add integration tests for atmosphere

tests/test_simulator.py

@@ -1,4 +1,5 @@
 from numpy.testing import run_module_suite
+import numpy as np
 
 from spectractor import parameters
 from spectractor.simulation.simulator import (SpectrumSimulator, SpectrumSimulatorSimGrid,
@@ -8,6 +9,38 @@
 import os
 
 
+def test_atmosphere():
+    a = Atmosphere(airmass=1.2, pressure=800, temperature=5)
+    transmission = a.simulate(ozone=400, pwv=5, aerosols=0.05)
+    assert transmission is not None
+    assert a.transmission(500) > 0
+    assert a.ozone == 400
+    assert a.pwv == 5
+    assert a.aerosols == 0.05
+    a.plot_transmission()
+
+    a = AtmosphereGrid(image_filename='tests/data/reduc_20170605_028.fits', pwv_grid = [5, 5, 1], ozone_grid = [400, 400, 1], aerosol_grid = [0.0, 0.1, 2])
+    atmospheric_grid = a.compute()
+    assert np.sum(atmospheric_grid) > 0
+    assert np.all(np.isclose(a.atmgrid[0, a.index_atm_data:], parameters.LAMBDAS))
+    assert not np.any(np.isclose(a.atmgrid[1, a.index_atm_data:], np.zeros_like(parameters.LAMBDAS), rtol=1e-6))
+    assert a.atmgrid.shape == (3, a.index_atm_data + len(parameters.LAMBDAS))
+    a.save_file(a.image_filename.replace('.fits', '_atmsim.fits'))
+    assert os.path.isfile('tests/data/reduc_20170605_028_atmsim.fits')
+    a.load_file(a.image_filename.replace('.fits', '_atmsim.fits'))
+    assert np.all(a.AER_Points == np.array([0., 0.1]))
+    assert np.all(a.PWV_Points == np.array([5.]))
+    assert np.all(a.OZ_Points == np.array([400.]))
+
+    a.plot_transmission()
+    a.plot_transmission_image()
+
+    a = AtmosphereGrid(filename='tests/data/reduc_20170530_134_atmsim.fits')
+    lambdas = np.arange(200, 1200)
+    transmission = a.simulate(ozone=400, pwv=5, aerosols=0.05)
+    assert np.max(transmission(lambdas)) < 1 and np.min(transmission(lambdas)) >= 0
+
+
 def test_simulator():
     file_names = ['tests/data/reduc_20170530_134_spectrum.fits']