diff --git a/tests/fail.lit.complex.md b/tests/fail.lit.complex.md
new file mode 100644
index 0000000..f10d637
--- /dev/null
+++ b/tests/fail.lit.complex.md
@@ -0,0 +1,23 @@
+# Declarations
+
+    -- fn1(x)
+    #x + 2 + 3
+
+# Invalid Declarations
+
+    -- fn0 not declared: fn3(x)
+    #fn0 * #x
+
+    -- infinite loop: fn3(x)
+    #fn3(1) * #x
+
+# Invalid Calls
+
+* fn1(1, $stdout: "true") has invalid rkwarg value
+* fn1(1, $act: "return") has invalid rkwarg
+* fn1(1, $eval: "/path/does/not/exists") has invalid path
+* fn1(1, $code: "/path/does/not/exists") has invalid path
+* fn1(1, $lua: "/path/does/not/exists") has invalid path
+* fn1(fn4()); `fn4()` is not declared
+
+Invalid calls and declarations generate and collects errors.
diff --git a/tests/fail.lit.simple.md b/tests/fail.lit.simple.md
new file mode 100644
index 0000000..17b3294
--- /dev/null
+++ b/tests/fail.lit.simple.md
@@ -0,0 +1,38 @@
+# Declarations
+
+    -- fn1()
+    1 + 2 + 3
+
+    -- fn2(n)
+    #n .. " " .. #n)
+
+    -- fn3(a, b)
+    #a * #b
+
+# Invalid Declarations
+
+    -- misses end: fn4(
+    1 + 2 + 3
+
+    -- fn5(invalid arg)
+    4 + 5 + 6
+
+    -- misses arg: fn6()
+    #n .. " " .. #n
+
+    -- misses separator: fn7(a b)
+    #a * #b
+
+# Invalid Calls
+
+* fn1(1) adds arg
+* fn1( never end
+* fn1(invalid arg)
+* fn2() misses arg
+* fn2(a: 3) wrong kwarg
+* fn3(1 2) misses separator
+* fn3(1, 2, 3) wrong args number
+* fn3(1, b: 2) mixed arg and kwarg
+* fn4() fn5() not declared
+
+Invalid calls and declarations generate and collects errors.
diff --git a/tests/pass.lit.complex.md b/tests/pass.lit.complex.md
new file mode 100644
index 0000000..3c96619
--- /dev/null
+++ b/tests/pass.lit.complex.md
@@ -0,0 +1,46 @@
+# Declarations
+
+    -- fn1()
+    print("I am in stdout")
+    "Wipes it"
+
+    -- fn2()
+    1 + 2 + 3
+
+    -- fn3(n)
+    #n .. " " .. #n
+
+    -- fn4(a, b)
+    #a * #b
+
+# Recursive Declarations
+
+    -- fn5(x)
+    #fn2() * x
+
+    -- fn6(y, z)
+    #y + #fn2($action: "quote") + #z
+
+    -- fn7(a) 
+    #a + #fn4(#a, #fn2())
+
+# Calls
+
+Valid calls:
+
+* fn1($stdout: true) gets stdout instead of evaluation result. 
+* fn1($action: "wipe") wipes calls and declarations of this function from source document after all calls.
+* fn2($action: "return") returns result after call.
+* fn2($action: "hide") hides call from source document after call.
+* fn2($action: "quote") quotes it without call.
+* fn2($eval: "fn2.txt", $code: "fn2.fnl", $lua: "fn2.lua") writes evaluation results, Fennel code and Lua code.
+* fn3(4, $action: "return") has arg and rkwarg.
+* fn3($action: "return", 5) has rkwarg and arg.
+* fn3($eval: "fn3-4.txt", $code: "fn3-4.fnl", $lua: "fn3-4.lua") writes in same files than below.
+* fn4(a: 1, b: 2, $action: "return") has kwargs and rkwarg.
+* fn4($action: "return", a: 1, b: 2) has rkwarg and kwargs.
+* fn4(a: 1, $action: "return", b: 2) has kwarg, rkwarg and kwarg.
+* fn4($eval: "fn3-4.txt", $code: "fn3-4.fnl", $lua: "fn3-4.lua") writes in same files than above.
+* fn5(10) calls another function inside.
+* fn6(9, 8) calls another quoted function inside.
+* fn7(fn7(1)) calls several functions.
diff --git a/tests/pass.lit.ignored.md b/tests/pass.lit.ignored.md
new file mode 100644
index 0000000..f90b0e3
--- /dev/null
+++ b/tests/pass.lit.ignored.md
@@ -0,0 +1,29 @@
+# Not declarations
+
+    -- doesn't starts with `%a`: \fn1()
+    1 + 2
+
+    -- doesn't starts with `%a` because of the space: fn 2()
+    1 + 2
+
+    -- doesn't continue with `%w`: fn-3()
+    1 + 2
+
+    -- space before `(`: fn4 ()
+    1 + 2
+
+    -- misses `(`: fn5) 
+    1 + 2
+
+    -- misses `()`: fn6 
+    1 + 2
+
+# Not calls
+
+* \fn1() doesn't starts with `%a`
+* fn 2() doesn't starts with `%a` because of the space
+* fn-3() doesn't continue with `%w`
+* fn4 () space before `(`
+* fn5) misses `(`
+* fn6 misses `()`
+* `fn1()` as inline code
diff --git a/tests/pass.lit.simple.md b/tests/pass.lit.simple.md
new file mode 100644
index 0000000..5f9f2df
--- /dev/null
+++ b/tests/pass.lit.simple.md
@@ -0,0 +1,69 @@
+# Calls Before Declarations
+
+* A common call: fn1(). All calls results should be print on `--verbose`.
+* fn1() another common call.
+* fn1()
+* Two calls: fn1() and fn1().
+* Two consecutive calls: fn1() fn1().
+* A call with one arg: fn2(1).
+* A call with two args: fn3(2, 3).
+* A call with args as kwargs: fn2(n: 2) and fn3(b: 4, a: 5).
+
+# Declarations
+
+A declaration:
+
+    -- fn1()
+    1 + 2 + 3
+
+All declarations should be print on `--verbose`.
+
+A declaration with one arg: 
+
+    -- Also valid, Lua is the default: fn2(n)
+    #n .. " " .. #n
+
+A declaration with two args:
+
+    ; Changed lang and no space:fn3(a, b) -> fennel
+    (* #a #b)
+
+A declaration with lang options:
+
+    # fn4(n) -> python -E -X utf8
+    #n * #n
+
+A declaration with arg and scaped:
+
+    -- fn5(x)
+    #x .. "\#x"
+
+# Calls and Data Types
+
+* fn2(3); integer
+* fn2(1_000); integer with separator
+* fn4(1.0); float
+* fn5("str"); string
+* fn5(true)
+* fn5(false)
+* fn2([]); empty array / list / sequential table
+* fn2([0, 1]); array / list / sequential table
+* fn2({}); empty dict / table
+* fn2({"k1": 1, "k2": 2}); dict / table
+
+# Messy Calls
+
+* fn1(       )
+* fn2(   4)
+* fn2(5   )
+* fn2(   6   )
+* fn2(   n:   7)
+* fn2(n:   8   )
+* fn2(   n:   9   )
+* fn2(n:10)
+* fn3(   a: 6, b: 7)
+* fn3(   a: 8   , b: 9)
+* fn3(   a: 10   ,    b: 11)
+* fn3(   a: 12   ,    b:    13)
+* fn3(   a: 14   ,    b:    15   )
+* fn3(a:16,b:17)
diff --git a/tests/pass.lit.warns.md b/tests/pass.lit.warns.md
new file mode 100644
index 0000000..7fd9b82
--- /dev/null
+++ b/tests/pass.lit.warns.md
@@ -0,0 +1,22 @@
+# Declaration Override
+
+    -- fn1()
+    1 + 2 + 3
+
+    -- fn1()
+    4 + 5 + 6
+
+# Unused Declaration
+
+    -- fn2(n)
+    #n .. " " .. #n
+
+# Declaration with Unused Argument
+
+    -- fn3(a)
+    7 + 8 + 9
+
+# Calls
+
+* fn1()
+* fn3(1)
diff --git a/tests/test.md b/tests/test.md
deleted file mode 100644
index ee4b217..0000000
--- a/tests/test.md
+++ /dev/null
@@ -1,133 +0,0 @@
-# Test with Markdown
-
-## Function Declarations 
-
-Valid declarations:
-
-* A declaration: f1() = (+ 1 2 3). All declarations should be print on `--verbose`.
-* f2() = (+ 4 5 6) is another declaration.
-* f3() = (+ 7 8 9)
-* Two declarations, one in inline code: f4() = (- 9 8) and `f5() = (- 7 6)`.
-* Two consecutive declarations: f6() = (- 5 4) f7() = (- 3 2).
-* A declaration with one arg: f8(n) = (* #n #n).
-* A declaration with two args: f9(a, b) = (* #a #b).
-* A declaration with variable number of args: f10(...) = (.. #...).
-
-Not declarations:
-
-* \f11() = (+ 1 2); doesn't starts with `%a`
-* f-12() = (+ 1 2); doesn't continue with `%w`
-* f 13() = (+ 1 2); starts with `%d`
-* f14 () = (+ 1 2); space before `(`
-* f15) = (+ 1 2); misses `(`
-* f16() = + 1 2); misses `(`
-* f17( = (+ 1 2); misses `)`
-* f18() = (+ 1 2); misses `)`
-* f19 = (+ 1 2); misses `()`
-* f20() = + 1 2; misses `()`
-* f21() (+ 1 2); misses `=`
-* `f22() = (+ 1 2)`; inline code is ignored
-
-Block code is ignored:
-
-    f23() = (+ 1 2)
-
-Overrides `f1()` with warn: f1() = (+ 2 3 4) and it should fail on `--fail-if-warnings`.
-
-## Functions Calls
-
-Valid calls:
-
-* A common call: f1(). All calls should be print on `--verbose`.
-* f2() another common call.
-* f3()
-* Two calls, one in inline code: f4() and `f5()`.
-* Two consecutive calls: f6() f7().
-* A call with one arg: f8(2).
-* A call with two args: f9(2, 3).
-* A call with variable number of args: f10("The popular ", "\"Hello, ", "World!\"").
-* A call with args as kwargs: f8(n: 3) and f9(a: 4, b: 5).
-
-Valid calls and data types:
-
-* f10(); no data
-* f10(1, 1_000, 1.0); numbers
-* f10("string"); string
-* f10([]); empty array / list / sequential table
-* f10([0 1]); array / list / sequential table
-* f10({}); empty dict / table
-* f10({"k" 0}); dict / table
-
-Not calls:
-
-* \f11(); doesn't starts with `%a`
-* f-12(); doesn't continue with `%w`
-* f 13(); starts with `%d`
-* f14 (); space before `(`
-* f15); misses `(`
-* f16(a); invalid data type
-* f17(; misses `)`
-* f18(a:); misses kwarg value
-* f19(1 2); misses comma separator
-* f20( ); extra space
-* f21({); incomplete data type 
-
-Invalid calls:
-
-* f8(); misses arg
-* f8(a: 3); wrong kwarg
-* f9(1, 2, 3); wrong args number
-* f9(1, b: 2); mixed arg and kwarg
-* f10(...: 0); `...` can't be kwarg
-* f11(); not declared
-* `f22()`; inline code is ignored
-
-Block code is ignored:
-
-    f23()
-
-Invalid calls generate error.
-
-# Function Calls with Reserved Keyword Arguments
-
-Valid calls:
-
-* f1($action: "return"); returns result after call.
-* f2($action: "clear"); clears it from source document after call.
-* f3($action: "wipe"); wipes it and its declaration after all calls.
-* f4($action: "dump"); dumps its declaration after call.
-* f4($action: "quote"); dumps its declaration without call.
-* f5($eval: "f5.txt", $code: "f5.fnl", $lua: "f5.lua"); writes evaluation results, Lisp code and Lua code.
-* f6($eval: "f6-7.txt", $code: "f6-7.fnl", $lua: "f6-7.lua"); writes in same files than below.
-* f7($eval: "f6-7.txt", $code: "f6-7.fnl", $lua: "f6-7.lua"); writes in same files than above.
-* f8(4, $action: "return")
-* f8($action: "return", 5)
-* f9(a: 1, b: 2, $action: "return")
-* f9($action: "return", a: 1, b: 2)
-* f9(a: 1, $action: "return", b: 2)
-
-Invalid calls:
-
-* f1($act: "return"); invalid rkwarg
-* f2($action: "clearr"); invalid rkwarg value
-* f3($eval: "/path/does/not/exists"); invalid path
-* f4($code: "/path/does/not/exists"); invalid path
-* f5($lua: "/path/does/not/exists"); invalid path
-
-Invalid calls generate error.
-
-# Function Recursion
-
-Valid recursion:
-
-* A declaration that uses a call inside: f24(x) = (* f1() x), result: f24($action: "return").
-* A declaration that uses a call inside with "quote" action: f25(y, z) = (+ f2($action: "quote") y z), result: f25(9, 8, $action: "return").
-* A call with other function as arg: f8(f1()).
-* A call with other function as kwarg: f9(b: 3, a: f2()).
-
-Invalid recursion:
-
-* f26(i) = (* f11() i); `f11()` not declared.
-* f27(j) = (* f27(1) f27(2)); infinite loop.
-* f8(n: f11()); `f11()` not declared.
-* f8(f8(3)); infinite loop.
diff --git a/tests/test.org b/tests/test.org
deleted file mode 100644
index 71ee52c..0000000
--- a/tests/test.org
+++ /dev/null
@@ -1 +0,0 @@
-* Test with Org Mode
diff --git a/tests/test.rst b/tests/test.rst
deleted file mode 100644
index eddab86..0000000
--- a/tests/test.rst
+++ /dev/null
@@ -1,2 +0,0 @@
-Test with reStructuredText
-==========================