actually write correct data

alek/env.txt

@@ -0,0 +1 @@
+{'repo_dir': PosixPath('/home/alek/Desktop/neonX/test_output/test_file_download[debug-pg14]/repo'), 'rust_log_override': None, 'port_distributor': <fixtures.neon_fixtures.PortDistributor object at 0x7f500e15f130>, 's3_mock_server': <fixtures.neon_fixtures.MockS3Server object at 0x7f500e15ed70>, 'neon_cli': <fixtures.neon_fixtures.NeonCli object at 0x7f500c6c7af0>, 'endpoints': <fixtures.neon_fixtures.EndpointFactory object at 0x7f500c6c7a60>, 'safekeepers': [Safekeeper(env=<fixtures.neon_fixtures.NeonEnv object at 0x7f500c6c7a90>, port=SafekeeperPort(pg=15007, http=15008), id=1, running=True), Safekeeper(env=<fixtures.neon_fixtures.NeonEnv object at 0x7f500c6c7a90>, port=SafekeeperPort(pg=15009, http=15010), id=2, running=True), Safekeeper(env=<fixtures.neon_fixtures.NeonEnv object at 0x7f500c6c7a90>, port=SafekeeperPort(pg=15011, http=15012), id=3, running=True)], 'broker': NeonBroker(logfile=PosixPath('/home/alek/Desktop/neonX/test_output/test_file_download[debug-pg14]/repo/storage_broker.log'), port=15004, neon_binpath=PosixPath('/home/alek/Desktop/neonX/target/debug'), handle=<Popen: returncode: None args: ['/home/alek/Desktop/neonX/target/debug/stora...>), 'remote_storage': S3Storage(bucket_name='test_file_download', bucket_region='us-east-1', access_key='test', secret_key='test', endpoint='http://127.0.0.1:15003', prefix_in_bucket=None), 'remote_storage_users': <RemoteStorageUsers.PAGESERVER: 1>, 'pg_version': '14', 'neon_binpath': PosixPath('/home/alek/Desktop/neonX/target/debug'), 'pg_distrib_dir': PosixPath('/home/alek/Desktop/neonX/pg_install'), 'endpoint_counter': 0, 'initial_tenant': `TenantId("861cf3b88b5e53ac412227ed9fd26d10"), 'initial_timeline': TimelineId("04179cf8c30a9d3652cd39d790b4e4b7"), 'pageserver': <fixtures.neon_fixtures.NeonPageserver object at 0x7f500c6c7970>}

alek/output.txt

@@ -0,0 +1 @@
+NoneNone

alek/test_ext.control

@@ -0,0 +1,5 @@
+# mock extension
+comment = 'Mock extension'
+default_version = '1.0'
+module_pathname = '$libdir/test_ext'
+relocatable = true

test_runner/regress/test_download_extensions.py

@@ -35,7 +35,7 @@ def test_file_download(neon_env_builder: NeonEnvBuilder):
     neon_env_builder.num_safekeepers = 3
     env = neon_env_builder.init_start()
 
-    with open("loggg", "w") as f:
+    with open("alek/env.txt", "w") as f:
         f.write(str(env.__dict__))
 
     TEST_EXT_PATH = "v15/share/extension/test_ext.control"
@@ -45,7 +45,7 @@ def test_file_download(neon_env_builder: NeonEnvBuilder):
 
     # 4. Upload test_ext.control file to the bucket
     # Later this will be done by CI/CD
-    with open("test_ext.control", "rb") as data:
+    with open("alek/test_ext.control", "rb") as data:
         neon_env_builder.remote_storage_client.upload_fileobj(
             data, neon_env_builder.remote_storage.bucket_name, TEST_EXT_PATH
         )
@@ -55,10 +55,9 @@ def test_file_download(neon_env_builder: NeonEnvBuilder):
     resp = neon_env_builder.remote_storage_client.get_object(
         Bucket=neon_env_builder.remote_storage.bucket_name, Key=TEST_EXT_PATH
     )
-    content_length = resp["ResponseMetadata"]["HTTPHeaders"]["content-length"]
-    # TODO: this is not the correct path, nor the correct data to write
-    with open("pg_install/v15/lib/test_ext.control", "w") as f:
-        f.write(str(resp))
+    response = resp["Body"]
+    with open("pg_install/v15/lib/test_ext.control", "wb") as f:
+        f.write(response.read())
 
     # env.neon_cli
 
@@ -72,7 +71,7 @@ def test_file_download(neon_env_builder: NeonEnvBuilder):
             # TODO: we should see the test_ext extension here
             other = cur.execute("SELECT * FROM pg_catalog.pg_tables;")
             whatsup = cur.execute("select * from pg_available_extensions;")
-            with open("output.txt", "w") as f:
+            with open("alek/output.txt", "w") as f:
                 f.write(str(whatsup) + str(other))
                 # this is returning None????