From e275bbf89be14c3cf561b8010f71e8f522acdb2e Mon Sep 17 00:00:00 2001
From: Fatima Rouchi <fatima.aouil@hotmail.com>
Date: Thu, 15 Oct 2026 21:50:58 +0100
Subject: [PATCH 01/20] add more tests

---
 .../1-get-angle-type.test.js                      | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/implement-and-rewrite-tests/implement-tests-with-node-test/1-get-angle-type.test.js b/implement-and-rewrite-tests/implement-tests-with-node-test/1-get-angle-type.test.js
index cf50f6cad..2117dd24d 100644
--- a/implement-and-rewrite-tests/implement-tests-with-node-test/1-get-angle-type.test.js
+++ b/implement-and-rewrite-tests/implement-tests-with-node-test/1-get-angle-type.test.js
@@ -10,3 +10,18 @@ test("Classifies right angles", () => {
   const right = getAngleType(90);
   assert.equal(right, "Right angle");
 });
+
+test("Classifies acute angles", () => {
+  const acute = getAngleType(45);
+  assert.equal(acute, "Acute angle");
+});
+
+test("classifies obtuse angles", () => {
+  const obtuse = getAngleType(120);
+  assert.equal(obtuse, "Obtuse angle");
+});
+
+test("classifies straight angles", () => {
+  const straight = getAngleType(180);
+  assert.equal(straight, "Straight angle");
+});

From 18c03c022eb7e5179b136f833ad820117e3b7a51 Mon Sep 17 00:00:00 2001
From: Fatima Rouchi <fatima.aouil@hotmail.com>
Date: Thu, 15 Oct 2026 22:38:05 +0100
Subject: [PATCH 02/20] implement functions

---
 .../implement/1-get-angle-type.js             | 21 ++++++++++++++++++-
 1 file changed, 20 insertions(+), 1 deletion(-)

diff --git a/implement-and-rewrite-tests/implement/1-get-angle-type.js b/implement-and-rewrite-tests/implement/1-get-angle-type.js
index 8a6fba050..2fcbad01e 100644
--- a/implement-and-rewrite-tests/implement/1-get-angle-type.js
+++ b/implement-and-rewrite-tests/implement/1-get-angle-type.js
@@ -17,5 +17,24 @@
 // execute the code to ensure all tests pass.
 
 export function getAngleType(angle) {
-  // TODO: Implement this function
+  if (angle === 90) {
+    return "Right angle";
+  }
+  if (angle > 0 && angle < 90) {
+    return "Acute angle";
+  }
+
+  if (angle > 90 && angle < 180) {
+    return "Obtuse angle";
+  }
+
+  if (angle === 180) {
+    return "Straight angle";
+  }
+
+  if (angle > 180 && angle < 360) {
+    return "Reflex angle";
+  }
+
+  return "Invalid angle";
 }

From a19670ae47bc0a3d93f4ed00b15d9aa64d8c2ba9 Mon Sep 17 00:00:00 2001
From: Fatima Rouchi <fatima.aouil@hotmail.com>
Date: Thu, 15 Oct 2026 22:41:16 +0100
Subject: [PATCH 03/20] fix error

---
 .../1-get-angle-type.test.js                         | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/implement-and-rewrite-tests/implement-tests-with-node-test/1-get-angle-type.test.js b/implement-and-rewrite-tests/implement-tests-with-node-test/1-get-angle-type.test.js
index 2117dd24d..0710e6c39 100644
--- a/implement-and-rewrite-tests/implement-tests-with-node-test/1-get-angle-type.test.js
+++ b/implement-and-rewrite-tests/implement-tests-with-node-test/1-get-angle-type.test.js
@@ -25,3 +25,15 @@ test("classifies straight angles", () => {
   const straight = getAngleType(180);
   assert.equal(straight, "Straight angle");
 });
+test("classifies reflex angles", () => {
+  const reflex = getAngleType(270);
+  assert.equal(reflex, "Reflex angle");
+});
+test("classifies invalid negative angles", () => {
+  const invalid = getAngleType(-10);
+  assert.equal(invalid, "Invalid angle");
+});
+test("classifies angles greater than 360 as invalid", () => {
+  const invalid = getAngleType(400);
+  assert.equal(invalid, "Invalid angle");
+});

From f5bf95b160654c790574c8b3f3c7a832b3775203 Mon Sep 17 00:00:00 2001
From: Fatima Rouchi <fatima.aouil@hotmail.com>
Date: Thu, 15 Oct 2026 22:51:54 +0100
Subject: [PATCH 04/20] implement function

---
 implement-and-rewrite-tests/implement/2-is-proper-fraction.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/implement-and-rewrite-tests/implement/2-is-proper-fraction.js b/implement-and-rewrite-tests/implement/2-is-proper-fraction.js
index f983800f0..0b4a4d686 100644
--- a/implement-and-rewrite-tests/implement/2-is-proper-fraction.js
+++ b/implement-and-rewrite-tests/implement/2-is-proper-fraction.js
@@ -14,5 +14,5 @@
 // execute the code to ensure all tests pass.
 
 export function isProperFraction(numerator, denominator) {
-  // TODO: Implement this function
+  return numerator < denominator;
 }

From 6c865baf04fdb0a2214b62a214043a17e823e100 Mon Sep 17 00:00:00 2001
From: Fatima Rouchi <fatima.aouil@hotmail.com>
Date: Thu, 15 Oct 2026 23:01:53 +0100
Subject: [PATCH 05/20] run tests

---
 .../2-is-proper-fraction.test.js              | 31 +++++++++++++++++++
 1 file changed, 31 insertions(+)

diff --git a/implement-and-rewrite-tests/implement-tests-with-node-test/2-is-proper-fraction.test.js b/implement-and-rewrite-tests/implement-tests-with-node-test/2-is-proper-fraction.test.js
index a29084605..4b86446c3 100644
--- a/implement-and-rewrite-tests/implement-tests-with-node-test/2-is-proper-fraction.test.js
+++ b/implement-and-rewrite-tests/implement-tests-with-node-test/2-is-proper-fraction.test.js
@@ -10,3 +10,34 @@ test("Basic proper fraction", () => {
   // Example: 1/2 is a proper fraction
   assert.equal(isProperFraction(1, 2), true);
 });
+test("Another proper fraction", () => {
+  assert.equal(isProperFraction(3, 4), true);
+});
+
+test("Large proper fraction", () => {
+  assert.equal(isProperFraction(99, 100), true);
+});
+
+test("Equal numerator and denominator", () => {
+  assert.equal(isProperFraction(5, 5), false);
+});
+
+test("Numerator greater than denominator", () => {
+  assert.equal(isProperFraction(7, 3), false);
+});
+
+test("Large improper fraction", () => {
+  assert.equal(isProperFraction(100, 99), false);
+});
+
+test("Zero numerator", () => {
+  assert.equal(isProperFraction(0, 5), true);
+});
+
+test("Numerator one less than denominator", () => {
+  assert.equal(isProperFraction(9, 10), true);
+});
+
+test("Numerator one more than denominator", () => {
+  assert.equal(isProperFraction(11, 10), false);
+});

From 37f4f78c55592d9f674b2e0d944c25f61ced5b68 Mon Sep 17 00:00:00 2001
From: Fatima Rouchi <fatima.aouil@hotmail.com>
Date: Thu, 15 Oct 2026 23:21:11 +0100
Subject: [PATCH 06/20] Revert latest test run

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
---
 .../2-is-proper-fraction.test.js              | 31 -------------------
 1 file changed, 31 deletions(-)

diff --git a/implement-and-rewrite-tests/implement-tests-with-node-test/2-is-proper-fraction.test.js b/implement-and-rewrite-tests/implement-tests-with-node-test/2-is-proper-fraction.test.js
index 4b86446c3..a29084605 100644
--- a/implement-and-rewrite-tests/implement-tests-with-node-test/2-is-proper-fraction.test.js
+++ b/implement-and-rewrite-tests/implement-tests-with-node-test/2-is-proper-fraction.test.js
@@ -10,34 +10,3 @@ test("Basic proper fraction", () => {
   // Example: 1/2 is a proper fraction
   assert.equal(isProperFraction(1, 2), true);
 });
-test("Another proper fraction", () => {
-  assert.equal(isProperFraction(3, 4), true);
-});
-
-test("Large proper fraction", () => {
-  assert.equal(isProperFraction(99, 100), true);
-});
-
-test("Equal numerator and denominator", () => {
-  assert.equal(isProperFraction(5, 5), false);
-});
-
-test("Numerator greater than denominator", () => {
-  assert.equal(isProperFraction(7, 3), false);
-});
-
-test("Large improper fraction", () => {
-  assert.equal(isProperFraction(100, 99), false);
-});
-
-test("Zero numerator", () => {
-  assert.equal(isProperFraction(0, 5), true);
-});
-
-test("Numerator one less than denominator", () => {
-  assert.equal(isProperFraction(9, 10), true);
-});
-
-test("Numerator one more than denominator", () => {
-  assert.equal(isProperFraction(11, 10), false);
-});

From 12f489325da9f3d47b489464a616b19e82538cc5 Mon Sep 17 00:00:00 2001
From: Fatima Rouchi <fatima.aouil@hotmail.com>
Date: Fri, 16 Oct 2026 01:02:53 +0100
Subject: [PATCH 07/20] add test

---
 .../3-get-card-value.test.js                  | 30 +++++++++++++++++--
 1 file changed, 28 insertions(+), 2 deletions(-)

diff --git a/implement-and-rewrite-tests/implement-tests-with-node-test/3-get-card-value.test.js b/implement-and-rewrite-tests/implement-tests-with-node-test/3-get-card-value.test.js
index f5092d9b1..3b8ebe28c 100644
--- a/implement-and-rewrite-tests/implement-tests-with-node-test/3-get-card-value.test.js
+++ b/implement-and-rewrite-tests/implement-tests-with-node-test/3-get-card-value.test.js
@@ -9,8 +9,34 @@ test("Valid single-digit card", () => {
   assert.equal(getCardValue("9♠"), 9);
 });
 
-test("Arbitrary non-card string", () => {
-  assert.throws(() => getCardValue("invalid"), /Expected a number followed by a suit, but got "invalid"/, "Expected clear error");
+test("Ace is worth 11", () => {
+  assert.equal(getCardValue("A♠"), 11);
+});
+test("Jack is worth 10", () => {
+  assert.equal(getCardValue("J♠"), 10);
+});
+
+test("Queen is worth 10", () => {
+  assert.equal(getCardValue("Q♠"), 10);
+});
+
+test("King is worth 10", () => {
+  assert.equal(getCardValue("K♠"), 10);
+});
+
+test("Ten is worth 10", () => {
+  assert.equal(getCardValue("10♠"), 10);
+});
+
+test("Missing suit is invalid", () => {
+  assert.throws(() => getCardValue("A"));
 });
 
 // TODO: What other invalid card cases can you think of?
+test("Arbitrary non-card string", () => {
+  assert.throws(
+    () => getCardValue("invalid"),
+    /Expected a number followed by a suit, but got "invalid"/,
+    "Expected clear error"
+  );
+});

From f47f80254f8d2721f2422e77193936b40f40b86c Mon Sep 17 00:00:00 2001
From: Fatima Rouchi <fatima.aouil@hotmail.com>
Date: Fri, 16 Oct 2026 01:03:09 +0100
Subject: [PATCH 08/20] add more test

---
 .../implement/3-get-card-value.js             | 23 ++++++++++++++++++-
 1 file changed, 22 insertions(+), 1 deletion(-)

diff --git a/implement-and-rewrite-tests/implement/3-get-card-value.js b/implement-and-rewrite-tests/implement/3-get-card-value.js
index 9614ab1ee..2eb2e4415 100644
--- a/implement-and-rewrite-tests/implement/3-get-card-value.js
+++ b/implement-and-rewrite-tests/implement/3-get-card-value.js
@@ -24,5 +24,26 @@
 // execute the code to ensure all tests pass.
 
 export function getCardValue(card) {
-  // TODO: Implement this function
+  const suit = card.slice(-1);
+  const rank = card.slice(0, -1);
+
+  if (!["♠", "♥", "♦", "♣"].includes(suit)) {
+    throw new Error(`Expected a number followed by a suit, but got "${card}"`);
+  }
+
+  if (rank === "A") {
+    return 11;
+  }
+
+  if (rank === "J" || rank === "Q" || rank === "K") {
+    return 10;
+  }
+
+  const value = Number(rank);
+
+  if (!isNaN(value) && value >= 2 && value <= 10) {
+    return value;
+  }
+
+  throw new Error(`Expected a number followed by a suit, but got "${card}"`);
 }

From d58fb5ed4b529b5029a4b0fc8d4f830b1b830c49 Mon Sep 17 00:00:00 2001
From: Fatima Rouchi <fatima.aouil@hotmail.com>
Date: Sat, 17 Oct 2026 18:55:44 +0100
Subject: [PATCH 09/20] Add Jest tests for angle types

---
 .../1-get-angle-type.test.js                  | 23 +++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/implement-and-rewrite-tests/rewrite-tests-with-jest/1-get-angle-type.test.js b/implement-and-rewrite-tests/rewrite-tests-with-jest/1-get-angle-type.test.js
index e0ba786ab..2c0564e89 100644
--- a/implement-and-rewrite-tests/rewrite-tests-with-jest/1-get-angle-type.test.js
+++ b/implement-and-rewrite-tests/rewrite-tests-with-jest/1-get-angle-type.test.js
@@ -12,7 +12,30 @@ test(`should return "Acute angle" when (0 < angle < 90)`, () => {
 });
 
 // Case 2: Right angle
+test('should return "right angle" when angle is 90', () => {
+  expect(getAngleType(90)).toEqual("Right angle");
+});
 // Case 3: Obtuse angles
+test('should return "Obtuse angle" when (90 < angle < 180)', () => {
+  expect(getAngleType(91)).toEqual("Obtuse angle");
+  expect(getAngleType(120)).toEqual("Obtuse angle");
+  expect(getAngleType(179)).toEqual("Obtuse angle");
+});
 // Case 4: Straight angle
+test('should return "Straight angle" when angle is 180', () => {
+  expect(getAngleType(180)).toEqual("Straight angle");
+});
 // Case 5: Reflex angles
+test('should return "Reflex angle" when (180 < angle < 360)', () => {
+  expect(getAngleType(181)).toEqual("Reflex angle");
+  expect(getAngleType(270)).toEqual("Reflex angle");
+  expect(getAngleType(359)).toEqual("Reflex angle");
+});
 // Case 6: Invalid angles
+
+test('should return "Invalid angle" for invalid angles', () => {
+  expect(getAngleType(-1)).toEqual("Invalid angle");
+  expect(getAngleType(0)).toEqual("Invalid angle");
+  expect(getAngleType(360)).toEqual("Invalid angle");
+  expect(getAngleType(400)).toEqual("Invalid angle");
+});

From c9cc257aaf86c5906cee61d54c1c8cb6564c830f Mon Sep 17 00:00:00 2001
From: Fatima Rouchi <fatima.aouil@hotmail.com>
Date: Sat, 17 Oct 2026 19:17:02 +0100
Subject: [PATCH 10/20] Add proper fraction tests

---
 .../2-is-proper-fraction.test.js              | 27 +++++++++++++++++++
 1 file changed, 27 insertions(+)

diff --git a/implement-and-rewrite-tests/rewrite-tests-with-jest/2-is-proper-fraction.test.js b/implement-and-rewrite-tests/rewrite-tests-with-jest/2-is-proper-fraction.test.js
index 5d49e2d8b..803c60e9b 100644
--- a/implement-and-rewrite-tests/rewrite-tests-with-jest/2-is-proper-fraction.test.js
+++ b/implement-and-rewrite-tests/rewrite-tests-with-jest/2-is-proper-fraction.test.js
@@ -6,3 +6,30 @@ import { isProperFraction } from "../implement/2-is-proper-fraction.js";
 test(`should return false when denominator is zero`, () => {
   expect(isProperFraction(1, 0)).toEqual(false);
 });
+test("should return true for a proper fraction", () => {
+  expect(isProperFraction(1, 2)).toEqual(true);
+});
+
+test("should return false when numerator equals denominator", () => {
+  expect(isProperFraction(5, 5)).toEqual(false);
+});
+
+test("should return false when numerator is greater than denominator", () => {
+  expect(isProperFraction(7, 3)).toEqual(false);
+});
+
+test("should return true when numerator is zero", () => {
+  expect(isProperFraction(0, 5)).toEqual(true);
+});
+
+test("should return false for negative numerator and denominator", () => {
+  expect(isProperFraction(-1, -2)).toEqual(false);
+});
+
+test("should return true for negative numerator and positive denominator", () => {
+  expect(isProperFraction(-1, 2)).toEqual(true);
+});
+
+test("should return false for positive numerator and negative denominator", () => {
+  expect(isProperFraction(1, -2)).toEqual(false);
+});

From eaa392078f8ea68c66284a602151c6019e81d325 Mon Sep 17 00:00:00 2001
From: Fatima Rouchi <fatima.aouil@hotmail.com>
Date: Sat, 17 Oct 2026 19:25:33 +0100
Subject: [PATCH 11/20] Add Jest tests for card values

---
 .../3-get-card-value.test.js                  | 26 ++++++++++++++++++-
 1 file changed, 25 insertions(+), 1 deletion(-)

diff --git a/implement-and-rewrite-tests/rewrite-tests-with-jest/3-get-card-value.test.js b/implement-and-rewrite-tests/rewrite-tests-with-jest/3-get-card-value.test.js
index a6de5a82a..b49ddd84d 100644
--- a/implement-and-rewrite-tests/rewrite-tests-with-jest/3-get-card-value.test.js
+++ b/implement-and-rewrite-tests/rewrite-tests-with-jest/3-get-card-value.test.js
@@ -9,10 +9,34 @@ test(`Should return 11 when given an ace card`, () => {
 
 // Suggestion: Group the remaining test data into these categories:
 //   Number Cards (2-10)
+test("Should return 2 when given a 2 card", () => {
+  expect(getCardValue("2♠")).toEqual(2);
+});
+
+test("Should return 10 when given a 10 card", () => {
+  expect(getCardValue("10♠")).toEqual(10);
+});
 //   Face Cards (J, Q, K)
+test("Should return 10 when given a Jack", () => {
+  expect(getCardValue("J♠")).toEqual(10);
+});
+
+test("Should return 10 when given a Queen", () => {
+  expect(getCardValue("Q♠")).toEqual(10);
+});
+
+test("Should return 10 when given a King", () => {
+  expect(getCardValue("K♠")).toEqual(10);
+});
 //   Invalid Cards
+test("Should throw an error for invalid text", () => {
+  expect(() => getCardValue("invalid")).toThrow();
+});
+
+test("Should throw an error when suit is missing", () => {
+  expect(() => getCardValue("A")).toThrow();
+});
 
 // To learn how to test whether a function throws an error as expected in Jest,
 // please refer to the Jest documentation:
 // https://jestjs.io/docs/expect#tothrowerror
-

From 6e7d6e61370323c6d7ec118fee8bc86d577a4bb7 Mon Sep 17 00:00:00 2001
From: Fatima Rouchi <fatima.aouil@hotmail.com>
Date: Mon, 26 Oct 2026 21:19:01 +0000
Subject: [PATCH 12/20] Add boundary cases to angle type tests

---
 .../1-get-angle-type.test.js                  | 38 +++++++++----------
 1 file changed, 19 insertions(+), 19 deletions(-)

diff --git a/implement-and-rewrite-tests/implement-tests-with-node-test/1-get-angle-type.test.js b/implement-and-rewrite-tests/implement-tests-with-node-test/1-get-angle-type.test.js
index 0710e6c39..bf52cc6c9 100644
--- a/implement-and-rewrite-tests/implement-tests-with-node-test/1-get-angle-type.test.js
+++ b/implement-and-rewrite-tests/implement-tests-with-node-test/1-get-angle-type.test.js
@@ -3,37 +3,37 @@ import test from "node:test";
 
 import { getAngleType } from "../implement/1-get-angle-type.js";
 
-// TODO: Write tests to cover all cases, including boundary and invalid cases.
-// Example: Identify Right Angles
-
 test("Classifies right angles", () => {
   const right = getAngleType(90);
   assert.equal(right, "Right angle");
 });
 
 test("Classifies acute angles", () => {
-  const acute = getAngleType(45);
-  assert.equal(acute, "Acute angle");
+  assert.equal(getAngleType(1), "Acute angle");
+  assert.equal(getAngleType(45), "Acute angle");
+  assert.equal(getAngleType(89), "Acute angle");
 });
 
-test("classifies obtuse angles", () => {
-  const obtuse = getAngleType(120);
-  assert.equal(obtuse, "Obtuse angle");
+test("Classifies obtuse angles", () => {
+  assert.equal(getAngleType(91), "Obtuse angle");
+  assert.equal(getAngleType(120), "Obtuse angle");
+  assert.equal(getAngleType(179), "Obtuse angle");
 });
 
-test("classifies straight angles", () => {
+test("Classifies straight angles", () => {
   const straight = getAngleType(180);
   assert.equal(straight, "Straight angle");
 });
-test("classifies reflex angles", () => {
-  const reflex = getAngleType(270);
-  assert.equal(reflex, "Reflex angle");
-});
-test("classifies invalid negative angles", () => {
-  const invalid = getAngleType(-10);
-  assert.equal(invalid, "Invalid angle");
+
+test("Classifies reflex angles", () => {
+  assert.equal(getAngleType(181), "Reflex angle");
+  assert.equal(getAngleType(270), "Reflex angle");
+  assert.equal(getAngleType(359), "Reflex angle");
 });
-test("classifies angles greater than 360 as invalid", () => {
-  const invalid = getAngleType(400);
-  assert.equal(invalid, "Invalid angle");
+
+test("Classifies angles outside the valid range as invalid", () => {
+  assert.equal(getAngleType(-10), "Invalid angle");
+  assert.equal(getAngleType(0), "Invalid angle");
+  assert.equal(getAngleType(360), "Invalid angle");
+  assert.equal(getAngleType(400), "Invalid angle");
 });

From f4eca9e694a9253bb89ba1f925069b71faf5684c Mon Sep 17 00:00:00 2001
From: Fatima Rouchi <fatima.aouil@hotmail.com>
Date: Mon, 26 Oct 2026 21:25:45 +0000
Subject: [PATCH 13/20] Restrict card values to valid ranks

---
 .../implement/3-get-card-value.js             | 30 +++++++++++--------
 1 file changed, 18 insertions(+), 12 deletions(-)

diff --git a/implement-and-rewrite-tests/implement/3-get-card-value.js b/implement-and-rewrite-tests/implement/3-get-card-value.js
index 2eb2e4415..56f935df2 100644
--- a/implement-and-rewrite-tests/implement/3-get-card-value.js
+++ b/implement-and-rewrite-tests/implement/3-get-card-value.js
@@ -23,6 +23,22 @@
 // After you have implemented the function, write tests to cover all the cases, and
 // execute the code to ensure all tests pass.
 
+const cardValues = new Map([
+  ["A", 11],
+  ["2", 2],
+  ["3", 3],
+  ["4", 4],
+  ["5", 5],
+  ["6", 6],
+  ["7", 7],
+  ["8", 8],
+  ["9", 9],
+  ["10", 10],
+  ["J", 10],
+  ["Q", 10],
+  ["K", 10],
+]);
+
 export function getCardValue(card) {
   const suit = card.slice(-1);
   const rank = card.slice(0, -1);
@@ -31,18 +47,8 @@ export function getCardValue(card) {
     throw new Error(`Expected a number followed by a suit, but got "${card}"`);
   }
 
-  if (rank === "A") {
-    return 11;
-  }
-
-  if (rank === "J" || rank === "Q" || rank === "K") {
-    return 10;
-  }
-
-  const value = Number(rank);
-
-  if (!isNaN(value) && value >= 2 && value <= 10) {
-    return value;
+  if (cardValues.has(rank)) {
+    return cardValues.get(rank);
   }
 
   throw new Error(`Expected a number followed by a suit, but got "${card}"`);

From d034af546975b294954fc9f4e2642b29d34dba9e Mon Sep 17 00:00:00 2001
From: Fatima Rouchi <fatima.aouil@hotmail.com>
Date: Mon, 26 Oct 2026 21:26:20 +0000
Subject: [PATCH 14/20] Test all valid card ranks and reject invalid formats

---
 .../3-get-card-value.test.js                  | 69 +++++++++----------
 1 file changed, 33 insertions(+), 36 deletions(-)

diff --git a/implement-and-rewrite-tests/implement-tests-with-node-test/3-get-card-value.test.js b/implement-and-rewrite-tests/implement-tests-with-node-test/3-get-card-value.test.js
index 3b8ebe28c..b55ba9b03 100644
--- a/implement-and-rewrite-tests/implement-tests-with-node-test/3-get-card-value.test.js
+++ b/implement-and-rewrite-tests/implement-tests-with-node-test/3-get-card-value.test.js
@@ -3,40 +3,37 @@ import test from "node:test";
 
 import { getCardValue } from "../implement/3-get-card-value.js";
 
-// TODO: Write tests to cover all outcomes, including throwing errors for invalid cards.
-
-test("Valid single-digit card", () => {
-  assert.equal(getCardValue("9♠"), 9);
-});
-
-test("Ace is worth 11", () => {
-  assert.equal(getCardValue("A♠"), 11);
-});
-test("Jack is worth 10", () => {
-  assert.equal(getCardValue("J♠"), 10);
-});
-
-test("Queen is worth 10", () => {
-  assert.equal(getCardValue("Q♠"), 10);
-});
-
-test("King is worth 10", () => {
-  assert.equal(getCardValue("K♠"), 10);
-});
-
-test("Ten is worth 10", () => {
-  assert.equal(getCardValue("10♠"), 10);
-});
-
-test("Missing suit is invalid", () => {
-  assert.throws(() => getCardValue("A"));
-});
-
-// TODO: What other invalid card cases can you think of?
-test("Arbitrary non-card string", () => {
-  assert.throws(
-    () => getCardValue("invalid"),
-    /Expected a number followed by a suit, but got "invalid"/,
-    "Expected clear error"
-  );
+test("Returns the correct value for every valid rank and suit", () => {
+  const expectedValues = {
+    A: 11,
+    2: 2,
+    3: 3,
+    4: 4,
+    5: 5,
+    6: 6,
+    7: 7,
+    8: 8,
+    9: 9,
+    10: 10,
+    J: 10,
+    Q: 10,
+    K: 10,
+  };
+  const suits = ["♠", "♥", "♦", "♣"];
+
+  for (const [rank, value] of Object.entries(expectedValues)) {
+    for (const suit of suits) {
+      assert.equal(getCardValue(`${rank}${suit}`), value);
+    }
+  }
+});
+
+test("Throws an error for invalid card formats", () => {
+  const invalidCards = ["A", "invalid", "1♠", "11♠", "02♠", "2.5♠", " 2♠", "A?", ""];
+
+  for (const card of invalidCards) {
+    assert.throws(() => getCardValue(card), {
+      message: `Expected a number followed by a suit, but got "${card}"`,
+    });
+  }
 });

From 7e69ad3cb68f6cab1acec5d463fbfbe0d90ed4c6 Mon Sep 17 00:00:00 2001
From: Fatima Rouchi <fatima.aouil@hotmail.com>
Date: Mon, 26 Oct 2026 21:26:52 +0000
Subject: [PATCH 15/20] Cover all card ranks and invalid formats in Jest tests

---
 .../3-get-card-value.test.js                  | 72 +++++++++----------
 1 file changed, 33 insertions(+), 39 deletions(-)

diff --git a/implement-and-rewrite-tests/rewrite-tests-with-jest/3-get-card-value.test.js b/implement-and-rewrite-tests/rewrite-tests-with-jest/3-get-card-value.test.js
index b49ddd84d..0ef35f575 100644
--- a/implement-and-rewrite-tests/rewrite-tests-with-jest/3-get-card-value.test.js
+++ b/implement-and-rewrite-tests/rewrite-tests-with-jest/3-get-card-value.test.js
@@ -1,42 +1,36 @@
 import { getCardValue } from "../implement/3-get-card-value.js";
 
-// TODO: Write tests in Jest syntax to cover all possible outcomes.
-
-// Case 1: Ace (A)
-test(`Should return 11 when given an ace card`, () => {
-  expect(getCardValue("A♠")).toEqual(11);
-});
-
-// Suggestion: Group the remaining test data into these categories:
-//   Number Cards (2-10)
-test("Should return 2 when given a 2 card", () => {
-  expect(getCardValue("2♠")).toEqual(2);
-});
-
-test("Should return 10 when given a 10 card", () => {
-  expect(getCardValue("10♠")).toEqual(10);
-});
-//   Face Cards (J, Q, K)
-test("Should return 10 when given a Jack", () => {
-  expect(getCardValue("J♠")).toEqual(10);
-});
-
-test("Should return 10 when given a Queen", () => {
-  expect(getCardValue("Q♠")).toEqual(10);
-});
-
-test("Should return 10 when given a King", () => {
-  expect(getCardValue("K♠")).toEqual(10);
-});
-//   Invalid Cards
-test("Should throw an error for invalid text", () => {
-  expect(() => getCardValue("invalid")).toThrow();
+test("Returns the correct value for every valid rank and suit", () => {
+  const expectedValues = {
+    A: 11,
+    2: 2,
+    3: 3,
+    4: 4,
+    5: 5,
+    6: 6,
+    7: 7,
+    8: 8,
+    9: 9,
+    10: 10,
+    J: 10,
+    Q: 10,
+    K: 10,
+  };
+  const suits = ["♠", "♥", "♦", "♣"];
+
+  for (const [rank, value] of Object.entries(expectedValues)) {
+    for (const suit of suits) {
+      expect(getCardValue(`${rank}${suit}`)).toEqual(value);
+    }
+  }
+});
+
+test("Throws an error for invalid card formats", () => {
+  const invalidCards = ["A", "invalid", "1♠", "11♠", "02♠", "2.5♠", " 2♠", "A?", ""];
+
+  for (const card of invalidCards) {
+    expect(() => getCardValue(card)).toThrow(
+      `Expected a number followed by a suit, but got "${card}"`
+    );
+  }
 });
-
-test("Should throw an error when suit is missing", () => {
-  expect(() => getCardValue("A")).toThrow();
-});
-
-// To learn how to test whether a function throws an error as expected in Jest,
-// please refer to the Jest documentation:
-// https://jestjs.io/docs/expect#tothrowerror

From 2c547d912031831a75a1fba2fecbdcbdb211bb44 Mon Sep 17 00:00:00 2001
From: Fatima Rouchi <fatima.aouil@hotmail.com>
Date: Mon, 26 Oct 2026 21:38:37 +0000
Subject: [PATCH 16/20] Correct proper fraction expectation for negative values

---
 .../rewrite-tests-with-jest/2-is-proper-fraction.test.js      | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/implement-and-rewrite-tests/rewrite-tests-with-jest/2-is-proper-fraction.test.js b/implement-and-rewrite-tests/rewrite-tests-with-jest/2-is-proper-fraction.test.js
index 803c60e9b..92d8f95c3 100644
--- a/implement-and-rewrite-tests/rewrite-tests-with-jest/2-is-proper-fraction.test.js
+++ b/implement-and-rewrite-tests/rewrite-tests-with-jest/2-is-proper-fraction.test.js
@@ -22,8 +22,8 @@ test("should return true when numerator is zero", () => {
   expect(isProperFraction(0, 5)).toEqual(true);
 });
 
-test("should return false for negative numerator and denominator", () => {
-  expect(isProperFraction(-1, -2)).toEqual(false);
+test("should return true when both numerator and denominator are negative and form a proper fraction", () => {
+  expect(isProperFraction(-1, -2)).toEqual(true);
 });
 
 test("should return true for negative numerator and positive denominator", () => {

From dd4d5dc2a84dbaad393fc994b8d92461e8a80718 Mon Sep 17 00:00:00 2001
From: Fatima Rouchi <fatima.aouil@hotmail.com>
Date: Tue, 27 Oct 2026 19:12:20 +0000
Subject: [PATCH 17/20] test: reject invalid card ranks

---
 .../3-get-card-value.test.js                      | 15 ++++++++++++++-
 .../3-get-card-value.test.js                      | 15 ++++++++++++++-
 2 files changed, 28 insertions(+), 2 deletions(-)

diff --git a/implement-and-rewrite-tests/implement-tests-with-node-test/3-get-card-value.test.js b/implement-and-rewrite-tests/implement-tests-with-node-test/3-get-card-value.test.js
index b55ba9b03..91c89c74d 100644
--- a/implement-and-rewrite-tests/implement-tests-with-node-test/3-get-card-value.test.js
+++ b/implement-and-rewrite-tests/implement-tests-with-node-test/3-get-card-value.test.js
@@ -29,7 +29,20 @@ test("Returns the correct value for every valid rank and suit", () => {
 });
 
 test("Throws an error for invalid card formats", () => {
-  const invalidCards = ["A", "invalid", "1♠", "11♠", "02♠", "2.5♠", " 2♠", "A?", ""];
+  const invalidCards = [
+    "A",
+    "invalid",
+    "1♠",
+    "11♠",
+    "02♠",
+    "0x02♦",
+    "2.1♦",
+    "0002♦",
+    "2.5♠",
+    " 2♠",
+    "A?",
+    "",
+  ];
 
   for (const card of invalidCards) {
     assert.throws(() => getCardValue(card), {
diff --git a/implement-and-rewrite-tests/rewrite-tests-with-jest/3-get-card-value.test.js b/implement-and-rewrite-tests/rewrite-tests-with-jest/3-get-card-value.test.js
index 0ef35f575..8b68d305e 100644
--- a/implement-and-rewrite-tests/rewrite-tests-with-jest/3-get-card-value.test.js
+++ b/implement-and-rewrite-tests/rewrite-tests-with-jest/3-get-card-value.test.js
@@ -26,7 +26,20 @@ test("Returns the correct value for every valid rank and suit", () => {
 });
 
 test("Throws an error for invalid card formats", () => {
-  const invalidCards = ["A", "invalid", "1♠", "11♠", "02♠", "2.5♠", " 2♠", "A?", ""];
+  const invalidCards = [
+    "A",
+    "invalid",
+    "1♠",
+    "11♠",
+    "02♠",
+    "0x02♦",
+    "2.1♦",
+    "0002♦",
+    "2.5♠",
+    " 2♠",
+    "A?",
+    "",
+  ];
 
   for (const card of invalidCards) {
     expect(() => getCardValue(card)).toThrow(

From 6f64b83f1a5d8626982aa6d50aef1e268c054d79 Mon Sep 17 00:00:00 2001
From: Fatima Rouchi <fatima.aouil@hotmail.com>
Date: Tue, 27 Oct 2026 19:18:54 +0000
Subject: [PATCH 18/20] test: cover angle boundaries

---
 .../rewrite-tests-with-jest/1-get-angle-type.test.js        | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/implement-and-rewrite-tests/rewrite-tests-with-jest/1-get-angle-type.test.js b/implement-and-rewrite-tests/rewrite-tests-with-jest/1-get-angle-type.test.js
index 2c0564e89..682c281a5 100644
--- a/implement-and-rewrite-tests/rewrite-tests-with-jest/1-get-angle-type.test.js
+++ b/implement-and-rewrite-tests/rewrite-tests-with-jest/1-get-angle-type.test.js
@@ -7,7 +7,9 @@ import { getAngleType } from "../implement/1-get-angle-type.js";
 test(`should return "Acute angle" when (0 < angle < 90)`, () => {
   // Test various acute angles, including boundary cases
   expect(getAngleType(1)).toEqual("Acute angle");
+  expect(getAngleType(0.5)).toEqual("Acute angle");
   expect(getAngleType(45)).toEqual("Acute angle");
+  expect(getAngleType(89.5)).toEqual("Acute angle");
   expect(getAngleType(89)).toEqual("Acute angle");
 });
 
@@ -17,8 +19,10 @@ test('should return "right angle" when angle is 90', () => {
 });
 // Case 3: Obtuse angles
 test('should return "Obtuse angle" when (90 < angle < 180)', () => {
+  expect(getAngleType(90.5)).toEqual("Obtuse angle");
   expect(getAngleType(91)).toEqual("Obtuse angle");
   expect(getAngleType(120)).toEqual("Obtuse angle");
+  expect(getAngleType(179.5)).toEqual("Obtuse angle");
   expect(getAngleType(179)).toEqual("Obtuse angle");
 });
 // Case 4: Straight angle
@@ -27,8 +31,10 @@ test('should return "Straight angle" when angle is 180', () => {
 });
 // Case 5: Reflex angles
 test('should return "Reflex angle" when (180 < angle < 360)', () => {
+  expect(getAngleType(180.5)).toEqual("Reflex angle");
   expect(getAngleType(181)).toEqual("Reflex angle");
   expect(getAngleType(270)).toEqual("Reflex angle");
+  expect(getAngleType(359.5)).toEqual("Reflex angle");
   expect(getAngleType(359)).toEqual("Reflex angle");
 });
 // Case 6: Invalid angles

From 1c0da2991c8d546954491f611b5069c4085c8007 Mon Sep 17 00:00:00 2001
From: Fatima Rouchi <fatima.aouil@hotmail.com>
Date: Tue, 27 Oct 2026 19:29:42 +0000
Subject: [PATCH 19/20] Add negative angle coverage

---
 .../rewrite-tests-with-jest/1-get-angle-type.test.js             | 1 +
 1 file changed, 1 insertion(+)

diff --git a/implement-and-rewrite-tests/rewrite-tests-with-jest/1-get-angle-type.test.js b/implement-and-rewrite-tests/rewrite-tests-with-jest/1-get-angle-type.test.js
index 682c281a5..0b7729450 100644
--- a/implement-and-rewrite-tests/rewrite-tests-with-jest/1-get-angle-type.test.js
+++ b/implement-and-rewrite-tests/rewrite-tests-with-jest/1-get-angle-type.test.js
@@ -41,6 +41,7 @@ test('should return "Reflex angle" when (180 < angle < 360)', () => {
 
 test('should return "Invalid angle" for invalid angles', () => {
   expect(getAngleType(-1)).toEqual("Invalid angle");
+  expect(getAngleType(-10)).toEqual("Invalid angle");
   expect(getAngleType(0)).toEqual("Invalid angle");
   expect(getAngleType(360)).toEqual("Invalid angle");
   expect(getAngleType(400)).toEqual("Invalid angle");

From cb8fa8aed842856cd3c2501c0ef17ce9b8f9cd74 Mon Sep 17 00:00:00 2001
From: Fatima Rouchi <fatima.aouil@hotmail.com>
Date: Tue, 27 Oct 2026 19:37:10 +0000
Subject: [PATCH 20/20] Group card value cases

---
 .../3-get-card-value.test.js                  | 37 ++++++++++---------
 1 file changed, 19 insertions(+), 18 deletions(-)

diff --git a/implement-and-rewrite-tests/rewrite-tests-with-jest/3-get-card-value.test.js b/implement-and-rewrite-tests/rewrite-tests-with-jest/3-get-card-value.test.js
index 8b68d305e..48e620208 100644
--- a/implement-and-rewrite-tests/rewrite-tests-with-jest/3-get-card-value.test.js
+++ b/implement-and-rewrite-tests/rewrite-tests-with-jest/3-get-card-value.test.js
@@ -1,30 +1,31 @@
 import { getCardValue } from "../implement/3-get-card-value.js";
 
-test("Returns the correct value for every valid rank and suit", () => {
-  const expectedValues = {
-    A: 11,
-    2: 2,
-    3: 3,
-    4: 4,
-    5: 5,
-    6: 6,
-    7: 7,
-    8: 8,
-    9: 9,
-    10: 10,
-    J: 10,
-    Q: 10,
-    K: 10,
-  };
+test("Returns the value of number cards from 2 to 10", () => {
   const suits = ["♠", "♥", "♦", "♣"];
 
-  for (const [rank, value] of Object.entries(expectedValues)) {
+  for (let rank = 2; rank <= 10; rank += 1) {
     for (const suit of suits) {
-      expect(getCardValue(`${rank}${suit}`)).toEqual(value);
+      expect(getCardValue(`${rank}${suit}`)).toEqual(rank);
     }
   }
 });
 
+test("Returns 10 for face cards", () => {
+  const suits = ["♠", "♥", "♦", "♣"];
+
+  for (const rank of ["J", "Q", "K"]) {
+    for (const suit of suits) {
+      expect(getCardValue(`${rank}${suit}`)).toEqual(10);
+    }
+  }
+});
+
+test("Returns 11 for aces", () => {
+  for (const suit of ["♠", "♥", "♦", "♣"]) {
+    expect(getCardValue(`A${suit}`)).toEqual(11);
+  }
+});
+
 test("Throws an error for invalid card formats", () => {
   const invalidCards = [
     "A",