TST: Fix test_flight and environment interpolation due to new ISA bounds

Author: Gui-FernandesBR

rocketpy/environment/environment.py

@@ -2555,7 +2555,9 @@ def pressure_function(h):
         # Discretize this Function to speed up the trajectory simulation
         min_height = geopotential_height_to_geometric_height(-2000, earth_radius)
         max_height = geopotential_height_to_geometric_height(80000, earth_radius)
-        altitudes = np.linspace(min_height, max_height, 100)
+        altitudes_below = np.linspace(min_height, 0, 10, endpoint=False)
+        altitudes_above = np.linspace(0, max_height, 90)
+        altitudes = np.concatenate((altitudes_below, altitudes_above))
         pressures = [pressure_function(h) for h in altitudes]
 
         return np.column_stack([altitudes, pressures])

tests/integration/simulation/test_flight.py

@@ -460,7 +460,7 @@ def test_freestream_speed_at_apogee(example_plain_env, calisto):
 
     assert np.isclose(
         test_flight.stream_velocity_x(test_flight.apogee_time),
-        0.4641492104717301,
+        0.46416088113985227,
         atol=hard_atol,
     )
     assert np.isclose(
@@ -472,11 +472,11 @@ def test_freestream_speed_at_apogee(example_plain_env, calisto):
     )
     assert np.isclose(
         test_flight.free_stream_speed(test_flight.apogee_time),
-        0.4641492104717798,
+        0.46416088113985277,
         atol=hard_atol,
     )
     assert np.isclose(
-        test_flight.apogee_freestream_speed, 0.4641492104717798, atol=hard_atol
+        test_flight.apogee_freestream_speed, 0.46416088113985277, atol=hard_atol
     )