Add tests for .select_modules() method

tests/test_calcat_interface2.py

@@ -72,6 +72,22 @@ def test_DSSC_modules_missing():
     assert dssc_cd.module_nums == modnos
     assert dssc_cd.qm_names == [f"Q{(m // 4) + 1}M{(m % 4) + 1}" for m in modnos]
 
+    offset = dssc_cd["Offset"]
+    assert offset.module_nums == modnos
+
+    # test ModulesConstantVersions.select_modules()
+    modnos_q3 = list(range(8, 12))
+    aggs_q3 = [f"DSSC{m:02}" for m in modnos_q3]
+    qm_q3 = [f"Q3M{i}" for i in range(1, 5)]
+    assert offset.select_modules(modnos_q3).module_nums == modnos_q3
+    assert offset.select_modules(aggregators=aggs_q3).module_nums == modnos_q3
+    assert offset.select_modules(qm_names=qm_q3).module_nums == modnos_q3
+
+    # test CalibrationData.select_modules()
+    assert dssc_cd.select_modules(modnos_q3).module_nums == modnos_q3
+    assert dssc_cd.select_modules(aggregators=aggs_q3).module_nums == modnos_q3
+    assert dssc_cd.select_modules(qm_names=qm_q3).module_nums == modnos_q3
+
 
 @pytest.mark.requires_gpfs
 def test_LPD_constant_missing():