use nicer assertions

go.mod

@@ -5,6 +5,7 @@ go 1.18
 require (
 	github.com/go-sql-driver/mysql v1.6.0
 	github.com/hooligram/kifu v1.2.4
+	github.com/stretchr/testify v1.7.2
 	github.com/testcontainers/testcontainers-go v0.11.1
 )
 
@@ -15,6 +16,7 @@ require (
 	github.com/cenkalti/backoff v2.2.1+incompatible // indirect
 	github.com/containerd/cgroups v0.0.0-20210114181951-8a68de567b68 // indirect
 	github.com/containerd/containerd v1.5.0-beta.4 // indirect
+	github.com/davecgh/go-spew v1.1.1 // indirect
 	github.com/docker/distribution v2.7.1+incompatible // indirect
 	github.com/docker/docker v20.10.7+incompatible // indirect
 	github.com/docker/go-connections v0.4.0 // indirect
@@ -31,13 +33,14 @@ require (
 	github.com/opencontainers/image-spec v1.0.1 // indirect
 	github.com/opencontainers/runc v1.0.0-rc93 // indirect
 	github.com/pkg/errors v0.9.1 // indirect
+	github.com/pmezard/go-difflib v1.0.0 // indirect
 	github.com/sirupsen/logrus v1.7.0 // indirect
-	github.com/stretchr/testify v1.7.2 // indirect
 	go.opencensus.io v0.22.3 // indirect
 	golang.org/x/net v0.0.0-20201224014010-6772e930b67b // indirect
 	golang.org/x/sys v0.0.0-20210324051608-47abb6519492 // indirect
 	google.golang.org/genproto v0.0.0-20201110150050-8816d57aaa9a // indirect
 	google.golang.org/grpc v1.33.2 // indirect
 	google.golang.org/protobuf v1.25.0 // indirect
 	gopkg.in/yaml.v2 v2.4.0 // indirect
+	gopkg.in/yaml.v3 v3.0.1 // indirect
 )

mysqltestcontainer/create.go

@@ -54,7 +54,7 @@ func Create(databaseName string) (*MySql, error) {
 		Password: rootPassword,
 		Ip:       host,
 		Port:     p,
-		Database: databaseName,
+		DbName:   databaseName,
 	}
 	return mySql, nil
 }

mysqltestcontainer/create_test.go

@@ -4,15 +4,21 @@ import (
 	"testing"
 
 	"github.com/arikama/go-mysql-test-container/mysqltestcontainer"
+	"github.com/stretchr/testify/assert"
 )
 
 func TestCreate(t *testing.T) {
 	mySql, err := mysqltestcontainer.Create("test")
-	if err != nil {
-		t.Errorf("Create failed: error=%v", err.Error())
-	}
+
+	assert.Nil(t, err)
+	assert.NotEmpty(t, mySql.Ip)
+	assert.NotEmpty(t, mySql.Port)
+	assert.NotEmpty(t, mySql.Username)
+	assert.NotEmpty(t, mySql.Password)
+	assert.NotEmpty(t, mySql.DbName)
+	assert.NotNil(t, mySql.Db)
+
 	err = mySql.Db.Ping()
-	if err != nil {
-		t.Errorf("Ping failed: error=%v", err.Error())
-	}
+
+	assert.Nil(t, err)
 }

mysqltestcontainer/my_sql.go

@@ -8,5 +8,5 @@ type MySql struct {
 	Password string
 	Ip       string
 	Port     string
-	Database string
+	DbName   string
 }