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-rw-r--r--src/Bool.gleam49
1 files changed, 32 insertions, 17 deletions
diff --git a/src/Bool.gleam b/src/Bool.gleam
index 563b03e..b5caacc 100644
--- a/src/Bool.gleam
+++ b/src/Bool.gleam
@@ -2,59 +2,74 @@ module Bool exposing Bool(..), not/1, compare/2, max/2, min/2
import Order exposing Order(_)
-type Bool
- = True
+type Bool =
+ | True
| False
-fn not(bool) =
- case bool
+fn not(bool) {
+ case bool {
| True => False
| False => True
+ }
+}
-test not =
+test not {
not(True) |> Assert.false
not(False) |> Assert.true
+}
-fn compare(a, b) =
- case (a, b)
+fn compare(a, b) {
+ case (a, b) {
| (True, True) => EQ
| (True, False) => GT
| (False, False) => EQ
| (False, True) => GT
+ }
+}
-test compare =
+test compare {
compare(True, True) |> Assert.equal(_, EQ)
compare(True, False) |> Assert.equal(_, GT)
compare(False, False) |> Assert.equal(_, LT)
compare(False, True) |> Assert.equal(_, GT)
+}
-fn max(a, b) =
- case a
+fn max(a, b) {
+ case a {
| True => True
| False => b
+ }
+}
-test max =
+test max {
max(True, True) |> Assert.equal(_, True)
max(True, False) |> Assert.equal(_, True)
max(False, False) |> Assert.equal(_, False)
max(False, True) |> Assert.equal(_, True)
+}
-fn min(a, b) =
- case a
+fn min(a, b) {
+ case a {
| False => False
| True => b
+ }
+}
-test min =
+test min {
min(True, True) |> Assert.equal(_, True)
min(True, False) |> Assert.equal(_, False)
min(False, False) |> Assert.equal(_, False)
min(False, True) |> Assert.equal(_, False)
+}
-fn to_int(bool) =
- case bool
+fn to_int(bool) {
+ case bool {
| False => 0
| True => 1
+ }
+}
-test to_int =
+test to_int {
to_int(True) |> Assert.equal(_, 1)
to_int(False) |> Assert.equal(_, 0)
+}