added more tests for conditional GETs and 304 responses.

Author: agentzh

t/etag.t

@@ -5,7 +5,7 @@ use Test::Nginx::Socket;
 
 #repeat_each(2);
 
-plan tests => repeat_each() * (5 * blocks() + 5);
+plan tests => repeat_each() * (5 * blocks() + 4);
 
 $ENV{TEST_NGINX_MEMCACHED_PORT} ||= 11211;
 
@@ -108,3 +108,80 @@ Last-Modified: Sat, 01 Mar 2014 01:02:38 GMT
 --- response_body:
 --- error_code: 304
 
+
+
+=== TEST 4: flush all (not using ngx_srcache)
+--- config
+    location /flush {
+        set $memc_cmd 'flush_all';
+        memc_pass 127.0.0.1:$TEST_NGINX_MEMCACHED_PORT;
+        add_header X-Fetch-Status $srcache_fetch_status;
+        add_header X-Store-Status $srcache_store_status;
+    }
+--- response_headers
+Content-Type: text/plain
+Content-Length: 4
+X-Fetch-Status: BYPASS
+X-Store-Status: BYPASS
+
+--- request
+GET /flush
+--- response_body eval: "OK\r\n"
+
+
+
+=== TEST 5: basic fetch (cache miss, 304)
+--- config
+    location /foo {
+        default_type text/css;
+        srcache_fetch GET /memc $uri;
+        srcache_store PUT /memc $uri;
+
+        content_by_lua '
+            ngx.header["ETag"] = [["abcd1234"]]
+            ngx.header["Last-Modified"] = "Sat, 01 Mar 2014 01:02:38 GMT"
+            ngx.say("hello")
+        ';
+        #echo hello;
+        add_header X-Fetch-Status $srcache_fetch_status;
+        add_header X-Store-Status $srcache_store_status;
+    }
+
+    location /memc {
+        internal;
+
+        set $memc_key $query_string;
+        set $memc_exptime 300;
+        memc_pass 127.0.0.1:$TEST_NGINX_MEMCACHED_PORT;
+    }
+--- request
+GET /foo
+--- more_headers
+If-None-Match: "abcd1234"
+--- response_headers
+Content-Length:
+X-Fetch-Status: MISS
+X-Store-Status: BYPASS
+Last-Modified: Sat, 01 Mar 2014 01:02:38 GMT
+--- response_body:
+--- error_code: 304
+--- wait: 0.1
+--- error_log
+--- log_level: debug
+
+
+
+=== TEST 6: basic fetch (cache hit)
+--- config
+    location /memc {
+        #internal;
+
+        set $memc_key $query_string;
+        set $memc_exptime 300;
+        memc_pass 127.0.0.1:$TEST_NGINX_MEMCACHED_PORT;
+    }
+--- request
+GET /memc?/foo
+--- response_body_like: 404 Not Found
+--- error_code: 404
+