open-consul/testutil
James Phillips 424d70ba5d
Cleans up a stray mark and fixes unit tests.
Ended up removing the leader_test.go server address change test as part
of this. The join was failing becase we were using a new node name with
the new logic here, but realized this was hitting some of the memberlist
conflict logic and not working as we expected. We need some additional
work to fully support address changes, so removed the test for now.
2017-03-27 01:28:54 -07:00
..
README.md Reduce coupling with testing.T 2017-03-23 18:41:19 -04:00
server.go Cleans up a stray mark and fixes unit tests. 2017-03-27 01:28:54 -07:00
server_methods.go Reduce coupling with testing.T 2017-03-23 18:41:19 -04:00
server_wrapper.go Reduce coupling with testing.T 2017-03-23 18:41:19 -04:00
wait.go Makes WaitForResult always return an error if it times out. 2017-03-23 20:04:39 -07:00
wait_test.go Add test file for testutil 2014-05-07 23:42:15 +02:00

README.md

Consul Testing Utilities

This package provides some generic helpers to facilitate testing in Consul.

TestServer

TestServer is a harness for managing Consul agents and initializing them with test data. Using it, you can form test clusters, create services, add health checks, manipulate the K/V store, etc. This test harness is completely decoupled from Consul's core and API client, meaning it can be easily imported and used in external unit tests for various applications. It works by invoking the Consul CLI, which means it is a requirement to have Consul installed in the $PATH.

Following is an example usage:

package my_program

import (
	"testing"

	"github.com/hashicorp/consul/consul/structs"
	"github.com/hashicorp/consul/testutil"
)

func TestFoo_bar(t *testing.T) {
	// Create a test Consul server
	srv1, err := testutil.NewTestServer()
	if err != nil {
		t.Fatal(err)
	}
	defer srv1.Stop()

	// Create a secondary server, passing in configuration
	// to avoid bootstrapping as we are forming a cluster.
	srv2, err := testutil.NewTestServerConfig(t, func(c *testutil.TestServerConfig) {
		c.Bootstrap = false
	})
	if err != nil {
		t.Fatal(err)
	}
	defer srv2.Stop()

	// Join the servers together
	srv1.JoinLAN(t, srv2.LANAddr)

	// Create a test key/value pair
	srv1.SetKV(t, "foo", []byte("bar"))

	// Create lots of test key/value pairs
	srv1.PopulateKV(t, map[string][]byte{
		"bar": []byte("123"),
		"baz": []byte("456"),
	})

	// Create a service
	srv1.AddService(t, "redis", structs.HealthPassing, []string{"master"})

	// Create a service check
	srv1.AddCheck(t, "service:redis", "redis", structs.HealthPassing)

	// Create a node check
	srv1.AddCheck(t, "mem", "", structs.HealthCritical)

	// The HTTPAddr field contains the address of the Consul
	// API on the new test server instance.
	println(srv1.HTTPAddr)

	// All functions also have a wrapper method to limit the passing of "t"
	wrap := srv1.Wrap(t)
	wrap.SetKV("foo", []byte("bar"))
}