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godal_test.go
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// Copyright 2021 Airbus Defence and Space
//
// 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
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package godal
import (
"bytes"
"context"
"errors"
"fmt"
"io"
"io/ioutil"
"math"
"os"
"path"
"path/filepath"
"strings"
"syscall"
"testing"
"time"
"cloud.google.com/go/storage"
"github.com/airbusgeo/osio"
"github.com/airbusgeo/osio/gcs"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
"google.golang.org/api/option"
)
func init() {
RegisterInternalDrivers()
}
type errChecker struct {
errs int
}
func (e *errChecker) ErrorHandler(ec ErrorCategory, code int, message string) error {
if ec >= CE_Warning {
e.errs++
return errors.New(message)
}
return nil
}
func eh() *errChecker {
return &errChecker{}
}
func tempfile() string {
f, err := ioutil.TempFile("", "")
if err != nil {
panic(err)
}
f.Close()
os.Remove(f.Name())
return f.Name()
}
func TestCBuffer(t *testing.T) {
var buf interface{}
buf = make([]byte, 100)
_ = cBuffer(buf, 100)
assert.Equal(t, Byte, bufferType(buf))
assert.Equal(t, 1, bufferType(buf).Size())
assert.Panics(t, func() { cBuffer(buf, 101) })
buf = make([]int8, 100)
_ = cBuffer(buf, 100)
assert.Equal(t, Int8, bufferType(buf))
assert.Equal(t, 1, bufferType(buf).Size())
assert.Panics(t, func() { cBuffer(buf, 101) })
buf = make([]int16, 100)
_ = cBuffer(buf, 100)
assert.Equal(t, Int16, bufferType(buf))
assert.Equal(t, 2, bufferType(buf).Size())
assert.Panics(t, func() { cBuffer(buf, 101) })
buf = make([]uint16, 100)
_ = cBuffer(buf, 100)
assert.Equal(t, UInt16, bufferType(buf))
assert.Equal(t, 2, bufferType(buf).Size())
assert.Panics(t, func() { cBuffer(buf, 101) })
buf = make([]int32, 100)
_ = cBuffer(buf, 100)
assert.Equal(t, Int32, bufferType(buf))
assert.Equal(t, 4, bufferType(buf).Size())
assert.Panics(t, func() { cBuffer(buf, 101) })
buf = make([]uint32, 100)
_ = cBuffer(buf, 100)
assert.Equal(t, UInt32, bufferType(buf))
assert.Equal(t, 4, bufferType(buf).Size())
assert.Panics(t, func() { cBuffer(buf, 101) })
buf = make([]float32, 100)
_ = cBuffer(buf, 100)
assert.Equal(t, Float32, bufferType(buf))
assert.Equal(t, 4, bufferType(buf).Size())
assert.Panics(t, func() { cBuffer(buf, 101) })
buf = make([]float64, 100)
_ = cBuffer(buf, 100)
assert.Equal(t, Float64, bufferType(buf))
assert.Equal(t, 8, bufferType(buf).Size())
assert.Panics(t, func() { cBuffer(buf, 101) })
buf = make([]complex64, 100)
_ = cBuffer(buf, 100)
assert.Equal(t, CFloat32, bufferType(buf))
assert.Equal(t, 8, bufferType(buf).Size())
assert.Panics(t, func() { cBuffer(buf, 101) })
buf = make([]complex128, 100)
_ = cBuffer(buf, 100)
assert.Equal(t, CFloat64, bufferType(buf))
assert.Equal(t, 16, bufferType(buf).Size())
assert.Panics(t, func() { cBuffer(buf, 101) })
assert.Panics(t, func() { cBuffer("stringtest", 100) })
assert.Panics(t, func() { bufferType("stringtest") })
}
func TestColorTable(t *testing.T) {
ds, _ := Create(Memory, "", 1, Byte, 10, 10)
defer ds.Close()
bnd := ds.Bands()[0]
ct := bnd.ColorTable()
assert.Len(t, ct.Entries, 0)
ct.PaletteInterp = CMYKPalette
ct.Entries = [][4]int16{
{1, 1, 1, 1},
{2, 2, 2, 2},
}
err := bnd.SetColorTable(ct)
assert.NoError(t, err)
ehc := eh()
err = bnd.SetColorTable(ct, ErrLogger(ehc.ErrorHandler))
assert.NoError(t, err)
assert.Equal(t, 0, ehc.errs)
assert.Equal(t, CIPalette, bnd.ColorInterp())
ct2 := bnd.ColorTable()
assert.Equal(t, CMYKPalette, ct2.PaletteInterp)
assert.Equal(t, ct.Entries, ct2.Entries)
//clear
ct2.Entries = nil
err = bnd.SetColorTable(ct2)
assert.NoError(t, err)
ct3 := bnd.ColorTable()
assert.Len(t, ct3.Entries, 0)
}
func TestCreate(t *testing.T) {
tmpname := tempfile()
defer os.Remove(tmpname)
_, err := Create(GTiff, tmpname, 1, Byte, 20, 20, CreationOption("INVALID_OPT=BAR"))
assert.Error(t, err)
ehc := eh()
_, err = Create(GTiff, tmpname, 1, Byte, 20, 20, CreationOption("INVALID_OPT=BAR"), ErrLogger(ehc.ErrorHandler))
assert.Error(t, err)
_, err = Create(GTiff, "/this/path/does/not/exist", 1, Byte, 10, 10)
assert.Error(t, err)
ds, err := Create(GTiff, tmpname, 1, Byte, 20, 20)
driver := ds.Driver()
assert.Equal(t, "GeoTIFF", driver.LongName())
assert.Equal(t, "GTiff", driver.ShortName())
assert.NoError(t, err)
ds.Close()
ehc = eh()
ds, err = Create(GTiff, tmpname, 1, Byte, 20, 20, ErrLogger(ehc.ErrorHandler))
assert.NoError(t, err)
st := ds.Structure()
bnds := ds.Bands()
if st.SizeX != 20 || st.SizeY != 20 || len(bnds) != 1 || st.NBands != 1 {
t.Error("fail")
}
ci := bnds[0].ColorInterp()
if ci != CIGray || ci.Name() != "Gray" {
t.Error(ci.Name())
}
err = bnds[0].SetColorInterp(CIRed)
assert.NoError(t, err)
ehc = eh()
err = bnds[0].SetColorInterp(CIRed, ErrLogger(ehc.ErrorHandler))
assert.NoError(t, err)
ci = bnds[0].ColorInterp()
if ci != CIRed {
t.Error(ci.Name())
}
err = ds.Close()
assert.NoError(t, err)
st1, _ := os.Stat(tmpname)
tmpname2 := tempfile()
defer os.Remove(tmpname2)
ds, err = Create(GTiff, tmpname2, 1, Byte, 20, 20, CreationOption("TILED=YES", "BLOCKXSIZE=128", "BLOCKYSIZE=128"))
assert.NoError(t, err)
ehc = eh()
err = ds.Close(ErrLogger(ehc.ErrorHandler))
assert.NoError(t, err)
st2, _ := os.Stat(tmpname2)
if st1.Size() == st2.Size() {
t.Errorf("sizes: %d/%d", st1.Size(), st2.Size())
}
ehc = eh()
tmpname3 := tempfile()
defer os.Remove(tmpname3)
ds, err = Create(GTiff, tmpname3, 1, Int8, 20, 20, ErrLogger(ehc.ErrorHandler))
if CheckMinVersion(3, 7, 0) {
assert.NoError(t, err)
err = ds.Close(ErrLogger(ehc.ErrorHandler))
assert.NoError(t, err)
} else {
assert.Error(t, err, "godal.Int8 is not supported with GDAL<3.7.0, but godal.Create did not return an error")
}
}
func TestRegisterDrivers(t *testing.T) {
_, ok := RasterDriver(HFA)
assert.False(t, ok)
_, err := Open("testdata/test.img")
assert.Error(t, err)
hfa_err := RegisterRaster(HFA)
if hfa_err == nil { //HFA is not available by default with gdal >= 3.10
_, ok = RasterDriver(HFA)
assert.True(t, ok)
ds, err := Open("testdata/test.img")
assert.NoError(t, err)
ds.Close()
} else {
_, ok = RasterDriver(HFA)
assert.False(t, ok)
}
_, ok = VectorDriver(HFA)
assert.False(t, ok)
_, ok = VectorDriver(GeoJSON)
assert.True(t, ok)
_, ok = RasterDriver(GeoJSON)
assert.False(t, ok)
_, ok = RasterDriver("bazbaz")
assert.False(t, ok)
_, ok = VectorDriver("bazbaz")
assert.False(t, ok)
//make sur we can access driver through their real name and predefined var
err = RegisterVector("TAB")
assert.NoError(t, err)
err = RegisterVector(Mitab)
assert.NoError(t, err)
_, ok = VectorDriver(Mitab)
assert.True(t, ok)
_, ok = VectorDriver("Mapinfo File")
assert.True(t, ok)
supported := CheckMinVersion(3, 8, 0)
ehc := eh()
err = RegisterPlugin("foobarsljgsa", ErrLogger(ehc.ErrorHandler))
assert.Error(t, err)
if !supported {
assert.Contains(t, err.Error(), "GDALRegisterPlugin is only supported")
}
err = RegisterPlugin("foobarsljgsa")
assert.Error(t, err)
//smoke test for RegisterPlugins
RegisterPlugins()
}
func TestVectorCreate(t *testing.T) {
tf := tempfile()
defer os.Remove(tf)
//driver cannot create a raster dataset
_, err := Create(GeoJSON, tf, 1, Byte, 512, 512)
assert.Error(t, err)
_, err = CreateVector(GTiff, "")
assert.Error(t, err)
ehc := eh()
_, err = CreateVector(GTiff, "", ErrLogger(ehc.ErrorHandler))
assert.Error(t, err)
_, err = Create("foobar", tf, 1, Byte, 512, 512)
assert.Error(t, err)
_, err = CreateVector("foobar", "")
assert.Error(t, err)
tf = tempfile()
defer os.Remove(tf)
_, err = CreateVector(GeoJSON, "/this/path/does/not/exist")
if err == nil {
t.Error("error not caught")
}
_, err = CreateVector(GeoJSON, tf, CreationOption("FOO=BAR"))
if err == nil {
t.Error("error not raised")
}
tf = tempfile()
defer os.Remove(tf)
ds, err := CreateVector(GeoJSON, tf)
driver := ds.Driver()
assert.Equal(t, "GeoJSON", driver.LongName())
assert.Equal(t, "GeoJSON", driver.ShortName())
if err != nil {
t.Fatal(err)
}
defer ds.Close()
st := ds.Structure()
if st.DataType != Unknown || st.NBands > 0 {
t.Errorf("created raster %v", st)
}
}
func TestMisc(t *testing.T) {
assert.Panics(t, func() { Unknown.Size() }, "unknown datatype has no size")
}
func TestConfigOptions(t *testing.T) {
tmpdir, _ := ioutil.TempDir("", "")
tiffile := filepath.Join(tmpdir, "testfile.tif")
tiffile2 := filepath.Join(tmpdir, "testfile2.tif")
tfwfile := filepath.Join(tmpdir, "testfile.tfw")
tiffile2msk := filepath.Join(tmpdir, "testfile2.tif.msk")
defer func() {
_ = os.RemoveAll(tmpdir)
}()
//Create. withtout the configoption create() will fail
ds, err := Create(GTiff, tiffile, 1, Byte, 1024, 1024, CreationOption("INVALID_OPTION=TRUE"), ConfigOption("GDAL_VALIDATE_CREATION_OPTIONS=FALSE"))
assert.NoError(t, err)
_, _ = ds.CreateMaskBand(0x02) //For gdal <3.9, this will create tmpdir/testfile.msk
_ = ds.Close()
//Open
err = ioutil.WriteFile(tfwfile, []byte(`1
0
0
-1
0
0
`), 0666)
assert.NoError(t, err)
//worldfile sidecar is ignored
ds, _ = Open(tiffile)
_, err = ds.GeoTransform()
assert.Error(t, err)
/* deactivated test as it does not error as it should. gdal bug?
//worldfile sidecar is ignored when passing a list of files that does not contain worldfile
ds2, _ := Open(tiffile, SiblingFiles("testfile2.tfw"))
_, err = ds2.GeoTransform()
assert.Error(t, err)
gt2, _ := ds2.GeoTransform()
assert.Equal(t, [6]float64{}, gt2)
*/
//geotransform read from worldfile
ds3, _ := Open(tiffile, SiblingFiles())
gt3, _ := ds3.GeoTransform()
assert.Equal(t, [6]float64{-0.5, 1, 0, 0.5, 0, -1}, gt3)
dsm, _ := ds.Translate(tiffile2, nil, GTiff, ConfigOption("GDAL_TIFF_INTERNAL_MASK=YES"))
assert.NoFileExists(t, tiffile2msk)
/* TODO: ConfigOption for WarpInto
err = dsm.WarpInto([]*Dataset{ds}, nil, ConfigOption("GDAL_NUM_THREADS=-2", "CPL_DEBUG=ON"))
assert.Error(t, err)
*/
dsm.Close()
_ = os.Remove(tiffile2)
_, err = ds.Warp(tiffile2, nil, ConfigOption("GDAL_NUM_THREADS=-2"))
assert.Error(t, err)
ehc := eh()
_, err = ds.Warp(tiffile2, nil, ConfigOption("GDAL_NUM_THREADS=-2"), ErrLogger(ehc.ErrorHandler))
assert.Error(t, err)
ds.Close()
//no geotransform if worldfile is ignored
//no mask
ds, _ = Open(tiffile, ConfigOption("GDAL_DISABLE_READDIR_ON_OPEN=EMPTY_DIR"))
_, err = ds.GeoTransform()
assert.Error(t, err)
if CheckMinVersion(3, 9, 0) {
assert.Equal(t, 0x02, ds.Bands()[0].MaskFlags()) //gdal 3.9+ will not create a separate mask file by default
} else {
assert.NotEqual(t, 0x02, ds.Bands()[0].MaskFlags())
}
}
func TestHistogram(t *testing.T) {
ds, _ := Create(Memory, "", 1, Byte, 16, 16)
defer ds.Close()
buf := make([]byte, 256)
for i := range buf {
buf[i] = byte(i)
}
_ = ds.Write(0, 0, buf, 16, 16)
bnd := ds.Bands()[0]
_, err := bnd.Histogram()
assert.NoError(t, err)
ehc := eh()
hist, err := bnd.Histogram(ErrLogger(ehc.ErrorHandler))
assert.NoError(t, err)
ll := hist.Len()
assert.Equal(t, 256, ll)
for i := 0; i < ll; i++ {
b := hist.Bucket(i)
assert.Equal(t, float64(i)-0.5, b.Min)
assert.Equal(t, float64(i+1)-0.5, b.Max)
assert.Equal(t, uint64(1), b.Count)
}
hist, err = bnd.Histogram(IncludeOutOfRange(), Intervals(64, 63.5, 191.5))
assert.NoError(t, err)
ll = hist.Len()
assert.Equal(t, 64, ll)
for i := 0; i < ll; i++ {
b := hist.Bucket(i)
assert.Equal(t, 63.5+float64(i*2), b.Min)
assert.Equal(t, 63.5+float64(i*2+2), b.Max)
if i == 0 || i == ll-1 {
assert.Equal(t, uint64(66), b.Count) //66 is the 64 preceding + the 2 of the actual bucket
} else {
assert.Equal(t, uint64(2), b.Count)
}
}
_, err = bnd.Histogram(Approximate(), Intervals(64, 64, 192))
assert.NoError(t, err)
//to make histogram choke for coverage
ebnd := Band{}
_, err = ebnd.Histogram()
assert.Error(t, err)
ehc = eh()
_, err = ebnd.Histogram(ErrLogger(ehc.ErrorHandler))
assert.Error(t, err)
}
func TestSize(t *testing.T) {
ds, _ := Open("testdata/test.tif")
srm, err := NewSpatialRefFromEPSG(3857)
require.NoError(t, err)
srm.Close()
ehc := eh()
srm, err = NewSpatialRefFromEPSG(3857, ErrLogger(ehc.ErrorHandler))
require.NoError(t, err)
st := ds.Structure()
assert.Equal(t, 10, st.SizeX)
assert.Equal(t, 10, st.SizeY)
bounds, err := ds.Bounds()
assert.NoError(t, err)
/*
ehc = eh()
bounds, err = ds.Bounds(ErrLogger(ehc.ErrorHandler))
assert.NoError(t, err)
*/
assert.Equal(t, [4]float64{45, 25, 55, 35}, bounds)
bounds, err = ds.Bounds(srm)
assert.NoError(t, err)
assert.NotEqual(t, [4]float64{45, 25, 55, 35}, bounds)
_, err = ds.Bounds(&SpatialRef{})
assert.Error(t, err)
mds, _ := ds.Translate("", []string{"-of", "MEM"})
gt, _ := ds.GeoTransform()
ds.Close()
gt[5] = -gt[5]
gt[1] = -gt[1]
err = mds.SetGeoTransform(gt)
assert.NoError(t, err)
bounds, err = mds.Bounds()
assert.NoError(t, err)
assert.Equal(t, [4]float64{35, 35, 45, 45}, bounds)
bounds, err = mds.Bounds(srm)
assert.NoError(t, err)
assert.NotEqual(t, [4]float64{35, 35, 45, 45}, bounds)
mds.Close()
}
func TestBands(t *testing.T) {
ds, err := Open("testdata/test.tif")
require.NoError(t, err)
bands := ds.Bands()
assert.Len(t, bands, 3)
bst := bands[0].Structure()
assert.Equal(t, 256, bst.BlockSizeX)
assert.Equal(t, 256, bst.BlockSizeY)
assert.Equal(t, 1.0, bst.Scale)
assert.Equal(t, 0.0, bst.Offset)
dt := bands[1].Structure().DataType
assert.Equal(t, Byte, dt)
assert.Equal(t, "Byte", dt.String())
nd, ok := bands[2].NoData()
assert.Equal(t, true, ok)
assert.Equal(t, 99.0, nd)
}
func TestNoData(t *testing.T) {
ds, err := Create(Memory, "ffff", 2, Byte, 20, 20)
require.NoError(t, err)
defer ds.Close()
bands := ds.Bands()
err = bands[1].SetNoData(100)
assert.NoError(t, err)
ehc := eh()
err = bands[1].SetNoData(100, ErrLogger(ehc.ErrorHandler))
assert.NoError(t, err)
nd, ok := bands[1].NoData()
assert.Equal(t, 100.0, nd)
assert.Equal(t, true, ok)
err = bands[1].ClearNoData()
assert.NoError(t, err)
ehc = eh()
err = bands[1].ClearNoData(ErrLogger(ehc.ErrorHandler))
assert.NoError(t, err)
_, ok = bands[1].NoData()
assert.Equal(t, false, ok)
err = ds.SetNoData(101)
assert.NoError(t, err)
nd, ok = bands[0].NoData()
assert.Equal(t, 101.0, nd)
assert.Equal(t, true, ok)
}
func TestSetScale(t *testing.T) {
ds, err := Create(Memory, "ffff", 2, Byte, 20, 20)
require.NoError(t, err)
defer ds.Close()
bands := ds.Bands()
err = bands[1].SetScaleOffset(100, 100)
assert.NoError(t, err)
ehc := eh()
err = bands[1].SetScaleOffset(100, 100, ErrLogger(ehc.ErrorHandler))
assert.NoError(t, err)
st := bands[1].Structure()
assert.Equal(t, 100.0, st.Scale)
assert.Equal(t, 100.0, st.Offset)
err = bands[1].ClearScaleOffset()
assert.NoError(t, err)
ehc = eh()
err = bands[1].ClearScaleOffset(ErrLogger(ehc.ErrorHandler))
assert.NoError(t, err)
st = bands[1].Structure()
assert.Equal(t, 1.0, st.Scale)
assert.Equal(t, 0.0, st.Offset)
err = ds.SetScaleOffset(101, 101)
assert.NoError(t, err)
st = bands[0].Structure()
assert.Equal(t, 101.0, st.Scale)
assert.Equal(t, 101.0, st.Offset)
}
func TestStructure(t *testing.T) {
tmpname := tempfile()
defer os.Remove(tmpname)
ds, err := Create(GTiff, tmpname, 3, Byte, 64, 64, CreationOption("TILED=YES", "BLOCKXSIZE=32", "BLOCKYSIZE=32"))
require.NoError(t, err)
st := ds.Structure()
assert.Equal(t, 64, st.SizeX)
assert.Equal(t, 64, st.SizeY)
assert.Equal(t, 32, st.BlockSizeX)
assert.Equal(t, 32, st.BlockSizeY)
if x, y := st.BlockCount(); x != 2 || y != 2 {
t.Errorf("cx,cy: %d,%d", x, y)
}
if x, y := st.ActualBlockSize(0, 0); x != 32 || y != 32 {
t.Errorf("abx,abyy: %d,%d", x, y)
}
if x, y := st.ActualBlockSize(1, 1); x != 32 || y != 32 {
t.Errorf("abx,abyy: %d,%d", x, y)
}
if x, y := st.ActualBlockSize(2, 2); x != 0 || y != 0 {
t.Errorf("abx,abyy: %d,%d", x, y)
}
ds.Close()
ds, err = Create(GTiff, tmpname, 3, Byte, 65, 65, CreationOption("TILED=YES", "BLOCKXSIZE=32", "BLOCKYSIZE=32"))
require.NoError(t, err)
st = ds.Structure()
if x, y := st.BlockCount(); x != 3 || y != 3 {
t.Errorf("cx,cy: %d,%d", x, y)
}
if x, y := st.ActualBlockSize(2, 2); x != 1 || y != 1 {
t.Errorf("abx,abyy: %d,%d", x, y)
}
if x, y := st.ActualBlockSize(1, 1); x != 32 || y != 32 {
t.Errorf("abx,abyy: %d,%d", x, y)
}
if x, y := st.ActualBlockSize(3, 3); x != 0 || y != 0 {
t.Errorf("abx,abyy: %d,%d", x, y)
}
ds.Close()
ds, err = Create(GTiff, tmpname, 3, Byte, 63, 63, CreationOption("TILED=YES", "BLOCKXSIZE=32", "BLOCKYSIZE=32"))
require.NoError(t, err)
st = ds.Structure()
if x, y := st.BlockCount(); x != 2 || y != 2 {
t.Errorf("cx,cy: %d,%d", x, y)
}
if x, y := st.ActualBlockSize(2, 2); x != 0 || y != 0 {
t.Errorf("abx,abyy: %d,%d", x, y)
}
if x, y := st.ActualBlockSize(1, 1); x != 31 || y != 31 {
t.Errorf("abx,abyy: %d,%d", x, y)
}
if x, y := st.ActualBlockSize(0, 0); x != 32 || y != 32 {
t.Errorf("abx,abyy: %d,%d", x, y)
}
ds.Close()
}
func TestVersion(t *testing.T) {
AssertMinVersion(3, 0, 0)
assert.False(t, CheckMinVersion(99, 99, 99))
assert.True(t, CheckMinVersion(3, 0, 0))
assert.Panics(t, func() { AssertMinVersion(99, 99, 99) })
}
func TestReadOnlyDataset(t *testing.T) {
//These tests are essentially here to cover error cases
tmpdir, _ := ioutil.TempDir("", "")
fname := filepath.Join(tmpdir, "ff.tif")
defer func() {
_ = os.Chmod(tmpdir, 0777)
_ = os.Chmod(fname, 0777)
_ = os.RemoveAll(tmpdir)
}()
ds, _ := Open("testdata/test.tif")
rds, _ := ds.Translate(fname, []string{"-b", "1", "-b", "1", "-of", "GTiff"})
err := rds.Bands()[0].SetColorInterp(CIAlpha)
assert.NoError(t, err)
//Setting a second alpha band on a gtiff raises a warning
err = rds.Bands()[1].SetColorInterp(CIAlpha)
assert.Error(t, err)
_ = rds.Close()
_ = ds.Close()
_ = os.Chmod(fname, 0400)
ds, err = Open(fname)
require.NoError(t, err)
_ = os.Chmod(tmpdir, 0400)
_, err = ds.CreateMaskBand(0x02, ConfigOption("GDAL_TIFF_INTERNAL_MASK=YES"))
assert.Error(t, err)
ehc := eh()
_, err = ds.CreateMaskBand(0x02, ConfigOption("GDAL_TIFF_INTERNAL_MASK=YES"), ErrLogger(ehc.ErrorHandler))
assert.Error(t, err)
_, err = ds.Bands()[0].CreateMask(0x02, ConfigOption("GDAL_TIFF_INTERNAL_MASK=YES"))
assert.Error(t, err)
ehc = eh()
_, err = ds.Bands()[0].CreateMask(0x02, ConfigOption("GDAL_TIFF_INTERNAL_MASK=YES"), ErrLogger(ehc.ErrorHandler))
assert.Error(t, err)
err = ds.Bands()[0].Fill(5, 5)
assert.Error(t, err)
ehc = eh()
err = ds.Bands()[0].Fill(5, 5, ErrLogger(ehc.ErrorHandler))
assert.Error(t, err)
}
func TestDatasetRead(t *testing.T) {
ds, err := Create(Memory, "", 3, Byte, 100, 100)
if err != nil {
t.Fatal(err)
}
bnds := ds.Bands()
for i := range bnds {
err = bnds[i].Fill(float64(10*i), 0)
assert.NoError(t, err)
}
buf := make([]byte, 300)
err = ds.Read(95, 95, buf, 10, 10)
if err == nil {
t.Error("error not raised")
}
err = ds.Read(100, 100, buf, 10, 10)
if err == nil {
t.Error("error not raised")
}
err = ds.Read(0, 0, buf, 10, 10)
if err != nil {
t.Fatal(err)
}
if buf[0] != 0 || buf[1] != 10 || buf[2] != 20 {
t.Errorf("vals: %d %d %d", buf[0], buf[1], buf[2])
}
_ = ds.Read(0, 0, buf, 10, 10, Bands(1, 2), Window(5, 5))
if buf[0] != 10 || buf[1] != 20 {
t.Errorf("vals: %d %d", buf[0], buf[1])
}
_ = ds.Read(0, 0, buf, 10, 10, Bands(1, 2), BandInterleaved())
if buf[0] != 10 || buf[99] != 10 || buf[100] != 20 || buf[101] != 20 {
t.Errorf("vals: %d %d %d %d", buf[0], buf[99], buf[100], buf[101])
}
fbuf := make([]float64, 200)
err = ds.Read(0, 0, fbuf, 10, 10, Bands(0, 1))
if err != nil {
t.Error(err)
}
if fbuf[0] != 0 || fbuf[1] != 10 || fbuf[199] != 10 {
t.Errorf("%f %f %f", fbuf[0], fbuf[1], fbuf[199])
}
}
func TestCastedIO(t *testing.T) {
ds, _ := Create(Memory, "", 3, Byte, 10, 10)
data := make([]float64, 300)
for i := range data {
data[i] = float64(i / 3)
}
clear := func() {
for i := range data {
data[i] = float64(i / 3)
}
}
err := ds.Write(0, 0, data, 10, 10)
if err != nil {
t.Error(err)
}
clear()
err = ds.Read(0, 0, data, 10, 10)
if err != nil {
t.Error(err)
}
for i := range data {
if data[i] != float64(i/3) {
t.Errorf("pix %d: got %f expected %f", i, data[i], float64(i/3))
}
}
}
func TestBandRead(t *testing.T) {
ds, err := Create(Memory, "", 1, Byte, 100, 100)
if err != nil {
t.Fatal(err)
}
bnd := ds.Bands()[0]
buf := make([]byte, 100)
for x := 0; x < 10; x++ {
for y := 0; y < 10; y++ {
if x > y {
buf[y*10+x] = byte(x)
} else {
buf[y*10+x] = byte(y)
}
}
}
err = bnd.Write(0, 0, buf, 10, 10)
assert.NoError(t, err)
ehc := eh()
err = bnd.Write(0, 0, buf, 10, 10, ErrLogger(ehc.ErrorHandler))
assert.NoError(t, err)
err = bnd.Read(95, 95, buf, 10, 10)
assert.Error(t, err)
ehc = eh()
err = bnd.Read(95, 95, buf, 10, 10, ErrLogger(ehc.ErrorHandler))
assert.Error(t, err)
err = bnd.Read(100, 100, buf, 10, 10)
assert.Error(t, err)
err = bnd.Read(0, 0, buf, 10, 10)
assert.NoError(t, err)
if buf[0] != 0 || buf[99] != 9 {
t.Errorf("vals: %v", buf)
}
_ = bnd.Read(0, 0, buf, 10, 10, Window(5, 5))
if buf[0] != 0 || buf[99] != 4 {
t.Errorf("vals: %v", buf)
}
fbuf := make([]float64, 100)
err = bnd.Read(0, 0, fbuf, 10, 10)
if err != nil {
t.Error(err)
}
if fbuf[0] != 0 || fbuf[99] != 9 {
t.Errorf("%v", fbuf)
}
}
func TestStridedIO(t *testing.T) {
ds, _ := Create(Memory, "", 3, Byte, 2, 2)
defer func() {
_ = ds.Close()
}()
padData := []int32{
1, 2, 3, 4, 5, 6, 7, 8, 9,
10, 11, 12, 13, 14, 15, 16, 17, 18,
}
reset := func() {
for i := range padData {
padData[i] = 0
}
}
_ = ds.Write(0, 0, padData, 2, 2, LineStride(9))
reset()
_ = ds.Read(0, 0, padData, 2, 2, PixelStride(4))
assert.Equal(t, []int32{
1, 2, 3, 0, 4, 5, 6, 0,
10, 11, 12, 0, 13, 14, 15, 0,
}, padData[0:16])
reset()
_ = ds.Read(0, 0, padData, 2, 2, PixelStride(1), LineStride(2), BandStride(4))
assert.Equal(t, []int32{
1, 4, 10, 13, //b1
2, 5, 11, 14, //b2
3, 6, 12, 15, //b3
}, padData[0:12])
reset()
assert.Panics(t, func() {
_ = ds.Read(0, 0, padData[0:12], 2, 2, PixelStride(1), LineStride(2), BandStride(5))
})
assert.Panics(t, func() {
_ = ds.Read(0, 0, padData[0:12], 2, 2, PixelStride(1), LineStride(3), BandStride(4))
})
assert.Panics(t, func() {
_ = ds.Read(0, 0, padData[0:12], 2, 2, PixelStride(2), LineStride(2), BandStride(4))
})
padData = padData[0:8] //single band tests
bnd := ds.Bands()[0]
_ = bnd.Read(0, 0, padData, 2, 2, PixelStride(2))
assert.Equal(t, []int32{
1, 0, 4, 0,
10, 0, 13, 0,
}, padData)
reset()
_ = bnd.Read(0, 0, padData, 2, 2, PixelStride(2), LineStride(3))
assert.Equal(t, []int32{
1, 0, 4,
10, 0, 13,
0, 0, //overflow
}, padData)
reset()
assert.Panics(t, func() {
_ = bnd.Read(0, 0, padData[0:4], 2, 2, PixelStride(1), LineStride(3))
})
assert.Panics(t, func() {
_ = bnd.Read(0, 0, padData[0:4], 2, 2, PixelStride(2), LineStride(2))
})
}
func TestSpacedIO(t *testing.T) {
ds, _ := Create(Memory, "", 3, Byte, 8, 8)
defer func() {
_ = ds.Close()
}()
padData := make([]byte, 8*16*3)
for i := 0; i < 16; i++ {
for j := 0; j < 8; j++ {
padData[j*48+i*3] = uint8(i)
padData[j*48+i*3+1] = uint8(i + 16)
padData[j*48+i*3+2] = uint8(i + 32)
}
}
err := ds.Write(0, 0, padData, 8, 8, LineSpacing(16*3))
if err != nil {
t.Error(err)
}
for i := range padData {
padData[i] = 0
}
_ = ds.Read(0, 0, padData, 8, 8)
for i := 0; i < 8; i++ {
for j := 0; j < 8; j++ {
if padData[j*24+i*3] != uint8(i) {
t.Errorf("pix %d,%d: got %d expected %d", i, j, padData[j*24+i*3], i)
}
if padData[j*24+i*3+1] != uint8(i+16) {
t.Errorf("pix %d,%d: got %d expected %d", i, j, padData[j*24+i*3+1], i+16)
}
if padData[j*24+i*3+2] != uint8(i+32) {
t.Errorf("pix %d,%d: got %d expected %d", i, j, padData[j*24+i*3+2], i+32)
}
}
}
for i := range padData {
padData[i] = 0
}
_ = ds.Read(0, 0, padData, 8, 8, BandInterleaved())
for i := 0; i < 8; i++ {
for j := 0; j < 8; j++ {
if padData[j*8+i] != uint8(i) {
t.Errorf("pix 0 %d,%d: got %d expected %d", i, j, padData[j*8+i], i)
}
if padData[64+j*8+i] != uint8(i+16) {
t.Errorf("pix 1 %d,%d: got %d expected %d", i, j, padData[64+j*8+i], i+16)
}
if padData[128+j*8+i] != uint8(i+32) {
t.Errorf("pix 2 %d,%d: got %d expected %d", i, j, padData[128+j*8+i], i+32)
}
}
}
for i := range padData {
padData[i] = 0
}
//same as bandinterleaved, instead hard-coded
_ = ds.Read(0, 0, padData, 8, 8, BandSpacing(64), PixelSpacing(1), LineSpacing(8))
for i := 0; i < 8; i++ {
for j := 0; j < 8; j++ {
if padData[j*8+i] != uint8(i) {
t.Errorf("pix 0 %d,%d: got %d expected %d", i, j, padData[j*8+i], i)
}
if padData[64+j*8+i] != uint8(i+16) {
t.Errorf("pix 1 %d,%d: got %d expected %d", i, j, padData[64+j*8+i], i+16)
}
if padData[128+j*8+i] != uint8(i+32) {
t.Errorf("pix 2 %d,%d: got %d expected %d", i, j, padData[128+j*8+i], i+32)
}
}
}
for i := range padData {
padData[i] = 0
}
_ = ds.Read(0, 0, padData, 8, 8, Bands(0, 2))
for i := 0; i < 8; i++ {
for j := 0; j < 8; j++ {
if padData[j*16+i*2] != uint8(i) {
t.Errorf("pix 0 %d,%d: got %d expected %d", i, j, padData[j*16+i*2], i)
}
if padData[j*16+i*2+1] != uint8(i+32) {
t.Errorf("pix 2 %d,%d: got %d expected %d", i, j, padData[j*16+i*2+1], i+32)
}
}
}
for i := range padData {
padData[i] = 0
}
_ = ds.Read(0, 0, padData, 8, 8, BandInterleaved(), Bands(0, 2))
for i := 0; i < 8; i++ {
for j := 0; j < 8; j++ {
if padData[j*8+i] != uint8(i) {
t.Errorf("pix %d,%d: got %d expected %d", i, j, padData[j*8+i], i)
}
if padData[64+j*8+i] != uint8(i+32) {
t.Errorf("pix %d,%d: got %d expected %d", i, j, padData[64+j*8+i], i+32)
}
}
}
for i := range padData {
padData[i] = 0
}
_ = ds.Bands()[0].Read(0, 0, padData, 8, 8, LineSpacing(10))
for i := 0; i < 8; i++ {
for j := 0; j < 8; j++ {
if padData[j*10+i] != uint8(i) {