Unit test fixes (#58)

* added manifest.safe to test SAFE/zip
* updated burst ID format
* fixed directory structure in zip to match S1 SAFE spec
* documentation fix

Author: LiangJYu

src/s1reader/s1_burst_slc.py

@@ -142,7 +142,7 @@ class Sentinel1BurstSlc:
     doppler: Doppler
     range_bandwidth: float
     polarization: str # {VV, VH, HH, HV}
-    burst_id: str # t{track_number}_iw{1,2,3}_b{burst_index}
+    burst_id: str # t{track_number}_{burst_index}_iw{1,2,3}
     platform_id: str # S1{A,B}
     center: tuple # {center lon, center lat} in degrees
     border: list # list of lon, lat coordinate tuples (in degrees) representing burst border

src/s1reader/s1_reader.py

@@ -12,7 +12,7 @@
 from s1reader.s1_burst_slc import Doppler, Sentinel1BurstSlc
 
 
-esa_track_burst_id_file = f"{os.path.dirname(os.path.realpath(__file__))}/data/sentinel1_track_burst_id.txt" 
+esa_track_burst_id_file = f"{os.path.dirname(os.path.realpath(__file__))}/data/sentinel1_track_burst_id.txt"
 
 # TODO evaluate if it make sense to combine below into a class
 def as_datetime(t_str, fmt = "%Y-%m-%dT%H:%M:%S.%f"):
@@ -275,8 +275,8 @@ def burst_from_xml(annotation_path: str, orbit_path: str, tiff_path: str,
         List of Sentinel1BurstSlc objects found in annotation XML.
     '''
 
-    # a 1D array where the indices are the Sentinel-1 track number 
-    # and the data at each row are the corresponding cumulative ID 
+    # a 1D array where the indices are the Sentinel-1 track number
+    # and the data at each row are the corresponding cumulative ID
     # number for the last burst of the given track (i.e., line number)
     # get last burst ID number of each track and prepend 0
     tracks_burst_id = np.insert(np.loadtxt(esa_track_burst_id_file,
@@ -366,12 +366,12 @@ def burst_from_xml(annotation_path: str, orbit_path: str, tiff_path: str,
         dt = sensing_times[i] - ascending_node_time
         id_burst = int((dt.seconds + dt.microseconds / 1e6) // burst_interval)
 
-        # To be consistent with ESA let's start the counter of the ID 
-        # from 1 instead of from 0, i,e, the ID of the first burst of the 
+        # To be consistent with ESA let's start the counter of the ID
+        # from 1 instead of from 0, i,e, the ID of the first burst of the
         # first track is 1
         id_burst += 1
 
-        # the IDs are currently local to one track. Let's adjust based on 
+        # the IDs are currently local to one track. Let's adjust based on
         # the last ID of the previous track
         id_burst += tracks_burst_id[track_number-1]
 

tests/data/S1A_IW_SLC__1SDV_20200511T135117_20200511T135144_032518_03C421_7768.zip

@@ -28,7 +28,7 @@ def test_burst(bursts):
         [-2056.701472691132, 353389.9614836443, -54143009.57327797]]
 
     for i, burst in enumerate(bursts):
-        expected_burst_id = f't71_iw3_b{844 + i}'
+        expected_burst_id = f't71_{151200 + i}_iw3'
         assert burst.burst_id == expected_burst_id
         assert burst.i_burst == i