From 08307aa7d2beede0235b125d67ee6e5d302fd2b7 Mon Sep 17 00:00:00 2001
From: lareii <lareii@proton.me>
Date: Wed, 25 Oct 2023 16:50:58 +0300
Subject: [PATCH] math: add sum

---
 DIRECTORY.md                 |  1 +
 math/sum.jule                |  9 +++++++++
 tests/math/package_test.jule |  1 +
 tests/math/sum_test.jule     | 10 ++++++++++
 4 files changed, 21 insertions(+)
 create mode 100644 math/sum.jule
 create mode 100644 tests/math/sum_test.jule

diff --git a/DIRECTORY.md b/DIRECTORY.md
index 2833f08..5a68a3f 100644
--- a/DIRECTORY.md
+++ b/DIRECTORY.md
@@ -7,6 +7,7 @@
   - [Max](./math/max.jule)
   - [Median](./math/median.jule)
   - [Min](./math/min.jule)
+  - [Sum](./math/sum.jule)
 
 ## Search
   - [Binary Search](./search/binary_search.jule)
diff --git a/math/sum.jule b/math/sum.jule
new file mode 100644
index 0000000..4331391
--- /dev/null
+++ b/math/sum.jule
@@ -0,0 +1,9 @@
+pub fn sum(slice: []int): int {
+    let mut total: int = 0
+
+    for _, i in slice {
+        total += i
+    }
+
+    ret total
+}
\ No newline at end of file
diff --git a/tests/math/package_test.jule b/tests/math/package_test.jule
index 4a82463..501fca8 100644
--- a/tests/math/package_test.jule
+++ b/tests/math/package_test.jule
@@ -6,4 +6,5 @@ pub fn math_package_tests(mut &tests: TestStack) {
     max_tests(tests)
     median_tests(tests)
     min_tests(tests)
+    sum_tests(tests)
 }
diff --git a/tests/math/sum_test.jule b/tests/math/sum_test.jule
new file mode 100644
index 0000000..e13149d
--- /dev/null
+++ b/tests/math/sum_test.jule
@@ -0,0 +1,10 @@
+use tests::{TestStack}
+use math::{sum}
+
+fn sum_tests(mut &tests: TestStack) {
+    let slice = [-9, 0, 1, 99, 54, 12]
+
+    tests.add("[math] sum", fn(): bool {
+        ret sum(clone(slice)) == 157
+    })
+}