From de5aff6c33e696116e65e67809ef0e7c299abe7d Mon Sep 17 00:00:00 2001
From: ee7 <45465154+ee7@users.noreply.github.com>
Date: Fri, 3 Mar 2023 14:25:43 +0100
Subject: [PATCH] exercises(collatz-conjecture): remove test for negative input
 (#209)

---
 exercises/practice/collatz-conjecture/.meta/config.json     | 3 +++
 exercises/practice/collatz-conjecture/.meta/example.zig     | 4 ++--
 exercises/practice/collatz-conjecture/.meta/tests.toml      | 1 +
 .../practice/collatz-conjecture/collatz_conjecture.zig      | 2 +-
 .../practice/collatz-conjecture/test_collatz_conjecture.zig | 6 ------
 5 files changed, 7 insertions(+), 9 deletions(-)

diff --git a/exercises/practice/collatz-conjecture/.meta/config.json b/exercises/practice/collatz-conjecture/.meta/config.json
index 8bf7738d..442e62e9 100644
--- a/exercises/practice/collatz-conjecture/.meta/config.json
+++ b/exercises/practice/collatz-conjecture/.meta/config.json
@@ -2,6 +2,9 @@
   "authors": [
     "massivelivefun"
   ],
+  "contributors": [
+    "ee7"
+  ],
   "files": {
     "solution": [
       "collatz_conjecture.zig"
diff --git a/exercises/practice/collatz-conjecture/.meta/example.zig b/exercises/practice/collatz-conjecture/.meta/example.zig
index 42698576..fc849d41 100644
--- a/exercises/practice/collatz-conjecture/.meta/example.zig
+++ b/exercises/practice/collatz-conjecture/.meta/example.zig
@@ -2,8 +2,8 @@ pub const ComputationError = error{
     IllegalArgument,
 };
 
-pub fn steps(start: isize) ComputationError!usize {
-    if (start <= 0) {
+pub fn steps(start: usize) ComputationError!usize {
+    if (start == 0) {
         return ComputationError.IllegalArgument;
     }
     var number = start;
diff --git a/exercises/practice/collatz-conjecture/.meta/tests.toml b/exercises/practice/collatz-conjecture/.meta/tests.toml
index cc34e168..45bf122e 100644
--- a/exercises/practice/collatz-conjecture/.meta/tests.toml
+++ b/exercises/practice/collatz-conjecture/.meta/tests.toml
@@ -36,3 +36,4 @@ include = false
 [ec11f479-56bc-47fd-a434-bcd7a31a7a2e]
 description = "negative value is an error"
 reimplements = "c6c795bf-a288-45e9-86a1-841359ad426d"
+include = false
diff --git a/exercises/practice/collatz-conjecture/collatz_conjecture.zig b/exercises/practice/collatz-conjecture/collatz_conjecture.zig
index e336208b..21ffc04c 100644
--- a/exercises/practice/collatz-conjecture/collatz_conjecture.zig
+++ b/exercises/practice/collatz-conjecture/collatz_conjecture.zig
@@ -1,4 +1,4 @@
-pub fn steps(number: isize) anyerror!usize {
+pub fn steps(number: usize) anyerror!usize {
     _ = number;
     @compileError("please implement the steps function");
 }
diff --git a/exercises/practice/collatz-conjecture/test_collatz_conjecture.zig b/exercises/practice/collatz-conjecture/test_collatz_conjecture.zig
index fe0e31b0..4cf1414e 100644
--- a/exercises/practice/collatz-conjecture/test_collatz_conjecture.zig
+++ b/exercises/practice/collatz-conjecture/test_collatz_conjecture.zig
@@ -33,9 +33,3 @@ test "zero is an error" {
     const actual = comptime collatz_conjecture.steps(0);
     try testing.expectError(expected, actual);
 }
-
-test "negative value is an error" {
-    const expected = ComputationError.IllegalArgument;
-    const actual = comptime collatz_conjecture.steps(-15);
-    try testing.expectError(expected, actual);
-}