Add a unit test for dyn bgd hotpix imposter calc

setup.py

@@ -2,12 +2,14 @@
 from setuptools import setup
 
 
-setup(name='starcheck',
-      use_scm_version=True,
-      setup_requires=['setuptools_scm', 'setuptools_scm_git_archive'],
-      author='Jean Connelly',
-      author_email='jconnelly@cfa.harvard.edu',
-      packages=['starcheck'],
-      include_package_data=True,
-      scripts=['starcheck/src/starcheck'],
-      )
+setup(
+    name="starcheck",
+    use_scm_version=True,
+    setup_requires=["setuptools_scm", "setuptools_scm_git_archive"],
+    author="Jean Connelly",
+    author_email="jconnelly@cfa.harvard.edu",
+    packages=["starcheck", "starcheck.tests"],
+    test_requires=["pytest"],
+    include_package_data=True,
+    scripts=["starcheck/src/starcheck"],
+)

starcheck/__init__.py

@@ -3,3 +3,12 @@
 import ska_helpers
 
 __version__ = ska_helpers.get_version(__package__)
+
+
+def test(*args, **kwargs):
+    """
+    Run py.test unit tests.
+    """
+    import testr
+
+    return testr.test(*args, **kwargs)

starcheck/tests/test_utils.py

@@ -0,0 +1,68 @@
+from starcheck.utils import check_hot_pix
+
+
+def test_check_dynamic_hot_pix():
+    # Parameters of obsid 25274 from JUL0323A
+    idxs = [1, 2, 3, 4, 5, 6, 7, 8]
+    yags = [
+        -773.135672595873,
+        2140.37683262341,
+        -1826.2356726102,
+        -1380.0856717436,
+        -713.835673125859,
+        -1322.09192254126,
+        -2185.44191819395,
+        101.314326039055,
+    ]
+    zags = [
+        -1741.99192158156,
+        166.726825875404,
+        160.264325897248,
+        -2469.16691506774,
+        -436.641923465157,
+        -1728.21692250903,
+        -1033.99192330043,
+        1259.22057376853,
+    ]
+    mags = [7, 7, 7, 8.217, 9.052, 9.75, 10.407, 10.503]
+    types = ["FID", "FID", "FID", "BOT", "BOT", "BOT", "BOT", "BOT"]
+    t_ccd = -11.2132562902057
+    dither_y = 7.9989482672109
+    dither_z = 7.9989482672109
+
+    # Use a date before the PEA patch uplink
+    date = "2023:138"
+
+    imposters1 = check_hot_pix(
+        idxs, yags, zags, mags, types, t_ccd, date, dither_y, dither_z
+    )
+
+    # Use a date after the PEA patch uplink
+    date = "2023:140"
+    imposters2 = check_hot_pix(
+        idxs, yags, zags, mags, types, t_ccd, date, dither_y, dither_z
+    )
+
+    # These stars are in mag-sorted order so the bonus should be applied to the last two
+    # Stars with idx 7 and 8 should have bonus-applied t_ccd
+    dyn_bgd_dt_ccd = 4.0
+
+    # The imposters should be the same except for t_ccd, offset, mag
+    # as these dates were selected to have matching dark cal files
+    for imposter1, imposter2 in zip(imposters1, imposters2):
+        assert imposter1["dark_date"] == imposter2["dark_date"]
+        assert imposter1["idx"] == imposter2["idx"]
+        assert imposter1["bad2_row"] == imposter2["bad2_row"]
+        assert imposter1["bad2_col"] == imposter2["bad2_col"]
+        assert imposter1["t_ccd"] == t_ccd
+        assert imposter1["status"] == 0
+        assert imposter2["status"] == 0
+        if imposter1["idx"] < 7:
+            assert imposter2["t_ccd"] == imposter1["t_ccd"]
+            assert imposter1["bad2_mag"] == imposter2["bad2_mag"]
+            assert imposter1["offset"] == imposter2["offset"]
+        else:
+            assert imposter2["t_ccd"] == imposter1["t_ccd"] - dyn_bgd_dt_ccd        
+            assert imposter1["bad2_mag"] < imposter2["bad2_mag"]
+            assert imposter1["offset"] > imposter2["offset"]
+

starcheck/utils.py

@@ -386,6 +386,7 @@ def imposter_offset(cand_mag, imposter_mag):
                         "bad2_mag": float(imp_mags[0]),
                         "offset": float(offset),
                         "t_ccd": float(t_ccd),
+                        "dark_date": dark_props["date"],
                     }
                 )
             except Exception: