payed off testing technical debt + bug fixes + traces based evaluator

stl/test_params.py

@@ -0,0 +1,14 @@
+import stl
+
+import hypothesis.strategies as st
+from hypothesis import given
+
+
+@given(st.integers(), st.integers(), st.integers())
+def test_params1(a, b, c):
+    phi = stl.parse('G[a?, b?](x > c?)')
+    assert {x.name for x in phi.params} == {'a?', 'b?', 'c?'}
+
+    phi2 = phi.set_params({'a?': a, 'b?': b, 'c?': c})
+    assert phi2.params == set()
+    assert phi2 == stl.parse(f'G[{a}, {b}](x > {c})')