Add tests

Author: moznion

test/test.lua

@@ -0,0 +1,57 @@
+local urlencode = require 'urlencode'
+print ('VERSION: ' .. urlencode._VERSION)
+
+local unreserved = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz_.~-'
+
+local test_cases = {}
+
+table.insert(test_cases, {input = '', encoded = '', comment = 'empty string'})
+table.insert(test_cases, {input = ' ', encoded = '+', comment = 'U+0020 SPACE'})
+table.insert(test_cases, {input = unreserved, encoded = unreserved, comment = 'unreserved characters'})
+table.insert(test_cases, {input = 'å', encoded = '%C3%A5', comment = 'U+00E5 in native encoding'})
+table.insert(test_cases, {input = "hello こんにちは", encoded = 'hello+%E3%81%93%E3%82%93%E3%81%AB%E3%81%A1%E3%81%AF', comment = 'with multi-byte characters (Japanese)'})
+table.insert(test_cases, {input = 'ttテeeストstst', encoded = 'tt%E3%83%86ee%E3%82%B9%E3%83%88stst', comment = 'native string'})
+
+
+for cc = 0x01, 0x1F do
+    local c = string.char(cc)
+    if not unreserved:find(c, 0, true) then
+        local code = '%' .. string.format("%02X", cc)
+        local comment = string.format("ordinal %d", cc)
+        table.insert(test_cases, {
+            input = c, encoded = code, comment = comment
+        })
+    end
+end
+
+for cc = 0x21, 0xFF do
+    local c = string.char(cc)
+    if not unreserved:find(c, 0, true) then
+        local code = '%' .. string.format("%02X", cc)
+        local comment = string.format("ordinal %d", cc)
+        table.insert(test_cases, {
+            input = c, encoded = code, comment = comment
+        })
+    end
+end
+
+for i, c in ipairs(test_cases) do
+    local encoded = urlencode.encode_url(c.input)
+    assert(encoded == c.encoded, 'enc: ' .. c.comment)
+    assert(urlencode.decode_url(encoded) == c.input, 'dec: ' .. c.comment)
+end
+
+do
+    local encoded = urlencode.encode_url(string.char(0x00))
+    assert(encoded == '')
+    assert(urlencode.decode_url(encoded) == '')
+end
+
+do
+    local encoded = urlencode.encode_url('test test' .. string.char(0x00) .. ' test')
+    assert(encoded == 'test+test')
+    assert(urlencode.decode_url(encoded) == 'test test')
+end
+
+print 'OK'
+