Add some missing tests

pyvo/dal/tests/test_tap.py

@@ -793,6 +793,118 @@ def test_get_udf(self, tapservice):
         assert func.form == "ivo_hasword(haystack TEXT, needle TEXT) -> INTEGER"
 
 
+def test_invalid_service_url_format():
+    service = TAPService('http://[invalid-url')
+
+    with pytest.raises(DALServiceError) as excinfo:
+        _ = service.capabilities
+
+    error_message = str(excinfo.value)
+    assert "Invalid service URL" in error_message
+    assert "Please provide a valid URL in the format 'http(s)://domain/path'" in error_message
+
+
+def test_timeout_error():
+    service = TAPService('http://example.com/tap')
+
+    with requests_mock.Mocker() as rm:
+        rm.register_uri(
+            'GET',
+            'http://example.com/tap/capabilities',
+            exc=requests.Timeout("Request timed out")
+        )
+        rm.register_uri(
+            'GET',
+            'http://example.com/capabilities',
+            exc=requests.Timeout("Request timed out")
+        )
+
+        with pytest.raises(DALServiceError) as excinfo:
+            _ = service.capabilities
+
+        error_message = str(excinfo.value)
+        assert "Request timed out" in error_message
+
+
+def test_generic_request_exception():
+    service = TAPService('http://example.com/tap')
+
+    with requests_mock.Mocker() as rm:
+        rm.register_uri(
+            'GET',
+            'http://example.com/tap/capabilities',
+            exc=requests.RequestException("Some request error")
+        )
+        rm.register_uri(
+            'GET',
+            'http://example.com/capabilities',
+            exc=requests.RequestException("Some request error")
+        )
+
+        with pytest.raises(DALServiceError) as excinfo:
+            _ = service.capabilities
+
+        error_message = str(excinfo.value)
+        assert "Some request error" in error_message
+
+
+def test_unexpected_exception():
+    service = TAPService('http://example.com/tap')
+
+    class CustomException(Exception):
+        pass
+
+    with requests_mock.Mocker() as rm:
+        rm.register_uri(
+            'GET',
+            'http://example.com/tap/capabilities',
+            exc=CustomException("Unexpected error occurred")
+        )
+        rm.register_uri(
+            'GET',
+            'http://example.com/capabilities',
+            exc=CustomException("Unexpected error occurred")
+        )
+
+        with pytest.raises(DALServiceError) as excinfo:
+            _ = service.capabilities
+
+        error_message = str(excinfo.value)
+        assert "Unexpected error: Unexpected error occurred" in error_message
+
+
+def test_tap_service_initialization_error():
+    with requests_mock.Mocker() as rm:
+        rm.register_uri(
+            'GET',
+            'http://example.com/tap/capabilities',
+            status_code=404
+        )
+        rm.register_uri(
+            'GET',
+            'http://example.com/capabilities',
+            status_code=404
+        )
+
+        service = TAPService('http://example.com/tap')
+        with pytest.raises(DALServiceError) as excinfo:
+            _ = service.capabilities
+
+        error_message = str(excinfo.value)
+        assert "Unable to access the capabilities endpoint at:" in error_message
+        assert "404" in error_message
+
+
+def test_tap_service_invalid_url_error():
+    service = TAPService('http://[invalid-url')
+    with pytest.raises(DALServiceError) as excinfo:
+        _ = service.capabilities
+
+    error_message = str(excinfo.value)
+    assert "Invalid service URL" in error_message
+    assert "Please provide a valid URL in the format 'http(s)://domain/path'" in error_message
+
+
 def test_endpoint_connection_errors():
     service = TAPService('http://example.com/tap')