Also test against PostgreSQL

.sample.env

@@ -1 +1,2 @@
-SQLITE_CONN_STRING: :memory:
+SQLITE_CONN_STRING=:memory:
+PG_CONN_STRING="user=postgres dbname=gormigrate_test sslmode=disable"

Taskfile.yml

@@ -8,6 +8,10 @@ tasks:
     cmds:
       - go get -u github.com/golang/lint/golint
 
+  go-get-all:
+    cmds:
+      - go get -v -t -tags 'sqlite postgresql' ./...
+
   lint:
     desc: Runs golint on this project
     cmds:
@@ -19,6 +23,12 @@ tasks:
       - task: test
         vars: {DATABASE: sqlite}
 
+  test-pg:
+    desc: Run tests for PostgreSQL
+    cmds:
+      - task: test
+        vars: {DATABASE: postgresql}
+
   test:
     cmds:
       - go test -v -tags {{.DATABASE}}

gormigrate_test.go

@@ -145,6 +145,10 @@ func forEachDatabase(t *testing.T, fn func(database *gorm.DB)) {
 		assert.NoError(t, err, "Could not connect to database %s, %v", database.name, err)
 
 		defer db.Close()
+
+		// ensure tables do not exists
+		assert.NoError(t, db.DropTableIfExists("migrations", "people", "pets").Error)
+
 		fn(db)
 	}
 }

postgresql_test.go

@@ -0,0 +1,14 @@
+// +build postgresql
+
+package gormigrate
+
+import (
+	_ "github.com/jinzhu/gorm/dialects/postgres"
+)
+
+func init() {
+	databases = append(databases, database{
+		name:    "postgres",
+		connEnv: "PG_CONN_STRING",
+	})
+}