reduce build time

.travis.yml

@@ -43,13 +43,13 @@ install:
 script:
   - set -e # fail fast
   # run tests using Python 3
-  - DEBUG=1 LAMBDA_EXECUTOR=docker TEST_ERROR_INJECTION=1 make test
+  - DEBUG=1 LAMBDA_EXECUTOR=docker USE_SSL=1 TEST_ERROR_INJECTION=1 make test
   # run tests using Python 2
   #   Note: we're not using multiple versions in the top-level "python" configuration,
   #   but instead reinstall using 2.x here, as that allows us to re-use some cached libs etc.
   - "make reinstall-p2 > /dev/null"
   - make init
-  - LAMBDA_EXECUTOR=docker-reuse USE_SSL=1 make test
+  - LAMBDA_EXECUTOR=docker-reuse TEST_PATH="tests/integration/test_lambda.py tests/integration/test_integration.py" make test
   # build Docker image
   - make docker-build
   # run Java tests

localstack/utils/testutil.py

@@ -185,7 +185,12 @@ def download_s3_object(s3, bucket, path):
     with tempfile.SpooledTemporaryFile() as tmpfile:
         s3.Bucket(bucket).download_fileobj(path, tmpfile)
         tmpfile.seek(0)
-        return to_str(tmpfile.read())
+        result = tmpfile.read()
+        try:
+            result = to_str(result)
+        except Exception:
+            pass
+        return result
 
 
 def map_all_s3_objects(to_json=True):
@@ -194,9 +199,13 @@ def map_all_s3_objects(to_json=True):
     for bucket in s3_client.buckets.all():
         for key in bucket.objects.all():
             value = download_s3_object(s3_client, key.bucket_name, key.key)
-            if to_json:
-                value = json.loads(value)
-            result['%s/%s' % (key.bucket_name, key.key)] = value
+            try:
+                if to_json:
+                    value = json.loads(value)
+                result['%s/%s' % (key.bucket_name, key.key)] = value
+            except Exception:
+                # skip non-JSON or binary objects
+                pass
     return result