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diff --git a/tests/mlia/test_core_data_analysis.py b/tests/mlia/test_core_data_analysis.py
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+++ b/tests/mlia/test_core_data_analysis.py
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+# SPDX-FileCopyrightText: Copyright 2022, Arm Limited and/or its affiliates.
+# SPDX-License-Identifier: Apache-2.0
+"""Tests for module data_analysis."""
+from dataclasses import dataclass
+
+from mlia.core.common import DataItem
+from mlia.core.data_analysis import Fact
+from mlia.core.data_analysis import FactExtractor
+
+
+def test_fact_extractor() -> None:
+    """Test fact extractor."""
+
+    @dataclass
+    class SampleFact(Fact):
+        """Sample fact."""
+
+        msg: str
+
+    class SampleExtractor(FactExtractor):
+        """Sample extractor."""
+
+        def analyze_data(self, data_item: DataItem) -> None:
+            self.add_fact(SampleFact(f"Fact for {data_item}"))
+
+    extractor = SampleExtractor()
+    extractor.analyze_data(42)
+    extractor.analyze_data("some data")
+
+    facts = extractor.get_analyzed_data()
+    assert facts == [SampleFact("Fact for 42"), SampleFact("Fact for some data")]