added binary file download to test case of download without serializa…

…tion

test/nocredentials.jl

@@ -6,6 +6,8 @@ using JSON
 creds = NoCredentials()
 
 session = GoogleSession(creds, ["devstorage.full_control"])
+
+## Test download of JSON data from Pong dataset
 bucketName = "atari-replay-datasets"
 prefix="dqn/Pong/1/replay_logs/\$store\$_action"
 
@@ -17,6 +19,13 @@ end
 
 EXPECTED_PARITY = 0xf1
 
-@testset "NoCredentials" begin
+## Test download of binary data from sentinel dataset
+sentinelbucket = "gcp-public-data-sentinel-2"
+sentinelpath = "L2/tiles/32/T/NS/S2A_MSIL2A_20210506T102021_N0300_R065_T32TNS_20210506T132458.SAFE/GRANULE/L2A_T32TNS_A030664_20210506T102022/IMG_DATA/R20m/T32TNS_20210506T102021_B07_20m.jp2"
+sentinelimage = GoogleCloud.storage(:Object, :get, sentinelbucket, sentinelpath; session)
+EXPECTED_PARITY_SENTINEL = 0x6e
+
+@testset "storage access and NoCredentials" begin
     @test reduce(⊻, fetch.(parities)) == EXPECTED_PARITY
+    @test reduce(⊻, sentinelimage) == EXPECTED_PARITY_SENTINEL
 end