tests: added test cases for escaping control and utf8 characters in ngx.req.add_header and ngx.resp.add_header

Author: zhuizhuhaomeng

t/ngx-req.t

@@ -235,3 +235,83 @@ ok
 bad 'value' argument: string or table expected, got nil
 bad 'value' argument: string or table expected, got nil
 bad 'value' argument: non-empty table expected
+
+
+
+=== TEST 12: ngx_req.add_header (header name with control characters)
+--- config
+    location /bar {
+        access_by_lua_block {
+            local ngx_req = require "ngx.req"
+            ngx_req.add_header("header\r\nabc", "value")
+        }
+        proxy_pass http://127.0.0.1:$server_port/foo;
+    }
+
+    location = /foo {
+        echo $echo_client_request_headers;
+    }
+--- request
+GET /bar
+--- response_body_like chomp
+\bheader%0D%0Aabc: value\r\n
+
+
+
+=== TEST 13: ngx_req.add_header (header value with control characters)
+--- config
+    location /bar {
+        access_by_lua_block {
+            local ngx_req = require "ngx.req"
+            ngx_req.add_header("header", "value\r\nabc")
+        }
+        proxy_pass http://127.0.0.1:$server_port/foo;
+    }
+
+    location = /foo {
+        echo $echo_client_request_headers;
+    }
+--- request
+GET /bar
+--- response_body_like chomp
+\bheader: value%0D%0Aabc\r\n
+
+
+
+=== TEST 14: ngx_req.add_header (header name with Chinese characters)
+--- config
+    location /bar {
+        access_by_lua_block {
+            local ngx_req = require "ngx.req"
+            ngx_req.add_header("header中文", "value")
+        }
+        proxy_pass http://127.0.0.1:$server_port/foo;
+    }
+
+    location = /foo {
+        echo $echo_client_request_headers;
+    }
+--- request
+GET /bar
+--- response_body_like chomp
+\bheader%E4%B8%AD%E6%96%87: value
+
+
+
+=== TEST 15: ngx_req.add_header (header value with Chinese characters)
+--- config
+    location /bar {
+        access_by_lua_block {
+            local ngx_req = require "ngx.req"
+            ngx_req.add_header("header", "value中文")
+        }
+        proxy_pass http://127.0.0.1:$server_port/foo;
+    }
+
+    location = /foo {
+        echo $echo_client_request_headers;
+    }
+--- request
+GET /bar
+--- response_body_like chomp
+\bheader: value中文

t/ngx-resp.t

@@ -3,7 +3,7 @@ use t::TestCore;
 
 repeat_each(2);
 
-plan tests => repeat_each() * (blocks() * 3);
+plan tests => repeat_each() * (blocks() * 3 + 4);
 
 add_block_preprocessor(sub {
     my $block = shift;
@@ -120,3 +120,67 @@ Date: now
     }
 --- response_body
 Foo: aaa
+
+
+
+=== TEST 7: ngx.resp.add_header (header name with control characters)
+--- config
+    location = /t {
+        content_by_lua_block {
+            local ngx_resp = require "ngx.resp"
+            ngx_resp.add_header("head\r\n", "value")
+            ngx.say("OK")
+        }
+    }
+--- response_body
+OK
+--- response_headers
+head%0D%0A: value
+
+
+
+=== TEST 8: ngx.resp.add_header (header value with control characters)
+--- config
+    location = /t {
+        content_by_lua_block {
+            local ngx_resp = require "ngx.resp"
+            ngx_resp.add_header("head", "value\r\n")
+            ngx.say("OK")
+        }
+    }
+--- response_body
+OK
+--- response_headers
+head: value%0D%0A
+
+
+
+=== TEST 9: ngx.resp.add_header (header name with Chinese characters)
+--- config
+    location = /t {
+        content_by_lua_block {
+            local ngx_resp = require "ngx.resp"
+            ngx_resp.add_header("head中文", "value")
+            ngx.say("OK")
+        }
+    }
+--- response_body
+OK
+--- response_headers
+head%E4%B8%AD%E6%96%87: value
+
+
+
+=== TEST 10: ngx.resp.add_header (header value with Chinese characters)
+--- config
+    location = /t {
+        content_by_lua_block {
+            local ngx_resp = require "ngx.resp"
+            ngx_resp.add_header("head", "value中文")
+            ngx.say("OK")
+        }
+    }
+--- response_body
+OK
+--- response_headers
+head: value中文