validate schema on module tests

tests/schema_validation.lua

@@ -2,44 +2,21 @@ TestSchemaValidator = {}
 
 local config = require('config')
 
-local function len(t)
-  local count = 0
-  for _ in pairs(t) do count = count + 1 end
-  return count
-end
-
-function pprint(t, ident)
-    local ident = ident or 0
-    if type(t) == 'table' then
-        local count = 0
-        for k, v in pairs(t) do
-            print(string.rep('\t', ident) .. k)
-            pprint(v, ident + 1)
-            count = count + 1
-        end
-        if count == 0 then
-            print('<empty table>')
-        end
-    else
-        print(string.rep('\t', ident) .. tostring(t))
-    end
-end
-
 function TestSchemaValidator:testBasicFields()
     local errors = config.validateSchema({a={type='string'}}, {a='test'})
-    lu.assertIs(len(errors), 0)
+    lu.assertIs(table.len(errors), 0)
     local errors = config.validateSchema({a={type='number'}}, {a=123})
-    lu.assertIs(len(errors), 0)
+    lu.assertIs(table.len(errors), 0)
     local errors = config.validateSchema({a={type='string'}}, {a=123})
-    lu.assertIs(len(errors), 1)
+    lu.assertIs(table.len(errors), 1)
 end
 
 function TestSchemaValidator:testList()
     local errors = config.validateSchema({a={type='list', schema={type='number'}}}, {a={1,2,3}})
-    lu.assertIs(len(errors), 0)
+    lu.assertIs(table.len(errors), 0)
 
     local errors = config.validateSchema({a={type='list', schema={type='number'}}}, {a={1,2,3,'asd'}})
-    lu.assertIs(len(errors), 1)
+    lu.assertIs(table.len(errors), 1)
 end
 
 function TestSchemaValidator:testTable()
@@ -60,7 +37,7 @@ function TestSchemaValidator:testTable()
             {b=2}
         }
     )
-    lu.assertIs(len(errors), 0)
+    lu.assertIs(table.len(errors), 0)
 
     local errors = config.validateSchema(
         TEST_SCHEMA,
@@ -68,5 +45,5 @@ function TestSchemaValidator:testTable()
             {b='sex'}
         }
     )
-    lu.assertIs(len(errors), 1)
+    lu.assertIs(table.len(errors), 1)
 end