Add unit test for helper function of sql execution store (cadence-wor…

…kflow#5707)

common/persistence/sql/sql_execution_store_test.go

@@ -32,9 +32,11 @@ import (
 	"github.com/stretchr/testify/require"
 
 	"github.com/uber/cadence/common"
+	"github.com/uber/cadence/common/log/testlogger"
 	"github.com/uber/cadence/common/persistence"
 	"github.com/uber/cadence/common/persistence/serialization"
 	"github.com/uber/cadence/common/persistence/sql/sqlplugin"
+	"github.com/uber/cadence/common/types"
 )
 
 func TestDeleteCurrentWorkflowExecution(t *testing.T) {
@@ -1883,3 +1885,73 @@ func TestDeleteWorkflowExecution(t *testing.T) {
 		})
 	}
 }
+
+func TestTxExecuteShardLocked(t *testing.T) {
+	tests := []struct {
+		name      string
+		mockSetup func(*sqlplugin.MockDB, *sqlplugin.MockTx)
+		operation string
+		rangeID   int64
+		fn        func(sqlplugin.Tx) error
+		wantError error
+	}{
+		{
+			name: "Success",
+			mockSetup: func(mockDB *sqlplugin.MockDB, mockTx *sqlplugin.MockTx) {
+				mockDB.EXPECT().BeginTx(gomock.Any(), gomock.Any()).Return(mockTx, nil)
+				mockTx.EXPECT().ReadLockShards(gomock.Any(), gomock.Any()).Return(11, nil)
+				mockTx.EXPECT().Commit().Return(nil)
+			},
+			operation: "Insert",
+			rangeID:   11,
+			fn:        func(sqlplugin.Tx) error { return nil },
+			wantError: nil,
+		},
+		{
+			name: "Error",
+			mockSetup: func(mockDB *sqlplugin.MockDB, mockTx *sqlplugin.MockTx) {
+				mockDB.EXPECT().BeginTx(gomock.Any(), gomock.Any()).Return(mockTx, nil)
+				mockTx.EXPECT().ReadLockShards(gomock.Any(), gomock.Any()).Return(11, nil)
+				mockTx.EXPECT().Rollback().Return(nil)
+				mockDB.EXPECT().IsNotFoundError(gomock.Any()).Return(false)
+				mockDB.EXPECT().IsTimeoutError(gomock.Any()).Return(false)
+				mockDB.EXPECT().IsThrottlingError(gomock.Any()).Return(false)
+			},
+			operation: "Insert",
+			rangeID:   11,
+			fn:        func(sqlplugin.Tx) error { return errors.New("error") },
+			wantError: &types.InternalServiceError{Message: "Insert operation failed.  Error: error"},
+		},
+		{
+			name: "Error - shard ownership lost",
+			mockSetup: func(mockDB *sqlplugin.MockDB, mockTx *sqlplugin.MockTx) {
+				mockDB.EXPECT().BeginTx(gomock.Any(), gomock.Any()).Return(mockTx, nil)
+				mockTx.EXPECT().ReadLockShards(gomock.Any(), gomock.Any()).Return(12, nil)
+				mockTx.EXPECT().Rollback().Return(nil)
+			},
+			operation: "Insert",
+			rangeID:   11,
+			fn:        func(sqlplugin.Tx) error { return errors.New("error") },
+			wantError: &persistence.ShardOwnershipLostError{ShardID: 0, Msg: "Failed to lock shard. Previous range ID: 11; new range ID: 12"},
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			ctrl := gomock.NewController(t)
+			mockDB := sqlplugin.NewMockDB(ctrl)
+			mockTx := sqlplugin.NewMockTx(ctrl)
+			tt.mockSetup(mockDB, mockTx)
+
+			s := &sqlExecutionStore{
+				shardID: 0,
+				sqlStore: sqlStore{
+					db:     mockDB,
+					logger: testlogger.New(t),
+				},
+			}
+
+			gotError := s.txExecuteShardLocked(context.Background(), 0, tt.operation, tt.rangeID, tt.fn)
+			assert.Equal(t, tt.wantError, gotError)
+		})
+	}
+}