where args[0] is dir:...
-
-	switch cmd {
-	case traefikBinary:
-		argsStr := strings.Join(args, " ")
-		switch argsStr {
-		case "an exitCode 127":
-			fmt.Fprint(os.Stderr, "an error has occurred with exitCode 127")
-			os.Exit(127)
-		case "an error":
-			fmt.Fprint(os.Stderr, "an error has occurred")
-			os.Exit(1)
-		case "it works":
-			fmt.Fprint(os.Stdout, "it works")
-		default:
-			fmt.Fprint(os.Stdout, "no arguments")
-		}
-	default:
-		fmt.Fprintf(os.Stderr, "Command %s not found.", cmd)
-		os.Exit(1)
-	}
-	// some code here to check arguments perhaps?
-	os.Exit(0)
-}

middlewares/ip_whitelister.go

@@ -18,12 +18,13 @@ type IPWhitelister struct {
 
 // NewIPWhitelister builds a new IPWhitelister given a list of CIDR-Strings to whitelist
 func NewIPWhitelister(whitelistStrings []string) (*IPWhitelister, error) {
-	whitelister := IPWhitelister{}
 
 	if len(whitelistStrings) == 0 {
 		return nil, errors.New("no whitelists provided")
 	}
 
+	whitelister := IPWhitelister{}
+
 	for _, whitelistString := range whitelistStrings {
 		_, whitelist, err := net.ParseCIDR(whitelistString)
 		if err != nil {
@@ -65,6 +66,7 @@ func reject(w http.ResponseWriter) {
 	w.WriteHeader(statusCode)
 	w.Write([]byte(http.StatusText(statusCode)))
 }
+
 func ipFromRemoteAddr(addr string) (*net.IP, error) {
 	ip, _, err := net.SplitHostPort(addr)
 	if err != nil {