elm-format + add more tests

src/Internal/Tools/Hashdict.elm

@@ -1,10 +1,10 @@
 module Internal.Tools.Hashdict exposing
     ( Hashdict
     , empty, singleton, insert, remove, removeKey
-    , isEmpty, member, memberKey, get, size
+    , isEmpty, member, memberKey, get, size, isEqual
     , keys, values, toList, fromList
     , rehash, union
-    , encode, decoder, softDecoder, isEqual
+    , encode, decoder, softDecoder
     )
 
 {-| This module abstracts the `Dict` type with one function that assigns a
@@ -150,6 +150,7 @@ insert : a -> Hashdict a -> Hashdict a
 insert v (Hashdict h) =
     Hashdict { h | values = Dict.insert (h.hash v) v h.values }
 
+
 {-| Since the Hashdict contains a hash function, the == operator does not work
 simply. Instead, you should use the isEqual operator.
 -}
@@ -157,6 +158,7 @@ isEqual : Hashdict a -> Hashdict a -> Bool
 isEqual h1 h2 =
     toList h1 == toList h2
 
+
 {-| Determine if a hashdict is empty.
 -}
 isEmpty : Hashdict a -> Bool

tests/Test/Tools/Hashdict.elm

@@ -1,22 +1,25 @@
 module Test.Tools.Hashdict exposing (..)
 
-import Test exposing (..)
+import Expect
 import Fuzz exposing (Fuzzer)
 import Internal.Tools.Hashdict as Hashdict exposing (Hashdict)
-import Test.Values.Event as TestEvent
 import Internal.Values.Event as Event
-import Json.Encode as E
 import Json.Decode as D
-import Expect
+import Json.Encode as E
+import Test exposing (..)
+import Test.Values.Event as TestEvent
+
 
 fuzzer : (a -> String) -> Fuzzer a -> Fuzzer (Hashdict a)
 fuzzer toHash fuz =
     Fuzz.map (Hashdict.fromList toHash) (Fuzz.list fuz)
 
+
 eventFuzzer : Fuzzer (Hashdict Event.Event)
 eventFuzzer =
     fuzzer .eventId TestEvent.fuzzer
 
+
 suite : Test
 suite =
     describe "Hashdict"
@@ -27,19 +30,22 @@ suite =
                     |> Expect.equal True
                     |> always
                 )
-            , fuzz TestEvent.fuzzer "Nothing is member"
+            , fuzz TestEvent.fuzzer
+                "Nothing is member"
                 (\event ->
                     Hashdict.empty .eventId
                         |> Hashdict.member event
                         |> Expect.equal False
                 )
-            , fuzz Fuzz.string "No key is member"
+            , fuzz Fuzz.string
+                "No key is member"
                 (\key ->
                     Hashdict.empty identity
                         |> Hashdict.memberKey key
                         |> Expect.equal False
                 )
-            , fuzz Fuzz.string "Get gets Nothing"
+            , fuzz Fuzz.string
+                "Get gets Nothing"
                 (\key ->
                     Hashdict.empty identity
                         |> Hashdict.get key
@@ -83,7 +89,8 @@ suite =
                     |> Expect.equal True
                     |> always
                 )
-            , fuzz (Fuzz.intRange 0 10) "JSON encode -> JSON decode"
+            , fuzz (Fuzz.intRange 0 10)
+                "JSON encode -> JSON decode"
                 (\indent ->
                     Hashdict.empty identity
                         |> Hashdict.encode E.string
@@ -93,8 +100,68 @@ suite =
                         |> Expect.equal (Ok True)
                 )
             ]
+        , describe "singleton"
+            [ fuzz TestEvent.fuzzer
+                "singletong = empty + insert"
+                (\event ->
+                    Hashdict.empty .eventId
+                        |> Hashdict.insert event
+                        |> Hashdict.isEqual (Hashdict.singleton .eventId event)
+                        |> Expect.equal True
+                )
+            , fuzz TestEvent.fuzzer
+                "Singleton - event = empty"
+                (\event ->
+                    Hashdict.singleton .eventId event
+                        |> Hashdict.remove event
+                        |> Hashdict.isEqual (Hashdict.empty .sender)
+                        |> Expect.equal True
+                )
+            , fuzz TestEvent.fuzzer
+                "Singletong - event (key) = empty"
+                (\event ->
+                    Hashdict.singleton .eventId event
+                        |> Hashdict.removeKey event.eventId
+                        |> Hashdict.isEqual (Hashdict.empty .sender)
+                        |> Expect.equal True
+                )
+            , fuzz TestEvent.fuzzer
+                "not isEmpty"
+                (\event ->
+                    Hashdict.singleton .eventId event
+                        |> Hashdict.isEmpty
+                        |> Expect.equal False
+                )
+            , fuzz TestEvent.fuzzer
+                "member"
+                (\event ->
+                    Hashdict.singleton .eventId event
+                        |> Hashdict.member event
+                        |> Expect.equal True
+                )
+            , fuzz TestEvent.fuzzer
+                "memberKey"
+                (\event ->
+                    Hashdict.singleton .eventId event
+                        |> Hashdict.memberKey event.eventId
+                        |> Expect.equal True
+                )
+            , fuzz TestEvent.fuzzer
+                "False memberKey"
+                (\event ->
+                    if event.eventId == event.roomId then
+                        Expect.pass
+
+                    else
+                        Hashdict.singleton .eventId event
+                            |> Hashdict.memberKey event.roomId
+                            |> Expect.equal False
+                )
+            ]
         , describe "JSON"
-            [ fuzz2 eventFuzzer (Fuzz.intRange 0 10) "JSON encode -> JSON decode"
+            [ fuzz2 eventFuzzer
+                (Fuzz.intRange 0 10)
+                "JSON encode -> JSON decode"
                 (\hashdict indent ->
                     hashdict
                         |> Hashdict.encode Event.encode