feature: added new cjson.array_mt metatable to allow enforcing JSON array encoding.

Signed-off-by: Yichun Zhang (agentzh) <agentzh@gmail.com>

1 files changed, 75 insertions, 4 deletions

diff --git a/tests/agentzh.t b/tests/agentzh.t
index 0b281a1..dd70fb8 100644
--- a/tests/agentzh.t
+++ b/tests/agentzh.t
@@ -116,7 +116,78 @@ print(cjson.encode(data))
 
 
 
-=== TEST 9: multiple calls to lua_cjson_new (1/2)
+=== TEST 9: array_mt on empty tables
+--- lua
+local cjson = require "cjson"
+local data = {}
+setmetatable(data, cjson.array_mt)
+print(cjson.encode(data))
+--- out
+[]
+
+
+
+=== TEST 10: array_mt on non-empty tables
+--- lua
+local cjson = require "cjson"
+local data = { "foo", "bar" }
+setmetatable(data, cjson.array_mt)
+print(cjson.encode(data))
+--- out
+["foo","bar"]
+
+
+
+=== TEST 11: array_mt on non-empty tables with holes
+--- lua
+local cjson = require "cjson"
+local data = {}
+data[1] = "foo"
+data[2] = "bar"
+data[4] = "last"
+data[9] = "none"
+setmetatable(data, cjson.array_mt)
+print(cjson.encode(data))
+--- out
+["foo","bar",null,"last"]
+
+
+
+=== TEST 12: array_mt on tables with hash part
+--- lua
+local cjson = require "cjson"
+local data
+
+if jit and string.find(jit.version, "LuaJIT 2.1.0", nil, true) then
+    local new_tab = require "table.new"
+    data = new_tab(0, 2) -- allocating hash part only
+
+else
+    data = {}
+end
+
+data.foo = "bar"
+data[1] = "hello"
+setmetatable(data, cjson.array_mt)
+print(cjson.encode(data))
+--- out
+["hello"]
+
+
+
+=== TEST 13: multiple calls to lua_cjson_new (1/3)
+--- lua
+local cjson = require "cjson"
+package.loaded["cjson"] = nil
+require "cjson"
+local arr = setmetatable({}, cjson.array_mt)
+print(cjson.encode(arr))
+--- out
+[]
+
+
+
+=== TEST 14: multiple calls to lua_cjson_new (2/3)
 --- lua
 local cjson = require "cjson"
 package.loaded["cjson"] = nil
@@ -128,7 +199,7 @@ print(cjson.encode(arr))
 
 
 
-=== TEST 10: multiple calls to lua_cjson_new (2/2)
+=== TEST 15: multiple calls to lua_cjson_new (3/3)
 --- lua
 local cjson = require "cjson.safe"
 -- load another cjson instance (not in package.loaded)
@@ -140,7 +211,7 @@ print(cjson.encode(arr))
 
 
 
-=== TEST 11: & in JSON
+=== TEST 16: & in JSON
 --- lua
 local cjson = require "cjson"
 local a="[\"a=1&b=2\"]"
@@ -151,7 +222,7 @@ print(cjson.encode(b))
 
 
 
-=== TEST 12: default and max precision
+=== TEST 17: default and max precision
 --- lua
 local math = require "math"
 local cjson = require "cjson"