docdb/integration/dbstats_scale_test.go

// Copyright 2021 DocDB Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package integration

import (
	"math"
	"testing"

	"github.com/stretchr/testify/require"
	"go.mongodb.org/mongo-driver/bson"
	"go.mongodb.org/mongo-driver/mongo"

	"github.com/hanzoai/docdb/integration/setup"
)

func TestDBStatsScale(tt *testing.T) {
	tt.Parallel()

	ctx, collection := setup.Setup(tt)

	testCases := map[string]struct { //nolint:vet // for readability
		scale      any
		err        mongo.CommandError
		altMessage string // optional, alternative error message for DocDB, ignored if empty
	}{
		"Zero": {
			scale: int32(0),
			err: mongo.CommandError{
				Name:    "BadValue",
				Code:    2,
				Message: "Scale factor must be greater than zero",
			},
			altMessage: "BSON field 'scale' value must be >= 1, actual value '0'",
		},
		"Negative": {
			scale: int32(-100),
			err: mongo.CommandError{
				Name:    "BadValue",
				Code:    2,
				Message: "Scale factor must be greater than zero",
			},
			altMessage: "BSON field 'scale' value must be >= 1, actual value '-100'",
		},
		"MinFloat": {
			scale: -math.MaxFloat64,
			err: mongo.CommandError{
				Name:    "BadValue",
				Code:    2,
				Message: "Scale factor must be greater than zero",
			},
			altMessage: "BSON field 'scale' value must be >= 1, actual value '-9223372036854775808'",
		},
		"String": {
			scale: "1",
			err: mongo.CommandError{
				Name:    "TypeMismatch",
				Code:    14,
				Message: "BSON field 'dbStats.scale' is the wrong type 'string', expected types '[long, int, decimal, double']",
			},
			altMessage: "BSON field 'dbStats.scale' is the wrong type 'string', expected types '[long, int, decimal, double]'",
		},
		"Object": {
			scale: bson.D{{"a", 1}},
			err: mongo.CommandError{
				Name:    "TypeMismatch",
				Code:    14,
				Message: "BSON field 'dbStats.scale' is the wrong type 'object', expected types '[long, int, decimal, double']",
			},
			altMessage: "BSON field 'dbStats.scale' is the wrong type 'object', expected types '[long, int, decimal, double]'",
		},
	}

	for name, tc := range testCases {
		tt.Run(name, func(tt *testing.T) {
			tt.Parallel()

			t := setup.FailsForDocDB(tt, "https://github.com/hanzoai/docdb/issues/3852")

			err := collection.Database().RunCommand(ctx, bson.D{{"dbStats", int32(1)}, {"scale", tc.scale}}).Err()
			require.Error(t, err)
			AssertEqualAltCommandError(t, tc.err, tc.altMessage, err)
		})
	}
}