From 5111c34764e83261c63271534b714bacfaf00264 Mon Sep 17 00:00:00 2001
From: Mona-Eltantawy <karamrafat@gmail.com>
Date: Sun, 22 Mar 2026 07:04:32 +0000
Subject: [PATCH 1/9] Created New branch for Sprint 1.

---
 Sprint-1/fix/median.js       | 27 +++++++++++++++++++++++++++
 Sprint-1/implement/dedupe.js |  5 ++++-
 2 files changed, 31 insertions(+), 1 deletion(-)

diff --git a/Sprint-1/fix/median.js b/Sprint-1/fix/median.js
index b22590bc6..4af63070c 100644
--- a/Sprint-1/fix/median.js
+++ b/Sprint-1/fix/median.js
@@ -11,4 +11,31 @@ function calculateMedian(list) {
   return median;
 }
 
+//function calculateMedian(list) {
+  // Check if input is an array
+  if (!Array.isArray(list)) return null;
+
+  // Filter only valid numbers
+  const numbers = list.filter(
+    (item) => typeof item === "number" && !isNaN(item)
+  );
+
+  // If no valid numbers, return null
+  if (numbers.length === 0) return null;
+
+  // Sort numbers (without mutating original array)
+  const sorted = [...numbers].sort((a, b) => a - b);
+
+  const middle = Math.floor(sorted.length / 2);
+
+  // Even length → average of two middle values
+  if (sorted.length % 2 === 0) {
+    return (sorted[middle - 1] + sorted[middle]) / 2;
+  }
+
+  // Odd length → middle value
+  return sorted[middle];
+}
+
+module.exports = calculateMedian;
 module.exports = calculateMedian;
diff --git a/Sprint-1/implement/dedupe.js b/Sprint-1/implement/dedupe.js
index 781e8718a..4a66ee07a 100644
--- a/Sprint-1/implement/dedupe.js
+++ b/Sprint-1/implement/dedupe.js
@@ -1 +1,4 @@
-function dedupe() {}
+function dedupe(arr) {
+    const set = new Set(arr);
+    return [...set];
+}

From a42c61ec6ee847689909fdb4596bbcf1c7beaf9a Mon Sep 17 00:00:00 2001
From: Mona-Eltantawy <karamrafat@gmail.com>
Date: Sun, 22 Mar 2026 07:06:31 +0000
Subject: [PATCH 2/9] I imlemented a dedupe function.

---
 Sprint-1/implement/dedupe.js | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Sprint-1/implement/dedupe.js b/Sprint-1/implement/dedupe.js
index 4a66ee07a..60042ed8f 100644
--- a/Sprint-1/implement/dedupe.js
+++ b/Sprint-1/implement/dedupe.js
@@ -2,3 +2,4 @@ function dedupe(arr) {
     const set = new Set(arr);
     return [...set];
 }
+module.exports = dedupe;
\ No newline at end of file

From 3d8c9020506ec1ca611c2417abfed10d7041eb67 Mon Sep 17 00:00:00 2001
From: Mona-Eltantawy <karamrafat@gmail.com>
Date: Sun, 22 Mar 2026 07:34:32 +0000
Subject: [PATCH 3/9] I created different test cases for dedupe empty array,
 arry with dublications and to return the same values if the array has no
 dublications.

---
 Sprint-1/implement/dedupe.test.js | 24 +++++++++++++++++++++++-
 1 file changed, 23 insertions(+), 1 deletion(-)

diff --git a/Sprint-1/implement/dedupe.test.js b/Sprint-1/implement/dedupe.test.js
index d7c8e3d8e..4132b6c7c 100644
--- a/Sprint-1/implement/dedupe.test.js
+++ b/Sprint-1/implement/dedupe.test.js
@@ -16,13 +16,35 @@ E.g. dedupe([1, 2, 1]) returns [1, 2]
 // Given an empty array
 // When passed to the dedupe function
 // Then it should return an empty array
-test.todo("given an empty array, it returns an empty array");
+describe('dedupe', () => {
+
+  test("given an empty array, it returns an empty array", () => {
+    expect(dedupe([])).toEqual([]);
+  });
+});
 
 // Given an array with no duplicates
 // When passed to the dedupe function
 // Then it should return a copy of the original array
 
+  test("given an array with no duplication, it returns a copy of the array", () => {
+    const input = [1, 2, 3];
+    const result = dedupe(input);
+
+    expect(result).toEqual([1, 2, 3]);
+    expect(result).not.toBe(input);
+  });
 // Given an array of strings or numbers
 // When passed to the dedupe function
 // Then it should return a new array with duplicates removed while preserving the 
 // first occurrence of each element from the original array.
+  test("removes duplicates and preserves first occurrence", () => {
+    expect(dedupe(['a','a','a','b','b','b','c']))
+      .toEqual(['a','b','c']);
+
+    expect(dedupe([5,1,1,2,3,2,5,8]))
+      .toEqual([5,1,2,3,8]);
+
+    expect(dedupe([1,2,1]))
+      .toEqual([1,2]);
+  });
\ No newline at end of file

From 5728131ff31b1fdbe1542d6a9ae8af3f9f1af828 Mon Sep 17 00:00:00 2001
From: Mona-Eltantawy <karamrafat@gmail.com>
Date: Sun, 22 Mar 2026 08:00:42 +0000
Subject: [PATCH 4/9] implemented a find max function.

---
 Sprint-1/implement/max.js | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/Sprint-1/implement/max.js b/Sprint-1/implement/max.js
index 6dd76378e..e2a43db94 100644
--- a/Sprint-1/implement/max.js
+++ b/Sprint-1/implement/max.js
@@ -1,4 +1,6 @@
-function findMax(elements) {
+function findMax(arr) {
+    return arr.filter(item=> typeof item === 'number')
+    .reduce((acc, num) =>(num > acc ? num : acc) , -Infinity);
 }
 
 module.exports = findMax;

From 283192721e66c539e7f012c91e282a581494082e Mon Sep 17 00:00:00 2001
From: Mona-Eltantawy <karamrafat@gmail.com>
Date: Sun, 22 Mar 2026 08:08:31 +0000
Subject: [PATCH 5/9] I wrote diffrent test cases to find the max in cases for
 empty array , arry with nigative and positive number, arry with non numerical
 values and arry with decimels.

---
 Sprint-1/implement/max.test.js | 27 +++++++++++++++++++++++----
 1 file changed, 23 insertions(+), 4 deletions(-)

diff --git a/Sprint-1/implement/max.test.js b/Sprint-1/implement/max.test.js
index 82f18fd88..6401794d7 100644
--- a/Sprint-1/implement/max.test.js
+++ b/Sprint-1/implement/max.test.js
@@ -16,28 +16,47 @@ const findMax = require("./max.js");
 // When passed to the max function
 // Then it should return -Infinity
 // Delete this test.todo and replace it with a test.
-test.todo("given an empty array, returns -Infinity");
-
+describe ('max function', ()=>  {
+    test ("given an empty array, returns -Infinity", () => {
+        expect(findMax([])).toBe(-Infinity)
+    });
+})
 // Given an array with one number
 // When passed to the max function
 // Then it should return that number
+  test("given an array with one number, returns that number", () => {
+    expect(findMax([42])).toBe(42);
+  });
 
 // Given an array with both positive and negative numbers
 // When passed to the max function
 // Then it should return the largest number overall
+test("array with both positive and negative numbers, returns the largest", () => {
+    expect(findMax([-10, 0, 5, 20, -5])).toBe(20);
+  });
 
 // Given an array with just negative numbers
 // When passed to the max function
 // Then it should return the closest one to zero
-
+  test("array with only negative numbers, returns the closest to zero", () => {
+    expect(findMax([-10, -5, -20])).toBe(-5);
+  });
 // Given an array with decimal numbers
 // When passed to the max function
 // Then it should return the largest decimal number
+ test("array with decimal numbers, returns the largest decimal", () => {
+    expect(findMax([1.5, 2.7, 0.3])).toBe(2.7);
+  });
 
 // Given an array with non-number values
 // When passed to the max function
 // Then it should return the max and ignore non-numeric values
-
+ test("array with non-number values, ignores non-numeric and returns max number", () => {
+    expect(findMax(['hey', 10, 'hi', 60, 10])).toBe(60);
+  });
 // Given an array with only non-number values
 // When passed to the max function
 // Then it should return the least surprising value given how it behaves for all other inputs
+ test("array with only non-number values, returns -Infinity", () => {
+    expect(findMax(['a', 'b', null, {}])).toBe(-Infinity);
+  });

From a81d757612e64ea85e9cdf7b1fce181d0cdc6a02 Mon Sep 17 00:00:00 2001
From: Mona-Eltantawy <karamrafat@gmail.com>
Date: Mon, 23 Mar 2026 12:19:24 +0000
Subject: [PATCH 6/9] I implemented a function that gets the sum fo the number
 vlaues in an array.

---
 Sprint-1/implement/sum.js | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/Sprint-1/implement/sum.js b/Sprint-1/implement/sum.js
index 9062aafe3..091623377 100644
--- a/Sprint-1/implement/sum.js
+++ b/Sprint-1/implement/sum.js
@@ -1,4 +1,8 @@
-function sum(elements) {
+function sum(arr) {
+    
+    return arr.filter(item=> typeof item === 'number')
+    .reduce((acc, num) => acc + num , 0);
 }
 
+
 module.exports = sum;

From 15fa2b2024fa877e83d7e545a15918f2bc19900a Mon Sep 17 00:00:00 2001
From: Mona-Eltantawy <karamrafat@gmail.com>
Date: Mon, 23 Mar 2026 12:37:23 +0000
Subject: [PATCH 7/9] I wrote different test cases for the sum function.

---
 Sprint-1/implement/sum.test.js | 24 ++++++++++++++++++++----
 1 file changed, 20 insertions(+), 4 deletions(-)

diff --git a/Sprint-1/implement/sum.test.js b/Sprint-1/implement/sum.test.js
index dd0a090ca..0e29eab83 100644
--- a/Sprint-1/implement/sum.test.js
+++ b/Sprint-1/implement/sum.test.js
@@ -13,24 +13,40 @@ const sum = require("./sum.js");
 // Given an empty array
 // When passed to the sum function
 // Then it should return 0
-test.todo("given an empty array, returns 0")
-
+describe ('sum function', ()=>  {
+    test ("given an empty array, returns 0", () => {
+        expect(sum ([])).toEqual(0)
+    });
+});
 // Given an array with just one number
 // When passed to the sum function
 // Then it should return that number
+  test ("given an array with one number, returns the same number", () => {
+        expect(sum ([1])).toEqual(1)
+    });
 
 // Given an array containing negative numbers
 // When passed to the sum function
 // Then it should still return the correct total sum
+test ("given an array with negative numbers, returns the correct total", () => {
+        expect(sum ([1,2, 3,-2])).toEqual(4)
+    });
 
 // Given an array with decimal/float numbers
 // When passed to the sum function
 // Then it should return the correct total sum
-
+test ("given an array with decimal/float number, returns the correct total sum", () => {
+        expect(sum ([1,2,3,1.5,2.1])).toEqual(7.6)
+    });
 // Given an array containing non-number values
 // When passed to the sum function
 // Then it should ignore the non-numerical values and return the sum of the numerical elements
-
+test ("given an array with non-number values , returns the sum of the numerical elements", () => {
+        expect(sum ([1, 'h', 3, 'sss', 5])).toEqual(9)
+    });
 // Given an array with only non-number values
 // When passed to the sum function
 // Then it should return the least surprising value given how it behaves for all other inputs
+test ("given an array with only non-number values , returns 0 ", () => {
+        expect(sum (['m', 'h', 'sss', 'hhh'])).toEqual(0)
+    });

From 8c070749321499b3a237edfec08579203ce20de9 Mon Sep 17 00:00:00 2001
From: Mona-Eltantawy <karamrafat@gmail.com>
Date: Mon, 23 Mar 2026 12:45:13 +0000
Subject: [PATCH 8/9] re edited the expected output for the decimal/float
 numbers test.

---
 Sprint-1/implement/sum.test.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Sprint-1/implement/sum.test.js b/Sprint-1/implement/sum.test.js
index 0e29eab83..adbaa4d2e 100644
--- a/Sprint-1/implement/sum.test.js
+++ b/Sprint-1/implement/sum.test.js
@@ -36,7 +36,7 @@ test ("given an array with negative numbers, returns the correct total", () => {
 // When passed to the sum function
 // Then it should return the correct total sum
 test ("given an array with decimal/float number, returns the correct total sum", () => {
-        expect(sum ([1,2,3,1.5,2.1])).toEqual(7.6)
+        expect(sum ([1, 2, 3, 1.5, 2.1])).toEqual(9.6)
     });
 // Given an array containing non-number values
 // When passed to the sum function

From 07038412dd9b6d9be341432eff2b5ac2346ce66f Mon Sep 17 00:00:00 2001
From: Mona-Eltantawy <karamrafat@gmail.com>
Date: Mon, 23 Mar 2026 12:51:38 +0000
Subject: [PATCH 9/9] I fixed the implementation of the calculateMedian
 function and run the test and get all tests passed.

---
 Sprint-1/fix/median.js            | 15 +++--------
 Sprint-1/fix/median.test.js       | 22 ++++++++++++----
 Sprint-1/implement/dedupe.js      |  6 ++---
 Sprint-1/implement/dedupe.test.js | 30 +++++++++------------
 Sprint-1/implement/max.js         |  5 ++--
 Sprint-1/implement/max.test.js    | 44 +++++++++++++++----------------
 Sprint-1/implement/sum.js         |  7 +++--
 Sprint-1/implement/sum.test.js    | 38 +++++++++++++-------------
 8 files changed, 84 insertions(+), 83 deletions(-)

diff --git a/Sprint-1/fix/median.js b/Sprint-1/fix/median.js
index 4af63070c..72c54dcf3 100644
--- a/Sprint-1/fix/median.js
+++ b/Sprint-1/fix/median.js
@@ -6,36 +6,29 @@
 // or 'list' has mixed values (the function is expected to sort only numbers).
 
 function calculateMedian(list) {
-  const middleIndex = Math.floor(list.length / 2);
-  const median = list.splice(middleIndex, 1)[0];
-  return median;
-}
-
-//function calculateMedian(list) {
   // Check if input is an array
   if (!Array.isArray(list)) return null;
 
   // Filter only valid numbers
   const numbers = list.filter(
-    (item) => typeof item === "number" && !isNaN(item)
+    (item) => typeof item === "number" && Number.isFinite(item)
   );
 
   // If no valid numbers, return null
   if (numbers.length === 0) return null;
 
-  // Sort numbers (without mutating original array)
+  // Sort without mutating original array
   const sorted = [...numbers].sort((a, b) => a - b);
 
   const middle = Math.floor(sorted.length / 2);
 
-  // Even length → average of two middle values
+  // Even length
   if (sorted.length % 2 === 0) {
     return (sorted[middle - 1] + sorted[middle]) / 2;
   }
 
-  // Odd length → middle value
+  // Odd length
   return sorted[middle];
 }
 
 module.exports = calculateMedian;
-module.exports = calculateMedian;
diff --git a/Sprint-1/fix/median.test.js b/Sprint-1/fix/median.test.js
index 21da654d7..c262c3776 100644
--- a/Sprint-1/fix/median.test.js
+++ b/Sprint-1/fix/median.test.js
@@ -13,7 +13,8 @@ describe("calculateMedian", () => {
     { input: [1, 2, 3, 4], expected: 2.5 },
     { input: [1, 2, 3, 4, 5, 6], expected: 3.5 },
   ].forEach(({ input, expected }) =>
-    it(`returns the median for [${input}]`, () => expect(calculateMedian(input)).toEqual(expected))
+    it(`returns the median for [${input}]`, () =>
+      expect(calculateMedian(input)).toEqual(expected))
   );
 
   [
@@ -24,7 +25,8 @@ describe("calculateMedian", () => {
     { input: [110, 20, 0], expected: 20 },
     { input: [6, -2, 2, 12, 14], expected: 6 },
   ].forEach(({ input, expected }) =>
-    it(`returns the correct median for unsorted array [${input}]`, () => expect(calculateMedian(input)).toEqual(expected))
+    it(`returns the correct median for unsorted array [${input}]`, () =>
+      expect(calculateMedian(input)).toEqual(expected))
   );
 
   it("doesn't modify the input array [3, 1, 2]", () => {
@@ -33,8 +35,17 @@ describe("calculateMedian", () => {
     expect(list).toEqual([3, 1, 2]);
   });
 
-  [ 'not an array', 123, null, undefined, {}, [], ["apple", null, undefined] ].forEach(val =>
-    it(`returns null for non-numeric array (${val})`, () => expect(calculateMedian(val)).toBe(null))
+  [
+    "not an array",
+    123,
+    null,
+    undefined,
+    {},
+    [],
+    ["apple", null, undefined],
+  ].forEach((val) =>
+    it(`returns null for non-numeric array (${val})`, () =>
+      expect(calculateMedian(val)).toBe(null))
   );
 
   [
@@ -45,6 +56,7 @@ describe("calculateMedian", () => {
     { input: [3, "apple", 1, null, 2, undefined, 4], expected: 2.5 },
     { input: ["banana", 5, 3, "apple", 1, 4, 2], expected: 3 },
   ].forEach(({ input, expected }) =>
-    it(`filters out non-numeric values and calculates the median for [${input}]`, () => expect(calculateMedian(input)).toEqual(expected))
+    it(`filters out non-numeric values and calculates the median for [${input}]`, () =>
+      expect(calculateMedian(input)).toEqual(expected))
   );
 });
diff --git a/Sprint-1/implement/dedupe.js b/Sprint-1/implement/dedupe.js
index 60042ed8f..3f15ede2b 100644
--- a/Sprint-1/implement/dedupe.js
+++ b/Sprint-1/implement/dedupe.js
@@ -1,5 +1,5 @@
 function dedupe(arr) {
-    const set = new Set(arr);
-    return [...set];
+  const set = new Set(arr);
+  return [...set];
 }
-module.exports = dedupe;
\ No newline at end of file
+module.exports = dedupe;
diff --git a/Sprint-1/implement/dedupe.test.js b/Sprint-1/implement/dedupe.test.js
index 4132b6c7c..7d0ab92a9 100644
--- a/Sprint-1/implement/dedupe.test.js
+++ b/Sprint-1/implement/dedupe.test.js
@@ -16,8 +16,7 @@ E.g. dedupe([1, 2, 1]) returns [1, 2]
 // Given an empty array
 // When passed to the dedupe function
 // Then it should return an empty array
-describe('dedupe', () => {
-
+describe("dedupe", () => {
   test("given an empty array, it returns an empty array", () => {
     expect(dedupe([])).toEqual([]);
   });
@@ -27,24 +26,21 @@ describe('dedupe', () => {
 // When passed to the dedupe function
 // Then it should return a copy of the original array
 
-  test("given an array with no duplication, it returns a copy of the array", () => {
-    const input = [1, 2, 3];
-    const result = dedupe(input);
+test("given an array with no duplication, it returns a copy of the array", () => {
+  const input = [1, 2, 3];
+  const result = dedupe(input);
 
-    expect(result).toEqual([1, 2, 3]);
-    expect(result).not.toBe(input);
-  });
+  expect(result).toEqual([1, 2, 3]);
+  expect(result).not.toBe(input);
+});
 // Given an array of strings or numbers
 // When passed to the dedupe function
-// Then it should return a new array with duplicates removed while preserving the 
+// Then it should return a new array with duplicates removed while preserving the
 // first occurrence of each element from the original array.
-  test("removes duplicates and preserves first occurrence", () => {
-    expect(dedupe(['a','a','a','b','b','b','c']))
-      .toEqual(['a','b','c']);
+test("removes duplicates and preserves first occurrence", () => {
+  expect(dedupe(["a", "a", "a", "b", "b", "b", "c"])).toEqual(["a", "b", "c"]);
 
-    expect(dedupe([5,1,1,2,3,2,5,8]))
-      .toEqual([5,1,2,3,8]);
+  expect(dedupe([5, 1, 1, 2, 3, 2, 5, 8])).toEqual([5, 1, 2, 3, 8]);
 
-    expect(dedupe([1,2,1]))
-      .toEqual([1,2]);
-  });
\ No newline at end of file
+  expect(dedupe([1, 2, 1])).toEqual([1, 2]);
+});
diff --git a/Sprint-1/implement/max.js b/Sprint-1/implement/max.js
index e2a43db94..add7b7693 100644
--- a/Sprint-1/implement/max.js
+++ b/Sprint-1/implement/max.js
@@ -1,6 +1,7 @@
 function findMax(arr) {
-    return arr.filter(item=> typeof item === 'number')
-    .reduce((acc, num) =>(num > acc ? num : acc) , -Infinity);
+  return arr
+    .filter((item) => typeof item === "number")
+    .reduce((acc, num) => (num > acc ? num : acc), -Infinity);
 }
 
 module.exports = findMax;
diff --git a/Sprint-1/implement/max.test.js b/Sprint-1/implement/max.test.js
index 6401794d7..d349d0805 100644
--- a/Sprint-1/implement/max.test.js
+++ b/Sprint-1/implement/max.test.js
@@ -16,47 +16,47 @@ const findMax = require("./max.js");
 // When passed to the max function
 // Then it should return -Infinity
 // Delete this test.todo and replace it with a test.
-describe ('max function', ()=>  {
-    test ("given an empty array, returns -Infinity", () => {
-        expect(findMax([])).toBe(-Infinity)
-    });
-})
+describe("max function", () => {
+  test("given an empty array, returns -Infinity", () => {
+    expect(findMax([])).toBe(-Infinity);
+  });
+});
 // Given an array with one number
 // When passed to the max function
 // Then it should return that number
-  test("given an array with one number, returns that number", () => {
-    expect(findMax([42])).toBe(42);
-  });
+test("given an array with one number, returns that number", () => {
+  expect(findMax([42])).toBe(42);
+});
 
 // Given an array with both positive and negative numbers
 // When passed to the max function
 // Then it should return the largest number overall
 test("array with both positive and negative numbers, returns the largest", () => {
-    expect(findMax([-10, 0, 5, 20, -5])).toBe(20);
-  });
+  expect(findMax([-10, 0, 5, 20, -5])).toBe(20);
+});
 
 // Given an array with just negative numbers
 // When passed to the max function
 // Then it should return the closest one to zero
-  test("array with only negative numbers, returns the closest to zero", () => {
-    expect(findMax([-10, -5, -20])).toBe(-5);
-  });
+test("array with only negative numbers, returns the closest to zero", () => {
+  expect(findMax([-10, -5, -20])).toBe(-5);
+});
 // Given an array with decimal numbers
 // When passed to the max function
 // Then it should return the largest decimal number
- test("array with decimal numbers, returns the largest decimal", () => {
-    expect(findMax([1.5, 2.7, 0.3])).toBe(2.7);
-  });
+test("array with decimal numbers, returns the largest decimal", () => {
+  expect(findMax([1.5, 2.7, 0.3])).toBe(2.7);
+});
 
 // Given an array with non-number values
 // When passed to the max function
 // Then it should return the max and ignore non-numeric values
- test("array with non-number values, ignores non-numeric and returns max number", () => {
-    expect(findMax(['hey', 10, 'hi', 60, 10])).toBe(60);
-  });
+test("array with non-number values, ignores non-numeric and returns max number", () => {
+  expect(findMax(["hey", 10, "hi", 60, 10])).toBe(60);
+});
 // Given an array with only non-number values
 // When passed to the max function
 // Then it should return the least surprising value given how it behaves for all other inputs
- test("array with only non-number values, returns -Infinity", () => {
-    expect(findMax(['a', 'b', null, {}])).toBe(-Infinity);
-  });
+test("array with only non-number values, returns -Infinity", () => {
+  expect(findMax(["a", "b", null, {}])).toBe(-Infinity);
+});
diff --git a/Sprint-1/implement/sum.js b/Sprint-1/implement/sum.js
index 091623377..462df7462 100644
--- a/Sprint-1/implement/sum.js
+++ b/Sprint-1/implement/sum.js
@@ -1,8 +1,7 @@
 function sum(arr) {
-    
-    return arr.filter(item=> typeof item === 'number')
-    .reduce((acc, num) => acc + num , 0);
+  return arr
+    .filter((item) => typeof item === "number")
+    .reduce((acc, num) => acc + num, 0);
 }
 
-
 module.exports = sum;
diff --git a/Sprint-1/implement/sum.test.js b/Sprint-1/implement/sum.test.js
index adbaa4d2e..f472c9a30 100644
--- a/Sprint-1/implement/sum.test.js
+++ b/Sprint-1/implement/sum.test.js
@@ -13,40 +13,40 @@ const sum = require("./sum.js");
 // Given an empty array
 // When passed to the sum function
 // Then it should return 0
-describe ('sum function', ()=>  {
-    test ("given an empty array, returns 0", () => {
-        expect(sum ([])).toEqual(0)
-    });
+describe("sum function", () => {
+  test("given an empty array, returns 0", () => {
+    expect(sum([])).toEqual(0);
+  });
 });
 // Given an array with just one number
 // When passed to the sum function
 // Then it should return that number
-  test ("given an array with one number, returns the same number", () => {
-        expect(sum ([1])).toEqual(1)
-    });
+test("given an array with one number, returns the same number", () => {
+  expect(sum([1])).toEqual(1);
+});
 
 // Given an array containing negative numbers
 // When passed to the sum function
 // Then it should still return the correct total sum
-test ("given an array with negative numbers, returns the correct total", () => {
-        expect(sum ([1,2, 3,-2])).toEqual(4)
-    });
+test("given an array with negative numbers, returns the correct total", () => {
+  expect(sum([1, 2, 3, -2])).toEqual(4);
+});
 
 // Given an array with decimal/float numbers
 // When passed to the sum function
 // Then it should return the correct total sum
-test ("given an array with decimal/float number, returns the correct total sum", () => {
-        expect(sum ([1, 2, 3, 1.5, 2.1])).toEqual(9.6)
-    });
+test("given an array with decimal/float number, returns the correct total sum", () => {
+  expect(sum([1, 2, 3, 1.5, 2.1])).toEqual(9.6);
+});
 // Given an array containing non-number values
 // When passed to the sum function
 // Then it should ignore the non-numerical values and return the sum of the numerical elements
-test ("given an array with non-number values , returns the sum of the numerical elements", () => {
-        expect(sum ([1, 'h', 3, 'sss', 5])).toEqual(9)
-    });
+test("given an array with non-number values , returns the sum of the numerical elements", () => {
+  expect(sum([1, "h", 3, "sss", 5])).toEqual(9);
+});
 // Given an array with only non-number values
 // When passed to the sum function
 // Then it should return the least surprising value given how it behaves for all other inputs
-test ("given an array with only non-number values , returns 0 ", () => {
-        expect(sum (['m', 'h', 'sss', 'hhh'])).toEqual(0)
-    });
+test("given an array with only non-number values , returns 0 ", () => {
+  expect(sum(["m", "h", "sss", "hhh"])).toEqual(0);
+});