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FridaTveitFridaTveit
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Merge pull request exercism#664 from Smarticles101/food-chain
food-chain: add to track
2 parents fadf388 + 38c9255 commit cef5fa7

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‎config.json‎

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]
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},
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{
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"slug": "food-chain",
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"difficulty": 6,
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"topics": []
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},
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{
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"slug": "beer-song",
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"difficulty": 6,

‎exercises/food-chain/build.gradle‎

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apply plugin: "java"
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apply plugin: "eclipse"
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apply plugin: "idea"
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repositories {
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mavenCentral()
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}
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dependencies {
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testCompile "junit:junit:4.12"
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}
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test {
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testLogging {
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exceptionFormat = 'full'
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events = ["passed", "failed", "skipped"]
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}
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}

‎exercises/food-chain/src/example/java/FoodChain.java‎

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import java.util.stream.IntStream;
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public class FoodChain {
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private static final String[] ANIMALS = {
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"fly",
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"spider",
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"bird",
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"cat",
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"dog",
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"goat",
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"cow"
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};
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private static final String[] FOLLOWUPS = {
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"It wriggled and jiggled and tickled inside her.",
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"How absurd to swallow a bird!",
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"Imagine that, to swallow a cat!",
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"What a hog, to swallow a dog!",
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"Just opened her throat and swallowed a goat!",
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"I don't know how she swallowed a cow!"
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};
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public String verse(int verse) {
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return verseBeginning(verse) + verseMiddle(verse) + verseEnding(verse);
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}
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public String verses(int startVerse, int endVerse) {
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String[] verses = new String[endVerse - startVerse + 1];
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for (int i = 0; i <= endVerse - startVerse; i++) {
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verses[i] = verse(i + 1);
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}
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return String.join("\n\n", verses);
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}
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private String verseBeginning(int verse) {
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if (verse == 1) {
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return "I know an old lady who swallowed a fly.\n";
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}
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if (verse == 8) {
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return "I know an old lady who swallowed a horse.\n";
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}
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return "I know an old lady who swallowed a " + ANIMALS[verse - 1] + ".\n" + FOLLOWUPS[verse - 2] + "\n";
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}
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private String verseMiddle(int verse) {
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if (verse == 1 || verse == 8) {
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return "";
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}
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String[] lines = new String[verse - 1];
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for (int i = verse - 1; i >= 1; i--) {
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lines[lines.length - i] = "She swallowed the " +
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ANIMALS[i] + " to catch the " + ANIMALS[i - 1] +
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(i == 2 ? " that wriggled and jiggled and tickled inside her." : ".");
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}
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return String.join("\n", lines) + "\n";
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}
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private String verseEnding(int verse) {
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if (verse == 8) {
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return "She's dead, of course!";
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}
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return "I don't know why she swallowed the fly. Perhaps she'll die.";
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}
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}

‎exercises/food-chain/src/main/java/.keep‎

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‎exercises/food-chain/src/test/java/FoodChainTest.java‎

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import org.junit.Before;
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import org.junit.Test;
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import org.junit.Ignore;
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import static org.junit.Assert.assertEquals;
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public class FoodChainTest {
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private FoodChain foodChain;
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@Before
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public void setup() {
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foodChain = new FoodChain();
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}
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@Test
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public void fly() {
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int verse = 1;
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String expected = "I know an old lady who swallowed a fly.\n" +
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"I don't know why she swallowed the fly. Perhaps she'll die.";
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assertEquals(expected, foodChain.verse(verse));
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}
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@Test
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@Ignore("Remove to run test.")
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public void spider() {
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int verse = 2;
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String expected = "I know an old lady who swallowed a spider.\n" +
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"It wriggled and jiggled and tickled inside her.\n" +
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"She swallowed the spider to catch the fly.\n" +
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"I don't know why she swallowed the fly. Perhaps she'll die.";
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assertEquals(expected, foodChain.verse(verse));
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}
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@Test
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@Ignore("Remove to run test.")
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public void bird() {
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int verse = 3;
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String expected = "I know an old lady who swallowed a bird.\n" +
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"How absurd to swallow a bird!\n" +
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"She swallowed the bird to catch the spider that wriggled and jiggled and tickled inside her.\n" +
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"She swallowed the spider to catch the fly.\n" +
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"I don't know why she swallowed the fly. Perhaps she'll die.";
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assertEquals(expected, foodChain.verse(verse));
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}
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@Test
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@Ignore("Remove to run test.")
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public void cat() {
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int verse = 4;
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String expected = "I know an old lady who swallowed a cat.\n" +
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"Imagine that, to swallow a cat!\n" +
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"She swallowed the cat to catch the bird.\n" +
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"She swallowed the bird to catch the spider that wriggled and jiggled and tickled inside her.\n" +
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"She swallowed the spider to catch the fly.\n" +
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"I don't know why she swallowed the fly. Perhaps she'll die.";
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assertEquals(expected, foodChain.verse(verse));
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}
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@Test
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@Ignore("Remove to run test.")
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public void dog() {
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int verse = 5;
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String expected = "I know an old lady who swallowed a dog.\n" +
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"What a hog, to swallow a dog!\n" +
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"She swallowed the dog to catch the cat.\n" +
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"She swallowed the cat to catch the bird.\n" +
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"She swallowed the bird to catch the spider that wriggled and jiggled and tickled inside her.\n" +
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"She swallowed the spider to catch the fly.\n" +
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"I don't know why she swallowed the fly. Perhaps she'll die.";
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assertEquals(expected, foodChain.verse(verse));
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}
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@Test
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@Ignore("Remove to run test.")
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public void goat() {
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int verse = 6;
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String expected = "I know an old lady who swallowed a goat.\n" +
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"Just opened her throat and swallowed a goat!\n" +
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"She swallowed the goat to catch the dog.\n" +
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"She swallowed the dog to catch the cat.\n" +
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"She swallowed the cat to catch the bird.\n" +
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"She swallowed the bird to catch the spider that wriggled and jiggled and tickled inside her.\n" +
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"She swallowed the spider to catch the fly.\n" +
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"I don't know why she swallowed the fly. Perhaps she'll die.";
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assertEquals(expected, foodChain.verse(verse));
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}
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@Test
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@Ignore("Remove to run test.")
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public void cow() {
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int verse = 7;
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String expected = "I know an old lady who swallowed a cow.\n" +
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"I don't know how she swallowed a cow!\n" +
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"She swallowed the cow to catch the goat.\n" +
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"She swallowed the goat to catch the dog.\n" +
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"She swallowed the dog to catch the cat.\n" +
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"She swallowed the cat to catch the bird.\n" +
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"She swallowed the bird to catch the spider that wriggled and jiggled and tickled inside her.\n" +
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"She swallowed the spider to catch the fly.\n" +
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"I don't know why she swallowed the fly. Perhaps she'll die.";
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assertEquals(expected, foodChain.verse(verse));
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}
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@Test
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@Ignore("Remove to run test.")
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public void horse() {
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int verse = 8;
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String expected = "I know an old lady who swallowed a horse.\n" +
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"She's dead, of course!";
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assertEquals(expected, foodChain.verse(verse));
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}
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@Test
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@Ignore("Remove to run test.")
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public void multipleVerses() {
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int startVerse = 1;
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int endVerse = 3;
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String expected = "I know an old lady who swallowed a fly.\n" +
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"I don't know why she swallowed the fly. Perhaps she'll die.\n" +
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"\n" +
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"I know an old lady who swallowed a spider.\n" +
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"It wriggled and jiggled and tickled inside her.\n" +
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"She swallowed the spider to catch the fly.\n" +
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"I don't know why she swallowed the fly. Perhaps she'll die.\n" +
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"\n" +
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"I know an old lady who swallowed a bird.\n" +
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"How absurd to swallow a bird!\n" +
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"She swallowed the bird to catch the spider that wriggled and jiggled and tickled inside her.\n" +
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"She swallowed the spider to catch the fly.\n" +
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"I don't know why she swallowed the fly. Perhaps she'll die.";
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assertEquals(expected, foodChain.verses(startVerse, endVerse));
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}
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@Test
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@Ignore("Remove to run test.")
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public void wholeSong() {
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int startVerse = 1;
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int endVerse = 8;
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String expected = "I know an old lady who swallowed a fly.\n" +
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"I don't know why she swallowed the fly. Perhaps she'll die.\n" +
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"\n" +
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"I know an old lady who swallowed a spider.\n" +
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"It wriggled and jiggled and tickled inside her.\n" +
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"She swallowed the spider to catch the fly.\n" +
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"I don't know why she swallowed the fly. Perhaps she'll die.\n" +
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"\n" +
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"I know an old lady who swallowed a bird.\n" +
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"How absurd to swallow a bird!\n" +
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"She swallowed the bird to catch the spider that wriggled and jiggled and tickled inside her.\n" +
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"She swallowed the spider to catch the fly.\n" +
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"I don't know why she swallowed the fly. Perhaps she'll die.\n" +
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"\n" +
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"I know an old lady who swallowed a cat.\n" +
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"Imagine that, to swallow a cat!\n" +
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"She swallowed the cat to catch the bird.\n" +
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"She swallowed the bird to catch the spider that wriggled and jiggled and tickled inside her.\n" +
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"She swallowed the spider to catch the fly.\n" +
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"I don't know why she swallowed the fly. Perhaps she'll die.\n" +
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"\n" +
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"I know an old lady who swallowed a dog.\n" +
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"What a hog, to swallow a dog!\n" +
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"She swallowed the dog to catch the cat.\n" +
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"She swallowed the cat to catch the bird.\n" +
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"She swallowed the bird to catch the spider that wriggled and jiggled and tickled inside her.\n" +
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"She swallowed the spider to catch the fly.\n" +
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"I don't know why she swallowed the fly. Perhaps she'll die.\n" +
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"\n" +
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"I know an old lady who swallowed a goat.\n" +
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"Just opened her throat and swallowed a goat!\n" +
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"She swallowed the goat to catch the dog.\n" +
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"She swallowed the dog to catch the cat.\n" +
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"She swallowed the cat to catch the bird.\n" +
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"She swallowed the bird to catch the spider that wriggled and jiggled and tickled inside her.\n" +
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"She swallowed the spider to catch the fly.\n" +
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"I don't know why she swallowed the fly. Perhaps she'll die.\n" +
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"\n" +
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"I know an old lady who swallowed a cow.\n" +
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"I don't know how she swallowed a cow!\n" +
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"She swallowed the cow to catch the goat.\n" +
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"She swallowed the goat to catch the dog.\n" +
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"She swallowed the dog to catch the cat.\n" +
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"She swallowed the cat to catch the bird.\n" +
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"She swallowed the bird to catch the spider that wriggled and jiggled and tickled inside her.\n" +
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"She swallowed the spider to catch the fly.\n" +
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"I don't know why she swallowed the fly. Perhaps she'll die.\n" +
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"\n" +
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"I know an old lady who swallowed a horse.\n" +
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"She's dead, of course!";
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assertEquals(expected, foodChain.verses(startVerse, endVerse));
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}
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}

‎exercises/settings.gradle‎

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include 'difference-of-squares'
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include 'etl'
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include 'flatten-array'
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include 'food-chain'
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include 'gigasecond'
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include 'grade-school'
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include 'hamming'

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