Add diagnostic to enforce lowercase local element names (#6)

- diagnostic `uppercase-local` in group `conventions`, disabled by
default
- isolated unit tests for diagnostic

1 files changed, 66 insertions, 0 deletions

diff --git a/test/diagnostics/uppercase-local.lua b/test/diagnostics/uppercase-local.lua
new file mode 100644
index 00000000..fc0b95d1
--- /dev/null
+++ b/test/diagnostics/uppercase-local.lua
@@ -0,0 +1,66 @@
+local config = require 'config'
+local util   = require 'utility'
+
+-- disable all default groups to make isolated tests
+config.set(nil, 'Lua.diagnostics.groupFileStatus', 
+{
+    ['ambiguity']     = 'None',
+    ['await']         = 'None',
+    ['codestyle']     = 'None',
+    ['conventions']   = 'None',
+    ['duplicate']     = 'None',
+    ['global']        = 'None',
+    ['luadoc']        = 'None',
+    ['redefined']     = 'None',
+    ['strict']        = 'None',
+    ['strong']        = 'None',
+    ['type-check']    = 'None',
+    ['unbalanced']    = 'None',
+    ['unused']        = 'None'
+})
+
+-- enable single diagnostic that is to be tested
+config.set(nil, 'Lua.diagnostics.neededFileStatus',
+{
+    ['uppercase-local'] = 'Any!' -- override groupFileStatus
+})
+
+-- check that global elements are not warned about
+TEST [[
+Var1 = "global"
+VAR2 = "global"
+
+local x = true
+local <!Y!> = false
+local <!Var!> = false
+]]
+
+TEST [[
+local function test1()
+    print()
+end
+
+local function <!Test2!>()
+    print()
+end
+]]
+
+TEST [[
+local function closure1()
+    local elem1 = 1
+    local <!Elem2!> = 2
+end
+
+local function <!Closure2!>()
+    local elem1 = 1
+    local <!Elem2!> = 2
+end
+]]
+
+-- reset configurations
+config.set(nil, 'Lua.diagnostics.groupFileStatus', 
+{})
+config.set(nil, 'Lua.diagnostics.neededFileStatus',
+{})
+config.set(nil, 'Lua.diagnostics.globals',
+{})