Amethyst-C19-Kaliane-Van-JS-Adagrams

src/adagrams.js

@@ -1,15 +1,97 @@
+// WAVE 1
 export const drawLetters = () => {
-  // Implement this method for wave 1
+  const letterPool = {
+    'A': 9, 'B': 2, 'C': 2, 'D': 4, 'E': 12,'F': 2,
+    'G': 3, 'H': 2, 'I': 9, 'J': 1, 'K': 1, 'L': 4, 
+    'M': 2, 'N': 6, 'O': 8, 'P': 2, 'Q': 1, 'R': 6,
+    'S': 4, 'T': 6, 'U': 4, 'V': 2, 'W': 2, 'X': 1,
+    'Y': 2, 'Z': 1
+  };
+
+  let letters = [];
+  for (let letter in letterPool) {
+    for (let i = 0; i < letterPool[letter]; i++) {
+      letters.push(letter);
+    }
+  }
+
+  let hand = [];
+  for (let i = 0; i < 10; i++) {
+    let randomIndex = Math.floor(Math.random() * letters.length);
+    hand.push(letters[randomIndex]);
+    letters.splice(randomIndex, 1);
+  }
+
+  return hand;
 };
 
+// WAVE 2
 export const usesAvailableLetters = (input, lettersInHand) => {
-  // Implement this method for wave 2
+  let lettersInHandCopy = [...lettersInHand];
+  for (let letter of input) {
+    if (!lettersInHandCopy.includes(letter)) {
+      return false;
+    } else {
+      let index = lettersInHandCopy.indexOf(letter);
+      lettersInHandCopy.splice(index, 1);
+    }
+  }
+
+  return true;
 };
 
+// WAVE 3
 export const scoreWord = (word) => {
-  // Implement this method for wave 3
+  if (word.length === 0) {
+    return 0;
+  }
+
+  const letterScores = {
+    A: 1, E: 1, I: 1, O: 1, U: 1, L: 1, N: 1, R: 1, S: 1, T: 1, D: 2,
+    G: 2,
+    B: 3, C: 3, M: 3, P: 3,
+    F: 4, H: 4, V: 4, W: 4, Y: 4,
+    K: 5,
+    J: 8, X: 8,
+    Q: 10, Z: 10
+  };
+
+  let score = 0;
+
+  for (let letter of word.toUpperCase()) {
+    score += letterScores[letter];
+  }
+
+  if (word.length >= 7) {
+    score += 8;
+  }
+
+  return score;
 };
 
+
+// WAVE 4
 export const highestScoreFrom = (words) => {
-  // Implement this method for wave 4
-};
+  let highestScoringWord = '';
+  let highestScore = 0;
+
+  for (let word of words) {
+    let score = scoreWord(word);
+
+    if (score > highestScore) {
+      highestScore = score;
+      highestScoringWord = word;
+    } else if (score === highestScore) {
+      if (word.length === 10 && highestScoringWord.length !== 10) {
+        highestScoringWord = word;
+      } else if (word.length < highestScoringWord.length && highestScoringWord.length !== 10) {
+        highestScoringWord = word;
+      }
+    }
+  }
+
+  return {
+    word: highestScoringWord,
+    score: highestScore
+  };
+};

test/adagrams.test.js

@@ -120,7 +120,12 @@ describe("Adagrams", () => {
     });
 
     it("returns a score of 0 if given an empty input", () => {
-      throw "Complete test";
+      const word = '';
+      const correct = 0;
+
+      const result = scoreWord(word);
+
+      expect(result).toBe(correct);
     });
 
     it("adds an extra 8 points if word is 7 or more characters long", () => {
@@ -133,7 +138,7 @@ describe("Adagrams", () => {
     });
   });
 
-  describe.skip("highestScoreFrom", () => {
+  describe("highestScoreFrom", () => {
     it("returns a hash that contains the word and score of best word in an array", () => {
       const words = ["X", "XX", "XXX", "XXXX"];
       const correct = { word: "XXXX", score: scoreWord("XXXX") };
@@ -144,10 +149,21 @@ describe("Adagrams", () => {
     it("accurately finds best scoring word even if not sorted", () => {
       const words = ["XXX", "XXXX", "X", "XX"];
       const correct = { word: "XXXX", score: scoreWord("XXXX") };
-
-      throw "Complete test by adding an assertion";
+      const result = highestScoreFrom(words);
+
+      expect(result).toEqual(correct);      
     });
 
+    it("accurately finds best scoring word even if not sorted", () => {
+  const words = ["XXX", "XXXX", "X", "XX"];
+  const correct = { word: "XXXX", score: scoreWord("XXXX") };
+
+  const result = highestScoreFrom(words);
+
+  expect(result).toEqual(correct);
+});
+
+
     describe("in case of tied score", () => {
       const expectTie = (words) => {
         const scores = words.map((word) => scoreWord(word));

test/demo/model.test.js

@@ -1,7 +1,7 @@
 import Model from 'demo/model';
 import Adagrams from 'demo/adagrams';
 
-describe.skip('Game Model', () => {
+describe('Game Model', () => {
   const config = {
     players: [
       'Player A',