--- a
+++ b/tests/utils/test_examples.py
@@ -0,0 +1,50 @@
+from edsnlp.utils.examples import find_matches, parse_example, parse_match
+
+example = (
+    "Le <ent int_value=1 float_value=0.3>patient</ent> "
+    "n'est pas <ent polarity_=NEG negation=true>malade</ent>."
+)
+
+
+def test_find_matches():
+    matches = find_matches(example=example)
+
+    assert len(matches) == 2
+
+    match1, match2 = matches
+
+    assert match1.group() == "<ent int_value=1 float_value=0.3>patient</ent>"
+    assert match2.group() == "<ent polarity_=NEG negation=true>malade</ent>"
+
+
+def test_parse_match():
+    matches = find_matches(example=example)
+    match = parse_match(matches[0])
+
+    assert match.text == "patient"
+    assert match.modifiers == "int_value=1 float_value=0.3"
+
+
+def test_parse_example():
+    text, entities = parse_example(example=example)
+
+    assert text == "Le patient n'est pas malade."
+
+    entity1, entity2 = entities
+
+    assert text[entity1.start_char : entity1.end_char] == "patient"
+    assert text[entity2.start_char : entity2.end_char] == "malade"
+
+    m1, m2, m3, m4 = entity1.modifiers + entity2.modifiers
+
+    assert m1.key == "int_value"
+    assert m1.value == 1
+
+    assert m2.key == "float_value"
+    assert m2.value == 0.3
+
+    assert m3.key == "polarity_"
+    assert m3.value == "NEG"
+
+    assert m4.key == "negation"
+    assert m4.value