Add docker-compose healthcheck for test dependencies (#12)

.travis.yml

@@ -2,6 +2,12 @@ sudo: required
 services:
   - docker
 install:
+  - curl -fsSL https://github.com/docker/compose/releases/download/1.12.0/docker-compose-`uname -s`-`uname -m` > docker-compose
+  - chmod +x docker-compose
+  - sudo mv docker-compose /usr/local/bin/docker-compose
+  - docker-compose version
+  - docker-compose pull
+  - docker-compose build
   - docker-compose up -d
   - docker-compose run dbmate go version
 script:

Makefile

@@ -7,7 +7,9 @@ clean:
 	rm -rf dist
 
 container:
+	$(DC) pull
 	$(DC) build
+	$(DC) up -d
 
 lint:
 	$(DC) run dbmate golint

docker-compose.yml

@@ -1,13 +1,23 @@
+version: '2.1'
+services:
   dbmate:
     build: .
     volumes:
       - .:/go/src/github.com/amacneil/dbmate
-  links:
-    - mysql
-    - postgres
+    depends_on:
       mysql:
-  image: mysql:5.7
+        condition: service_healthy
+      postgres:
+        condition: service_healthy
+
+  mysql:
+    image: mysql
     environment:
       MYSQL_ROOT_PASSWORD: root
+    healthcheck:
+      test: ["CMD", "mysqladmin", "status", "-proot"]
+
   postgres:
-  image: postgres:9.4
+    image: postgres
+    healthcheck:
+      test: ["CMD", "pg_isready"]

mysql_test.go

@@ -3,23 +3,15 @@ package main
 import (
 	"database/sql"
 	"net/url"
-	"os"
 	"testing"
 
 	"github.com/stretchr/testify/require"
 )
 
 func mySQLTestURL(t *testing.T) *url.URL {
-	str := os.Getenv("MYSQL_PORT")
-	require.NotEmpty(t, str, "missing MYSQL_PORT environment variable")
-
-	u, err := url.Parse(str)
+	u, err := url.Parse("mysql://root:root@mysql:3306/dbmate")
 	require.Nil(t, err)
 
-	u.Scheme = "mysql"
-	u.User = url.UserPassword("root", "root")
-	u.Path = "/dbmate"
-
 	return u
 }
 

postgres_test.go

@@ -3,24 +3,15 @@ package main
 import (
 	"database/sql"
 	"net/url"
-	"os"
 	"testing"
 
 	"github.com/stretchr/testify/require"
 )
 
 func postgresTestURL(t *testing.T) *url.URL {
-	str := os.Getenv("POSTGRES_PORT")
-	require.NotEmpty(t, str, "missing POSTGRES_PORT environment variable")
-
-	u, err := url.Parse(str)
+	u, err := url.Parse("postgres://postgres:postgres@postgres/dbmate?sslmode=disable")
 	require.Nil(t, err)
 
-	u.Scheme = "postgres"
-	u.User = url.User("postgres")
-	u.Path = "/dbmate"
-	u.RawQuery = "sslmode=disable"
-
 	return u
 }