Custom error types over unit

5 files changed, 15 insertions, 14 deletions

diff --git a/src/bool.gleam b/src/bool.gleam
index 89d39f0..b4e5287 100644
--- a/src/bool.gleam
+++ b/src/bool.gleam
@@ -27,16 +27,16 @@ test negate {
 
 // test compare {
 //   compare(True, True)
-//     |> expect:equal(_, Eq)
+//     |> expect:equal(_, order:Eq)
 
 //   compare(True, False)
-//     |> expect:equal(_, Gt)
+//     |> expect:equal(_, order:Gt)
 
 //   compare(False, False)
-//     |> expect:equal(_, Lt)
+//     |> expect:equal(_, order:Lt)
 
 //   compare(False, True)
-//     |> expect:equal(_, Gt)
+//     |> expect:equal(_, order:Gt)
 // }
 
 pub fn max(a, b) {
diff --git a/src/gleam__stdlib.erl b/src/gleam__stdlib.erl
index 4af95eb..25abb25 100644
--- a/src/gleam__stdlib.erl
+++ b/src/gleam__stdlib.erl
@@ -4,7 +4,6 @@
 -export([expect_equal/2, expect_not_equal/2, expect_true/1, expect_false/1, map_fetch/2,
          iodata_append/2, iodata_prepend/2, identity/1]).
 
-
 expect_equal(A, Expected) -> ?assertEqual(Expected, A).
 expect_not_equal(A, Expected) -> ?assertNotEqual(Expected, A).
 expect_true(A) -> ?assert(A).
@@ -12,7 +11,7 @@ expect_false(A) -> ?assertNot(A).
 
 map_fetch(Map, Key) ->
   case maps:find(Key, Map) of
-    error -> {error, {}};
+    error -> {error, not_found};
     OkFound -> OkFound
   end.
 
diff --git a/src/iodata.gleam b/src/iodata.gleam
index 7bdecec..2d14ed0 100644
--- a/src/iodata.gleam
+++ b/src/iodata.gleam
@@ -1,4 +1,3 @@
-import any
 import expect
 
 pub external type Iodata;
diff --git a/src/list.gleam b/src/list.gleam
index dea8a19..527ec51 100644
--- a/src/list.gleam
+++ b/src/list.gleam
@@ -1,6 +1,6 @@
 import expect
 
-pub enum Error =
+pub enum Empty =
   | Empty
 
 // Using the Erlang C BIF implementation.
diff --git a/src/map.gleam b/src/map.gleam
index a8f024f..56b4a6b 100644
--- a/src/map.gleam
+++ b/src/map.gleam
@@ -4,6 +4,9 @@ import expect
 
 pub external type Map(key, value);
 
+pub enum NotFound =
+  | NotFound
+
 pub external fn size(Map(k, v)) -> Int
   = "maps" "size"
 
@@ -41,7 +44,7 @@ test has_key {
 
   [
       {1, 0},
-    ]
+  ]
     |> from_list
     |> has_key(_, 1)
     |> expect:true
@@ -49,7 +52,7 @@ test has_key {
   [
       {4, 0},
       {1, 0},
-    ]
+  ]
     |> from_list
     |> has_key(_, 1)
     |> expect:true
@@ -91,7 +94,7 @@ test new {
 //     |> expect:equal(_, from_list([{"name", "Jane"}]))
 // }
 
-pub external fn fetch(Map(key, value), key) -> Result(a, value)
+pub external fn fetch(Map(key, value), key) -> Result(value, NotFound)
   = "gleam__stdlib" "map_fetch";
 
 test fetch {
@@ -109,9 +112,9 @@ test fetch {
     |> fetch(_, 1)
     |> expect:equal(_, Ok(1))
 
-  // map
-  //   |> fetch(_, 2)
-  //   |> expect:equal(_, Error(())
+  map
+    |> fetch(_, 2)
+    |> expect:equal(_, Error(NotFound))
 }
 
 external fn erl_put(key, value, Map(key, value)) -> Map(key, value)