Test pyld util

test/hermes_test/model/types/test_pyld_util.py

@@ -1,5 +1,14 @@
+# SPDX-FileCopyrightText: 2025 German Aerospace Center (DLR)
+#
+# SPDX-License-Identifier: Apache-2.0
+
+# SPDX-FileContributor: Michael Meinel
+
 import pytest
 
+from unittest import mock
+
+from pyld import jsonld
 from hermes.model.types import pyld_util
 
 
@@ -16,3 +25,60 @@ def test_mock_document_compact(ld_proc, mock_document):
 def test_mock_document_expanded(ld_proc, mock_document):
     expanded_document = ld_proc.expand(mock_document.compact(), {})
     assert expanded_document == mock_document.expanded()
+
+
+def test_initial_context(ld_proc, httpserver, mock_document):
+    with pytest.raises(jsonld.JsonLdError):
+        active_ctx = ld_proc.initial_ctx(
+            [{"s": "www.spam.de"}],
+            {"documentLoader": pyld_util.bundled_loader}
+        )
+    url = httpserver.url_for("/")
+    httpserver.expect_request("/").respond_with_json({"@context": mock_document.vocabulary(url)})
+    active_ctx = ld_proc.initial_ctx(
+        [url],
+        {"documentLoader": pyld_util.bundled_loader}
+    )
+    assert "spam" in active_ctx["mappings"]
+    assert active_ctx["mappings"]["spam"]["@id"] == url + "spam"
+    assert active_ctx["mappings"]["ham"]["@id"] == url + "ham"
+    assert active_ctx["mappings"]["use_until"]["@id"] == url + "use_until"
+    assert active_ctx["mappings"]["Egg"]["@id"] == url + "Egg"
+    assert active_ctx["processingMode"] == "json-ld-1.1"
+
+
+def test_expand_iri(ld_proc, mock_context):
+    active_ctx = {'processingMode': 'json-ld-1.1',
+                  'mappings': mock_context}
+    assert ld_proc.expand_iri(active_ctx, "spam") == "http://spam.eggs/" + "spam"
+
+
+def test_compact_iri(ld_proc, mock_context):
+    active_ctx = {'mappings': {'spam': {'reverse': False, 'protected': False, '_prefix': False,
+                                        '_term_has_colon': False, '@id': 'http://spam.eggs/spam'},
+                               'ham': {'reverse': False, 'protected': False, '_prefix': False,
+                                       '_term_has_colon': False, '@id': 'http://spam.eggs/ham', '@type': '@id'},
+                               },
+                  'processingMode': 'json-ld-1.1', '_uuid': 'c641b9db-b0e8-11f0-bc68-9cfce89fd5b3'}
+
+    assert ld_proc.compact_iri(active_ctx, "http://spam.eggs/spam") == "spam"
+    assert ld_proc.compact_iri(active_ctx, "http://spam.eggs/bacon") == "http://spam.eggs/bacon"
+
+
+def test_register_typemap():
+    len_typemap = len(pyld_util.JsonLdProcessor._type_map)
+    pyld_util.JsonLdProcessor.register_typemap("function", **dict(spam="hallo"))
+    assert len(pyld_util.JsonLdProcessor._type_map) == len_typemap + 1
+    assert pyld_util.JsonLdProcessor._type_map["spam"] == [("function", "hallo")]
+
+
+def test_apply_typemap():
+    pyld_util.JsonLdProcessor._type_map["spam"] = [(lambda c: isinstance(c, list), lambda c, **_: c[0]+"eggs")]
+    ld_value, ld_output = pyld_util.JsonLdProcessor.apply_typemap(["ham"], "spam")
+    assert ld_output == "spam"
+    assert ld_value == "hameggs"
+    ld_value, ld_output = pyld_util.JsonLdProcessor.apply_typemap(["eggs", "ham"], "spam")
+    assert ld_output == "spam"
+    assert ld_value == "eggseggs"
+    ld_value, ld_output = pyld_util.JsonLdProcessor.apply_typemap("ham", "spam")
+    assert ld_value == "ham"