Upgrade part8 and part9 to latest elm-test

part9/README.md

@@ -21,25 +21,19 @@ elm-live Main.elm --open --output=elm.js
 
 ## Running Tests
 
-First do this:
-
-```bash
-cd test
-elm-package install
-```
-
-Then do either (or both!) of the following:
+Do either (or both!) of the following:
 
 #### Running tests on the command line
 
 ```bash
-elm-test NodeRunner.elm
+elm-test
 ```
 
 #### Running tests in a browser
 
 ```bash
+cd tests
 elm-reactor
 ```
 
-Then visit [localhost:8000](http://localhost:8000) and choose `Html.elm`.
+Then visit [localhost:8000](http://localhost:8000) and choose `HtmlRunner.elm`.

part9/tests/HtmlRunner.elm

@@ -0,0 +1,16 @@
+module HtmlRunner exposing (..)
+
+import Tests
+import Test.Runner.Html as Runner
+
+
+-- To run this:
+--
+-- cd into part8/test
+-- elm-reactor
+-- navigate to HtmlRunner.elm
+
+
+main : Program Never
+main =
+    Runner.run Tests.all

part9/tests/Main.elm

@@ -0,0 +1,18 @@
+port module Main exposing (..)
+
+import Tests
+import Test.Runner.Node as Runner
+import Json.Decode exposing (Value)
+
+
+-- To run this:
+--
+-- elm-test
+
+
+main : Program Value
+main =
+    Runner.run emit Tests.all
+
+
+port emit : ( String, Value ) -> Cmd msg

part9/tests/Tests.elm

@@ -0,0 +1,70 @@
+module Tests exposing (..)
+
+import Test exposing (..)
+import Fuzz exposing (..)
+import Expect exposing (Expectation)
+import ElmHub exposing (responseDecoder)
+import Json.Decode exposing (decodeString, Value)
+import String
+
+
+all : Test
+all =
+    describe "GitHub Response Decoder"
+        [ test "it results in an Err for invalid JSON"
+            <| \() ->
+                let
+                    json =
+                        """{ "pizza": [] }"""
+
+                    isErrorResult result =
+                        -- TODO return True if the given Result is an Err of some sort,
+                        -- and False if it is an Ok of some sort.
+                        --
+                        -- Result docs: http://package.elm-lang.org/packages/elm-lang/core/4.0.1/Result
+                        False
+                in
+                    json
+                        |> decodeString responseDecoder
+                        |> isErrorResult
+                        |> Expect.true "Expected decoding an invalid response to return an Err."
+        , test "it successfully decodes a valid response"
+            <| \() ->
+                """{ "items": [
+                    /* TODO: put JSON here! */
+                 ] }"""
+                    |> decodeString responseDecoder
+                    |> Expect.equal
+                        (Ok
+                            [ { id = 5, name = "foo", stars = 42 }
+                            , { id = 3, name = "bar", stars = 77 }
+                            ]
+                        )
+        , test "it decodes one SearchResult for each 'item' in the JSON"
+            <| \() ->
+                let
+                    -- TODO convert this to a fuzz test that generates a random
+                    -- list of ids instead of this hardcoded list of three ids.
+                    --
+                    -- fuzz test docs: http://package.elm-lang.org/packages/project-fuzzball/test/2.0.1/Test#fuzz
+                    -- Fuzzer docs: http://package.elm-lang.org/packages/project-fuzzball/test/2.0.1/Fuzz
+                    ids =
+                        [ 12, 5, 76 ]
+
+                    jsonFromId id =
+                        """{"id": """ ++ toString id ++ """, "full_name": "foo", "stargazers_count": 42}"""
+
+                    jsonItems =
+                        String.join ", " (List.map jsonFromId ids)
+
+                    json =
+                        """{ "items": [""" ++ jsonItems ++ """] }"""
+                in
+                    case decodeString responseDecoder json of
+                        Ok results ->
+                            List.length results
+                                |> Expect.equal (List.length ids)
+
+                        Err err ->
+                            Expect.fail ("JSON decoding failed unexpectedly: " ++ err)
+        ]

part9/tests/elm-package.json

@@ -0,0 +1,21 @@
+{
+    "version": "1.0.0",
+    "summary": "Like GitHub, but for Elm stuff.",
+    "repository": "https://github.com/rtfeldman/elm-workshop.git",
+    "license": "BSD-3-Clause",
+    "source-directories": [
+        ".",
+        ".."
+    ],
+    "exposed-modules": [],
+    "dependencies": {
+        "NoRedInk/elm-decode-pipeline": "1.1.2 <= v < 2.0.0",
+        "elm-community/elm-test": "2.0.1 <= v < 3.0.0",
+        "elm-lang/core": "4.0.1 <= v < 5.0.0",
+        "elm-lang/html": "1.0.0 <= v < 2.0.0",
+        "evancz/elm-http": "3.0.1 <= v < 4.0.0",
+        "rtfeldman/html-test-runner": "1.0.0 <= v < 2.0.0",
+        "rtfeldman/node-test-runner": "2.0.0 <= v < 3.0.0"
+    },
+    "elm-version": "0.17.0 <= v < 0.18.0"
+}