add tests

python/tests/test_instruments.py

@@ -3047,6 +3047,13 @@ def test_portfolio_mixed_currencies(self) -> None:
         pf.gamma(solver=combined_solver)
 
 
+    def test_repr(self, curve) -> None:
+        irs1 = IRS(dt(2022, 1, 1), "6m", "Q", fixed_rate=1.0, curves=curve)
+        irs2 = IRS(dt(2022, 1, 1), "3m", "Q", fixed_rate=2.0, curves=curve)
+        pf = Portfolio([irs1, irs2])
+        expected = f"<rl.Portfolio at {hex(id(pf))}>"
+        assert pf.__repr__() == expected
+
 class TestFly:
     @pytest.mark.parametrize("mechanism", [False, True])
     def test_fly_npv(self, curve, mechanism) -> None:
@@ -4257,6 +4264,19 @@ def test_greeks_delta_direction(self, fxfo, notn, expected_grks, expected_ccy) -
         assert abs(result["gamma_eur_1%"] - expected_ccy[1]) < 1e-2
         assert abs(result["vega_usd"] - expected_ccy[2]) < 1e-2
 
+    def test_repr(self):
+        fxo = FXRiskReversal(
+            pair="eurusd",
+            expiry=dt(2023, 6, 16),
+            notional=20e6,
+            delivery_lag=2,
+            payment_lag=2,
+            calendar="tgt",
+            strike=[1.033, 1.101],
+        )
+        expected = f"<rl.FXRiskReversal at {hex(id(fxo))}>"
+        assert fxo.__repr__() == expected
+
 
 class TestFXStraddle:
     @pytest.mark.parametrize(
@@ -4382,6 +4402,19 @@ def test_greeks_delta_direction(self, fxfo, notn, expected_grks, expected_ccy) -
         assert abs(result["gamma_eur_1%"] - expected_ccy[1]) < 1e-2
         assert abs(result["vega_usd"] - expected_ccy[2]) < 1e-2
 
+    def test_repr(self):
+        fxo = FXStraddle(
+            pair="eurusd",
+            expiry=dt(2023, 6, 16),
+            notional=20e6,
+            delivery_lag=2,
+            payment_lag=2,
+            calendar="tgt",
+            strike=1.0,
+        )
+        expected = f"<rl.FXStraddle at {hex(id(fxo))}>"
+        assert expected == fxo.__repr__()
+
 
 class TestFXStrangle:
     @pytest.mark.parametrize(