Individually test multiple s3fs flags

Remove unneeded comments; single part limits ensure that the tests
exercise multipart code paths even with smaller files.
References #971.

src/s3fs.cpp

@@ -983,6 +983,9 @@ static int do_create_bucket()
       // retry to check
       s3fscurl.DestroyCurlHandle();
       res = s3fscurl.PutRequest("/", meta, tmpfd);
+    }else if(responseCode == 409){
+      // bucket already exists
+      res = 0;
     }
   }
   if(ptmpfp != NULL){

test/integration-test-common.sh

@@ -135,7 +135,6 @@ function stop_s3proxy {
 # Mount the bucket, function arguments passed to s3fs in addition to
 # a set of common arguments.  
 function start_s3fs {
-
     # Public bucket if PUBLIC is set
     if [ -n "${PUBLIC}" ]; then
         AUTH_OPT="-o public_bucket=1"

test/s3proxy.conf

@@ -1,5 +1,5 @@
 s3proxy.secure-endpoint=https://127.0.0.1:8080
-s3proxy.authorization=aws-v4
+s3proxy.authorization=aws-v2-or-v4
 s3proxy.identity=local-identity
 s3proxy.credential=local-credential
 s3proxy.keystore-path=keystore.jks

test/small-integration-test.sh

@@ -12,19 +12,33 @@ REQUIRE_ROOT=require-root.sh
 
 source integration-test-common.sh
 
+CACHE_DIR="/tmp/s3fs-cache"
+rm -rf "${CACHE_DIR}"
+mkdir "${CACHE_DIR}"
+
+FLAGS=(
+    enable_content_md5
+    nocopyapi
+    nomultipart
+    notsup_compat_dir
+    sigv2
+    singlepart_copy_limit=$((10 * 1024))  # limit size to exercise multipart code paths
+    use_cache="${CACHE_DIR}"
+    #use_sse  # TODO: S3Proxy does not support SSE
+)
+
 start_s3proxy
 
-#
-# enable_content_md5
-#    Causes s3fs to validate file contents.  This isn't included in the common
-#    options used by start_s3fs because tests may be performance tests
-# singlepart_copy_limit
-#    Appeared in upstream s3fs-fuse tests, possibly a limitation of S3Proxy
-#    TODO: github archaeology to see why it was added.  
-#
-start_s3fs -o enable_content_md5 \
-           -o singlepart_copy_limit=$((10 * 1024))
+for flag in ${FLAGS[*]}; do
+    echo "testing s3fs flag: $flag"
 
-./integration-test-main.sh
+    start_s3fs -o $flag
+
+    ./integration-test-main.sh
+
+    stop_s3fs
+done
+
+stop_s3proxy
 
 echo "$0: tests complete."