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sfc-gh-pfussfc-gh-pfus
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SNOW-1926861 Use subtests for running max lob size tests (#1310)
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‎put_get_test.go

+93-94
Original file line numberDiff line numberDiff line change
@@ -779,114 +779,113 @@ func TestPutGetLargeFile(t *testing.T) {
779779
}
780780

781781
func TestPutGetMaxLOBSize(t *testing.T) {
782+
t.Skip("fails on CI because of backend testing in progress")
782783
// the LOB sizes to be tested
783784
testCases := [5]int{smallSize, originSize, mediumSize, largeSize, maxLOBSize}
784785

785786
runDBTest(t, func(dbt *DBTest) {
786-
if maxLOBSize > originSize { // for increased max LOB size
787-
_, err := dbt.exec("alter session set ALLOW_LARGE_LOBS_IN_EXTERNAL_SCAN = true")
788-
if err != nil {
789-
dbt.Errorf("Unable to set ALLOW_LARGE_LOBS_IN_EXTERNAL_SCAN parameter for increased max LOB size")
790-
}
791-
defer dbt.mustExec("alter session unset ALLOW_LARGE_LOBS_IN_EXTERNAL_SCAN")
792-
}
787+
dbt.mustExec("alter session set ALLOW_LARGE_LOBS_IN_EXTERNAL_SCAN = false")
788+
defer dbt.mustExec("alter session unset ALLOW_LARGE_LOBS_IN_EXTERNAL_SCAN")
793789
for _, tc := range testCases {
794-
// create the data file
795-
tmpDir := t.TempDir()
796-
fname := filepath.Join(tmpDir, "test_put_get.txt.gz")
797-
tableName := randomString(5)
798-
originalContents := fmt.Sprintf("%v,%s,%v\n", randomString(tc), randomString(tc), rand.Intn(100000))
799-
800-
var b bytes.Buffer
801-
gzw := gzip.NewWriter(&b)
802-
_, err := gzw.Write([]byte(originalContents))
803-
assertNilF(t, err)
804-
assertNilF(t, gzw.Close())
805-
err = os.WriteFile(fname, b.Bytes(), readWriteFileMode)
806-
assertNilF(t, err, "could not write to gzip file")
807-
808-
dbt.mustExec(fmt.Sprintf("create or replace table %s (c1 varchar, c2 varchar(%v), c3 int)", tableName, tc))
809-
defer dbt.mustExec("drop table " + tableName)
810-
fileStream, err := os.Open(fname)
811-
assertNilF(t, err)
812-
defer func() {
813-
assertNilF(t, fileStream.Close())
814-
}()
815-
816-
// test PUT command
817-
var sqlText string
818-
var rows *RowsExtended
819-
sql := "put 'file://%v' @%%%v auto_compress=true parallel=30"
820-
sqlText = fmt.Sprintf(
821-
sql, strings.ReplaceAll(fname, "\\", "\\\\"), tableName)
822-
rows = dbt.mustQuery(sqlText)
823-
defer func() {
824-
assertNilF(t, rows.Close())
825-
}()
826-
827-
var s0, s1, s2, s3, s4, s5, s6, s7 string
828-
assertTrueF(t, rows.Next(), "expected new rows")
829-
err = rows.Scan(&s0, &s1, &s2, &s3, &s4, &s5, &s6, &s7)
830-
assertNilF(t, err)
831-
assertEqualF(t, s6, uploaded.String(), fmt.Sprintf("expected %v, got: %v", uploaded, s6))
832-
assertNilF(t, err)
833-
834-
// check file is PUT
835-
dbt.mustQueryAssertCount("ls @%"+tableName, 1)
836-
837-
dbt.mustExec("copy into " + tableName)
838-
dbt.mustExec("rm @%" + tableName)
839-
dbt.mustQueryAssertCount("ls @%"+tableName, 0)
840-
841-
dbt.mustExec(fmt.Sprintf(`copy into @%%%v from %v file_format=(type=csv
790+
t.Run(strconv.Itoa(tc), func(t *testing.T) {
791+
792+
// create the data file
793+
tmpDir := t.TempDir()
794+
fname := filepath.Join(tmpDir, "test_put_get.txt.gz")
795+
tableName := randomString(5)
796+
originalContents := fmt.Sprintf("%v,%s,%v\n", randomString(tc), randomString(tc), rand.Intn(100000))
797+
798+
var b bytes.Buffer
799+
gzw := gzip.NewWriter(&b)
800+
_, err := gzw.Write([]byte(originalContents))
801+
assertNilF(t, err)
802+
assertNilF(t, gzw.Close())
803+
err = os.WriteFile(fname, b.Bytes(), readWriteFileMode)
804+
assertNilF(t, err, "could not write to gzip file")
805+
806+
dbt.mustExec(fmt.Sprintf("create or replace table %s (c1 varchar, c2 varchar(%v), c3 int)", tableName, tc))
807+
defer dbt.mustExec("drop table " + tableName)
808+
fileStream, err := os.Open(fname)
809+
assertNilF(t, err)
810+
defer func() {
811+
assertNilF(t, fileStream.Close())
812+
}()
813+
814+
// test PUT command
815+
var sqlText string
816+
var rows *RowsExtended
817+
sql := "put 'file://%v' @%%%v auto_compress=true parallel=30"
818+
sqlText = fmt.Sprintf(
819+
sql, strings.ReplaceAll(fname, "\\", "\\\\"), tableName)
820+
rows = dbt.mustQuery(sqlText)
821+
defer func() {
822+
assertNilF(t, rows.Close())
823+
}()
824+
825+
var s0, s1, s2, s3, s4, s5, s6, s7 string
826+
assertTrueF(t, rows.Next(), "expected new rows")
827+
err = rows.Scan(&s0, &s1, &s2, &s3, &s4, &s5, &s6, &s7)
828+
assertNilF(t, err)
829+
assertEqualF(t, s6, uploaded.String(), fmt.Sprintf("expected %v, got: %v", uploaded, s6))
830+
assertNilF(t, err)
831+
832+
// check file is PUT
833+
dbt.mustQueryAssertCount("ls @%"+tableName, 1)
834+
835+
dbt.mustExec("copy into " + tableName)
836+
dbt.mustExec("rm @%" + tableName)
837+
dbt.mustQueryAssertCount("ls @%"+tableName, 0)
838+
839+
dbt.mustExec(fmt.Sprintf(`copy into @%%%v from %v file_format=(type=csv
842840
compression='gzip')`, tableName, tableName))
843841

844-
// test GET command
845-
sql = fmt.Sprintf("get @%%%v 'file://%v'", tableName, tmpDir)
846-
sqlText = strings.ReplaceAll(sql, "\\", "\\\\")
847-
rows2 := dbt.mustQuery(sqlText)
848-
defer func() {
849-
assertNilF(t, rows2.Close())
850-
}()
851-
for rows2.Next() {
852-
err = rows2.Scan(&s0, &s1, &s2, &s3)
853-
assertNilE(t, err)
854-
assertTrueF(t, strings.HasPrefix(s0, "data_"), "a file was not downloaded by GET")
855-
assertEqualE(t, s2, "DOWNLOADED", "did not return DOWNLOADED status")
856-
assertEqualE(t, s3, "", fmt.Sprintf("returned %v", s3))
857-
}
842+
// test GET command
843+
sql = fmt.Sprintf("get @%%%v 'file://%v'", tableName, tmpDir)
844+
sqlText = strings.ReplaceAll(sql, "\\", "\\\\")
845+
rows2 := dbt.mustQuery(sqlText)
846+
defer func() {
847+
assertNilF(t, rows2.Close())
848+
}()
849+
for rows2.Next() {
850+
err = rows2.Scan(&s0, &s1, &s2, &s3)
851+
assertNilE(t, err)
852+
assertTrueF(t, strings.HasPrefix(s0, "data_"), "a file was not downloaded by GET")
853+
assertEqualE(t, s2, "DOWNLOADED", "did not return DOWNLOADED status")
854+
assertEqualE(t, s3, "", fmt.Sprintf("returned %v", s3))
855+
}
858856

859-
// verify the content in the file
860-
files, err := filepath.Glob(filepath.Join(tmpDir, "data_*"))
861-
assertNilF(t, err)
857+
// verify the content in the file
858+
files, err := filepath.Glob(filepath.Join(tmpDir, "data_*"))
859+
assertNilF(t, err)
862860

863-
fileName := files[0]
864-
f, err := os.Open(fileName)
865-
assertNilE(t, err)
861+
fileName := files[0]
862+
f, err := os.Open(fileName)
863+
assertNilE(t, err)
866864

867-
defer func() {
868-
assertNilF(t, f.Close())
869-
}()
870-
gz, err := gzip.NewReader(f)
871-
assertNilE(t, err)
865+
defer func() {
866+
assertNilF(t, f.Close())
867+
}()
868+
gz, err := gzip.NewReader(f)
869+
assertNilE(t, err)
872870

873-
defer func() {
874-
assertNilF(t, gz.Close())
875-
}()
876-
var contents string
877-
for {
878-
c := make([]byte, defaultChunkBufferSize)
879-
if n, err := gz.Read(c); err != nil {
880-
if err == io.EOF {
871+
defer func() {
872+
assertNilF(t, gz.Close())
873+
}()
874+
var contents string
875+
for {
876+
c := make([]byte, defaultChunkBufferSize)
877+
if n, err := gz.Read(c); err != nil {
878+
if err == io.EOF {
879+
contents = contents + string(c[:n])
880+
break
881+
}
882+
t.Error(err)
883+
} else {
881884
contents = contents + string(c[:n])
882-
break
883885
}
884-
t.Error(err)
885-
} else {
886-
contents = contents + string(c[:n])
887886
}
888-
}
889-
assertEqualE(t, contents, originalContents, "output is different from the original file")
887+
assertEqualE(t, contents, originalContents, "output is different from the original file")
888+
})
890889
}
891890
})
892891
}

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