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rbuffer_test.go
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rbuffer_test.go
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// Copyright 2017 The go-hep Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package rootio
import (
"io/ioutil"
"reflect"
"strings"
"testing"
)
func TestRBuffer(t *testing.T) {
data := make([]byte, 32)
r := NewRBuffer(data, nil, 0, nil)
if got, want := r.Len(), int64(32); got != want {
t.Fatalf("got len=%v. want=%v", got, want)
}
start := r.Pos()
if start != 0 {
t.Fatalf("got start=%v. want=%v", start, 0)
}
_ = r.ReadI16()
if r.Err() != nil {
t.Fatalf("error reading int16: %v", r.Err())
}
pos := r.Pos()
if pos != 2 {
t.Fatalf("got pos=%v. want=%v", pos, 16)
}
pos = 0
data = make([]byte, 2*(2+4+8))
r = NewRBuffer(data, nil, 0, nil)
for _, n := range []int{2, 4, 8} {
beg := r.Pos()
if beg != pos {
t.Errorf("pos[%d] error: got=%d, want=%d\n", n, beg, pos)
}
switch n {
case 2:
_ = r.ReadI16()
_ = r.ReadU16()
case 4:
_ = r.ReadI32()
_ = r.ReadU32()
case 8:
_ = r.ReadI64()
_ = r.ReadU64()
}
end := r.Pos()
pos += int64(2 * n)
if got, want := end-beg, int64(2*n); got != want {
t.Errorf("%d-bytes: got=%d. want=%d\n", n, got, want)
}
}
}
func TestReadRBuffer(t *testing.T) {
for _, test := range []struct {
name string
file string
want ROOTUnmarshaler
}{
{
name: "TNamed",
want: &tnamed{rvers: 1, obj: tobject{id: 0x0, bits: 0x3000000}, name: "my-name", title: "my-title"},
},
{
name: "TNamed",
file: "testdata/tnamed-cmssw.dat",
want: &tnamed{
rvers: 1,
obj: tobject{id: 0x0, bits: 0x3000000},
name: "edmTriggerResults_TriggerResults__HLT.present", title: "edmTriggerResults_TriggerResults__HLT.present",
},
},
{
name: "TNamed",
file: "testdata/tnamed-cmssw-2.dat",
want: &tnamed{
rvers: 1,
obj: tobject{id: 0x0, bits: 0x3500000},
name: "edmTriggerResults_TriggerResults__HLT.present", title: "edmTriggerResults_TriggerResults__HLT.present",
},
},
{
name: "TNamed",
file: "testdata/tnamed-long-string.dat",
want: &tnamed{
rvers: 1,
obj: tobject{id: 0x0, bits: 0x3000000},
name: strings.Repeat("*", 256),
title: "my-title",
},
},
{
name: "TList",
want: &tlist{
rvers: 5,
name: "list-name",
objs: []Object{
&tnamed{rvers: 1, obj: tobject{id: 0x0, bits: 0x3000000}, name: "n0", title: "t0"},
&tnamed{rvers: 1, obj: tobject{id: 0x0, bits: 0x3000000}, name: "n1", title: "t1"},
},
},
},
{
name: "TObjArray",
want: &tobjarray{
rvers: 3,
obj: tobject{id: 0x0, bits: 0x3000000},
name: "my-objs",
arr: []Object{
&tnamed{rvers: 1, obj: tobject{id: 0x0, bits: 0x3000000}, name: "n0", title: "t0"},
&tnamed{rvers: 1, obj: tobject{id: 0x0, bits: 0x3000000}, name: "n1", title: "t1"},
&tnamed{rvers: 1, obj: tobject{id: 0x0, bits: 0x3000000}, name: "n2", title: "t2"},
},
last: 2,
},
},
{
name: "TList",
file: "testdata/tlist-tsi.dat",
want: &tlist{
rvers: 5,
name: "",
objs: []Object{
&tstreamerInfo{
rvers: 9,
named: tnamed{
rvers: 1,
obj: tobject{id: 0x0, bits: 0x3000000},
name: "TTree",
title: "",
},
chksum: 0xa2a28f2,
clsver: 19,
elems: []StreamerElement{
&tstreamerBase{
tstreamerElement: tstreamerElement{
rvers: 4,
named: tnamed{
rvers: 1,
obj: tobject{id: 0x0, bits: 0x3000000},
name: "TNamed",
title: "The basis for a named object (name, title)",
},
etype: 67,
esize: 0,
arrlen: 0,
arrdim: 0,
maxidx: [5]int32{0, 0, 0, 0, 0},
offset: 0,
ename: "BASE",
xmin: 0,
xmax: 0,
factor: 0,
},
rvers: 3,
vbase: 1,
},
&tstreamerBase{
tstreamerElement: tstreamerElement{
rvers: 4,
named: tnamed{
rvers: 1,
obj: tobject{id: 0x0, bits: 0x3000000},
name: "TAttLine",
title: "Line attributes",
},
etype: 0,
esize: 0,
arrlen: 0,
arrdim: 0,
maxidx: [5]int32{0, 0, 0, 0, 0},
offset: 0,
ename: "BASE",
xmin: 0,
xmax: 0,
factor: 0,
},
rvers: 3,
vbase: 1,
},
&tstreamerBase{
tstreamerElement: tstreamerElement{
rvers: 4,
named: tnamed{
rvers: 1,
obj: tobject{id: 0x0, bits: 0x3000000},
name: "TAttFill",
title: "Fill area attributes",
},
etype: 0,
esize: 0,
arrlen: 0,
arrdim: 0,
maxidx: [5]int32{0, 0, 0, 0, 0},
offset: 0,
ename: "BASE",
xmin: 0,
xmax: 0,
factor: 0,
},
rvers: 3,
vbase: 1,
},
&tstreamerBase{
tstreamerElement: tstreamerElement{
rvers: 4,
named: tnamed{
rvers: 1,
obj: tobject{id: 0x0, bits: 0x3000000},
name: "TAttMarker",
title: "Marker attributes",
},
etype: 0,
esize: 0,
arrlen: 0,
arrdim: 0,
maxidx: [5]int32{0, 0, 0, 0, 0},
offset: 0,
ename: "BASE",
xmin: 0,
xmax: 0,
factor: 0,
},
rvers: 3,
vbase: 2,
},
&tstreamerBasicType{
tstreamerElement: tstreamerElement{
rvers: 4,
named: tnamed{
rvers: 1,
obj: tobject{id: 0x0, bits: 0x3000000},
name: "fEntries",
title: "Number of entries",
},
etype: 16,
esize: 8,
arrlen: 0,
arrdim: 0,
maxidx: [5]int32{0, 0, 0, 0, 0},
offset: 0,
ename: "Long64_t",
xmin: 0,
xmax: 0,
factor: 0,
},
rvers: 2,
},
&tstreamerBasicType{
tstreamerElement: tstreamerElement{
rvers: 4,
named: tnamed{
rvers: 1,
obj: tobject{id: 0x0, bits: 0x3000000},
name: "fTotBytes",
title: "Total number of bytes in all branches before compression",
},
etype: 16,
esize: 8,
arrlen: 0,
arrdim: 0,
maxidx: [5]int32{0, 0, 0, 0, 0},
offset: 0,
ename: "Long64_t",
xmin: 0,
xmax: 0,
factor: 0,
},
rvers: 2,
},
&tstreamerBasicType{
tstreamerElement: tstreamerElement{
rvers: 4,
named: tnamed{
rvers: 1,
obj: tobject{id: 0x0, bits: 0x3000000},
name: "fZipBytes",
title: "Total number of bytes in all branches after compression",
},
etype: 16,
esize: 8,
arrlen: 0,
arrdim: 0,
maxidx: [5]int32{0, 0, 0, 0, 0},
offset: 0,
ename: "Long64_t",
xmin: 0,
xmax: 0,
factor: 0,
},
rvers: 2,
},
&tstreamerBasicType{
tstreamerElement: tstreamerElement{
rvers: 4,
named: tnamed{
rvers: 1,
obj: tobject{id: 0x0, bits: 0x3000000},
name: "fSavedBytes",
title: "Number of autosaved bytes",
},
etype: 16,
esize: 8,
arrlen: 0,
arrdim: 0,
maxidx: [5]int32{0, 0, 0, 0, 0},
offset: 0,
ename: "Long64_t",
xmin: 0,
xmax: 0,
factor: 0,
},
rvers: 2,
},
&tstreamerBasicType{
tstreamerElement: tstreamerElement{
rvers: 4,
named: tnamed{
rvers: 1,
obj: tobject{id: 0x0, bits: 0x3000000},
name: "fFlushedBytes",
title: "Number of autoflushed bytes",
},
etype: 16,
esize: 8,
arrlen: 0,
arrdim: 0,
maxidx: [5]int32{0, 0, 0, 0, 0},
offset: 0,
ename: "Long64_t",
xmin: 0,
xmax: 0,
factor: 0,
},
rvers: 2,
},
&tstreamerBasicType{
tstreamerElement: tstreamerElement{
rvers: 4,
named: tnamed{
rvers: 1,
obj: tobject{id: 0x0, bits: 0x3000000},
name: "fWeight",
title: "Tree weight (see TTree::SetWeight)",
},
etype: 8,
esize: 8,
arrlen: 0,
arrdim: 0,
maxidx: [5]int32{0, 0, 0, 0, 0},
offset: 0,
ename: "Double_t",
xmin: 0,
xmax: 0,
factor: 0,
},
rvers: 2,
},
&tstreamerBasicType{
tstreamerElement: tstreamerElement{
rvers: 4,
named: tnamed{
rvers: 1,
obj: tobject{id: 0x0, bits: 0x3000000},
name: "fTimerInterval",
title: "Timer interval in milliseconds",
},
etype: 3,
esize: 4,
arrlen: 0,
arrdim: 0,
maxidx: [5]int32{0, 0, 0, 0, 0},
offset: 0,
ename: "Int_t",
xmin: 0,
xmax: 0,
factor: 0,
},
rvers: 2,
},
&tstreamerBasicType{
tstreamerElement: tstreamerElement{
rvers: 4,
named: tnamed{
rvers: 1,
obj: tobject{id: 0x0, bits: 0x3000000},
name: "fScanField",
title: "Number of runs before prompting in Scan",
},
etype: 3,
esize: 4,
arrlen: 0,
arrdim: 0,
maxidx: [5]int32{0, 0, 0, 0, 0},
offset: 0,
ename: "Int_t",
xmin: 0,
xmax: 0,
factor: 0,
},
rvers: 2,
},
&tstreamerBasicType{
tstreamerElement: tstreamerElement{
rvers: 4,
named: tnamed{
rvers: 1,
obj: tobject{id: 0x0, bits: 0x3000000},
name: "fUpdate",
title: "Update frequency for EntryLoop",
},
etype: 3,
esize: 4,
arrlen: 0,
arrdim: 0,
maxidx: [5]int32{0, 0, 0, 0, 0},
offset: 0,
ename: "Int_t",
xmin: 0,
xmax: 0,
factor: 0,
},
rvers: 2,
},
&tstreamerBasicType{
tstreamerElement: tstreamerElement{
rvers: 4,
named: tnamed{
rvers: 1,
obj: tobject{id: 0x0, bits: 0x3000000},
name: "fDefaultEntryOffsetLen",
title: "Initial Length of fEntryOffset table in the basket buffers",
},
etype: 3,
esize: 4,
arrlen: 0,
arrdim: 0,
maxidx: [5]int32{0, 0, 0, 0, 0},
offset: 0,
ename: "Int_t",
xmin: 0,
xmax: 0,
factor: 0,
},
rvers: 2,
},
&tstreamerBasicType{
tstreamerElement: tstreamerElement{
rvers: 4,
named: tnamed{
rvers: 1,
obj: tobject{id: 0x0, bits: 0x3000000},
name: "fNClusterRange",
title: "Number of Cluster range in addition to the one defined by 'AutoFlush'",
},
etype: 6,
esize: 4,
arrlen: 0,
arrdim: 0,
maxidx: [5]int32{0, 0, 0, 0, 0},
offset: 0,
ename: "Int_t",
xmin: 0,
xmax: 0,
factor: 0,
},
rvers: 2,
},
&tstreamerBasicType{
tstreamerElement: tstreamerElement{
rvers: 4,
named: tnamed{
rvers: 1,
obj: tobject{id: 0x0, bits: 0x3000000},
name: "fMaxEntries",
title: "Maximum number of entries in case of circular buffers",
},
etype: 16,
esize: 8,
arrlen: 0,
arrdim: 0,
maxidx: [5]int32{0, 0, 0, 0, 0},
offset: 0,
ename: "Long64_t",
xmin: 0,
xmax: 0,
factor: 0,
},
rvers: 2,
},
&tstreamerBasicType{
tstreamerElement: tstreamerElement{
rvers: 4,
named: tnamed{
rvers: 1,
obj: tobject{id: 0x0, bits: 0x3000000},
name: "fMaxEntryLoop",
title: "Maximum number of entries to process",
},
etype: 16,
esize: 8,
arrlen: 0,
arrdim: 0,
maxidx: [5]int32{0, 0, 0, 0, 0},
offset: 0,
ename: "Long64_t",
xmin: 0,
xmax: 0,
factor: 0,
},
rvers: 2,
},
&tstreamerBasicType{
tstreamerElement: tstreamerElement{
rvers: 4,
named: tnamed{
rvers: 1,
obj: tobject{id: 0x0, bits: 0x3000000},
name: "fMaxVirtualSize",
title: "Maximum total size of buffers kept in memory",
},
etype: 16,
esize: 8,
arrlen: 0,
arrdim: 0,
maxidx: [5]int32{0, 0, 0, 0, 0},
offset: 0,
ename: "Long64_t",
xmin: 0,
xmax: 0,
factor: 0,
},
rvers: 2,
},
&tstreamerBasicType{
tstreamerElement: tstreamerElement{
rvers: 4,
named: tnamed{
rvers: 1,
obj: tobject{id: 0x0, bits: 0x3000000},
name: "fAutoSave",
title: "Autosave tree when fAutoSave bytes produced",
},
etype: 16,
esize: 8,
arrlen: 0,
arrdim: 0,
maxidx: [5]int32{0, 0, 0, 0, 0},
offset: 0,
ename: "Long64_t",
xmin: 0,
xmax: 0,
factor: 0,
},
rvers: 2,
},
&tstreamerBasicType{
tstreamerElement: tstreamerElement{
rvers: 4,
named: tnamed{
rvers: 1,
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