Add unit tests for registering release service with server

docker-compose.yaml

@@ -157,7 +157,7 @@ services:
     - AWS_ACCESS_KEY_ID
     - AWS_SECRET_ACCESS_KEY
     - AWS_DEFAULT_REGION
-    #- OTEL_EXPORTER_OTLP_ENDPOINT
+    - OTEL_EXPORTER_OTLP_ENDPOINT
     ports:
       - 50007:3001
     networks:

internal/release/services/release/release_test.go

@@ -0,0 +1,68 @@
+package release
+
+import (
+	"errors"
+	"testing"
+
+	"github.com/terrariumcloud/terrarium/internal/storage/mocks"
+
+	"google.golang.org/grpc"
+)
+
+// Test_RegisterReleaseWithServer checks:
+// - if there was no error with table init
+// - if error is returned when Table initialization fails
+func Test_RegisterReleaseWithServer(t *testing.T) {
+	t.Parallel()
+
+	t.Run("when there is no error with table init", func(t *testing.T) {
+		db := &mocks.DynamoDB{}
+
+		rs := &ReleaseService{
+			Db: db,
+		}
+
+		s := grpc.NewServer(*new([]grpc.ServerOption)...)
+
+		err := rs.RegisterWithServer(s)
+
+		if err != nil {
+			t.Errorf("Expected no error, got %v.", err)
+		}
+
+		if db.DescribeTableInvocations != 1 {
+			t.Errorf("Expected 1 call to DescribeTable, got %v.", db.DescribeTableInvocations)
+		}
+
+		if db.CreateTableInvocations != 0 {
+			t.Errorf("Expected no calls to CreateTable, got %v.", db.CreateTableInvocations)
+		}
+	})
+
+	t.Run("when Table initialization fails", func(t *testing.T) {
+
+		db := &mocks.DynamoDB{
+			DescribeTableErrors: []error{errors.New("some error")},
+		}
+
+		rs := &ReleaseService{
+			Db: db,
+		}
+
+		s := grpc.NewServer(*new([]grpc.ServerOption)...)
+
+		err := rs.RegisterWithServer(s)
+
+		if err != ReleaseTableInitializationError {
+			t.Errorf("Expected %v, got %v.", ReleaseTableInitializationError, err)
+		}
+
+		if db.DescribeTableInvocations != 1 {
+			t.Errorf("Expected 1 call to DescribeTable, got %v.", db.DescribeTableInvocations)
+		}
+
+		if db.CreateTableInvocations != 0 {
+			t.Errorf("Expected 0 calls to CreateTable, got %v.", db.CreateTableInvocations)
+		}
+	})
+}