Add l2 implementation

router/l2/l2_test.go

@@ -0,0 +1,47 @@
+package main
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestDirector(t *testing.T) {
+	addr, err := director("ip10-0-0-1-8080.foo.bar")
+	assert.Nil(t, err)
+	assert.Equal(t, "10.0.0.1:8080", addr.String())
+
+	addr, err = director("ip10-0-0-1.foo.bar")
+	assert.Nil(t, err)
+	assert.Equal(t, "10.0.0.1:80", addr.String())
+
+	addr, err = director("ip10-0-0-1.foo.bar:9090")
+	assert.Nil(t, err)
+	assert.Equal(t, "10.0.0.1:9090", addr.String())
+
+	addr, err = director("ip10-0-0-1-2222.foo.bar:9090")
+	assert.Nil(t, err)
+	assert.Equal(t, "10.0.0.1:2222", addr.String())
+
+	addr, err = director("lala.ip10-0-0-1-2222.foo.bar")
+	assert.Nil(t, err)
+	assert.Equal(t, "10.0.0.1:2222", addr.String())
+
+	addr, err = director("lala.ip10-0-0-1-2222")
+	assert.Nil(t, err)
+	assert.Equal(t, "10.0.0.1:2222", addr.String())
+
+	addr, err = director("ip10-0-0-1-2222")
+	assert.Nil(t, err)
+	assert.Equal(t, "10.0.0.1:2222", addr.String())
+
+	addr, err = director("ip10-0-0-1")
+	assert.Nil(t, err)
+	assert.Equal(t, "10.0.0.1:80", addr.String())
+
+	_, err = director("lala10-0-0-1.foo.bar")
+	assert.NotNil(t, err)
+
+	_, err = director("ip10-0-0-1-10-20")
+	assert.NotNil(t, err)
+}