goext/mongo/bson/bsonrw/extjson_writer_test.go

261 lines
7.6 KiB
Go

// Copyright (C) MongoDB, Inc. 2017-present.
//
// 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
package bsonrw
import (
"fmt"
"io/ioutil"
"reflect"
"strings"
"testing"
"go.mongodb.org/mongo-driver/bson/bsontype"
"go.mongodb.org/mongo-driver/bson/primitive"
)
func TestExtJSONValueWriter(t *testing.T) {
oid := primitive.ObjectID{0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C}
testCases := []struct {
name string
fn interface{}
params []interface{}
}{
{
"WriteBinary",
(*extJSONValueWriter).WriteBinary,
[]interface{}{[]byte{0x01, 0x02, 0x03}},
},
{
"WriteBinaryWithSubtype (not 0x02)",
(*extJSONValueWriter).WriteBinaryWithSubtype,
[]interface{}{[]byte{0x01, 0x02, 0x03}, byte(0xFF)},
},
{
"WriteBinaryWithSubtype (0x02)",
(*extJSONValueWriter).WriteBinaryWithSubtype,
[]interface{}{[]byte{0x01, 0x02, 0x03}, byte(0x02)},
},
{
"WriteBoolean",
(*extJSONValueWriter).WriteBoolean,
[]interface{}{true},
},
{
"WriteDBPointer",
(*extJSONValueWriter).WriteDBPointer,
[]interface{}{"bar", oid},
},
{
"WriteDateTime",
(*extJSONValueWriter).WriteDateTime,
[]interface{}{int64(12345678)},
},
{
"WriteDecimal128",
(*extJSONValueWriter).WriteDecimal128,
[]interface{}{primitive.NewDecimal128(10, 20)},
},
{
"WriteDouble",
(*extJSONValueWriter).WriteDouble,
[]interface{}{float64(3.14159)},
},
{
"WriteInt32",
(*extJSONValueWriter).WriteInt32,
[]interface{}{int32(123456)},
},
{
"WriteInt64",
(*extJSONValueWriter).WriteInt64,
[]interface{}{int64(1234567890)},
},
{
"WriteJavascript",
(*extJSONValueWriter).WriteJavascript,
[]interface{}{"var foo = 'bar';"},
},
{
"WriteMaxKey",
(*extJSONValueWriter).WriteMaxKey,
[]interface{}{},
},
{
"WriteMinKey",
(*extJSONValueWriter).WriteMinKey,
[]interface{}{},
},
{
"WriteNull",
(*extJSONValueWriter).WriteNull,
[]interface{}{},
},
{
"WriteObjectID",
(*extJSONValueWriter).WriteObjectID,
[]interface{}{oid},
},
{
"WriteRegex",
(*extJSONValueWriter).WriteRegex,
[]interface{}{"bar", "baz"},
},
{
"WriteString",
(*extJSONValueWriter).WriteString,
[]interface{}{"hello, world!"},
},
{
"WriteSymbol",
(*extJSONValueWriter).WriteSymbol,
[]interface{}{"symbollolz"},
},
{
"WriteTimestamp",
(*extJSONValueWriter).WriteTimestamp,
[]interface{}{uint32(10), uint32(20)},
},
{
"WriteUndefined",
(*extJSONValueWriter).WriteUndefined,
[]interface{}{},
},
}
for _, tc := range testCases {
t.Run(tc.name, func(t *testing.T) {
fn := reflect.ValueOf(tc.fn)
if fn.Kind() != reflect.Func {
t.Fatalf("fn must be of kind Func but it is a %v", fn.Kind())
}
if fn.Type().NumIn() != len(tc.params)+1 || fn.Type().In(0) != reflect.TypeOf((*extJSONValueWriter)(nil)) {
t.Fatalf("fn must have at least one parameter and the first parameter must be a *valueWriter")
}
if fn.Type().NumOut() != 1 || fn.Type().Out(0) != reflect.TypeOf((*error)(nil)).Elem() {
t.Fatalf("fn must have one return value and it must be an error.")
}
params := make([]reflect.Value, 1, len(tc.params)+1)
ejvw := newExtJSONWriter(ioutil.Discard, true, true)
params[0] = reflect.ValueOf(ejvw)
for _, param := range tc.params {
params = append(params, reflect.ValueOf(param))
}
t.Run("incorrect transition", func(t *testing.T) {
results := fn.Call(params)
got := results[0].Interface().(error)
fnName := tc.name
if strings.Contains(fnName, "WriteBinary") {
fnName = "WriteBinaryWithSubtype"
}
want := TransitionError{current: mTopLevel, name: fnName, modes: []mode{mElement, mValue},
action: "write"}
if !compareErrors(got, want) {
t.Errorf("Errors do not match. got %v; want %v", got, want)
}
})
})
}
t.Run("WriteArray", func(t *testing.T) {
ejvw := newExtJSONWriter(ioutil.Discard, true, true)
ejvw.push(mArray)
want := TransitionError{current: mArray, destination: mArray, parent: mTopLevel,
name: "WriteArray", modes: []mode{mElement, mValue}, action: "write"}
_, got := ejvw.WriteArray()
if !compareErrors(got, want) {
t.Errorf("Did not get expected error. got %v; want %v", got, want)
}
})
t.Run("WriteCodeWithScope", func(t *testing.T) {
ejvw := newExtJSONWriter(ioutil.Discard, true, true)
ejvw.push(mArray)
want := TransitionError{current: mArray, destination: mCodeWithScope, parent: mTopLevel,
name: "WriteCodeWithScope", modes: []mode{mElement, mValue}, action: "write"}
_, got := ejvw.WriteCodeWithScope("")
if !compareErrors(got, want) {
t.Errorf("Did not get expected error. got %v; want %v", got, want)
}
})
t.Run("WriteDocument", func(t *testing.T) {
ejvw := newExtJSONWriter(ioutil.Discard, true, true)
ejvw.push(mArray)
want := TransitionError{current: mArray, destination: mDocument, parent: mTopLevel,
name: "WriteDocument", modes: []mode{mElement, mValue, mTopLevel}, action: "write"}
_, got := ejvw.WriteDocument()
if !compareErrors(got, want) {
t.Errorf("Did not get expected error. got %v; want %v", got, want)
}
})
t.Run("WriteDocumentElement", func(t *testing.T) {
ejvw := newExtJSONWriter(ioutil.Discard, true, true)
ejvw.push(mElement)
want := TransitionError{current: mElement,
destination: mElement,
parent: mTopLevel,
name: "WriteDocumentElement",
modes: []mode{mDocument, mTopLevel, mCodeWithScope},
action: "write"}
_, got := ejvw.WriteDocumentElement("")
if !compareErrors(got, want) {
t.Errorf("Did not get expected error. got %v; want %v", got, want)
}
})
t.Run("WriteDocumentEnd", func(t *testing.T) {
ejvw := newExtJSONWriter(ioutil.Discard, true, true)
ejvw.push(mElement)
want := fmt.Errorf("incorrect mode to end document: %s", mElement)
got := ejvw.WriteDocumentEnd()
if !compareErrors(got, want) {
t.Errorf("Did not get expected error. got %v; want %v", got, want)
}
})
t.Run("WriteArrayElement", func(t *testing.T) {
ejvw := newExtJSONWriter(ioutil.Discard, true, true)
ejvw.push(mElement)
want := TransitionError{current: mElement,
destination: mValue,
parent: mTopLevel,
name: "WriteArrayElement",
modes: []mode{mArray},
action: "write"}
_, got := ejvw.WriteArrayElement()
if !compareErrors(got, want) {
t.Errorf("Did not get expected error. got %v; want %v", got, want)
}
})
t.Run("WriteArrayEnd", func(t *testing.T) {
ejvw := newExtJSONWriter(ioutil.Discard, true, true)
ejvw.push(mElement)
want := fmt.Errorf("incorrect mode to end array: %s", mElement)
got := ejvw.WriteArrayEnd()
if !compareErrors(got, want) {
t.Errorf("Did not get expected error. got %v; want %v", got, want)
}
})
t.Run("WriteBytes", func(t *testing.T) {
t.Run("writeElementHeader error", func(t *testing.T) {
ejvw := newExtJSONWriterFromSlice(nil, true, true)
want := TransitionError{current: mTopLevel, destination: mode(0),
name: "WriteBinaryWithSubtype", modes: []mode{mElement, mValue}, action: "write"}
got := ejvw.WriteBinaryWithSubtype(nil, (byte)(bsontype.EmbeddedDocument))
if !compareErrors(got, want) {
t.Errorf("Did not received expected error. got %v; want %v", got, want)
}
})
})
t.Run("FormatDoubleWithExponent", func(t *testing.T) {
want := "3E-12"
got := formatDouble(float64(0.000000000003))
if got != want {
t.Errorf("Did not receive expected string. got %s: want %s", got, want)
}
})
}