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// Copyright (C) MongoDB, Inc. 2014-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 mongoimport
import (
"bytes"
"io"
"os"
"testing"
"github.com/mongodb/mongo-tools/common/testtype"
. "github.com/smartystreets/goconvey/convey"
"gopkg.in/mgo.v2/bson"
)
func TestJSONArrayStreamDocument(t *testing.T) {
testtype.VerifyTestType(t, testtype.UnitTestType)
Convey("With a JSON array input reader", t, func() {
var jsonFile, fileHandle *os.File
Convey("an error should be thrown if a plain JSON document is supplied", func() {
contents := `{"a": "ae"}`
r := NewJSONInputReader(true, bytes.NewReader([]byte(contents)), 1)
So(r.StreamDocument(true, make(chan bson.D, 1)), ShouldNotBeNil)
})
Convey("reading a JSON object that has no opening bracket should "+
"error out", func() {
contents := `{"a":3},{"b":4}]`
r := NewJSONInputReader(true, bytes.NewReader([]byte(contents)), 1)
So(r.StreamDocument(true, make(chan bson.D, 1)), ShouldNotBeNil)
})
Convey("JSON arrays that do not end with a closing bracket should "+
"error out", func() {
contents := `[{"a": "ae"}`
r := NewJSONInputReader(true, bytes.NewReader([]byte(contents)), 1)
docChan := make(chan bson.D, 1)
So(r.StreamDocument(true, docChan), ShouldNotBeNil)
// though first read should be fine
So(<-docChan, ShouldResemble, bson.D{{"a", "ae"}})
})
Convey("an error should be thrown if a plain JSON file is supplied", func() {
fileHandle, err := os.Open("testdata/test_plain.json")
So(err, ShouldBeNil)
r := NewJSONInputReader(true, fileHandle, 1)
So(r.StreamDocument(true, make(chan bson.D, 50)), ShouldNotBeNil)
})
Convey("array JSON input file sources should be parsed correctly and "+
"subsequent imports should parse correctly", func() {
// TODO: currently parses JSON as floats and not ints
expectedReadOne := bson.D{
{"a", 1.2},
{"b", "a"},
{"c", 0.4},
}
expectedReadTwo := bson.D{
{"a", 2.4},
{"b", "string"},
{"c", 52.9},
}
fileHandle, err := os.Open("testdata/test_array.json")
So(err, ShouldBeNil)
r := NewJSONInputReader(true, fileHandle, 1)
docChan := make(chan bson.D, 50)
So(r.StreamDocument(true, docChan), ShouldBeNil)
So(<-docChan, ShouldResemble, expectedReadOne)
So(<-docChan, ShouldResemble, expectedReadTwo)
})
Reset(func() {
jsonFile.Close()
fileHandle.Close()
})
})
}
func TestJSONPlainStreamDocument(t *testing.T) {
testtype.VerifyTestType(t, testtype.UnitTestType)
Convey("With a plain JSON input reader", t, func() {
var jsonFile, fileHandle *os.File
Convey("string valued JSON documents should be imported properly", func() {
contents := `{"a": "ae"}`
expectedRead := bson.D{{"a", "ae"}}
r := NewJSONInputReader(false, bytes.NewReader([]byte(contents)), 1)
docChan := make(chan bson.D, 1)
So(r.StreamDocument(true, docChan), ShouldBeNil)
So(<-docChan, ShouldResemble, expectedRead)
})
Convey("several string valued JSON documents should be imported "+
"properly", func() {
contents := `{"a": "ae"}{"b": "dc"}`
expectedReadOne := bson.D{{"a", "ae"}}
expectedReadTwo := bson.D{{"b", "dc"}}
r := NewJSONInputReader(false, bytes.NewReader([]byte(contents)), 1)
docChan := make(chan bson.D, 2)
So(r.StreamDocument(true, docChan), ShouldBeNil)
So(<-docChan, ShouldResemble, expectedReadOne)
So(<-docChan, ShouldResemble, expectedReadTwo)
})
Convey("number valued JSON documents should be imported properly", func() {
contents := `{"a": "ae", "b": 2.0}`
expectedRead := bson.D{{"a", "ae"}, {"b", 2.0}}
r := NewJSONInputReader(false, bytes.NewReader([]byte(contents)), 1)
docChan := make(chan bson.D, 1)
So(r.StreamDocument(true, docChan), ShouldBeNil)
So(<-docChan, ShouldResemble, expectedRead)
})
Convey("JSON arrays should return an error", func() {
contents := `[{"a": "ae", "b": 2.0}]`
r := NewJSONInputReader(false, bytes.NewReader([]byte(contents)), 1)
So(r.StreamDocument(true, make(chan bson.D, 50)), ShouldNotBeNil)
})
Convey("plain JSON input file sources should be parsed correctly and "+
"subsequent imports should parse correctly", func() {
expectedReads := []bson.D{
{
{"a", 4},
{"b", "string value"},
{"c", 1},
}, {
{"a", 5},
{"b", "string value"},
{"c", 2},
}, {
{"a", 6},
{"b", "string value"},
{"c", 3},
},
}
fileHandle, err := os.Open("testdata/test_plain.json")
So(err, ShouldBeNil)
r := NewJSONInputReader(false, fileHandle, 1)
docChan := make(chan bson.D, len(expectedReads))
So(r.StreamDocument(true, docChan), ShouldBeNil)
for i := 0; i < len(expectedReads); i++ {
for j, readDocument := range <-docChan {
So(readDocument.Name, ShouldEqual, expectedReads[i][j].Name)
So(readDocument.Value, ShouldEqual, expectedReads[i][j].Value)
}
}
})
Convey("reading JSON that starts with a UTF-8 BOM should not error",
func() {
expectedReads := []bson.D{
{
{"a", 1},
{"b", 2},
{"c", 3},
}, {
{"a", 4},
{"b", 5},
{"c", 6},
},
}
fileHandle, err := os.Open("testdata/test_bom.json")
So(err, ShouldBeNil)
r := NewJSONInputReader(false, fileHandle, 1)
docChan := make(chan bson.D, 2)
So(r.StreamDocument(true, docChan), ShouldBeNil)
for _, expectedRead := range expectedReads {
for i, readDocument := range <-docChan {
So(readDocument.Name, ShouldEqual, expectedRead[i].Name)
So(readDocument.Value, ShouldEqual, expectedRead[i].Value)
}
}
})
Reset(func() {
jsonFile.Close()
fileHandle.Close()
})
})
}
func TestReadJSONArraySeparator(t *testing.T) {
testtype.VerifyTestType(t, testtype.UnitTestType)
Convey("With an array JSON input reader", t, func() {
Convey("reading a JSON array separator should consume [",
func() {
contents := `[{"a": "ae"}`
jsonImporter := NewJSONInputReader(true, bytes.NewReader([]byte(contents)), 1)
So(jsonImporter.readJSONArraySeparator(), ShouldBeNil)
// at this point it should have consumed all bytes up to `{`
So(jsonImporter.readJSONArraySeparator(), ShouldNotBeNil)
})
Convey("reading a closing JSON array separator without a "+
"corresponding opening bracket should error out ",
func() {
contents := `]`
jsonImporter := NewJSONInputReader(true, bytes.NewReader([]byte(contents)), 1)
So(jsonImporter.readJSONArraySeparator(), ShouldNotBeNil)
})
Convey("reading an opening JSON array separator without a "+
"corresponding closing bracket should error out ",
func() {
contents := `[`
jsonImporter := NewJSONInputReader(true, bytes.NewReader([]byte(contents)), 1)
So(jsonImporter.readJSONArraySeparator(), ShouldBeNil)
So(jsonImporter.readJSONArraySeparator(), ShouldNotBeNil)
})
Convey("reading an opening JSON array separator with an ending "+
"closing bracket should return EOF",
func() {
contents := `[]`
jsonImporter := NewJSONInputReader(true, bytes.NewReader([]byte(contents)), 1)
So(jsonImporter.readJSONArraySeparator(), ShouldBeNil)
So(jsonImporter.readJSONArraySeparator(), ShouldEqual, io.EOF)
})
Convey("reading an opening JSON array separator, an ending closing "+
"bracket but then additional characters after that, should error",
func() {
contents := `[]a`
jsonImporter := NewJSONInputReader(true, bytes.NewReader([]byte(contents)), 1)
So(jsonImporter.readJSONArraySeparator(), ShouldBeNil)
So(jsonImporter.readJSONArraySeparator(), ShouldNotBeNil)
})
Convey("reading invalid JSON objects between valid objects should "+
"error out",
func() {
contents := `[{"a":3}x{"b":4}]`
r := NewJSONInputReader(true, bytes.NewReader([]byte(contents)), 1)
docChan := make(chan bson.D, 1)
So(r.StreamDocument(true, docChan), ShouldNotBeNil)
// read first valid document
<-docChan
So(r.readJSONArraySeparator(), ShouldNotBeNil)
})
Convey("reading invalid JSON objects after valid objects but between "+
"valid objects should error out",
func() {
contents := `[{"a":3},b{"b":4}]`
r := NewJSONInputReader(true, bytes.NewReader([]byte(contents)), 1)
So(r.StreamDocument(true, make(chan bson.D, 1)), ShouldNotBeNil)
contents = `[{"a":3},,{"b":4}]`
r = NewJSONInputReader(true, bytes.NewReader([]byte(contents)), 1)
So(r.StreamDocument(true, make(chan bson.D, 1)), ShouldNotBeNil)
})
})
}
func TestJSONConvert(t *testing.T) {
testtype.VerifyTestType(t, testtype.UnitTestType)
Convey("With a JSON input reader", t, func() {
Convey("calling convert on a JSONConverter should return the expected BSON document", func() {
jsonConverter := JSONConverter{
data: []byte(`{field1:"a",field2:"b",field3:"c"}`),
index: uint64(0),
}
expectedDocument := bson.D{
{"field1", "a"},
{"field2", "b"},
{"field3", "c"},
}
document, err := jsonConverter.Convert()
So(err, ShouldBeNil)
So(document, ShouldResemble, expectedDocument)
})
})
}
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