bugfix: should set data of the iterator. (#29)

* bugfix: should set data of the iterator.

* add test case, multiple path with overlap

Author: dongbeiouba

src/rax.c

@@ -1673,6 +1673,7 @@ int raxSeek(raxIterator *it, const char *op, unsigned char *ele, size_t len) {
                  * node, but will be our match, representing the key "f".
                  *
                  * So in that case, we don't seek backward. */
+                it->data = raxGetData(it->node);
             } else {
                 if (gt && !raxIteratorNextStep(it,0)) return 0;
                 if (lt && !raxIteratorPrevStep(it,0)) return 0;

t/path.t

@@ -67,3 +67,36 @@ metadata multipe path 1
 metadata multipe path 2
 nil
 nil
+
+
+=== TEST 3: multiple path with overlap
+--- config
+    location /t {
+        content_by_lua_block {
+            local radix = require("resty.radixtree")
+            local rx = radix.new({
+                {
+                    paths = {"/equal*"},
+                    metadata = "metadata multipe path 1",
+                },
+                {
+                    paths = {"/equal123*"},
+                    metadata = "metadata multipe path 2",
+                },
+            })
+
+            ngx.say(rx:match("/equal1"))
+            ngx.say(rx:match("/equal12"))
+            ngx.say(rx:match("/equal123"))
+            ngx.say(rx:match("/equal1234"))
+        }
+    }
+--- request
+GET /t
+--- no_error_log
+[error]
+--- response_body
+metadata multipe path 1
+metadata multipe path 1
+metadata multipe path 2
+metadata multipe path 2