(QOL) Improve test setup for logger, improve test coverage for database (#447)

* Improved test setup for logger, improved test coverage for database

* removed some new lines

* add new line

* removed database config detailS

* removed lines

* code cleanup

database/repository/script/script_test.go

@@ -0,0 +1,112 @@
+package script
+
+import (
+	"fmt"
+	"io/ioutil"
+	"os"
+	"path/filepath"
+	"sync"
+	"testing"
+	"time"
+
+	"github.com/thrasher-corp/gocryptotrader/database"
+	"github.com/thrasher-corp/gocryptotrader/database/drivers"
+	"github.com/thrasher-corp/gocryptotrader/database/repository"
+	"github.com/thrasher-corp/gocryptotrader/database/testhelpers"
+	"github.com/thrasher-corp/goose"
+	"github.com/volatiletech/null"
+)
+
+func TestMain(m *testing.M) {
+	var err error
+	testhelpers.PostgresTestDatabase = testhelpers.GetConnectionDetails()
+	testhelpers.TempDir, err = ioutil.TempDir("", "gct-temp")
+	if err != nil {
+		fmt.Printf("failed to create temp file: %v", err)
+		os.Exit(1)
+	}
+
+	t := m.Run()
+
+	err = os.RemoveAll(testhelpers.TempDir)
+	if err != nil {
+		fmt.Printf("Failed to remove temp db file: %v", err)
+	}
+
+	os.Exit(t)
+}
+
+func TestScript(t *testing.T) {
+	testCases := []struct {
+		name   string
+		config *database.Config
+		runner func()
+		closer func(dbConn *database.Db) error
+		output interface{}
+	}{
+		{
+			"SQLite-Write",
+			&database.Config{
+				Driver:            database.DBSQLite3,
+				ConnectionDetails: drivers.ConnectionDetails{Database: "./testdb"},
+			},
+
+			writeScript,
+			testhelpers.CloseDatabase,
+			nil,
+		},
+		{
+			"Postgres-Write",
+			testhelpers.PostgresTestDatabase,
+			writeScript,
+			nil,
+			nil,
+		},
+	}
+
+	for _, tests := range testCases {
+		test := tests
+		t.Run(test.name, func(t *testing.T) {
+			if !testhelpers.CheckValidConfig(&test.config.ConnectionDetails) {
+				t.Skip("database not configured skipping test")
+			}
+
+			dbConn, err := testhelpers.ConnectToDatabase(test.config)
+			if err != nil {
+				t.Fatal(err)
+			}
+
+			path := filepath.Join("..", "..", "migrations")
+			err = goose.Run("up", dbConn.SQL, repository.GetSQLDialect(), path, "")
+			if err != nil {
+				t.Fatalf("failed to run migrations %v", err)
+			}
+
+			if test.runner != nil {
+				test.runner()
+			}
+
+			if test.closer != nil {
+				err = test.closer(dbConn)
+				if err != nil {
+					t.Log(err)
+				}
+			}
+		})
+	}
+}
+
+func writeScript() {
+	var wg sync.WaitGroup
+	for x := 0; x < 20; x++ {
+		wg.Add(1)
+
+		go func(x int) {
+			defer wg.Done()
+			test := fmt.Sprintf("test-%v", x)
+			var data null.Bytes
+			Event(test, test, test, data, test, test, time.Now())
+		}(x)
+	}
+	wg.Wait()
+}