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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"
"strings"
"testing"
"github.com/mongodb/mongo-tools/common/log"
"github.com/mongodb/mongo-tools/common/options"
"github.com/mongodb/mongo-tools/common/testtype"
. "github.com/smartystreets/goconvey/convey"
"gopkg.in/mgo.v2/bson"
)
func init() {
log.SetVerbosity(&options.Verbosity{
VLevel: 4,
})
}
func TestCSVStreamDocument(t *testing.T) {
testtype.VerifyTestType(t, testtype.UnitTestType)
Convey("With a CSV input reader", t, func() {
Convey("badly encoded CSV should result in a parsing error", func() {
contents := `1, 2, foo"bar`
colSpecs := []ColumnSpec{
{"a", new(FieldAutoParser), pgAutoCast, "auto"},
{"b", new(FieldAutoParser), pgAutoCast, "auto"},
{"c", new(FieldAutoParser), pgAutoCast, "auto"},
}
r := NewCSVInputReader(colSpecs, bytes.NewReader([]byte(contents)), os.Stdout, 1, false)
docChan := make(chan bson.D, 1)
So(r.StreamDocument(true, docChan), ShouldNotBeNil)
})
Convey("escaped quotes are parsed correctly", func() {
contents := `1, 2, "foo""bar"`
colSpecs := []ColumnSpec{
{"a", new(FieldAutoParser), pgAutoCast, "auto"},
{"b", new(FieldAutoParser), pgAutoCast, "auto"},
{"c", new(FieldAutoParser), pgAutoCast, "auto"},
}
r := NewCSVInputReader(colSpecs, bytes.NewReader([]byte(contents)), os.Stdout, 1, false)
docChan := make(chan bson.D, 1)
So(r.StreamDocument(true, docChan), ShouldBeNil)
})
Convey("multiple escaped quotes separated by whitespace parsed correctly", func() {
contents := `1, 2, "foo"" ""bar"`
colSpecs := []ColumnSpec{
{"a", new(FieldAutoParser), pgAutoCast, "auto"},
{"b", new(FieldAutoParser), pgAutoCast, "auto"},
{"c", new(FieldAutoParser), pgAutoCast, "auto"},
}
expectedRead := bson.D{
{"a", int32(1)},
{"b", int32(2)},
{"c", `foo" "bar`},
}
r := NewCSVInputReader(colSpecs, bytes.NewReader([]byte(contents)), os.Stdout, 1, false)
docChan := make(chan bson.D, 1)
So(r.StreamDocument(true, docChan), ShouldBeNil)
So(<-docChan, ShouldResemble, expectedRead)
})
Convey("integer valued strings should be converted", func() {
contents := `1, 2, " 3e"`
colSpecs := []ColumnSpec{
{"a", new(FieldAutoParser), pgAutoCast, "auto"},
{"b", new(FieldAutoParser), pgAutoCast, "auto"},
{"c", new(FieldAutoParser), pgAutoCast, "auto"},
}
expectedRead := bson.D{
{"a", int32(1)},
{"b", int32(2)},
{"c", " 3e"},
}
r := NewCSVInputReader(colSpecs, bytes.NewReader([]byte(contents)), os.Stdout, 1, false)
docChan := make(chan bson.D, 1)
So(r.StreamDocument(true, docChan), ShouldBeNil)
So(<-docChan, ShouldResemble, expectedRead)
})
Convey("extra fields should be prefixed with 'field'", func() {
contents := `1, 2f , " 3e" , " may"`
colSpecs := []ColumnSpec{
{"a", new(FieldAutoParser), pgAutoCast, "auto"},
{"b", new(FieldAutoParser), pgAutoCast, "auto"},
{"c", new(FieldAutoParser), pgAutoCast, "auto"},
}
expectedRead := bson.D{
{"a", int32(1)},
{"b", "2f"},
{"c", " 3e"},
{"field3", " may"},
}
r := NewCSVInputReader(colSpecs, bytes.NewReader([]byte(contents)), os.Stdout, 1, false)
docChan := make(chan bson.D, 1)
So(r.StreamDocument(true, docChan), ShouldBeNil)
So(<-docChan, ShouldResemble, expectedRead)
})
Convey("nested CSV fields should be imported properly", func() {
contents := `1, 2f , " 3e" , " may"`
colSpecs := []ColumnSpec{
{"a", new(FieldAutoParser), pgAutoCast, "auto"},
{"b.c", new(FieldAutoParser), pgAutoCast, "auto"},
{"c", new(FieldAutoParser), pgAutoCast, "auto"},
}
b := bson.D{{"c", "2f"}}
expectedRead := bson.D{
{"a", int32(1)},
{"b", b},
{"c", " 3e"},
{"field3", " may"},
}
r := NewCSVInputReader(colSpecs, bytes.NewReader([]byte(contents)), os.Stdout, 1, false)
docChan := make(chan bson.D, 4)
So(r.StreamDocument(true, docChan), ShouldBeNil)
readDocument := <-docChan
So(readDocument[0], ShouldResemble, expectedRead[0])
So(readDocument[1].Name, ShouldResemble, expectedRead[1].Name)
So(*readDocument[1].Value.(*bson.D), ShouldResemble, expectedRead[1].Value)
So(readDocument[2], ShouldResemble, expectedRead[2])
So(readDocument[3], ShouldResemble, expectedRead[3])
})
Convey("whitespace separated quoted strings are still an error", func() {
contents := `1, 2, "foo" "bar"`
colSpecs := []ColumnSpec{
{"a", new(FieldAutoParser), pgAutoCast, "auto"},
{"b", new(FieldAutoParser), pgAutoCast, "auto"},
{"c", new(FieldAutoParser), pgAutoCast, "auto"},
}
r := NewCSVInputReader(colSpecs, bytes.NewReader([]byte(contents)), os.Stdout, 1, false)
docChan := make(chan bson.D, 1)
So(r.StreamDocument(true, docChan), ShouldNotBeNil)
})
Convey("nested CSV fields causing header collisions should error", func() {
contents := `1, 2f , " 3e" , " may", june`
colSpecs := []ColumnSpec{
{"a", new(FieldAutoParser), pgAutoCast, "auto"},
{"b.c", new(FieldAutoParser), pgAutoCast, "auto"},
{"field3", new(FieldAutoParser), pgAutoCast, "auto"},
}
r := NewCSVInputReader(colSpecs, bytes.NewReader([]byte(contents)), os.Stdout, 1, false)
docChan := make(chan bson.D, 1)
So(r.StreamDocument(true, docChan), ShouldNotBeNil)
})
Convey("calling StreamDocument() for CSVs should return next set of "+
"values", func() {
contents := "1, 2, 3\n4, 5, 6"
colSpecs := []ColumnSpec{
{"a", new(FieldAutoParser), pgAutoCast, "auto"},
{"b", new(FieldAutoParser), pgAutoCast, "auto"},
{"c", new(FieldAutoParser), pgAutoCast, "auto"},
}
expectedReadOne := bson.D{
{"a", int32(1)},
{"b", int32(2)},
{"c", int32(3)},
}
expectedReadTwo := bson.D{
{"a", int32(4)},
{"b", int32(5)},
{"c", int32(6)},
}
r := NewCSVInputReader(colSpecs, bytes.NewReader([]byte(contents)), os.Stdout, 1, false)
docChan := make(chan bson.D, 2)
So(r.StreamDocument(true, docChan), ShouldBeNil)
So(<-docChan, ShouldResemble, expectedReadOne)
So(<-docChan, ShouldResemble, expectedReadTwo)
})
Convey("valid CSV input file that starts with the UTF-8 BOM should "+
"not raise an error", func() {
colSpecs := []ColumnSpec{
{"a", new(FieldAutoParser), pgAutoCast, "auto"},
{"b", new(FieldAutoParser), pgAutoCast, "auto"},
{"c", new(FieldAutoParser), pgAutoCast, "auto"},
}
expectedReads := []bson.D{
{
{"a", int32(1)},
{"b", int32(2)},
{"c", int32(3)},
}, {
{"a", int32(4)},
{"b", int32(5)},
{"c", int32(6)},
},
}
fileHandle, err := os.Open("testdata/test_bom.csv")
So(err, ShouldBeNil)
r := NewCSVInputReader(colSpecs, fileHandle, os.Stdout, 1, false)
docChan := make(chan bson.D, len(expectedReads))
So(r.StreamDocument(true, docChan), ShouldBeNil)
for _, expectedRead := range expectedReads {
for i, readDocument := range <-docChan {
So(readDocument.Name, ShouldResemble, expectedRead[i].Name)
So(readDocument.Value, ShouldResemble, expectedRead[i].Value)
}
}
})
})
}
func TestCSVReadAndValidateHeader(t *testing.T) {
testtype.VerifyTestType(t, testtype.UnitTestType)
var err error
Convey("With a CSV input reader", t, func() {
Convey("setting the header should read the first line of the CSV", func() {
contents := "extraHeader1, extraHeader2, extraHeader3"
colSpecs := []ColumnSpec{}
r := NewCSVInputReader(colSpecs, bytes.NewReader([]byte(contents)), os.Stdout, 1, false)
So(r.ReadAndValidateHeader(), ShouldBeNil)
So(len(r.colSpecs), ShouldEqual, 3)
})
Convey("setting non-colliding nested CSV headers should not raise an error", func() {
contents := "a, b, c"
colSpecs := []ColumnSpec{}
r := NewCSVInputReader(colSpecs, bytes.NewReader([]byte(contents)), os.Stdout, 1, false)
So(r.ReadAndValidateHeader(), ShouldBeNil)
So(len(r.colSpecs), ShouldEqual, 3)
contents = "a.b.c, a.b.d, c"
colSpecs = []ColumnSpec{}
r = NewCSVInputReader(colSpecs, bytes.NewReader([]byte(contents)), os.Stdout, 1, false)
So(r.ReadAndValidateHeader(), ShouldBeNil)
So(len(r.colSpecs), ShouldEqual, 3)
contents = "a.b, ab, a.c"
colSpecs = []ColumnSpec{}
r = NewCSVInputReader(colSpecs, bytes.NewReader([]byte(contents)), os.Stdout, 1, false)
So(r.ReadAndValidateHeader(), ShouldBeNil)
So(len(r.colSpecs), ShouldEqual, 3)
contents = "a, ab, ac, dd"
colSpecs = []ColumnSpec{}
r = NewCSVInputReader(colSpecs, bytes.NewReader([]byte(contents)), os.Stdout, 1, false)
So(r.ReadAndValidateHeader(), ShouldBeNil)
So(len(r.colSpecs), ShouldEqual, 4)
})
Convey("setting colliding nested CSV headers should raise an error", func() {
contents := "a, a.b, c"
colSpecs := []ColumnSpec{}
r := NewCSVInputReader(colSpecs, bytes.NewReader([]byte(contents)), os.Stdout, 1, false)
So(r.ReadAndValidateHeader(), ShouldNotBeNil)
contents = "a.b.c, a.b.d.c, a.b.d"
colSpecs = []ColumnSpec{}
r = NewCSVInputReader(colSpecs, bytes.NewReader([]byte(contents)), os.Stdout, 1, false)
So(r.ReadAndValidateHeader(), ShouldNotBeNil)
contents = "a, a, a"
colSpecs = []ColumnSpec{}
r = NewCSVInputReader(colSpecs, bytes.NewReader([]byte(contents)), os.Stdout, 1, false)
So(r.ReadAndValidateHeader(), ShouldNotBeNil)
})
Convey("setting the header that ends in a dot should error", func() {
contents := "c, a., b"
colSpecs := []ColumnSpec{}
So(err, ShouldBeNil)
So(NewCSVInputReader(colSpecs, bytes.NewReader([]byte(contents)), os.Stdout, 1, false).ReadAndValidateHeader(), ShouldNotBeNil)
})
Convey("setting the header that starts in a dot should error", func() {
contents := "c, .a, b"
colSpecs := []ColumnSpec{}
So(NewCSVInputReader(colSpecs, bytes.NewReader([]byte(contents)), os.Stdout, 1, false).ReadAndValidateHeader(), ShouldNotBeNil)
})
Convey("setting the header that contains multiple consecutive dots should error", func() {
contents := "c, a..a, b"
colSpecs := []ColumnSpec{}
So(NewCSVInputReader(colSpecs, bytes.NewReader([]byte(contents)), os.Stdout, 1, false).ReadAndValidateHeader(), ShouldNotBeNil)
contents = "c, a.a, b.b...b"
colSpecs = []ColumnSpec{}
So(NewCSVInputReader(colSpecs, bytes.NewReader([]byte(contents)), os.Stdout, 1, false).ReadAndValidateHeader(), ShouldNotBeNil)
})
Convey("setting the header using an empty file should return EOF", func() {
contents := ""
colSpecs := []ColumnSpec{}
r := NewCSVInputReader(colSpecs, bytes.NewReader([]byte(contents)), os.Stdout, 1, false)
So(r.ReadAndValidateHeader(), ShouldEqual, io.EOF)
So(len(r.colSpecs), ShouldEqual, 0)
})
Convey("setting the header with column specs already set should replace "+
"the existing column specs", func() {
contents := "extraHeader1,extraHeader2,extraHeader3"
colSpecs := []ColumnSpec{
{"a", new(FieldAutoParser), pgAutoCast, "auto"},
{"b", new(FieldAutoParser), pgAutoCast, "auto"},
{"c", new(FieldAutoParser), pgAutoCast, "auto"},
}
r := NewCSVInputReader(colSpecs, bytes.NewReader([]byte(contents)), os.Stdout, 1, false)
So(r.ReadAndValidateHeader(), ShouldBeNil)
// if ReadAndValidateHeader() is called with column specs already passed
// in, the header should be replaced with the read header line
So(len(r.colSpecs), ShouldEqual, 3)
So(ColumnNames(r.colSpecs), ShouldResemble, strings.Split(contents, ","))
})
Convey("plain CSV input file sources should be parsed correctly and "+
"subsequent imports should parse correctly", func() {
colSpecs := []ColumnSpec{
{"a", new(FieldAutoParser), pgAutoCast, "auto"},
{"b", new(FieldAutoParser), pgAutoCast, "auto"},
{"c", new(FieldAutoParser), pgAutoCast, "auto"},
}
expectedReadOne := bson.D{
{"a", int32(1)},
{"b", int32(2)},
{"c", int32(3)},
}
expectedReadTwo := bson.D{
{"a", int32(3)},
{"b", 5.4},
{"c", "string"},
}
fileHandle, err := os.Open("testdata/test.csv")
So(err, ShouldBeNil)
r := NewCSVInputReader(colSpecs, fileHandle, os.Stdout, 1, false)
docChan := make(chan bson.D, 50)
So(r.StreamDocument(true, docChan), ShouldBeNil)
So(<-docChan, ShouldResemble, expectedReadOne)
So(<-docChan, ShouldResemble, expectedReadTwo)
})
})
}
func TestCSVConvert(t *testing.T) {
testtype.VerifyTestType(t, testtype.UnitTestType)
Convey("With a CSV input reader", t, func() {
Convey("calling convert on a CSVConverter should return the expected BSON document", func() {
csvConverter := CSVConverter{
colSpecs: []ColumnSpec{
{"field1", new(FieldAutoParser), pgAutoCast, "auto"},
{"field2", new(FieldAutoParser), pgAutoCast, "auto"},
{"field3", new(FieldAutoParser), pgAutoCast, "auto"},
},
data: []string{"a", "b", "c"},
index: uint64(0),
}
expectedDocument := bson.D{
{"field1", "a"},
{"field2", "b"},
{"field3", "c"},
}
document, err := csvConverter.Convert()
So(err, ShouldBeNil)
So(document, ShouldResemble, expectedDocument)
})
})
}
|
