Esempio n. 1
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    def setUp(self):
        """Create a working document and a document for import.
        
        Load a sample schema and import it.

        """
        self.work = Ontology()
        self.work.outputformat = 'n3'
        self.work.imp(uri="data/SystemConfiguration.owl", prefix="sc")
Esempio n. 2
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class DataDocumentCreation(TestCase):
    """These tests are related to basic document creation.
    
    This will test importing other schema documents and creation of individuals
    in a blank document.
    
    See methods in this class for details.
    
    """

    #------------------------------------------------------------------ Fixture
    def setUp(self):
        """Create a working document and a document to use for import."""
        self.work = Ontology()
        self.work.outputformat = 'n3'

    def tearDown(self):
        """Reset working document and import document."""
        self.work = None

    #------------------------------------------------------- Success test cases
    def test_blankdocument_output(self):
        """Test just the basic creation of a blank document. 
        
        Compares with expected n3 output.
        
        """
        self.assertEqual(
            self.work.out(), """
@prefix owl: <http://www.w3.org/2002/07/owl#>.
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>.

 <#> a owl:Ontology. """,
            "Blank document n3 output does not look like we expect it to.")
Esempio n. 3
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class OutputDocument(TestCase):
    """Tests related to outputting documents."""

    #------------------------------------------------------------------ Fixture
    def setUp(self):
        """Create a working document."""
        self.work = Ontology()
        self.work.outputformat = 'n3'

    def tearDown(self):
        """Reset working document."""
        self.work = None

    #------------------------------------------------------- Success Test Cases
    def test_out_versus_str(self):
        """Test to make sure the __str__ output is the same as the class.out()
        output.
        
        """
        self.assertEqual(
            str(self.work), self.work.out(),
            "The output we got from __str__ is not the same as the output "
            "from the out() function.")

    #------------------------------------------------------- Failure test cases
    def test_invalid_outputformat(self):
        """Test to make sure we pick up on invalid output formats."""
        def setout(fmt):
            """Wrapper around property. Not sure of a nicer way to do this."""
            self.work.outputformat = fmt

        self.assertRaises(ValidationException, setout, 'asdf')
Esempio n. 4
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    def setUp(self):
        """Creating a working and import document.
        
        Load and import a sample schema, and initialise some individuals.

        """
        self.work = Ontology()
        self.work.outputformat = 'n3'
        self.work.imp(uri="data/SystemConfiguration.owl", prefix="sc")

        self.host = self.work.ind.new(rdfid="myhost",
                                      cls=self.work.cls.get(rdfid="Host"))

        self.kernel = self.work.ind.new(rdfid="Linux-2-6-22-9-91-fc7",
                                        cls=self.work.cls.get(rdfid="Kernel"))

        self.cpuarch = self.work.ind.new(
            rdfid="i686", cls=self.work.cls.get(rdfid="CpuArch"))
Esempio n. 5
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    def setUp(self):
        """Create a working document and a document for import.
        
        Load a sample schema and import it.

        """
        self.work = Ontology()
        self.work.outputformat = 'n3'
        self.work.imp(uri="data/SystemConfiguration.owl", prefix="sc")
Esempio n. 6
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class PublicUriLoad(TestCase):
    """Test using a known mismatched public URI/real location mapping with the
    Document load function.
    
    """
    
    #------------------------------------------------------------------ Fixture
    def setUp(self):
        """Creating a working document."""
        self.work = Ontology()
        self.work.outputformat = 'n3'

    def tearDown(self):
        """Reset a working document."""
        self.work = None

    #------------------------------------------------------- Success test cases
    def test_foaf(self):
        """Test loading the FOAF public id into a document."""
        self.work.load("http://xmlns.com/foaf/0.1/")
        pubcls = self.work.cls.get("Public")
        self.assertEqual(str(pubcls.nsuri), 
            "http://xmlns.com/foaf/0.1/#Public")
Esempio n. 7
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class PublicUriLoad(TestCase):
    """Test using a known mismatched public URI/real location mapping with the
    Document load function.
    
    """

    #------------------------------------------------------------------ Fixture
    def setUp(self):
        """Creating a working document."""
        self.work = Ontology()
        self.work.outputformat = 'n3'

    def tearDown(self):
        """Reset a working document."""
        self.work = None

    #------------------------------------------------------- Success test cases
    def test_foaf(self):
        """Test loading the FOAF public id into a document."""
        self.work.load("http://xmlns.com/foaf/0.1/")
        pubcls = self.work.cls.get("Public")
        self.assertEqual(str(pubcls.nsuri),
                         "http://xmlns.com/foaf/0.1/#Public")
Esempio n. 8
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    def setUp(self):
        """Creating a working and import document.
        
        Load and import a sample schema, and initialise some individuals.

        """
        self.work = Ontology()
        self.work.outputformat = 'n3'
        self.work.imp(uri="data/SystemConfiguration.owl", prefix="sc")
        
        self.host = self.work.ind.new(rdfid="myhost", 
            cls=self.work.cls.get(rdfid="Host"))
        
        self.kernel = self.work.ind.new(rdfid="Linux-2-6-22-9-91-fc7", 
            cls=self.work.cls.get(rdfid="Kernel"))
        
        self.cpuarch = self.work.ind.new(rdfid="i686", 
            cls=self.work.cls.get(rdfid="CpuArch"))
Esempio n. 9
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class IndividualCreation(TestCase):
    """These tests are designed to test the creation of individuals in a 
    document.
    
    """
    
    #------------------------------------------------------------------ Fixture
    def setUp(self):
        """Create a working document and a document for import.
        
        Load a sample schema and import it.

        """
        self.work = Ontology()
        self.work.outputformat = 'n3'
        self.work.imp(uri="data/SystemConfiguration.owl", prefix="sc")

    def tearDown(self):
        """Reset working document."""
        self.work = None

    #------------------------------------------------------- Success test cases
    def test_add_individual(self):
        """Add a new individual once and ensure the result matches what we 
        expect.
        
        """
        self.work.ind.new(rdfid="asdf", cls=self.work.cls.get(rdfid="Host"))
        # Note - there is a space at the end of the "owl:imports" line.
        self.assertEqual(self.work.out(), """
@prefix : <#>.
@prefix owl: <http://www.w3.org/2002/07/owl#>.
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>.
@prefix sc: <http://www.organictechnology.net/ontologies/SystemConfiguration.owl#>.

 <#> a owl:Ontology;
     owl:imports <http://www.organictechnology.net/ontologies/SystemConfiguration.owl>. 

 :asdf a sc:Host. """)

    #------------------------------------------------------- Failure test cases
    def test_add_same_ind_twice(self):
        """Add the same individual multiple times and see if the document is 
        still correct.
        
        We should see a DuplicateIdException.
        
        """
        self.work.ind.new(rdfid="asdf", cls=self.work.cls.get(rdfid="Host"))
        self.assertRaises(DuplicateIdException, self.work.ind.new, 
            rdfid="asdf", cls=self.work.cls.get(rdfid="Host"))
        self.assertEqual(self.work.out(), """
@prefix : <#>.
@prefix owl: <http://www.w3.org/2002/07/owl#>.
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>.
@prefix sc: <http://www.organictechnology.net/ontologies/SystemConfiguration.owl#>.

 <#> a owl:Ontology;
     owl:imports <http://www.organictechnology.net/ontologies/SystemConfiguration.owl>. 

 :asdf a sc:Host. """)
Esempio n. 10
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 def setUp(self):
     """Creating a working document."""
     self.work = Ontology()
     self.work.outputformat = 'n3'
Esempio n. 11
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 def setUp(self):
     """Creating working document and document for importing."""
     self.work = Ontology()
     self.work.outputformat = 'n3'
Esempio n. 12
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 def setUp(self):
     """Creating a working document."""
     self.work = Ontology()
     self.work.outputformat = 'n3'
Esempio n. 13
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class LocalImports(TestCase):
    """This will test importing other schema documents and creation of 
    individuals in a blank document.
    
    """
    
    #------------------------------------------------------------------ Fixture
    def setUp(self):
        """Creating working document and document for importing."""
        self.work = Ontology()
        self.work.outputformat = 'n3'

    def tearDown(self):
        """Reset working document and import document."""
        self.work = None

    #------------------------------------------------------- Success test cases

    def test_multiple_imports(self):
        """Import multiple schemas.
        
        Compares it with the expected n3 output.
        
        """
        self.work.imp(uri="http://xmlns.com/foaf/0.1/", prefix="foaf")
        self.work.imp(uri="http://purl.org/dc/elements/1.1/", prefix="dc")
        self.assertEqual(self.work.out(), """
@prefix owl: <http://www.w3.org/2002/07/owl#>.
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>.

 <#> a owl:Ontology;
     owl:imports <http://purl.org/dc/elements/1.1/#>,
         <http://xmlns.com/foaf/0.1/#>. """)

    def test_single_import(self):
        """Using a blank document, import a schema from the local file system. 
        
        Compares it with the expected n3 output.
        
        """
        self.work.imp(uri="http://xmlns.com/foaf/0.1/", prefix="foaf")
        self.assertEqual(self.work.out(), """
@prefix owl: <http://www.w3.org/2002/07/owl#>.
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>.

 <#> a owl:Ontology;
     owl:imports <http://xmlns.com/foaf/0.1/>. """)
        
    #------------------------------------------------------- Failure test cases
        
    def test_duplicate_import(self):
        """Using a blank document, import a schema from the local file system.
        
        Compares it with the expected n3 output.
        
        """
        self.work.imp(uri="http://xmlns.com/foaf/0.1/", prefix="foaf")
        self.assertRaises(DuplicateImportException, self.work.imp, 
            uri="http://xmlns.com/foaf/0.1/", prefix="sc")
        self.assertEqual(self.work.out(), """
@prefix owl: <http://www.w3.org/2002/07/owl#>.
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>.

 <#> a owl:Ontology;
     owl:imports <http://xmlns.com/foaf/0.1/>. """)
Esempio n. 14
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class LocalImports(TestCase):
    """This will test importing other schema documents and creation of 
    individuals in a blank document.
    
    """

    #------------------------------------------------------------------ Fixture
    def setUp(self):
        """Creating working document and document for importing."""
        self.work = Ontology()
        self.work.outputformat = 'n3'

    def tearDown(self):
        """Reset working document and import document."""
        self.work = None

    #------------------------------------------------------- Success test cases

    def test_multiple_imports(self):
        """Import multiple schemas.
        
        Compares it with the expected n3 output.
        
        """
        self.work.imp(uri="http://xmlns.com/foaf/0.1/", prefix="foaf")
        self.work.imp(uri="http://purl.org/dc/elements/1.1/", prefix="dc")
        self.assertEqual(
            self.work.out(), """
@prefix owl: <http://www.w3.org/2002/07/owl#>.
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>.

 <#> a owl:Ontology;
     owl:imports <http://purl.org/dc/elements/1.1/#>,
         <http://xmlns.com/foaf/0.1/#>. """)

    def test_single_import(self):
        """Using a blank document, import a schema from the local file system. 
        
        Compares it with the expected n3 output.
        
        """
        self.work.imp(uri="http://xmlns.com/foaf/0.1/", prefix="foaf")
        self.assertEqual(
            self.work.out(), """
@prefix owl: <http://www.w3.org/2002/07/owl#>.
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>.

 <#> a owl:Ontology;
     owl:imports <http://xmlns.com/foaf/0.1/>. """)

    #------------------------------------------------------- Failure test cases

    def test_duplicate_import(self):
        """Using a blank document, import a schema from the local file system.
        
        Compares it with the expected n3 output.
        
        """
        self.work.imp(uri="http://xmlns.com/foaf/0.1/", prefix="foaf")
        self.assertRaises(DuplicateImportException,
                          self.work.imp,
                          uri="http://xmlns.com/foaf/0.1/",
                          prefix="sc")
        self.assertEqual(
            self.work.out(), """
@prefix owl: <http://www.w3.org/2002/07/owl#>.
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>.

 <#> a owl:Ontology;
     owl:imports <http://xmlns.com/foaf/0.1/>. """)
Esempio n. 15
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 def setUp(self):
     """Creating working document and document for importing."""
     self.work = Ontology()
     self.work.outputformat = 'n3'
Esempio n. 16
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 def setUp(self):
     """Create a working document and a document to use for import."""
     self.work = Ontology()
     self.work.outputformat = 'n3'
Esempio n. 17
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class IndividualSlotManipulation(TestCase):
    """These tests are designed to test changes for Individuals on a slot 
    level.
    
    """

    #------------------------------------------------------------------ Fixture
    def setUp(self):
        """Creating a working and import document.
        
        Load and import a sample schema, and initialise some individuals.

        """
        self.work = Ontology()
        self.work.outputformat = 'n3'
        self.work.imp(uri="data/SystemConfiguration.owl", prefix="sc")

        self.host = self.work.ind.new(rdfid="myhost",
                                      cls=self.work.cls.get(rdfid="Host"))

        self.kernel = self.work.ind.new(rdfid="Linux-2-6-22-9-91-fc7",
                                        cls=self.work.cls.get(rdfid="Kernel"))

        self.cpuarch = self.work.ind.new(
            rdfid="i686", cls=self.work.cls.get(rdfid="CpuArch"))

    def tearDown(self):
        """Reset working and import documents and their individuals."""
        self.host = None
        self.kernel = None
        self.cpuarch = None
        self.work = None

    #------------------------------------------------------- Success test cases
    def test_set_slot(self):
        """Set a whole bunch of slots and test to see if the output is what we 
        expect.
        
        """
        self.cpuarch.set(self.work.prop.get('cpuarchName'), Literal("i686"))
        self.kernel.set(self.work.prop.get('kernelAbbrev'), Literal("Linux"))
        self.kernel.set(self.work.prop.get('kernelVersion'),
                        Literal("2.6.22.9-91.fc7"))
        self.kernel.set(self.work.prop.get('hasCpuArch'), self.cpuarch.nsuri)
        self.host.set(self.work.prop.get('hostName'), Literal("myhost"))
        self.host.set(self.work.prop.get('hasKernel'), self.kernel.nsuri)
        self.assertEqual(
            self.work.out(), """
@prefix : <#>.
@prefix owl: <http://www.w3.org/2002/07/owl#>.
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>.
@prefix sc: <http://www.organictechnology.net/ontologies/SystemConfiguration.owl#>.

 <#> a owl:Ontology;
     owl:imports <http://www.organictechnology.net/ontologies/SystemConfiguration.owl#>. 

 :myhost a sc:Host;
     sc:hasKernel :Linux-2-6-22-9-91-fc7;
     sc:hostName "myhost". 

 :Linux-2-6-22-9-91-fc7 a sc:Kernel;
     sc:hasCpuArch :i686;
     sc:kernelAbbrev "Linux";
     sc:kernelVersion "2.6.22.9-91.fc7". 

 :i686 a sc:CpuArch;
     sc:cpuarchName "i686". """)

    #------------------------------------------------------- Failure test cases
    def test_set_inv_prop_slot(self):
        """Attempt to set a slot for a property which doesn't belong to the 
        class in which the slot's individual belongs.
        
        """
        self.assertRaises(SchemaException, self.cpuarch.set,
                          self.work.prop.get('kernelAbbrev'), Literal("Linux"))

    def test_set_inv_prop_slot_union(self):
        """Attempt to set a slot for a property which doesn't belong to the 
        class in which the slot's individual belongs. 
        
        Specifically, test a property that uses unionOf for its domain setting.
        
        """
        self.assertRaises(SchemaException, self.cpuarch.set,
                          self.work.prop.get('hasKernel'), self.kernel.nsuri)
Esempio n. 18
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class IndividualCreation(TestCase):
    """These tests are designed to test the creation of individuals in a 
    document.
    
    """

    #------------------------------------------------------------------ Fixture
    def setUp(self):
        """Create a working document and a document for import.
        
        Load a sample schema and import it.

        """
        self.work = Ontology()
        self.work.outputformat = 'n3'
        self.work.imp(uri="data/SystemConfiguration.owl", prefix="sc")

    def tearDown(self):
        """Reset working document."""
        self.work = None

    #------------------------------------------------------- Success test cases
    def test_add_individual(self):
        """Add a new individual once and ensure the result matches what we 
        expect.
        
        """
        self.work.ind.new(rdfid="asdf", cls=self.work.cls.get(rdfid="Host"))
        # Note - there is a space at the end of the "owl:imports" line.
        self.assertEqual(
            self.work.out(), """
@prefix : <#>.
@prefix owl: <http://www.w3.org/2002/07/owl#>.
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>.
@prefix sc: <http://www.organictechnology.net/ontologies/SystemConfiguration.owl#>.

 <#> a owl:Ontology;
     owl:imports <http://www.organictechnology.net/ontologies/SystemConfiguration.owl>. 

 :asdf a sc:Host. """)

    #------------------------------------------------------- Failure test cases
    def test_add_same_ind_twice(self):
        """Add the same individual multiple times and see if the document is 
        still correct.
        
        We should see a DuplicateIdException.
        
        """
        self.work.ind.new(rdfid="asdf", cls=self.work.cls.get(rdfid="Host"))
        self.assertRaises(DuplicateIdException,
                          self.work.ind.new,
                          rdfid="asdf",
                          cls=self.work.cls.get(rdfid="Host"))
        self.assertEqual(
            self.work.out(), """
@prefix : <#>.
@prefix owl: <http://www.w3.org/2002/07/owl#>.
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>.
@prefix sc: <http://www.organictechnology.net/ontologies/SystemConfiguration.owl#>.

 <#> a owl:Ontology;
     owl:imports <http://www.organictechnology.net/ontologies/SystemConfiguration.owl>. 

 :asdf a sc:Host. """)
Esempio n. 19
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class IndividualSlotManipulation(TestCase):
    """These tests are designed to test changes for Individuals on a slot 
    level.
    
    """
    
    #------------------------------------------------------------------ Fixture
    def setUp(self):
        """Creating a working and import document.
        
        Load and import a sample schema, and initialise some individuals.

        """
        self.work = Ontology()
        self.work.outputformat = 'n3'
        self.work.imp(uri="data/SystemConfiguration.owl", prefix="sc")
        
        self.host = self.work.ind.new(rdfid="myhost", 
            cls=self.work.cls.get(rdfid="Host"))
        
        self.kernel = self.work.ind.new(rdfid="Linux-2-6-22-9-91-fc7", 
            cls=self.work.cls.get(rdfid="Kernel"))
        
        self.cpuarch = self.work.ind.new(rdfid="i686", 
            cls=self.work.cls.get(rdfid="CpuArch"))

    def tearDown(self):
        """Reset working and import documents and their individuals."""
        self.host = None
        self.kernel = None
        self.cpuarch = None
        self.work = None

    #------------------------------------------------------- Success test cases
    def test_set_slot(self):
        """Set a whole bunch of slots and test to see if the output is what we 
        expect.
        
        """
        self.cpuarch.set(self.work.prop.get('cpuarchName'), Literal("i686"))
        self.kernel.set(self.work.prop.get('kernelAbbrev'), Literal("Linux"))
        self.kernel.set(self.work.prop.get('kernelVersion'), 
            Literal("2.6.22.9-91.fc7"))
        self.kernel.set(self.work.prop.get('hasCpuArch'), self.cpuarch.nsuri)
        self.host.set(self.work.prop.get('hostName'), Literal("myhost"))
        self.host.set(self.work.prop.get('hasKernel'), self.kernel.nsuri)
        self.assertEqual(self.work.out(), """
@prefix : <#>.
@prefix owl: <http://www.w3.org/2002/07/owl#>.
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>.
@prefix sc: <http://www.organictechnology.net/ontologies/SystemConfiguration.owl#>.

 <#> a owl:Ontology;
     owl:imports <http://www.organictechnology.net/ontologies/SystemConfiguration.owl#>. 

 :myhost a sc:Host;
     sc:hasKernel :Linux-2-6-22-9-91-fc7;
     sc:hostName "myhost". 

 :Linux-2-6-22-9-91-fc7 a sc:Kernel;
     sc:hasCpuArch :i686;
     sc:kernelAbbrev "Linux";
     sc:kernelVersion "2.6.22.9-91.fc7". 

 :i686 a sc:CpuArch;
     sc:cpuarchName "i686". """)

    #------------------------------------------------------- Failure test cases
    def test_set_inv_prop_slot(self):
        """Attempt to set a slot for a property which doesn't belong to the 
        class in which the slot's individual belongs.
        
        """
        self.assertRaises(SchemaException, self.cpuarch.set, 
            self.work.prop.get('kernelAbbrev'), Literal("Linux"))

    def test_set_inv_prop_slot_union(self):
        """Attempt to set a slot for a property which doesn't belong to the 
        class in which the slot's individual belongs. 
        
        Specifically, test a property that uses unionOf for its domain setting.
        
        """
        self.assertRaises(SchemaException, self.cpuarch.set, 
            self.work.prop.get('hasKernel'), self.kernel.nsuri)
Esempio n. 20
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class LoadDocument(TestCase):
    """Tests related to loading documents."""

    # ------------------------------------------------------------------ Fixture
    def setUp(self):
        """Create a working document."""
        self.work = Ontology()
        self.work.outputformat = "n3"

    def tearDown(self):
        """Reset working document."""
        self.work = None

    # ------------------------------------------------------- Success Test Cases
    def test_automatic_uriextractions(self):
        """Test if a locally loaded documents nsuri is set automatically.
        
        OWLSugar has the ability to extract a documents namespace automatically
        if you didn't explicitly define it when you tried to load it from a 
        local file. This will ensure this facility is working.
        
        """
        # List for the file to nsuri mappings.
        tests = [
            ("data/SystemConfiguration.owl", "http://www.organictechnology.net/ontologies" "/SystemConfiguration.owl#"),
            ("data/countries.owl", "http://www.bpiresearch.com/BPMO/2004/03/03/cdl/Countries#"),
            ("data/family.swrl.owl", "http://a.com/ontology#"),
            (
                "data/demoHierarchyVisualization.owl",
                "http://www.ea3888.univ-rennes1.fr/ontology/" "demoHierarchyVisualization.owl#",
            ),
            ("data/foaf-index.owl", "http://xmlns.com/foaf/0.1/#"),
            ("http://usefulinc.com/ns/doap#", "http://usefulinc.com/ns/doap#"),
        ]
        for uri, namespace in tests:
            self.work.load(uri)
            self.assertEqual(
                Namespace(namespace),
                self.work.nsuri,
                "When loading the file (%s) the URI we extracted from it is " "not what we expected.",
            )

    def test_loading_n3(self):
        """Test to see if we can load an n3 document."""
        filepath = "data/SystemConfiguration.n3"
        self.work.inputformat = "n3"
        self.work.outputformat = "n3"
        self.work.load(filepath)
        filestring = open(filepath).read(8192)
        ourstring = self.work.out()
        # The message will dump a diff so we can see any variance.
        self.assertEqual(
            filestring,
            ourstring + "\n",
            "Input file (%s) and parsed output does not match.\n"
            "Diff output is:\n\n%s"
            % (filepath, "\n".join(list(Differ().compare(filestring.split("\n"), ourstring.split("\n"))))),
        )

    # ------------------------------------------------------- Failure test cases

    def test_invalid_path(self):
        """Test invalid paths for loading. 
        
        This makes sure a ValidationException is raised that picks up that the
        path is not a valid file. It also tests to make sure the original file
        was not clobbered.
        
        """
        tests = ["src", "asdfasdf", "test"]  # Directory  # Invalid path  # Soft link (on linux anyway)
        for i in tests:
            self.assertRaises(ValidationException, self.work.load, i)
            self.assertEqual(
                self.work.out(),
                """
@prefix owl: <http://www.w3.org/2002/07/owl#>.
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>.

 <#> a owl:Ontology. """,
                "Invalid path (%s) and ValidationException raised has " "clobbered the original file contents." % i,
            )

    def test_load_invalid_with_xml(self):
        """Test to see if we get an exception when attempting to load a file
        that has invalid contents.
        
        Also check to make sure the existing contents are not clobbered.
        
        """
        self.work.inputformat = "xml"
        self.assertRaises(InvalidOwlParseException, self.work.load, "data/README.txt")
        self.assertEqual(
            self.work.out(),
            """
@prefix owl: <http://www.w3.org/2002/07/owl#>.
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>.

 <#> a owl:Ontology. """,
            "Invalid file contents and SAXParseException raised has " "clobbered the original file contents.",
        )

    def test_load_owlxml_with_n3(self):
        """Try and load an OWL/XML document when we are using 'n3' as an input
        format.
        
        """
        filepath = "data/SystemConfiguration.owl"
        self.work.inputformat = "n3"
        self.assertRaises(InvalidOwlParseException, self.work.load, filepath)
        self.assertEqual(
            self.work.out(),
            """
@prefix owl: <http://www.w3.org/2002/07/owl#>.
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>.

 <#> a owl:Ontology. """,
            "Invalid file contents and SAXParseException raised has " "clobbered the original file contents.",
        )

    def test_load_text_with_n3(self):
        """Try and load an OWL/XML document when we are using 'n3' as an input 
        format.
        
        """
        self.work.inputformat = "n3"
        self.assertRaises(InvalidOwlParseException, self.work.load, "data/README.txt")
        self.assertEqual(
            self.work.out(),
            """
@prefix owl: <http://www.w3.org/2002/07/owl#>.
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>.

 <#> a owl:Ontology. """,
            "Invalid file contents and SAXParseException raised has " "clobbered the original file contents.",
        )