diff --git a/tests/test_quantifier.py b/tests/test_quantifier.py
index 2b9e953..a6909b8 100644
--- a/tests/test_quantifier.py
+++ b/tests/test_quantifier.py
@@ -57,3 +57,87 @@ def test_exact():
         (False, True),
         (False, True),
     ]
+
+
+def test_less():
+    from clintest.quantifier import Less
+    quantifier = Less(2)
+
+    assert quantifier.outcome().as_tuple() == (True, False)
+
+    input = 4 * [False, True]
+    output = [quantifier.consume(value).as_tuple() for value in input]
+
+    assert output == [
+        (True, False),
+        (True, False),
+        (True, False),
+        (False, True),
+        (False, True),
+        (False, True),
+        (False, True),
+        (False, True),
+    ]
+
+
+def test_less_equal():
+    from clintest.quantifier import LessEqual
+    quantifier = LessEqual(2)
+
+    assert quantifier.outcome().as_tuple() == (True, False)
+
+    input = 4 * [False, True]
+    output = [quantifier.consume(value).as_tuple() for value in input]
+
+    assert output == [
+        (True, False),
+        (True, False),
+        (True, False),
+        (True, False),
+        (True, False),
+        (False, True),
+        (False, True),
+        (False, True),
+    ]
+
+
+def test_greater():
+    from clintest.quantifier import Greater
+    quantifier = Greater(2)
+
+    assert quantifier.outcome().as_tuple() == (False, False)
+
+    input = 4 * [False, True]
+    output = [quantifier.consume(value).as_tuple() for value in input]
+
+    assert output == [
+        (False, False),
+        (False, False),
+        (False, False),
+        (False, False),
+        (False, False),
+        (True, True),
+        (True, True),
+        (True, True),
+    ]
+
+
+def test_greater_equal():
+    from clintest.quantifier import GreaterEqual
+    quantifier = GreaterEqual(2)
+
+    assert quantifier.outcome().as_tuple() == (False, False)
+
+    input = 4 * [False, True]
+    output = [quantifier.consume(value).as_tuple() for value in input]
+
+    assert output == [
+        (False, False),
+        (False, False),
+        (False, False),
+        (True, True),
+        (True, True),
+        (True, True),
+        (True, True),
+        (True, True),
+    ]