chore(tests): add a simple test to serialize and insert a port into t…

…he db and ensure it is returned

internal/adapter/repository/memdb_repository_test.go

@@ -0,0 +1,55 @@
+package repository_test
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/willejs/ports-service/internal/adapter/repository"
+	"github.com/willejs/ports-service/internal/domain/entity"
+	"github.com/willejs/ports-service/internal/infrastructure/memdb"
+)
+
+func TestMemDBPortRepository_GetAllPorts(t *testing.T) {
+	db, err := memdb.NewMemDB()
+	assert.NoError(t, err)
+	// Create the repository
+	repo := repository.NewMemDBPortRepository(db)
+
+	// Create a new port
+	port := &entity.Port{
+		Name:        "Port of London",
+		City:        "London",
+		Country:     "United Kingdom",
+		Coordinates: []float64{51.5074, 0.1278},
+		Province:    "Greater London",
+		Timezone:    "Europe/London",
+		Unlocs:      []string{"GBLGP"},
+		Code:        "GBLGP",
+	}
+
+	uErr := repo.UpsertPort(port)
+	assert.NoError(t, uErr)
+
+	// Call the GetAllPorts method
+	ports, err := repo.GetAllPorts()
+
+	// Check if there was an error
+	assert.NoError(t, err)
+
+	assert.Len(t, ports, 1)
+
+	// Check if the returned ports are correct
+	expectedPorts := []*entity.Port{
+		{
+			Name:        "Port of London",
+			City:        "London",
+			Country:     "United Kingdom",
+			Coordinates: []float64{51.5074, 0.1278},
+			Province:    "Greater London",
+			Timezone:    "Europe/London",
+			Unlocs:      []string{"GBLGP"},
+			Code:        "GBLGP",
+		},
+	}
+	assert.Equal(t, expectedPorts, ports)
+}