migrations: add a simple test that runs the migrations (for mariadb)

migrations/migrate_test.go

@@ -0,0 +1,53 @@
+package migrations
+
+import (
+	"context"
+	"testing"
+
+	"github.com/R-a-dio/valkyrie/config"
+	"github.com/golang-migrate/migrate/v4"
+	"github.com/stretchr/testify/require"
+	"github.com/testcontainers/testcontainers-go"
+	"github.com/testcontainers/testcontainers-go/modules/mariadb"
+)
+
+func TestCheckVersion(t *testing.T) {
+	ctx := context.Background()
+
+	testcontainers.Logger = testcontainers.TestLogger(t)
+
+	// setup a container to test in
+	container, err := mariadb.RunContainer(ctx,
+		testcontainers.WithImage("mariadb:latest"),
+		mariadb.WithDatabase("test"),
+		mariadb.WithUsername("root"),
+		mariadb.WithPassword(""),
+	)
+	require.NoError(t, err, "failed setting up container")
+
+	cfg, err := config.LoadFile()
+	require.NoError(t, err)
+
+	dsn, err := container.ConnectionString(ctx)
+	require.NoError(t, err)
+
+	c := cfg.Conf()
+	c.Database.DSN = dsn
+	cfg.StoreConf(c)
+
+	// first CheckVersion, should fail because no migrations have been ran yet
+	err = CheckVersion(ctx, cfg)
+	require.Error(t, err)
+	require.ErrorIs(t, err, migrate.ErrNilVersion)
+
+	migr, err := New(ctx, cfg)
+	require.NoError(t, err)
+
+	// now run all the migrations
+	err = migr.Up()
+	require.NoError(t, err)
+
+	// then CheckVersion again that should succeed
+	err = CheckVersion(ctx, cfg)
+	require.NoError(t, err)
+}