#!/usr/bin/env pytest
# -*- coding: utf-8 -*-
###############################################################################
# $Id: ogr_basic_test.py abbdb7ff7a84bdb2177a70981b817f6347daa9c0 2020-10-27 21:35:24 +0100 Even Rouault $
#
# Project:  GDAL/OGR Test Suite
# Purpose:  Test basic OGR functionality against test shapefiles.
# Author:   Frank Warmerdam <warmerdam@pobox.com>
#
###############################################################################
# Copyright (c) 2003, Frank Warmerdam <warmerdam@pobox.com>
# Copyright (c) 2008-2014, Even Rouault <even dot rouault at spatialys.com>
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Library General Public
# License as published by the Free Software Foundation; either
# version 2 of the License, or (at your option) any later version.
#
# This library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
# Library General Public License for more details.
#
# You should have received a copy of the GNU Library General Public
# License along with this library; if not, write to the
# Free Software Foundation, Inc., 59 Temple Place - Suite 330,
# Boston, MA 02111-1307, USA.
###############################################################################

import os
import struct
import sys


import gdaltest
import ogrtest
from osgeo import gdal
from osgeo import ogr
from osgeo import osr
import pytest

###############################################################################


def test_ogr_basic_1():

    gdaltest.ds = ogr.Open('data/poly.shp')

    assert gdaltest.ds is not None

###############################################################################
# Test Feature counting.


def test_ogr_basic_2():

    gdaltest.lyr = gdaltest.ds.GetLayerByName('poly')

    assert gdaltest.lyr.GetName() == 'poly'
    assert gdaltest.lyr.GetGeomType() == ogr.wkbPolygon

    assert gdaltest.lyr.GetLayerDefn().GetName() == 'poly'
    assert gdaltest.lyr.GetLayerDefn().GetGeomType() == ogr.wkbPolygon

    count = gdaltest.lyr.GetFeatureCount()
    assert count == 10, \
        ('Got wrong count with GetFeatureCount() - %d, expecting 10' % count)

    # Now actually iterate through counting the features and ensure they agree.
    gdaltest.lyr.ResetReading()

    count2 = 0
    feat = gdaltest.lyr.GetNextFeature()
    while feat is not None:
        count2 = count2 + 1
        feat = gdaltest.lyr.GetNextFeature()

    assert count2 == 10, \
        ('Got wrong count with GetNextFeature() - %d, expecting 10' % count2)

###############################################################################
# Test Spatial Query.


def test_ogr_basic_3():

    minx = 479405
    miny = 4762826
    maxx = 480732
    maxy = 4763590

    ###########################################################################
    # Create query geometry.

    ring = ogr.Geometry(type=ogr.wkbLinearRing)
    ring.AddPoint(minx, miny)
    ring.AddPoint(maxx, miny)
    ring.AddPoint(maxx, maxy)
    ring.AddPoint(minx, maxy)
    ring.AddPoint(minx, miny)

    poly = ogr.Geometry(type=ogr.wkbPolygon)
    poly.AddGeometryDirectly(ring)

    gdaltest.lyr.SetSpatialFilter(poly)
    gdaltest.lyr.SetSpatialFilter(gdaltest.lyr.GetSpatialFilter())
    gdaltest.lyr.ResetReading()

    count = gdaltest.lyr.GetFeatureCount()
    assert count == 1, \
        ('Got wrong feature count with spatial filter, expected 1, got %d' % count)

    feat1 = gdaltest.lyr.GetNextFeature()
    feat2 = gdaltest.lyr.GetNextFeature()

    assert feat1 is not None and feat2 is None, \
        'Got too few or too many features with spatial filter.'

    gdaltest.lyr.SetSpatialFilter(None)
    count = gdaltest.lyr.GetFeatureCount()
    assert count == 10, \
        ('Clearing spatial query may not have worked properly, getting\n%d features instead of expected 10 features.' % count)

###############################################################################
# Test GetDriver().


def test_ogr_basic_4():
    driver = gdaltest.ds.GetDriver()
    assert driver is not None, 'GetDriver() returns None'

    assert driver.GetName() == 'ESRI Shapefile', \
        ('Got wrong driver name: ' + driver.GetName())

###############################################################################
# Test attribute query on special field fid - per bug 1468.


def test_ogr_basic_5():

    gdaltest.lyr.SetAttributeFilter('FID = 3')
    gdaltest.lyr.ResetReading()

    feat1 = gdaltest.lyr.GetNextFeature()
    feat2 = gdaltest.lyr.GetNextFeature()

    gdaltest.lyr.SetAttributeFilter(None)

    assert feat1 is not None and feat2 is None, 'unexpected result count.'

    assert feat1.GetFID() == 3, 'got wrong feature.'


###############################################################################
# Test opening a dataset with an empty string and a non existing dataset
def test_ogr_basic_6():

    # Put inside try/except for OG python bindings
    assert ogr.Open('') is None

    assert ogr.Open('non_existing') is None

###############################################################################
# Test ogr.Feature.Equal()


def test_ogr_basic_7():

    feat_defn = ogr.FeatureDefn()
    feat = ogr.Feature(feat_defn)
    assert feat.Equal(feat)

    try:
        feat.SetFieldIntegerList
    except AttributeError:
        pytest.skip()

    feat_clone = feat.Clone()
    assert feat.Equal(feat_clone)

    # We MUST delete now as we are changing the feature defn afterwards!
    # Crash guaranteed otherwise
    feat = None
    feat_clone = None

    field_defn = ogr.FieldDefn('field1', ogr.OFTInteger)
    feat_defn.AddFieldDefn(field_defn)
    field_defn = ogr.FieldDefn('field2', ogr.OFTReal)
    feat_defn.AddFieldDefn(field_defn)
    field_defn = ogr.FieldDefn('field3', ogr.OFTString)
    feat_defn.AddFieldDefn(field_defn)
    field_defn = ogr.FieldDefn('field4', ogr.OFTIntegerList)
    feat_defn.AddFieldDefn(field_defn)
    field_defn = ogr.FieldDefn('field5', ogr.OFTRealList)
    feat_defn.AddFieldDefn(field_defn)
    field_defn = ogr.FieldDefn('field6', ogr.OFTStringList)
    feat_defn.AddFieldDefn(field_defn)
    field_defn = ogr.FieldDefn('field7', ogr.OFTDate)
    feat_defn.AddFieldDefn(field_defn)
    field_defn = ogr.FieldDefn('field8', ogr.OFTTime)
    feat_defn.AddFieldDefn(field_defn)
    field_defn = ogr.FieldDefn('field9', ogr.OFTDateTime)
    feat_defn.AddFieldDefn(field_defn)
    field_defn = ogr.FieldDefn('field10', ogr.OFTBinary)
    feat_defn.AddFieldDefn(field_defn)
    field_defn = ogr.FieldDefn('field11', ogr.OFTInteger64)
    feat_defn.AddFieldDefn(field_defn)

    feat = ogr.Feature(feat_defn)
    feat.SetFID(100)
    feat.SetField(0, 1)
    feat.SetField(1, 1.2)
    feat.SetField(2, "A")
    feat.SetFieldIntegerList(3, [1, 2])
    feat.SetFieldDoubleList(4, [1.2, 3.4])
    feat.SetFieldStringList(5, ["A", "B"])
    feat.SetField(6, 2010, 1, 8, 22, 48, 15, 4)
    feat.SetField(7, 2010, 1, 8, 22, 48, 15, 4)
    feat.SetField(8, 2010, 1, 8, 22, 48, 15, 4)
    feat.SetFieldBinaryFromHexString(9, '012345678ABCDEF')
    feat.SetField(10, 1234567890123)

    feat_clone = feat.Clone()
    if not feat.Equal(feat_clone):
        feat.DumpReadable()
        pytest.fail()

    feat_almost_clone = feat.Clone()
    geom = ogr.CreateGeometryFromWkt('POINT(0 1)')
    feat_almost_clone.SetGeometry(geom)
    if feat.Equal(feat_almost_clone):
        feat.DumpReadable()
        feat_almost_clone.DumpReadable()
        pytest.fail()

    feat_almost_clone = feat.Clone()
    geom = ogr.CreateGeometryFromWkt('POINT(0 1)')
    feat.SetGeometry(geom)
    if feat.Equal(feat_almost_clone):
        feat.DumpReadable()
        feat_almost_clone.DumpReadable()
        pytest.fail()

    feat_clone = feat.Clone()
    if not feat.Equal(feat_clone):
        feat.DumpReadable()
        feat_clone.DumpReadable()
        pytest.fail()

    feat_almost_clone = feat.Clone()
    feat_almost_clone.SetFID(99)
    if feat.Equal(feat_almost_clone):
        feat.DumpReadable()
        feat_almost_clone.DumpReadable()
        pytest.fail()

    feat_almost_clone = feat.Clone()
    feat_almost_clone.SetField(0, 2)
    if feat.Equal(feat_almost_clone):
        feat.DumpReadable()
        feat_almost_clone.DumpReadable()
        pytest.fail()

    feat_almost_clone = feat.Clone()
    feat_almost_clone.SetField(1, 2.2)
    if feat.Equal(feat_almost_clone):
        feat.DumpReadable()
        feat_almost_clone.DumpReadable()
        pytest.fail()

    feat_almost_clone = feat.Clone()
    feat_almost_clone.SetField(2, "B")
    if feat.Equal(feat_almost_clone):
        feat.DumpReadable()
        feat_almost_clone.DumpReadable()
        pytest.fail()

    feat_almost_clone = feat.Clone()
    feat_almost_clone.SetFieldIntegerList(3, [1, 2, 3])
    if feat.Equal(feat_almost_clone):
        feat.DumpReadable()
        feat_almost_clone.DumpReadable()
        pytest.fail()

    feat_almost_clone = feat.Clone()
    feat_almost_clone.SetFieldIntegerList(3, [1, 3])
    if feat.Equal(feat_almost_clone):
        feat.DumpReadable()
        feat_almost_clone.DumpReadable()
        pytest.fail()

    feat_almost_clone = feat.Clone()
    feat_almost_clone.SetFieldDoubleList(4, [1.2, 3.4, 5.6])
    if feat.Equal(feat_almost_clone):
        feat.DumpReadable()
        feat_almost_clone.DumpReadable()
        pytest.fail()

    feat_almost_clone = feat.Clone()
    feat_almost_clone.SetFieldDoubleList(4, [1.2, 3.5])
    if feat.Equal(feat_almost_clone):
        feat.DumpReadable()
        feat_almost_clone.DumpReadable()
        pytest.fail()

    feat_almost_clone = feat.Clone()
    feat_almost_clone.SetFieldStringList(5, ["A", "B", "C"])
    if feat.Equal(feat_almost_clone):
        feat.DumpReadable()
        feat_almost_clone.DumpReadable()
        pytest.fail()

    feat_almost_clone = feat.Clone()
    feat_almost_clone.SetFieldStringList(5, ["A", "D"])
    if feat.Equal(feat_almost_clone):
        feat.DumpReadable()
        feat_almost_clone.DumpReadable()
        pytest.fail()

    for num_field in [6, 7, 8]:
        for i in range(7):
            feat_almost_clone = feat.Clone()
            feat_almost_clone.SetField(num_field, 2010 + (i == 0), 1 + (i == 1),
                                       8 + (i == 2), 22 + (i == 3), 48 + (i == 4),
                                       15 + (i == 5), 4 + (i == 6))
            if feat.Equal(feat_almost_clone):
                feat.DumpReadable()
                feat_almost_clone.DumpReadable()
                pytest.fail()

    feat_almost_clone = feat.Clone()
    feat_almost_clone.SetFieldBinaryFromHexString(9, '00')
    if feat.Equal(feat_almost_clone):
        feat.DumpReadable()
        feat_almost_clone.DumpReadable()
        pytest.fail()

    feat_almost_clone = feat.Clone()
    feat_almost_clone.SetField(10, 2)
    if feat.Equal(feat_almost_clone):
        feat.DumpReadable()
        feat_almost_clone.DumpReadable()
        pytest.fail()

    feat_almost_clone = feat.Clone()
    feat_almost_clone.SetField(10, 2)
    if feat.Equal(feat_almost_clone):
        feat.DumpReadable()
        feat_almost_clone.DumpReadable()
        pytest.fail()

    
###############################################################################
# Issue several RegisterAll() to check that OGR drivers are good citizens


def test_ogr_basic_8():

    ogr.RegisterAll()
    ogr.RegisterAll()
    ogr.RegisterAll()

###############################################################################
# Test ogr.GeometryTypeToName (#4871)


def test_ogr_basic_9():

    geom_type_tuples = [[ogr.wkbUnknown, "Unknown (any)"],
                        [ogr.wkbPoint, "Point"],
                        [ogr.wkbLineString, "Line String"],
                        [ogr.wkbPolygon, "Polygon"],
                        [ogr.wkbMultiPoint, "Multi Point"],
                        [ogr.wkbMultiLineString, "Multi Line String"],
                        [ogr.wkbMultiPolygon, "Multi Polygon"],
                        [ogr.wkbGeometryCollection, "Geometry Collection"],
                        [ogr.wkbNone, "None"],
                        [ogr.wkbUnknown | ogr.wkb25DBit, "3D Unknown (any)"],
                        [ogr.wkbPoint25D, "3D Point"],
                        [ogr.wkbLineString25D, "3D Line String"],
                        [ogr.wkbPolygon25D, "3D Polygon"],
                        [ogr.wkbMultiPoint25D, "3D Multi Point"],
                        [ogr.wkbMultiLineString25D, "3D Multi Line String"],
                        [ogr.wkbMultiPolygon25D, "3D Multi Polygon"],
                        [ogr.wkbGeometryCollection25D, "3D Geometry Collection"],
                        [123456, "Unrecognized: 123456"]
                       ]

    for geom_type_tuple in geom_type_tuples:
        assert ogr.GeometryTypeToName(geom_type_tuple[0]) == geom_type_tuple[1]

    
###############################################################################
# Run test_ogrsf -all_drivers


def test_ogr_basic_10():

    import test_cli_utilities
    if test_cli_utilities.get_test_ogrsf_path() is None:
        pytest.skip()

    ret = gdaltest.runexternal(test_cli_utilities.get_test_ogrsf_path() + ' -all_drivers')

    assert ret.find('INFO') != -1 and ret.find('ERROR') == -1

###############################################################################
# Test double call to UseExceptions() (#5704)


def test_ogr_basic_11():

    if not ogrtest.have_geos():
        pytest.skip()

    used_exceptions_before = ogr.GetUseExceptions()
    for _ in range(2):
        ogr.UseExceptions()
        geom = ogr.CreateGeometryFromWkt('POLYGON ((-65 0, -30 -30, -30 0, -65 -30, -65 0))')
        with gdaltest.error_handler():
            geom.IsValid()
    if used_exceptions_before == 0:
        ogr.DontUseExceptions()

    
###############################################################################
# Test OFSTBoolean, OFSTInt16 and OFSTFloat32


def test_ogr_basic_12():

    # boolean integer
    feat_def = ogr.FeatureDefn()
    assert ogr.GetFieldSubTypeName(ogr.OFSTBoolean) == 'Boolean'
    field_def = ogr.FieldDefn('fld', ogr.OFTInteger)
    field_def.SetSubType(ogr.OFSTBoolean)
    assert field_def.GetSubType() == ogr.OFSTBoolean
    feat_def.AddFieldDefn(field_def)

    f = ogr.Feature(feat_def)
    f.SetField('fld', 0)
    f.SetField('fld', 1)
    gdal.ErrorReset()
    gdal.PushErrorHandler('CPLQuietErrorHandler')
    f.SetField('fld', 2)
    gdal.PopErrorHandler()
    assert gdal.GetLastErrorMsg() != ''
    assert f.GetField('fld') == 1

    f.SetField('fld', '0')
    f.SetField('fld', '1')
    gdal.ErrorReset()
    gdal.PushErrorHandler('CPLQuietErrorHandler')
    f.SetField('fld', '2')
    gdal.PopErrorHandler()
    assert gdal.GetLastErrorMsg() != ''
    assert f.GetField('fld') == 1

    gdal.ErrorReset()
    gdal.PushErrorHandler('CPLQuietErrorHandler')
    field_def = ogr.FieldDefn('fld', ogr.OFTString)
    field_def.SetSubType(ogr.OFSTBoolean)
    gdal.PopErrorHandler()
    assert gdal.GetLastErrorMsg() != ''
    assert field_def.GetSubType() == ogr.OFSTNone

    # boolean list
    feat_def = ogr.FeatureDefn()
    field_def = ogr.FieldDefn('fld', ogr.OFTIntegerList)
    field_def.SetSubType(ogr.OFSTBoolean)
    assert field_def.GetSubType() == ogr.OFSTBoolean
    feat_def.AddFieldDefn(field_def)

    f = ogr.Feature(feat_def)
    f.SetFieldIntegerList(0, [0, 1])
    gdal.ErrorReset()
    gdal.PushErrorHandler('CPLQuietErrorHandler')
    f.SetFieldIntegerList(0, [0, 1, 2, 1])
    gdal.PopErrorHandler()
    assert gdal.GetLastErrorMsg() != ''
    assert f.GetField('fld') == [0, 1, 1, 1]

    # int16 integer
    feat_def = ogr.FeatureDefn()
    assert ogr.GetFieldSubTypeName(ogr.OFSTInt16) == 'Int16'
    field_def = ogr.FieldDefn('fld', ogr.OFTInteger)
    field_def.SetSubType(ogr.OFSTInt16)
    assert field_def.GetSubType() == ogr.OFSTInt16
    feat_def.AddFieldDefn(field_def)

    f = ogr.Feature(feat_def)
    f.SetField('fld', -32768)
    f.SetField('fld', 32767)
    gdal.ErrorReset()
    gdal.PushErrorHandler('CPLQuietErrorHandler')
    f.SetField('fld', -32769)
    gdal.PopErrorHandler()
    assert gdal.GetLastErrorMsg() != ''
    assert f.GetField('fld') == -32768
    gdal.ErrorReset()
    gdal.PushErrorHandler('CPLQuietErrorHandler')
    f.SetField('fld', 32768)
    gdal.PopErrorHandler()
    assert gdal.GetLastErrorMsg() != ''
    assert f.GetField('fld') == 32767

    gdal.ErrorReset()
    gdal.PushErrorHandler('CPLQuietErrorHandler')
    field_def = ogr.FieldDefn('fld', ogr.OFTString)
    field_def.SetSubType(ogr.OFSTInt16)
    gdal.PopErrorHandler()
    assert gdal.GetLastErrorMsg() != ''
    assert field_def.GetSubType() == ogr.OFSTNone

    # float32
    feat_def = ogr.FeatureDefn()
    assert ogr.GetFieldSubTypeName(ogr.OFSTFloat32) == 'Float32'
    field_def = ogr.FieldDefn('fld', ogr.OFTReal)
    field_def.SetSubType(ogr.OFSTFloat32)
    assert field_def.GetSubType() == ogr.OFSTFloat32
    feat_def.AddFieldDefn(field_def)

    if False:  # pylint: disable=using-constant-test
        f = ogr.Feature(feat_def)
        gdal.ErrorReset()
        f.SetField('fld', '1.23')
        assert gdal.GetLastErrorMsg() == ''
        gdal.ErrorReset()
        gdal.PushErrorHandler('CPLQuietErrorHandler')
        f.SetField('fld', 1.230000000001)
        gdal.PopErrorHandler()
        assert gdal.GetLastErrorMsg() != ''
        if f.GetField('fld') == pytest.approx(1.23, abs=1e-8):
            f.DumpReadable()
            pytest.fail()

    gdal.ErrorReset()
    gdal.PushErrorHandler('CPLQuietErrorHandler')
    field_def = ogr.FieldDefn('fld', ogr.OFSTFloat32)
    field_def.SetSubType(ogr.OFSTInt16)
    gdal.PopErrorHandler()
    assert gdal.GetLastErrorMsg() != ''
    assert field_def.GetSubType() == ogr.OFSTNone

###############################################################################
# Test OGRParseDate (#6452)


def test_ogr_basic_13():
    feat_defn = ogr.FeatureDefn('test')
    field_defn = ogr.FieldDefn('date', ogr.OFTDateTime)
    feat_defn.AddFieldDefn(field_defn)

    tests = [('2016/1/1', '2016/01/01 00:00:00'),
             ('2016/1/1 12:34', '2016/01/01 12:34:00'),
             ('2016/1/1 12:34:56', '2016/01/01 12:34:56'),
             ('2016/1/1 12:34:56.789', '2016/01/01 12:34:56.789'),
             ('2016/12/31', '2016/12/31 00:00:00'),
             ('-2016/12/31', '-2016/12/31 00:00:00'),
             ('2016-12-31', '2016/12/31 00:00:00'),
             ('0080/1/1', '0080/01/01 00:00:00'),
             ('80/1/1', '1980/01/01 00:00:00'),
             ('0010/1/1', '0010/01/01 00:00:00'),
             ('9/1/1', '2009/01/01 00:00:00'),
             ('10/1/1', '2010/01/01 00:00:00'),
             ('2016-13-31', None),
             ('2016-0-31', None),
             ('2016-1-32', None),
             ('2016-1-0', None),
             ('0/1/1', '2000/01/01 00:00:00'),
             ('00/1/1', '2000/01/01 00:00:00'),
             ('00/00/00', None),
             ('000/00/00', None),
             ('0000/00/00', None),
             ('//foo', None)]

    for (val, expected_ret) in tests:
        f = ogr.Feature(feat_defn)
        f.SetField('date', val)
        assert f.GetField('date') == expected_ret, val

    
###############################################################################
# Test ogr.Open(.) in an empty directory


def test_ogr_basic_14():

    os.mkdir('tmp/ogr_basic_14')
    os.chdir('tmp/ogr_basic_14')
    ds = ogr.Open('.')
    os.chdir('../..')

    assert ds is None

    os.rmdir('tmp/ogr_basic_14')

###############################################################################
# Test exceptions with OGRErr return code


def test_ogr_basic_15():

    ds = ogr.Open('data/poly.shp')
    lyr = ds.GetLayer(0)

    used_exceptions_before = ogr.GetUseExceptions()
    ogr.UseExceptions()
    try:
        lyr.CreateFeature(ogr.Feature(lyr.GetLayerDefn()))
    except RuntimeError as e:
        ok = str(e).find('CreateFeature : unsupported operation on a read-only datasource') >= 0
        assert ok, ('Got: %s' + str(e))
        return
    finally:
        if used_exceptions_before == 0:
            ogr.DontUseExceptions()

    pytest.fail('Expected exception')


###############################################################################
# Test issue with Python 3.5 and older SWIG (#6749)

def ogr_basic_16_make_geom():
    geom = ogr.Geometry(ogr.wkbPoint)
    geom.AddPoint_2D(0, 0)
    return geom


def ogr_basic_16_gen_list(N):
    for i in range(N):
        ogr_basic_16_make_geom()
        yield i


def test_ogr_basic_16():

    assert list(ogr_basic_16_gen_list(2)) == [0, 1]


def test_ogr_basic_invalid_unicode():

    if sys.version_info >= (3, 0, 0):
        val = '\udcfc'
    else:
        exec("val = u'\\udcfc'")

    try:
        ogr.Open(val)
    except:
        pass

    data_source = ogr.GetDriverByName('Memory').CreateDataSource('')
    layer = data_source.CreateLayer("test")
    layer.CreateField(ogr.FieldDefn('attr', ogr.OFTString))
    feature = ogr.Feature(layer.GetLayerDefn())
    try:
        feature.SetField('attr', val)
    except:
        pass

    

def test_ogr_basic_dataset_slice():

    ds = ogr.GetDriverByName('Memory').CreateDataSource('')
    ds.CreateLayer('lyr1')
    ds.CreateLayer('lyr2')
    ds.CreateLayer('lyr3')

    lyrs = [lyr.GetName() for lyr in ds[1:3]]
    assert lyrs == ['lyr2', 'lyr3']

    lyrs = [lyr.GetName() for lyr in ds[0:4]]
    assert lyrs == ['lyr1', 'lyr2', 'lyr3']

    lyrs = [lyr.GetName() for lyr in ds[0:3:2]]
    assert lyrs == ['lyr1', 'lyr3']


def test_ogr_basic_feature_iterator():

    lyr = gdaltest.ds.GetLayer(0)

    count = 0
    for f in lyr:
        count += 1
    assert count == 10

    count = 0
    for f in lyr:
        count += 1
    assert count == 10


def test_ogr_basic_dataset_copy_layer_dst_srswkt():

    ds = ogr.GetDriverByName('Memory').CreateDataSource('')
    src_lyr = ds.CreateLayer('lyr1')
    sr = osr.SpatialReference()
    sr.SetFromUserInput('WGS84')
    sr.SetAxisMappingStrategy(osr.OAMS_TRADITIONAL_GIS_ORDER)
    out_lyr = ds.CopyLayer(src_lyr, 'lyr2',
                           options=['DST_SRSWKT=' + sr.ExportToWkt()])
    assert out_lyr.GetSpatialRef() is not None
    assert out_lyr.GetSpatialRef().IsSame(sr)


def test_ogr_basic_field_alternative_name():
    field_defn = ogr.FieldDefn('test')

    assert field_defn.GetAlternativeName() == ''

    field_defn.SetAlternativeName('my alias')
    assert field_defn.GetAlternativeName() == 'my alias'


def test_ogr_basic_float32_formatting():

    def cast_as_float(x):
        return struct.unpack('f', struct.pack('f', x))[0]

    feat_defn = ogr.FeatureDefn('test')
    fldn_defn = ogr.FieldDefn('float32', ogr.OFTReal)
    fldn_defn.SetSubType(ogr.OFSTFloat32)
    feat_defn.AddFieldDefn(fldn_defn)

    f = ogr.Feature(feat_defn)
    for x in ('0.35', '0.15', '123.0', '0.12345678', '1.2345678e-15'):
        f['float32'] = cast_as_float(float(x))
        assert f.GetFieldAsString('float32').replace('e+0', 'e+').replace('e-0', 'e-') == x


    feat_defn = ogr.FeatureDefn('test')
    fldn_defn = ogr.FieldDefn('float32_list', ogr.OFTRealList)
    fldn_defn.SetSubType(ogr.OFSTFloat32)
    feat_defn.AddFieldDefn(fldn_defn)

    f = ogr.Feature(feat_defn)
    f['float32_list'] = [ cast_as_float(0.35) ]
    assert f.GetFieldAsString('float32_list') == '(1:0.35)'

###############################################################################
# cleanup


def test_ogr_basic_cleanup():
    gdaltest.lyr = None
    gdaltest.ds = None
