diff --git a/Readme.md b/Readme.md
index 09c4cb3..45dcc56 100644
--- a/Readme.md
+++ b/Readme.md
@@ -71,7 +71,7 @@ view : Model -> Html.Html Msg
 view model =
   div [ onClick Set ] [ text model ]
 
-specs : Node
+specs : Node msg
 specs =
   describe "Example"
     [ it "clicking on the div should change the text"
@@ -87,6 +87,7 @@ main =
     , update = update
     , view = view
     , init = init
+    , initCmd = Cmd.none
     } specs
 ```
 
diff --git a/source/Spec.elm b/source/Spec.elm
index f7d2d0b..e33a013 100644
--- a/source/Spec.elm
+++ b/source/Spec.elm
@@ -52,8 +52,10 @@ module Spec exposing
 @docs run, runWithProgram
 -}
 import Spec.Assertions exposing (pass, fail, error)
-import Spec.Runner exposing (Prog, State, Msg)
+import Spec.Runner exposing (Prog, State)
+import Spec.Messages exposing (Msg)
 import Spec.Types exposing (..)
+import Spec.CoreTypes exposing (..)
 import Spec.Native
 
 import Task exposing (Task)
@@ -66,20 +68,20 @@ type alias Step =
 
 {-| Representation of a test.
 -}
-type alias Test =
-  Spec.Types.Test
+type alias Test msg =
+  Spec.Types.Test msg
 
 
 {-| The outcome of an assertion or step.
 -}
 type alias Outcome
-  = Spec.Types.Outcome
+  = Spec.CoreTypes.Outcome
 
 
 {-| Representation of a test tree (Node).
 -}
-type alias Node =
-  Spec.Types.Node
+type alias Node msg =
+  Spec.Types.Node msg
 
 
 flip =
@@ -94,21 +96,21 @@ flip =
         ]
       ]
 -}
-group : String -> List Node -> Node
+group : String -> List (Node msg) -> Node msg
 group name nodes =
   GroupNode { name = name, nodes = nodes }
 
 
 {-| Alias for `group`.
 -}
-context : String -> List Node -> Node
+context : String -> List (Node msg) -> Node msg
 context =
   group
 
 
 {-| Alias for `group`.
 -}
-describe : String -> List Node -> Node
+describe : String -> List (Node msg) -> Node msg
 describe =
   group
 
@@ -117,7 +119,7 @@ describe =
 
     test "description"
 -}
-test : String -> List Assertion -> Node
+test : String -> List Assertion -> Node msg
 test name steps =
   TestNode
     { steps = steps
@@ -127,34 +129,35 @@ test name steps =
     , name = name
     , path = []
     , id = -1
+    , initCmd = Nothing
     }
 
 
 {-| Alias for `it`.
 -}
-it : String -> List Assertion -> Node
+it : String -> List Assertion -> Node msg
 it =
   test
 
 
 {-|-}
-before : List Assertion -> Node
+before : List Assertion -> Node msg
 before =
   Before
 
 {-|-}
-layout : List (String, Rect) -> Node
+layout : List (String, Rect) -> Node msg
 layout =
   Layout
 
 {-|-}
-after : List Assertion -> Node
+after : List Assertion -> Node msg
 after =
   After
 
 
 {-|-}
-http : List Request -> Node
+http : List Request -> Node msg
 http =
   Http
 
@@ -303,13 +306,13 @@ steps =
 
 {-| Runs the given tests without an app / component.
 -}
-run : Node -> Program Never (State String msg) (Msg msg)
+run : Node msg -> Program Never (State String msg) (Msg msg)
 run =
   Spec.Runner.run
 
 
 {-| Runs the given tests with the given app / component.
 -}
-runWithProgram : Prog model msg -> Node -> Program Never (State model msg) (Msg msg)
+runWithProgram : Prog model msg -> Node msg -> Program Never (State model msg) (Msg msg)
 runWithProgram =
   Spec.Runner.runWithProgram
diff --git a/source/Spec/Assertions.elm b/source/Spec/Assertions.elm
index ca050cd..db8b122 100644
--- a/source/Spec/Assertions.elm
+++ b/source/Spec/Assertions.elm
@@ -8,11 +8,12 @@ module Spec.Assertions exposing (..)
 
 import Spec.Types exposing (..)
 import Task exposing (Task)
+import Spec.CoreTypes exposing (Outcome(..))
 
 {-| The outcome of an assertion or step.
 -}
 type alias Outcome
-  = Spec.Types.Outcome
+  = Spec.CoreTypes.Outcome
 
 {-| Creates a failed outcome with the given message.
 -}
diff --git a/source/Spec/CoreTypes.elm b/source/Spec/CoreTypes.elm
new file mode 100644
index 0000000..e7fffed
--- /dev/null
+++ b/source/Spec/CoreTypes.elm
@@ -0,0 +1,12 @@
+module Spec.CoreTypes exposing (..)
+
+
+{-| Represents an outcome for a step:
+  * Error - if there was an error during the step (element not found for example)
+  * Fail - represents failure
+  * Pass - represents success
+-}
+type Outcome
+  = Error String
+  | Fail String
+  | Pass String
diff --git a/source/Spec/Messages.elm b/source/Spec/Messages.elm
new file mode 100644
index 0000000..08e8c7c
--- /dev/null
+++ b/source/Spec/Messages.elm
@@ -0,0 +1,10 @@
+module Spec.Messages exposing (..)
+
+import Spec.CoreTypes exposing (..)
+
+{-| Messages for a test program.
+-}
+type Msg msg
+  = Next (Maybe Outcome)
+  | NoOp ()
+  | App msg
diff --git a/source/Spec/Reporter.elm b/source/Spec/Reporter.elm
index 51485e8..9445c02 100644
--- a/source/Spec/Reporter.elm
+++ b/source/Spec/Reporter.elm
@@ -6,6 +6,8 @@ module Spec.Reporter exposing (render)
 -}
 import Spec.Styles as Styles exposing (stylesheet)
 import Spec.Types exposing (..)
+import Spec.CoreTypes exposing (Outcome)
+import Spec.CoreTypes exposing (Outcome(..))
 
 import Json.Encode
 
@@ -48,7 +50,7 @@ renderOutcome outcome =
 
 {-| Renders a test.
 -}
-renderTest : Test -> Html.Html msg
+renderTest : Test msg -> Html.Html msg
 renderTest model =
   let
     requests =
@@ -89,7 +91,7 @@ renderTest model =
 
 {-| Renders the test results.
 -}
-render : List Test -> Html.Html msg
+render : List (Test msg) -> Html.Html msg
 render tests =
   let
     styles =
diff --git a/source/Spec/Runner.elm b/source/Spec/Runner.elm
index c4b3d3d..9468578 100644
--- a/source/Spec/Runner.elm
+++ b/source/Spec/Runner.elm
@@ -4,7 +4,9 @@ module Spec.Runner exposing (..)
 
 @docs run, runWithProgram
 -}
-import Spec.Types exposing (Outcome(..), Assertion, Test, Node)
+import Spec.Types exposing (Assertion, Test, Node)
+import Spec.CoreTypes exposing (Outcome(..))
+import Spec.Messages exposing (Msg(..))
 import Spec.Reporter
 
 import Json.Encode as Json
@@ -19,22 +21,13 @@ import Html
 type alias State model msg =
   { update : msg -> model -> ( model, Cmd msg )
   , view : model -> Html.Html msg
-  , finishedTests : List Test
+  , finishedTests : List (Test msg)
   , appInit : () -> model
-  , tests : List Test
+  , tests : List (Test msg)
   , counter : Int
   , app : model
   }
 
-
-{-| Messages for a test program.
--}
-type Msg msg
-  = Next (Maybe Outcome)
-  | NoOp ()
-  | App msg
-
-
 {-| Representation of an app.
 -}
 type alias Prog model msg =
@@ -42,6 +35,7 @@ type alias Prog model msg =
   , subscriptions : model -> Sub msg
   , view : model -> Html.Html msg
   , init : () -> model
+  , initCmd : Cmd msg
   }
 
 
@@ -79,41 +73,55 @@ update msg model =
 
                 Nothing -> test
           in
-            case test.steps of
-              -- Take the nex step
-              step :: remainingSteps ->
-                let
-                  _ =
-                    Native.Spec.mockHttpRequests test
-
-                  _ =
-                    Native.Spec.setLayout test.layout
-
-                  -- Remove that step from the test
-                  testWithoutStep =
-                    { updatedTest | steps = remainingSteps }
-
-                  -- Create a task from that step
-                  stepTask =
-                    Native.Spec.raf
-                      |> Task.andThen (\_ -> step)
-                      |> Task.perform (Next << Just)
-                in
-                  -- Execute
-                  ( { model | tests = testWithoutStep :: remainingTests }
-                  , stepTask
-                  )
-
-              -- If there is no other steps go for the next test
-              [] ->
-                ( { model
-                  | finishedTests = model.finishedTests ++ [updatedTest]
-                  , counter = model.counter + 1
-                  , app = model.appInit ()
-                  , tests = remainingTests
-                  }
-                , perform (Next Nothing)
-                )
+            case test.initCmd of
+                Just cmd ->
+                    -- if there is app init Cmd to run, run it
+                    let
+                        _ =
+                            Native.Spec.mockHttpRequests test
+
+                        _ =
+                            Native.Spec.setLayout test.layout
+
+                        testWithoutCmd = { test | initCmd = Nothing }
+                    in
+                        ({ model | tests = testWithoutCmd :: remainingTests }, Cmd.batch [ cmd, perform (Next Nothing) ] )
+                Nothing ->
+                    case test.steps of
+                      -- Take the next step
+                      step :: remainingSteps ->
+                        let
+                          _ =
+                            Native.Spec.mockHttpRequests test
+
+                          _ =
+                            Native.Spec.setLayout test.layout
+
+                          -- Remove that step from the test
+                          testWithoutStep =
+                            { updatedTest | steps = remainingSteps }
+
+                          -- Create a task from that step
+                          stepTask =
+                            Native.Spec.raf
+                              |> Task.andThen (\_ -> step)
+                              |> Task.perform (Next << Just)
+                        in
+                          -- Execute
+                          ( { model | tests = testWithoutStep :: remainingTests }
+                          , stepTask
+                          )
+
+                      -- If there is no other steps go for the next test
+                      [] ->
+                        ( { model
+                          | finishedTests = model.finishedTests ++ [updatedTest]
+                          , counter = model.counter + 1
+                          , app = model.appInit ()
+                          , tests = remainingTests
+                          }
+                        , perform (Next Nothing)
+                        )
 
         -- When everything is finished report
         [] ->
@@ -125,13 +133,14 @@ update msg model =
 view : State model msg -> Html.Html (Msg msg)
 view model =
   let
+    app : (String, Html.Html (Msg msg))
     app =
       ( toString model.counter, Html.map App (model.view model.app) )
 
     nodes =
       if List.isEmpty model.tests then
         [ app
-        , ( "report", Spec.Reporter.render model.finishedTests )
+        , ( "report", Html.map App (Spec.Reporter.render model.finishedTests) )
         ]
       else
         [ app ]
@@ -142,38 +151,41 @@ view model =
 
 {-| Runs the given tests without an app / component.
 -}
-run : Node -> Program Never (State String msg) (Msg msg)
+run : Node msg -> Program Never (State String msg) (Msg msg)
 run tests =
   runWithProgram
     { update = (\_ _ -> ( "", Cmd.none ))
     , subscriptions = (\_ -> Sub.none)
     , view = (\_ -> Html.text "")
     , init = (\_ -> "")
+    , initCmd = Cmd.none
     }
     tests
 
 
 {-| Runs the given tests with the given app / component.
 -}
-runWithProgram : Prog model msg -> Node -> Program Never (State model msg) (Msg msg)
+runWithProgram : Prog model msg -> Node msg -> Program Never (State model msg) (Msg msg)
 runWithProgram data tests =
   let
-    processedTests =
+    processedTests : Cmd (Msg msg) -> List (Test msg)
+    processedTests initCmd =
       tests
       |> Spec.Types.flatten []
-      |> List.indexedMap (\index item -> { item | id = index })
+      |> List.indexedMap (\index item -> { item | id = index, initCmd = Just initCmd })
 
-    testToRun =
+    testToRun : Cmd (Msg msg) -> List (Test msg)
+    testToRun initCmd =
       case Native.Spec.getTestId () of
-        Just id -> List.filter (.id >> ((==) id)) processedTests
-        Nothing -> processedTests
+        Just id -> List.filter (.id >> ((==) id)) (processedTests initCmd)
+        Nothing -> processedTests initCmd
   in
     Html.program
       { subscriptions = (\model -> Sub.map App (data.subscriptions model.app))
       , update = update
       , view = view
       , init =
-        ( { tests = testToRun
+        ( { tests = testToRun (Cmd.map App data.initCmd)
           , update = data.update
           , appInit = data.init
           , finishedTests = []
@@ -188,7 +200,7 @@ runWithProgram data tests =
 
 {-| Sends the report to the CLI when running tests in a terminal.
 -}
-report : List Test -> Cmd (Msg msg)
+report : List (Test msg) -> Cmd (Msg msg)
 report tests =
   let
     mockedRequests test =
diff --git a/source/Spec/Types.elm b/source/Spec/Types.elm
index 867ae25..a0cda10 100644
--- a/source/Spec/Types.elm
+++ b/source/Spec/Types.elm
@@ -3,13 +3,16 @@ module Spec.Types exposing (..)
 {-| This module contains the types for specs.
 -}
 import Task exposing (Task)
+import Spec.CoreTypes exposing (..)
+import Spec.Messages exposing (Msg)
 
 {-| Representation of a test.
 -}
-type alias Test =
+type alias Test msg =
   { layout : List (String, Rect)
   , requests : List Request
   , results : List Outcome
+  , initCmd : Maybe (Cmd (Msg msg))
   , steps : List Assertion
   , path : List String
   , name : String
@@ -40,19 +43,19 @@ type alias Rect =
 
 {-| Representation of a test tree (Node).
 -}
-type Node
+type Node msg
   = Layout (List (String, Rect))
   | Before (List Assertion)
   | After (List Assertion)
   | Http (List Request)
-  | GroupNode Group
-  | TestNode Test
+  | GroupNode (Group msg)
+  | TestNode (Test msg)
 
 
 {-| Representation of a test group.
 -}
-type alias Group =
-  { nodes : List Node
+type alias Group msg =
+  { nodes : List (Node msg)
   , name : String
   }
 
@@ -68,17 +71,6 @@ type alias Assertion
 type alias Step = Assertion
 
 
-{-| Represents an outcome for a step:
-  * Error - if there was an error during the step (element not found for example)
-  * Fail - represents failure
-  * Pass - represents success
--}
-type Outcome
-  = Error String
-  | Fail String
-  | Pass String
-
-
 {-| Text data for assertions.
 -}
 type alias TextData =
@@ -121,7 +113,7 @@ outcomeToString outcome =
 
 {-| Turns a tree into a flat list of tests.
 -}
-flatten : List Test -> Node -> List Test
+flatten : List (Test msg) -> Node msg -> List (Test msg)
 flatten tests node =
   case node of
     -- There branches are processed in the group below
diff --git a/spec/AssertionSpec.elm b/spec/AssertionSpec.elm
index 89b1da1..aa9b966 100644
--- a/spec/AssertionSpec.elm
+++ b/spec/AssertionSpec.elm
@@ -43,7 +43,7 @@ view model =
     ]
 
 
-specs : Node
+specs : Node msg
 specs =
   describe "Spec.Assertions"
     [ describe ".containsText"
@@ -166,6 +166,7 @@ specs =
 main =
   runWithProgram
     { init = init
+    , initCmd = Cmd.none
     , update = update
     , view = view
     , subscriptions = \_ -> Sub.none
diff --git a/spec/CssPropertiesSpec.elm b/spec/CssPropertiesSpec.elm
index 642cc59..9741077 100644
--- a/spec/CssPropertiesSpec.elm
+++ b/spec/CssPropertiesSpec.elm
@@ -83,7 +83,7 @@ view : Model -> Html.Html Msg
 view model =
   div [] [ node "style" [] [ text style ] ]
 
-specs : Node
+specs : Node msg
 specs =
   let
     map key =
@@ -103,4 +103,5 @@ main =
     , update = update
     , view = view
     , init = init
+    , initCmd = Cmd.none
     } specs
diff --git a/spec/ExampleSpec.elm b/spec/ExampleSpec.elm
index 4031ec5..92355ac 100644
--- a/spec/ExampleSpec.elm
+++ b/spec/ExampleSpec.elm
@@ -23,7 +23,7 @@ view : Model -> Html.Html Msg
 view model =
   div [ onClick Set ] [ text model ]
 
-specs : Node
+specs : Node msg
 specs =
   describe "Example"
     [ it "clicking on the div should change the text"
@@ -39,4 +39,5 @@ main =
     , update = update
     , view = view
     , init = init
+    , initCmd = Cmd.none
     } specs
diff --git a/spec/HttpSpec.elm b/spec/HttpSpec.elm
index 2d1e2b1..0c7a6c1 100644
--- a/spec/HttpSpec.elm
+++ b/spec/HttpSpec.elm
@@ -77,4 +77,5 @@ main =
     , update = update
     , view = view
     , init = init
+    , initCmd = Cmd.none
     } tests
diff --git a/spec/InitHttpSpec.elm b/spec/InitHttpSpec.elm
new file mode 100644
index 0000000..7664284
--- /dev/null
+++ b/spec/InitHttpSpec.elm
@@ -0,0 +1,74 @@
+import Spec exposing (..)
+import Spec.Expect as Expect
+
+import Html.Events exposing (onClick, on, keyCode)
+import Html.Attributes exposing (class, attribute)
+import Html exposing (..)
+
+import Http
+
+import Json.Encode as JE
+import Json.Decode as JD
+
+import Task exposing (Task)
+
+type alias Model = String
+
+type Msg
+  = Request
+  | Loaded (Result Http.Error String)
+
+
+init : () -> Model
+init _ =
+  ""
+
+update : Msg -> Model -> ( Model, Cmd Msg )
+update msg model =
+  case msg of
+    Request ->
+      ( model, load )
+
+    Loaded (Err e) ->
+      ( model, Cmd.none )
+
+    Loaded (Ok result) ->
+      ( result, Cmd.none )
+
+
+load : Cmd Msg
+load =
+    Http.get "/test" JD.string |> Http.send Loaded
+
+
+view : Model -> Html.Html Msg
+view model =
+  node "test" []
+    [ div [ class "value"] [ text model ]
+   ]
+
+
+specs : Node msg
+specs =
+  describe "Spec.Steps"
+    [ http
+       [ { method = "GET"
+         , url = "/test"
+         , response = { status = 200, body = "\"new-value\"" }
+         }
+       ]
+    , describe ".setValue"
+      [ it "should set value of element on init"
+        [ assert.containsText { text = "new-value", selector = ".value" }
+        ]
+      ]
+    ]
+
+main =
+  runWithProgram
+    { init = init
+    , initCmd = load
+    , update = update
+    , view = view
+    , subscriptions = \_ -> Sub.none
+    } specs
diff --git a/spec/InitSpec.elm b/spec/InitSpec.elm
new file mode 100644
index 0000000..9e56572
--- /dev/null
+++ b/spec/InitSpec.elm
@@ -0,0 +1,61 @@
+import Spec exposing (..)
+import Spec.Expect as Expect
+
+import Html.Events exposing (onClick, on, keyCode)
+import Html.Attributes exposing (class, attribute)
+import Html exposing (..)
+
+import Json.Encode as JE
+import Json.Decode as JD
+
+import Task exposing (Task)
+
+type alias Model = String
+
+type Msg
+  = SetValue String
+
+
+init : () -> Model
+init _ =
+  ""
+
+
+update : Msg -> Model -> ( Model, Cmd Msg )
+update msg model =
+  case msg of
+    SetValue value ->
+      ( value, Cmd.none )
+
+
+view : Model -> Html.Html Msg
+view model =
+  node "test" []
+    [ div [ class "value"] [ text model ]
+   ]
+
+
+specs : Node msg
+specs =
+  describe "Spec.Steps"
+    [ describe ".setValue"
+      [ it "should set value of element on init"
+        [ assert.containsText { text = "new-value", selector = ".value" }
+        ]
+      ]
+    ]
+
+main =
+  runWithProgram
+    { init = init
+    , update = update
+    , view = view
+    , subscriptions = \_ -> Sub.none
+    , initCmd = fire (SetValue "new-value")
+    } specs
+
+
+fire : msg -> Cmd msg
+fire msg =
+    Task.perform identity (Task.succeed msg)
+
diff --git a/spec/LayoutSpec.elm b/spec/LayoutSpec.elm
index c5eb032..da5022c 100644
--- a/spec/LayoutSpec.elm
+++ b/spec/LayoutSpec.elm
@@ -50,7 +50,7 @@ view model =
     , node "test2" [] []
     ]
 
-specs : Node
+specs : Node msg
 specs =
   describe "Layout mocking"
     [ context "getBoundingClientRect"
@@ -103,6 +103,7 @@ specs =
 main =
   runWithProgram
     { init = init
+    , initCmd = Cmd.none
     , update = update
     , view = view
     , subscriptions = \_ -> Sub.none
diff --git a/spec/StepsSpec.elm b/spec/StepsSpec.elm
index 43ac983..b9ff762 100644
--- a/spec/StepsSpec.elm
+++ b/spec/StepsSpec.elm
@@ -40,7 +40,7 @@ view model =
     ]
 
 
-specs : Node
+specs : Node msg
 specs =
   describe "Spec.Steps"
     [ before [ assert.elementPresent "body" ]
@@ -91,6 +91,7 @@ specs =
 main =
   runWithProgram
     { init = init
+    , initCmd = Cmd.none
     , update = update
     , view = view
     , subscriptions = \_ -> Sub.none