Some utf8 tests and fixing minor library issues.

library.lua

@@ -642,7 +642,7 @@ library_function {
 	func   =  math.exp,
 	name   = 'math.exp',
 	para   = 'x',
-	docs   = 'Returns the value ex.'
+	docs   = 'Returns the value e^x. (Euler\'s number raised to the power of x.)'
 }
 
 library_function {
@@ -663,14 +663,14 @@ library_function {
 	func   =  math.frexp,
 	name   = 'math.frexp',
 	para   = 'x',
-	docs   = 'Returns m and e such that x = m2e, e is an integer and the absolute value of m is in the range [0.5, 1) (or zero when x is zero).'
+	docs   = 'Returns m and e such that x = m*2^e, e is an integer and the absolute value of m is in the range [0.5, 1) (or zero when x is zero).'
 }
 
 library_function {
 	func   =  math.ldexp,
 	name   = 'math.ldexp',
 	para   = 'm, e',
-	docs   = 'Returns m2e (e should be an integer).'
+	docs   = 'Returns m*2^e (e should be an integer).'
 }
 
 library_function {
@@ -712,7 +712,7 @@ library_function {
 	func   =  math.pow,
 	name   = 'math.pow',
 	para   = 'x, y',
-	docs   = 'Returns xy. (You can also use the expression x^y to compute this value.)'
+	docs   = 'Returns x raised to the power of y. (You can also use the expression x^y to compute this value.)'
 }
 
 library_function {

test/test_number.lua

@@ -208,6 +208,12 @@ format_test {
     expect = '{ 1/2, 1/3, 1/4, 1/5 }',
 }
 
+format_test {
+    name   = 'Format sequences and tables with common format',
+    input  =  { 0.01, 0.02, 0.03, 0.04 },
+    expect = '{ 0.01, 0.02, 0.03, 0.04 }',
+}
+
 --------------------------------------------------------------------------------
 
 return SUITE

test/test_pstring.lua

@@ -241,7 +241,11 @@ format_test {
     expect = '\'abc\\255def\'',
 }
 
--- TODO: Add more malformed unicode tests: https://www.cl.cam.ac.uk/~mgk25/ucs/examples/UTF-8-test.txt
+SUITE:addTest('UTF8 Resilience Test', function ()
+    for _, str in ipairs(EXAMPLES.STRING_UTF8) do
+        assert_equal(str, loadstring('return '..format(str))() )
+    end
+end)
 
 --------------------------------------------------------------------------------
 

test/test_resilience.lua

@@ -41,13 +41,6 @@ SUITE:addTest('Dont allow bad types in options', function ()
     assert(error_msg)
 end)
 
---------------------------------------------------------------------------------
--- Survive not loading libs
-
-
--- TODO: Find a way to test this.
-
-
 --------------------------------------------------------------------------------
 -- Strange standard libs
 
@@ -94,4 +87,70 @@ end)
 
 --------------------------------------------------------------------------------
 
+SUITE:addTest('Proper malformed utf8 escaping (through LÖVE)', function ()
+    -- This test asserts that malformed unicode strings are escaped. This is
+    -- done by checking whether LÖVE can draw the sequence of bytes, given by
+    -- `pretty`. LÖVE have roboust unicode checking, and will throw an error if
+    -- the characters is not escaped properly.
+
+    -- The input strings are gotten from TestSuite's example strings.
+
+    local pjk_path = '/tmp/test_pjk_'..os.time()
+
+    local conf = [[
+    function love.conf(t)
+
+        -- Graphics Settings
+        t.window.width = 1
+        t.window.height = 1
+        t.window.minwidth   = 1
+        t.window.minheight  = 1
+
+        -- Modules
+        t.modules.audio     = false
+        t.modules.event     = true
+        t.modules.graphics  = true
+        t.modules.image     = false
+        t.modules.joystick  = false
+        t.modules.keyboard  = false
+        t.modules.math      = false
+        t.modules.mouse     = false
+        t.modules.physics   = false
+        t.modules.sound     = false
+        t.modules.system    = false
+        t.modules.timer     = false
+        t.modules.touch     = false
+        t.modules.video     = false
+        t.modules.window    = true
+        t.modules.thread    = false
+    end]]
+
+    -- Create project, main.lua and conf.lua
+    os.execute('mkdir '..pjk_path)
+    local f = io.open(pjk_path..'/conf.lua', 'w')
+          f:write(conf)
+          f:close()
+    local f = io.open(pjk_path..'/main.lua', 'w')
+          f:write''
+          f:close()
+
+    for i, str in ipairs(EXAMPLES.STRING_UTF8) do
+
+        -- Create project and main.lua
+        local f = io.open(pjk_path..'/main.lua', 'w')
+              f:write('love.errhand = love.event.quit love.graphics.print('..pretty(str)..') love.event.quit(0)')
+              f:close()
+
+        -- Run project
+        local status_code  =  os.execute('love '..pjk_path)
+        if status_code ~= 0 then
+            local l = {}
+            for i = 1, #str do  l[i] = tostring(str:byte(i))  end
+            error('Could not escape following string properly: '..str..'\n\tByte-sequence: \\'..table.concat(l, '\\'))
+        end
+    end
+end)
+
+--------------------------------------------------------------------------------
+
 return SUITE