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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.
//+build go1.7
package rootio
import (
"io/ioutil"
"reflect"
"strings"
"testing"
)
func TestRBuffer(t *testing.T) {
data := make([]byte, 32)
r := NewRBuffer(data, nil, 0)
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)
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{obj: tobject{id: 0x0, bits: 0x3000000}, name: "my-name", title: "my-title"},
},
{
name: "TNamed",
file: "testdata/tnamed-cmssw.dat",
want: &tnamed{
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{
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{
obj: tobject{id: 0x0, bits: 0x3000000},
name: strings.Repeat("*", 256),
title: "my-title",
},
},
{
name: "TList",
want: &tlist{
name: "list-name",
objs: []Object{
&tnamed{obj: tobject{id: 0x0, bits: 0x3000000}, name: "n0", title: "t0"},
&tnamed{obj: tobject{id: 0x0, bits: 0x3000000}, name: "n1", title: "t1"},
},
},
},
{
name: "TObjArray",
want: &objarray{
obj: tobject{id: 0x0, bits: 0x3000000},
name: "my-objs",
arr: []Object{
&tnamed{obj: tobject{id: 0x0, bits: 0x3000000}, name: "n0", title: "t0"},
&tnamed{obj: tobject{id: 0x0, bits: 0x3000000}, name: "n1", title: "t1"},
&tnamed{obj: tobject{id: 0x0, bits: 0x3000000}, name: "n2", title: "t2"},
},
last: 2,
},
},
{
name: "TList",
file: "testdata/tlist-tsi.dat",
want: &tlist{
name: "",
objs: []Object{
&tstreamerInfo{
named: tnamed{obj: tobject{id: 0x0, bits: 0x3000000}, name: "TTree", title: ""},
chksum: 0xa2a28f2,
clsver: 19,
elems: []StreamerElement{
&tstreamerBase{
tstreamerElement: tstreamerElement{
named: tnamed{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},
ename: "BASE",
},
vbase: 1,
},
&tstreamerBase{
tstreamerElement: tstreamerElement{
named: tnamed{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},
ename: "BASE",
},
vbase: 1,
},
&tstreamerBase{
tstreamerElement: tstreamerElement{
named: tnamed{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},
ename: "BASE",
},
vbase: 1,
},
&tstreamerBase{
tstreamerElement: tstreamerElement{
named: tnamed{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},
ename: "BASE",
},
vbase: 2,
},
&tstreamerBasicType{
tstreamerElement: tstreamerElement{
named: tnamed{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},
ename: "Long64_t",
},
},
&tstreamerBasicType{
tstreamerElement: tstreamerElement{
named: tnamed{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},
ename: "Long64_t",
},
},
&tstreamerBasicType{
tstreamerElement: tstreamerElement{
named: tnamed{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},
ename: "Long64_t",
},
},
&tstreamerBasicType{
tstreamerElement: tstreamerElement{
named: tnamed{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},
ename: "Long64_t",
},
},
&tstreamerBasicType{
tstreamerElement: tstreamerElement{
named: tnamed{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},
ename: "Long64_t",
},
},
&tstreamerBasicType{
tstreamerElement: tstreamerElement{
named: tnamed{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},
ename: "Double_t",
},
},
&tstreamerBasicType{
tstreamerElement: tstreamerElement{
named: tnamed{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},
ename: "Int_t",
},
},
&tstreamerBasicType{
tstreamerElement: tstreamerElement{
named: tnamed{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},
ename: "Int_t",
},
},
&tstreamerBasicType{
tstreamerElement: tstreamerElement{
named: tnamed{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},
ename: "Int_t",
},
},
&tstreamerBasicType{
tstreamerElement: tstreamerElement{
named: tnamed{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},
ename: "Int_t",
},
},
&tstreamerBasicType{
tstreamerElement: tstreamerElement{
named: tnamed{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},
ename: "Int_t",
},
},
&tstreamerBasicType{
tstreamerElement: tstreamerElement{
named: tnamed{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},
ename: "Long64_t",
},
},
&tstreamerBasicType{
tstreamerElement: tstreamerElement{
named: tnamed{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},
ename: "Long64_t",
},
},
&tstreamerBasicType{
tstreamerElement: tstreamerElement{
named: tnamed{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},
ename: "Long64_t",
},
},
&tstreamerBasicType{
tstreamerElement: tstreamerElement{
named: tnamed{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},
ename: "Long64_t",
},
},
&tstreamerBasicType{
tstreamerElement: tstreamerElement{
named: tnamed{obj: tobject{id: 0x0, bits: 0x3000000}, name: "fAutoFlush", title: "Autoflush tree when fAutoFlush entries written"},
etype: 16,
esize: 8,
arrlen: 0,
arrdim: 0,
maxidx: [5]int32{0, 0, 0, 0, 0},
ename: "Long64_t",
},
},
&tstreamerBasicType{
tstreamerElement: tstreamerElement{
named: tnamed{obj: tobject{id: 0x0, bits: 0x3000000}, name: "fEstimate", title: "Number of entries to estimate histogram limits"},
etype: 16,
esize: 8,
arrlen: 0,
arrdim: 0,
maxidx: [5]int32{0, 0, 0, 0, 0},
ename: "Long64_t",
},
},
&tstreamerBasicPointer{
tstreamerElement: tstreamerElement{
named: tnamed{obj: tobject{id: 0x0, bits: 0x3000000}, name: "fClusterRangeEnd", title: "[fNClusterRange] Last entry of a cluster range."},
etype: 56,
esize: 8,
arrlen: 0,
arrdim: 0,
maxidx: [5]int32{0, 0, 0, 0, 0},
ename: "Long64_t*",
},
cvers: 19,
cname: "fNClusterRange",
ccls: "TTree",
},
&tstreamerBasicPointer{
tstreamerElement: tstreamerElement{
named: tnamed{obj: tobject{id: 0x0, bits: 0x3000000}, name: "fClusterSize", title: "[fNClusterRange] Number of entries in each cluster for a given range."},
etype: 56,
esize: 8,
arrlen: 0,
arrdim: 0,
maxidx: [5]int32{0, 0, 0, 0, 0},
ename: "Long64_t*",
},
cvers: 19,
cname: "fNClusterRange",
ccls: "TTree",
},
&tstreamerObject{
tstreamerElement: tstreamerElement{
named: tnamed{obj: tobject{id: 0x0, bits: 0x3000000}, name: "fBranches", title: "List of Branches"},
etype: 61,
esize: 64,
arrlen: 0,
arrdim: 0,
maxidx: [5]int32{0, 0, 0, 0, 0},
ename: "TObjArray",
},
},
&tstreamerObject{
tstreamerElement: tstreamerElement{
named: tnamed{obj: tobject{id: 0x0, bits: 0x3000000}, name: "fLeaves", title: "Direct pointers to individual branch leaves"},
etype: 61,
esize: 64,
arrlen: 0,
arrdim: 0,
maxidx: [5]int32{0, 0, 0, 0, 0},
ename: "TObjArray",
},
},
&tstreamerObjectPointer{
tstreamerElement: tstreamerElement{
named: tnamed{obj: tobject{id: 0x0, bits: 0x3000000}, name: "fAliases", title: "List of aliases for expressions based on the tree branches."},
etype: 64,
esize: 8,
arrlen: 0,
arrdim: 0,
maxidx: [5]int32{0, 0, 0, 0, 0},
ename: "TList*",
},
},
&tstreamerObjectAny{
tstreamerElement: tstreamerElement{
named: tnamed{obj: tobject{id: 0x0, bits: 0x3000000}, name: "fIndexValues", title: "Sorted index values"},
etype: 62,
esize: 24,
arrlen: 0,
arrdim: 0,
maxidx: [5]int32{0, 0, 0, 0, 0},
ename: "TArrayD",
},
},
&tstreamerObjectAny{
tstreamerElement: tstreamerElement{
named: tnamed{obj: tobject{id: 0x0, bits: 0x3000000}, name: "fIndex", title: "Index of sorted values"},
etype: 62,
esize: 24,
arrlen: 0,
arrdim: 0,
maxidx: [5]int32{0, 0, 0, 0, 0},
ename: "TArrayI",
},
},
&tstreamerObjectPointer{
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