Exemple #1
0
    def on_click_save(self, event):
        """
        Save change into a file
        """
        if not self._data:
            return
        self.on_change_run(event=None)
        self.on_change_title(event=None)
        path = None
        wildcard = "CanSAS 1D files(*.xml)|*.xml"
        dlg = wx.FileDialog(self, "Choose a file",
                            self._default_save_location, "", wildcard , wx.SAVE)

        for data in self._data:
            if issubclass(data.__class__, Data2D):
                msg = "No conventional writing format for \n\n"
                msg += "Data2D at this time.\n"
                dlg = wx.MessageDialog(None, msg, 'Error Loading File',
                                             wx.OK | wx.ICON_EXCLAMATION)
                dlg.ShowModal()
            else:
                if dlg.ShowModal() == wx.ID_OK:
                    path = dlg.GetPath()
                    mypath = os.path.basename(path)
                    loader = Loader()
                    format = ".xml"
                    if os.path.splitext(mypath)[1].lower() == format:
                        loader.save(path, data, format)
                    try:
                        self._default_save_location = os.path.dirname(path)
                    except:
                        pass
                    dlg.Destroy()
        event.Skip()
Exemple #2
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 def test_save_cansas_v1_0(self):
     filename = "isis_1_0_write_test.xml"
     xmlreader = XMLreader(self.isis_1_0, self.schema_1_0)
     valid = xmlreader.validate_xml()
     self.assertTrue(valid)
     reader_generic = Loader()
     dataloader = reader_generic.load(self.isis_1_0)
     reader_cansas = Reader()
     cansasreader = reader_cansas.read(self.isis_1_0)
     for i in range(len(dataloader)):
         self._check_data(dataloader[i])
         self._check_data(cansasreader[i])
         reader_generic.save(filename, dataloader[i], None)
         reader2 = Reader()
         return_data = reader2.read(filename)
         written_data = return_data[0]
         xmlwrite = XMLreader(filename, self.schema_1_0)
         valid = xmlreader.validate_xml()
         self.assertTrue(valid)
         self._check_data(written_data)
Exemple #3
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 def test_save_cansas_v1_0(self):
     xmlreader = XMLreader(self.isis_1_0, self.schema_1_0)
     self.assertTrue(xmlreader.validate_xml())
     reader_generic = Loader()
     dataloader = reader_generic.load(self.isis_1_0)
     reader_cansas = Reader()
     cansasreader = reader_cansas.read(self.isis_1_0)
     for i in range(len(dataloader)):
         self._check_data(dataloader[i])
         self._check_data(cansasreader[i])
         reader_generic.save(self.write_1_0_filename, dataloader[i], None)
         reader2 = Reader()
         self.assertTrue(os.path.isfile(self.write_1_0_filename))
         return_data = reader2.read(self.write_1_0_filename)
         written_data = return_data[0]
         xmlreader = XMLreader(self.write_1_0_filename, self.schema_1_0)
         self.assertTrue(xmlreader.validate_xml())
         self._check_data(written_data)
     if os.path.isfile(self.write_1_0_filename):
         os.remove(self.write_1_0_filename)
Exemple #4
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 def test_save_cansas_v1_0(self):
     xmlreader = XMLreader(self.isis_1_0, self.schema_1_0)
     self.assertTrue(xmlreader.validate_xml())
     reader_generic = Loader()
     dataloader = reader_generic.load(self.isis_1_0)
     reader_cansas = Reader()
     cansasreader = reader_cansas.read(self.isis_1_0)
     for i in range(len(dataloader)):
         self._check_data(dataloader[i])
         self._check_data(cansasreader[i])
         reader_generic.save(self.write_1_0_filename, dataloader[i], None)
         reader2 = Reader()
         self.assertTrue(os.path.isfile(self.write_1_0_filename))
         return_data = reader2.read(self.write_1_0_filename)
         written_data = return_data[0]
         xmlreader = XMLreader(self.write_1_0_filename, self.schema_1_0)
         self.assertTrue(xmlreader.validate_xml())
         self._check_data(written_data)
     if os.path.isfile(self.write_1_0_filename):
         os.remove(self.write_1_0_filename)
Exemple #5
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 def test_save_cansas_v1_0(self):
     filename = "isis_1_0_write_test.xml"
     xmlreader = XMLreader(self.isis_1_0, self.schema_1_0)
     valid = xmlreader.validate_xml()
     self.assertTrue(valid)
     reader_generic = Loader()
     dataloader = reader_generic.load(self.isis_1_0)
     reader_cansas = Reader()
     cansasreader = reader_cansas.read(self.isis_1_0)
     for i in range(len(dataloader)):
         self._check_data(dataloader[i])
         self._check_data(cansasreader[i])
         reader_generic.save(filename, dataloader[i], None)
         reader2 = Reader()
         return_data = reader2.read(filename)
         written_data = return_data[0]
         xmlwrite = XMLreader(filename, self.schema_1_0)
         valid = xmlreader.validate_xml()
         self.assertTrue(valid)
         self._check_data(written_data)
Exemple #6
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 def test_cansas_xml(self):
     xmlreader = XMLreader(self.isis_1_1, self.schema_1_1)
     valid = xmlreader.validate_xml()
     xmlreader.set_processing_instructions()
     self.assertTrue(valid)
     reader_generic = Loader()
     dataloader = reader_generic.load(self.isis_1_1)
     reader_cansas = Reader()
     cansasreader = reader_cansas.read(self.isis_1_1)
     for i in range(len(dataloader)):
         self._check_data(dataloader[i])
         self._check_data_1_1(dataloader[i])
         self._check_data(cansasreader[i])
         self._check_data_1_1(cansasreader[i])
         reader_generic.save(self.write_1_1_filename, dataloader[i], None)
         reader2 = Loader()
         self.assertTrue(os.path.isfile(self.write_1_1_filename))
         return_data = reader2.load(self.write_1_1_filename)
         written_data = return_data[0]
         self._check_data(written_data)
     if os.path.isfile(self.write_1_1_filename):
         os.remove(self.write_1_1_filename)
Exemple #7
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 def test_cansas_xml(self):
     xmlreader = XMLreader(self.isis_1_1, self.schema_1_1)
     valid = xmlreader.validate_xml()
     xmlreader.set_processing_instructions()
     self.assertTrue(valid)
     reader_generic = Loader()
     dataloader = reader_generic.load(self.isis_1_1)
     reader_cansas = Reader()
     cansasreader = reader_cansas.read(self.isis_1_1)
     for i in range(len(dataloader)):
         self._check_data(dataloader[i])
         self._check_data_1_1(dataloader[i])
         self._check_data(cansasreader[i])
         self._check_data_1_1(cansasreader[i])
         reader_generic.save(self.write_1_1_filename, dataloader[i], None)
         reader2 = Loader()
         self.assertTrue(os.path.isfile(self.write_1_1_filename))
         return_data = reader2.load(self.write_1_1_filename)
         written_data = return_data[0]
         self._check_data(written_data)
     if os.path.isfile(self.write_1_1_filename):
         os.remove(self.write_1_1_filename)
Exemple #8
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 def test_cansas_xml(self):
     filename = "isis_1_1_write_test.xml"
     xmlreader = XMLreader(self.isis_1_1, self.schema_1_1)
     valid = xmlreader.validate_xml()
     xmlreader.set_processing_instructions()
     self.assertTrue(valid)
     fo = open(self.isis_1_1)
     str = fo.read()
     reader_generic = Loader()
     dataloader = reader_generic.load(self.isis_1_1)
     reader_cansas = Reader()
     cansasreader = reader_cansas.read(self.isis_1_1)
     for i in range(len(dataloader)):
         self._check_data(dataloader[i])
         self._check_data_1_1(dataloader[i])
         self._check_data(cansasreader[i])
         self._check_data_1_1(cansasreader[i])
         reader_generic.save(filename, dataloader[i], None)
         fo = open(filename)
         str = fo.read()
         reader2 = Loader()
         return_data = reader2.load(filename)
         written_data = return_data[0]
         self._check_data(written_data)
Exemple #9
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 def test_cansas_xml(self):
     filename = "isis_1_1_write_test.xml"
     xmlreader = XMLreader(self.isis_1_1, self.schema_1_1)
     valid = xmlreader.validate_xml()
     xmlreader.set_processing_instructions()
     self.assertTrue(valid)
     fo = open(self.isis_1_1)
     str = fo.read()
     reader_generic = Loader()
     dataloader = reader_generic.load(self.isis_1_1)
     reader_cansas = Reader()
     cansasreader = reader_cansas.read(self.isis_1_1)
     for i in range(len(dataloader)):
         self._check_data(dataloader[i])
         self._check_data_1_1(dataloader[i])
         self._check_data(cansasreader[i])
         self._check_data_1_1(cansasreader[i])
         reader_generic.save(filename, dataloader[i], None)
         fo = open(filename)
         str = fo.read()
         reader2 = Loader()
         return_data = reader2.load(filename)
         written_data = return_data[0]
         self._check_data(written_data)
Exemple #10
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class cansas_reader_xml(unittest.TestCase):
    def setUp(self):
        self.loader = Loader()
        self.cansas_reader = Reader()
        self.xml_reader = XMLreader()
        self.xml_valid = find("cansas_test_modified.xml")
        self.xml_invalid = find("cansas_test.xml")
        self.cansas1d_badunits = find("cansas1d_badunits.xml")
        self.cansas1d = find("cansas1d.xml")
        self.cansas1d_slit = find("cansas1d_slit.xml")
        self.cansas1d_units = find("cansas1d_units.xml")
        self.cansas1d_notitle = find("cansas1d_notitle.xml")
        self.isis_1_0 = find("ISIS_1_0.xml")
        self.isis_1_1 = find("ISIS_1_1.xml")
        self.isis_1_1_notrans = find("ISIS_1_1_notrans.xml")
        self.isis_1_1_doubletrans = find("ISIS_1_1_doubletrans.xml")
        self.schema_1_0 = find("cansas1d_v1_0.xsd")
        self.schema_1_1 = find("cansas1d_v1_1.xsd")
        self.write_1_0_filename = find("isis_1_0_write_test.xml")
        self.write_1_1_filename = find("isis_1_1_write_test.xml")
        self.write_filename = find("write_test.xml")

    def get_number_of_entries(self, dictionary, name, i):
        if dictionary.get(name) is not None:
            i += 1
            name = name.split("_")[0]
            name += "_{0}".format(i)
            name = self.get_number_of_entries(dictionary, name, i)
        return name

    def test_invalid_xml(self):
        """
        Should fail gracefully and send a message to logger.info()
        """
        invalid = StringIO('<a><c></b></a>')
        self.assertRaises(XMLSyntaxError, lambda: XMLreader(invalid))

    def test_xml_validate(self):
        string = "<xsd:schema xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\">\n"
        string += "\t<xsd:element name=\"a\" type=\"AType\"/>\n"
        string += "\t<xsd:complexType name=\"AType\">\n"
        string += "\t\t<xsd:sequence>\n"
        string += "\t\t\t<xsd:element name=\"b\" type=\"xsd:string\" />\n"
        string += "\t\t</xsd:sequence>\n"
        string += "\t</xsd:complexType>\n"
        string += "</xsd:schema>"
        f = StringIO(string)
        xmlschema_doc = etree.parse(f)
        xmlschema = etree.XMLSchema(xmlschema_doc)
        valid = etree.parse(StringIO('<a><b></b></a>'))
        invalid = etree.parse(StringIO('<a><c></c></a>'))
        self.assertTrue(xmlschema.validate(valid))
        self.assertFalse(xmlschema.validate(invalid))

    def test_real_xml(self):
        reader = XMLreader(self.xml_valid, self.schema_1_0)
        valid = reader.validate_xml()
        self.assertTrue(valid)

    def _check_data(self, data):
        self.assertTrue(data.title == "TK49 c10_SANS")
        self.assertTrue(data.x.size == 138)
        self.assertTrue(len(data.meta_data) == 3)
        self.assertTrue(data.detector[0].distance_unit == "mm")
        self.assertTrue(data.detector[1].distance_unit == "mm")
        self.assertTrue(data.detector[0].name == "HAB")
        self.assertTrue(data.detector[1].name == "main-detector-bank")
        self.assertTrue(data.detector[0].distance == 575.0)
        self.assertAlmostEqual(data.detector[1].distance, 4145.02)
        self.assertTrue(
            data.process[0].name == "Mantid generated CanSAS1D XML")
        self.assertTrue(data.meta_data["xmlpreprocess"] is not None)

    def _check_data_1_1(self, data):
        spectrum = data.trans_spectrum[0]
        self.assertTrue(len(spectrum.wavelength) == 138)

    def test_cansas_xml(self):
        self.xml_reader.set_xml_file(self.isis_1_1)
        self.xml_reader.set_schema(self.schema_1_1)
        self.xml_reader.set_processing_instructions()
        self.assertTrue(self.xml_reader.validate_xml())
        dataloader = self.loader.load(self.isis_1_1)
        cansasreader = self.cansas_reader.read(self.isis_1_1)
        for i in range(len(dataloader)):
            self._check_data(dataloader[i])
            self._check_data_1_1(dataloader[i])
            self._check_data(cansasreader[i])
            self._check_data_1_1(cansasreader[i])
            self.loader.save(self.write_1_1_filename, dataloader[i], None)
            reader2 = Loader()
            self.assertTrue(os.path.isfile(self.write_1_1_filename))
            return_data = reader2.load(self.write_1_1_filename)
            written_data = return_data[0]
            self._check_data(written_data)
        if os.path.isfile(self.write_1_1_filename):
            os.remove(self.write_1_1_filename)

    def test_double_trans_spectra(self):
        self.xml_reader.set_xml_file(self.cansas1d)
        self.xml_reader.set_schema(self.schema_1_0)
        self.assertTrue(self.xml_reader.validate_xml())
        data = self.loader.load(self.isis_1_1_doubletrans)
        for item in data:
            self._check_data(item)

    def test_entry_name_recurse(self):
        test_values = [1, 2, 3, 4, 5, 6]
        base_key = "key"
        d = {}
        for value in test_values:
            new_key = self.get_number_of_entries(d, base_key, i=0)
            d[new_key] = value
        self.assertTrue(len(d) == 6)

    def test_load_cansas_file(self):
        reader1 = XMLreader(self.xml_valid, self.schema_1_0)
        self.assertTrue(reader1.validate_xml())
        reader2 = XMLreader(self.xml_invalid, self.schema_1_0)
        self.assertFalse(reader2.validate_xml())
        reader3 = XMLreader(self.xml_valid, self.schema_1_1)
        self.assertFalse(reader3.validate_xml())
        reader4 = XMLreader(self.xml_invalid, self.schema_1_1)
        self.assertFalse(reader4.validate_xml())
        reader5 = XMLreader(self.isis_1_0, self.schema_1_0)
        self.assertTrue(reader5.validate_xml())
        reader6 = XMLreader(self.isis_1_1, self.schema_1_1)
        self.assertTrue(reader6.validate_xml())
        reader7 = XMLreader(self.isis_1_1, self.schema_1_0)
        self.assertFalse(reader7.validate_xml())

    def test_invalid_cansas(self):
        list = self.loader.load(self.cansas1d_notitle)
        data = list[0]
        self.assertTrue(data.x.size == 2)
        self.assertTrue(len(data.meta_data) == 2)
        self.assertTrue(len(data.errors) == 1)
        self.assertTrue(data.detector[0].distance_unit == "mm")
        self.assertTrue(data.detector[0].name == "fictional hybrid")
        self.assertTrue(data.detector[0].distance == 4150)

    def test_old_cansas_files(self):
        self.xml_reader.set_xml_file(self.cansas1d)
        self.xml_reader.set_schema(self.schema_1_0)
        self.assertTrue(self.xml_reader.validate_xml())
        self.loader.load(self.cansas1d)
        reader2 = XMLreader(self.cansas1d_units, self.schema_1_0)
        self.assertTrue(reader2.validate_xml())
        reader3 = XMLreader(self.cansas1d_badunits, self.schema_1_0)
        self.assertTrue(reader3.validate_xml())
        reader4 = XMLreader(self.cansas1d_slit, self.schema_1_0)
        self.assertTrue(reader4.validate_xml())

    def test_save_cansas_v1_0(self):
        xmlreader = XMLreader(self.isis_1_0, self.schema_1_0)
        self.assertTrue(xmlreader.validate_xml())
        dataloader = self.loader.load(self.isis_1_0)
        cansasreader = self.cansas_reader.read(self.isis_1_0)
        for i in range(len(dataloader)):
            self._check_data(dataloader[i])
            self._check_data(cansasreader[i])
            self.loader.save(self.write_1_0_filename, dataloader[i], None)
            reader2 = Reader()
            self.assertTrue(os.path.isfile(self.write_1_0_filename))
            return_data = reader2.read(self.write_1_0_filename)
            written_data = return_data[0]
            xmlreader = XMLreader(self.write_1_0_filename, self.schema_1_0)
            self.assertTrue(xmlreader.validate_xml())
            self._check_data(written_data)
        if os.path.isfile(self.write_1_0_filename):
            os.remove(self.write_1_0_filename)

    def test_processing_instructions(self):
        self.xml_reader.set_xml_file(self.isis_1_1)
        self.xml_reader.set_schema(self.schema_1_1)
        if self.xml_reader.validate_xml():
            # find the processing instructions and make into a dictionary
            dic = self.get_processing_instructions(self.xml_reader)
            self.assertEqual(
                dic,
                {'xml-stylesheet': 'type="text/xsl" href="cansas1d.xsl" '})

            xml = "<test><a><b><c></c></b></a></test>"
            xmldoc = minidom.parseString(xml)

            # take the processing instructions and put them back in
            xmldoc = self.set_processing_instructions(xmldoc, dic)
            xmldoc.toprettyxml()

    def set_processing_instructions(self, minidom_object, dic):
        xmlroot = minidom_object.firstChild
        for item in dic:
            pi = minidom_object.createProcessingInstruction(item, dic[item])
            minidom_object.insertBefore(pi, xmlroot)
        return minidom_object

    def get_processing_instructions(self, xml_reader_object):
        dict = {}
        pi = xml_reader_object.xmlroot.getprevious()
        i = 0
        while pi is not None:
            attr = {}
            pi_name = ""
            pi_string = decode(etree.tostring(pi))
            if isinstance(pi_string, str):
                pi_string = pi_string.replace("<?", "").replace("?>", "")
                split = pi_string.split(" ", 1)
                pi_name = split[0]
                attr = split[1]
            dict[pi_name] = attr
            pi = pi.getprevious()
        return dict

    def test_generic_loader(self):
        # the generic loader should work as well
        data = self.loader.load(find("cansas1d.xml"))
        self.assertEqual(len(data), 1)
        self.assertEqual(data[0].meta_data['loader'], "CanSAS XML 1D")

    def test_cansas_checkdata(self):
        self.data_list = self.loader.load(find("cansas1d.xml"))
        self.data = self.data_list[0]
        self.assertEqual(self.data.filename, "cansas1d.xml")
        self._checkdata()

    def _checkdata(self):
        """
            Check the data content to see whether
            it matches the specific file we loaded.
            Check the units too to see whether the
            Data1D defaults changed. Otherwise the
            tests won't pass
        """
        self.assertEqual(len(self.data_list), 1)
        self.assertEqual(self.data.run[0], "1234")
        self.assertEqual(self.data.meta_data['loader'], "CanSAS XML 1D")

        # Data
        self.assertEqual(len(self.data.x), 2)
        self.assertEqual(self.data.x_unit, 'A^{-1}')
        self.assertEqual(self.data.y_unit, 'cm^{-1}')
        self.assertAlmostEqual(self.data.x[0], 0.02, 6)
        self.assertAlmostEqual(self.data.y[0], 1000, 6)
        self.assertAlmostEqual(self.data.dx[0], 0.01, 6)
        self.assertAlmostEqual(self.data.dy[0], 3, 6)
        self.assertAlmostEqual(self.data.x[1], 0.03, 6)
        self.assertAlmostEqual(self.data.y[1], 1001.0)
        self.assertAlmostEqual(self.data.dx[1], 0.02, 6)
        self.assertAlmostEqual(self.data.dy[1], 4, 6)
        self.assertEqual(self.data.run_name['1234'], 'run name')
        self.assertEqual(self.data.title, "Test title")

        # Sample info
        self.assertEqual(self.data.sample.ID, "SI600-new-long")
        self.assertEqual(self.data.sample.name, "my sample")
        self.assertEqual(self.data.sample.thickness_unit, 'mm')
        self.assertAlmostEqual(self.data.sample.thickness, 1.03)

        self.assertAlmostEqual(self.data.sample.transmission, 0.327)

        self.assertEqual(self.data.sample.temperature_unit, 'C')
        self.assertEqual(self.data.sample.temperature, 0)

        self.assertEqual(self.data.sample.position_unit, 'mm')
        self.assertEqual(self.data.sample.position.x, 10)
        self.assertEqual(self.data.sample.position.y, 0)

        self.assertEqual(self.data.sample.orientation_unit, 'degree')
        self.assertAlmostEqual(self.data.sample.orientation.x, 22.5, 6)
        self.assertAlmostEqual(self.data.sample.orientation.y, 0.02, 6)

        self.assertEqual(
            self.data.sample.details[0],
            "http://chemtools.chem.soton.ac.uk/projects/blog/blogs.php/bit_id/2720"
        )
        self.assertEqual(self.data.sample.details[1], "Some text here")

        # Instrument info
        self.assertEqual(self.data.instrument, "canSAS instrument")

        # Source
        self.assertEqual(self.data.source.radiation, "neutron")

        self.assertEqual(self.data.source.beam_size_unit, "mm")
        self.assertEqual(self.data.source.beam_size_name, "bm")
        self.assertEqual(self.data.source.beam_size.x, 12)
        self.assertEqual(self.data.source.beam_size.y, 13)

        self.assertEqual(self.data.source.beam_shape, "disc")

        self.assertEqual(self.data.source.wavelength_unit, "A")
        self.assertEqual(self.data.source.wavelength, 6)

        self.assertEqual(self.data.source.wavelength_max_unit, "nm")
        self.assertAlmostEqual(self.data.source.wavelength_max, 1.0)
        self.assertEqual(self.data.source.wavelength_min_unit, "nm")
        self.assertAlmostEqual(self.data.source.wavelength_min, 0.22)
        self.assertEqual(self.data.source.wavelength_spread_unit, "percent")
        self.assertEqual(self.data.source.wavelength_spread, 14.3)

        # Collimation
        _found1 = False
        _found2 = False
        self.assertEqual(self.data.collimation[0].length, 123.)
        self.assertEqual(self.data.collimation[0].name, 'test coll name')

        for item in self.data.collimation[0].aperture:
            self.assertEqual(item.size_unit, 'mm')
            self.assertEqual(item.distance_unit, 'mm')

            if item.size.x == 50 \
                    and item.distance == 11000.0 \
                    and item.name == 'source' \
                    and item.type == 'radius':
                _found1 = True
            elif item.size.x == 1.0 \
                    and item.name == 'sample' \
                    and item.type == 'radius':
                _found2 = True

        if not _found1 or not _found2:
            raise RuntimeError("Could not find all data %s %s" %
                               (_found1, _found2))

        # Detector
        self.assertEqual(self.data.detector[0].name, "fictional hybrid")
        self.assertEqual(self.data.detector[0].distance_unit, "mm")
        self.assertEqual(self.data.detector[0].distance, 4150)

        self.assertEqual(self.data.detector[0].orientation_unit, "degree")
        self.assertAlmostEqual(self.data.detector[0].orientation.x, 1.0, 6)
        self.assertEqual(self.data.detector[0].orientation.y, 0.0)
        self.assertEqual(self.data.detector[0].orientation.z, 0.0)

        self.assertEqual(self.data.detector[0].offset_unit, "m")
        self.assertEqual(self.data.detector[0].offset.x, .001)
        self.assertEqual(self.data.detector[0].offset.y, .002)
        self.assertEqual(self.data.detector[0].offset.z, None)

        self.assertEqual(self.data.detector[0].beam_center_unit, "mm")
        self.assertEqual(self.data.detector[0].beam_center.x, 322.64)
        self.assertEqual(self.data.detector[0].beam_center.y, 327.68)
        self.assertEqual(self.data.detector[0].beam_center.z, None)

        self.assertEqual(self.data.detector[0].pixel_size_unit, "mm")
        self.assertEqual(self.data.detector[0].pixel_size.x, 5)
        self.assertEqual(self.data.detector[0].pixel_size.y, 5)
        self.assertEqual(self.data.detector[0].pixel_size.z, None)

        # Process
        _found_term1 = False
        _found_term2 = False
        for item in self.data.process:
            self.assertTrue(item.name in ['NCNR-IGOR', 'spol'])
            self.assertTrue(
                item.date in ['04-Sep-2007 18:35:02', '03-SEP-2006 11:42:47'])
            for t in item.term:
                if (t['name'] == "ABS:DSTAND" and t['unit'] == 'mm'
                        and float(t['value']) == 1.0):
                    _found_term2 = True
                elif (t['name'] == "radialstep" and t['unit'] == 'mm'
                      and float(t['value']) == 10.0):
                    _found_term1 = True

        if not _found_term1 or not _found_term2:
            raise RuntimeError("Could not find all process terms %s %s" %
                               (_found_term1, _found_term2))

    def test_writer(self):
        filename = "write_test.xml"
        data_list = self.loader.load(self.cansas1d)
        data = data_list[0]
        self.cansas_reader.write(self.write_filename, data)
        self.data_list = self.loader.load(self.write_filename)
        self.data = self.data_list[0]
        self.assertEqual(len(self.data_list), 1)
        self.assertEqual(len(self.data_list), len(self.data_list))
        self.assertEqual(self.data.filename, filename)
        self._checkdata()
        if os.path.isfile(self.write_filename):
            os.remove(self.write_filename)

    def test_units(self):
        """
            Check units.
            Note that not all units are available.
        """
        filename = "cansas1d_units.xml"
        self.data_list = self.cansas_reader.read(find(filename))
        self.data = self.data_list[0]
        self.assertEqual(len(self.data_list), 1)
        self.assertEqual(self.data.filename, filename)
        self._checkdata()

    def test_badunits(self):
        """
            Check units.
            Note that not all units are available.
        """
        filename = "cansas1d_badunits.xml"
        self.data_list = self.cansas_reader.read(find(filename))
        self.data = self.data_list[0]
        self.assertEqual(len(self.data_list), 1)
        self.assertEqual(self.data.filename, filename)
        # The followed should not have been loaded
        self.assertAlmostEqual(self.data.sample.thickness, 0.00103)
        # This one should
        self.assertAlmostEqual(self.data.sample.transmission, 0.327)

        self.assertEqual(self.data.meta_data['loader'], "CanSAS XML 1D")
        self.assertEqual(len(self.data.errors), 0)

    def test_slits(self):
        """
            Check slit data
        """
        filename = "cansas1d_slit.xml"
        self.data_list = self.cansas_reader.read(find(filename))
        self.data = self.data_list[0]
        self.assertEqual(len(self.data_list), 1)
        self.assertEqual(self.data.filename, filename)
        self.assertEqual(self.data.run[0], "1234")

        # Data
        self.assertEqual(len(self.data.x), 2)
        self.assertEqual(self.data.x_unit, 'A^{-1}')
        self.assertEqual(self.data.y_unit, 'cm^{-1}')
        self.assertEqual(self.data.x[0], 0.02)
        self.assertEqual(self.data.y[0], 1000)
        self.assertEqual(self.data.dxl[0], 0.005)
        self.assertEqual(self.data.dxw[0], 0.001)
        self.assertEqual(self.data.dy[0], 3)
        self.assertEqual(self.data.x[1], 0.03)
        self.assertAlmostEqual(self.data.y[1], 1001.0)
        self.assertEqual(self.data.dxl[1], 0.005)
        self.assertEqual(self.data.dxw[1], 0.001)
        self.assertEqual(self.data.dy[1], 4)
        self.assertEqual(self.data.run_name['1234'], 'run name')
        self.assertEqual(self.data.title, "Test title")