diff --git a/config.json b/config.json index 429e18dc..26eca199 100644 --- a/config.json +++ b/config.json @@ -820,6 +820,17 @@ "difficulty": 5, "topics": ["arrays", "generics", "recursion", "searching"] }, + { + "slug": "bowling", + "name": "Bowling", + "uuid": "ae084405-48d7-43ea-9bc5-6c4ebae4c1ef", + "practices": [], + "prerequisites": [ + "for-loops", + "arrays" + ], + "difficulty": 6 + }, { "slug": "etl", "name": "ETL", diff --git a/exercises/practice/bowling/.docs/instructions.md b/exercises/practice/bowling/.docs/instructions.md new file mode 100644 index 00000000..60ccad1b --- /dev/null +++ b/exercises/practice/bowling/.docs/instructions.md @@ -0,0 +1,56 @@ +# Instructions + +Score a bowling game. + +Bowling is a game where players roll a heavy ball to knock down pins arranged in a triangle. +Write code to keep track of the score of a game of bowling. + +## Scoring Bowling + +The game consists of 10 frames. +A frame is composed of one or two ball throws with 10 pins standing at frame initialization. +There are three cases for the tabulation of a frame. + +- An open frame is where a score of less than 10 is recorded for the frame. + In this case the score for the frame is the number of pins knocked down. + +- A spare is where all ten pins are knocked down by the second throw. + The total value of a spare is 10 plus the number of pins knocked down in their next throw. + +- A strike is where all ten pins are knocked down by the first throw. + The total value of a strike is 10 plus the number of pins knocked down in the next two throws. + If a strike is immediately followed by a second strike, then the value of the first strike cannot be determined until the ball is thrown one more time. + +Here is a three frame example: + +| Frame 1 | Frame 2 | Frame 3 | +| :--------: | :--------: | :--------------: | +| X (strike) | 5/ (spare) | 9 0 (open frame) | + +Frame 1 is (10 + 5 + 5) = 20 + +Frame 2 is (5 + 5 + 9) = 19 + +Frame 3 is (9 + 0) = 9 + +This means the current running total is 48. + +The tenth frame in the game is a special case. +If someone throws a spare or a strike then they get one or two fill balls respectively. +Fill balls exist to calculate the total of the 10th frame. +Scoring a strike or spare on the fill ball does not give the player more fill balls. +The total value of the 10th frame is the total number of pins knocked down. + +For a tenth frame of X1/ (strike and a spare), the total value is 20. + +For a tenth frame of XXX (three strikes), the total value is 30. + +## Requirements + +Write code to keep track of the score of a game of bowling. +It should support two operations: + +- `roll(pins : int)` is called each time the player rolls a ball. + The argument is the number of pins knocked down. +- `score() : int` is called only at the very end of the game. + It returns the total score for that game. diff --git a/exercises/practice/bowling/.meta/config.json b/exercises/practice/bowling/.meta/config.json new file mode 100644 index 00000000..c7bbce66 --- /dev/null +++ b/exercises/practice/bowling/.meta/config.json @@ -0,0 +1,20 @@ +{ + "authors": [ + "vmichalak" + ], + "contributors": [], + "files": { + "solution": [ + "src/main/kotlin/BowlingGame.kt" + ], + "test": [ + "src/test/kotlin/BowlingGameTest.kt" + ], + "example": [ + ".meta/src/reference/kotlin/BowlingGame.kt" + ] + }, + "blurb": "Score a bowling game.", + "source": "The Bowling Game Kata from UncleBob", + "source_url": "https://web.archive.org/web/20221001111000/http://butunclebob.com/ArticleS.UncleBob.TheBowlingGameKata" +} diff --git a/exercises/practice/bowling/.meta/src/reference/kotlin/BowlingGame.kt b/exercises/practice/bowling/.meta/src/reference/kotlin/BowlingGame.kt new file mode 100644 index 00000000..7b87e0d6 --- /dev/null +++ b/exercises/practice/bowling/.meta/src/reference/kotlin/BowlingGame.kt @@ -0,0 +1,40 @@ +class BowlingGame { + private var builder = Frame.Builder() + private val frames = mutableListOf() + + private val isLastFrame: Boolean + get() = frames.size == 11 || (frames.size == 10 && !frames[9].isStrike) + + private val isGameOver: Boolean + get() = when { + frames.size < 10 -> false + frames.size == 10 -> !frames[9].isSpare + frames.size == 11 -> !frames[9].isStrike || !frames[10].isStrike + else -> true + } + + fun roll(pins: Int) { + if(isGameOver) { + throw IllegalStateException("Cannot roll after game is over") + } + builder.withRoll(pins); + if (builder.isComplete) { + frames.add(builder.build()); + builder = Frame.Builder(); + } else if (isLastFrame) { + frames.add(builder.build()); + } + } + + fun score(): Int { + if(!isGameOver) { + throw IllegalStateException("Score cannot be taken until the end of the game") + } + return (0 until 10).sumOf { index -> + val current = frames[index] + val next = frames.getOrElse(index + 1) { Frame.EMPTY } + val nextNext = frames.getOrElse(index + 2) { Frame.EMPTY } + current.score(next, nextNext) + } + } +} diff --git a/exercises/practice/bowling/.meta/src/reference/kotlin/Frame.kt b/exercises/practice/bowling/.meta/src/reference/kotlin/Frame.kt new file mode 100644 index 00000000..e0de2743 --- /dev/null +++ b/exercises/practice/bowling/.meta/src/reference/kotlin/Frame.kt @@ -0,0 +1,50 @@ +class Frame(val first: Int, val second: Int) { + companion object { + val EMPTY = Frame(0, 0) + } + + val frameScore: Int + get() = first + second + + val isStrike: Boolean + get() = (first == 10) + + val isSpare: Boolean + get() = (frameScore == 10) + + fun score(next: Frame, nextNext: Frame) = frameScore + when { + isStrike -> nextNextRoll(next, nextNext) + next.first + isSpare -> next.first + else -> 0 + } + + private fun nextNextRoll(next: Frame, nextNext: Frame) = + if(next.isStrike) { nextNext.first } else { next.second } + + class Builder { + private val rolls = mutableListOf() + + val count: Int + get() = rolls.sum() + + val isStrike: Boolean + get() = rolls.size == 1 && rolls[0] == 10 + + val isComplete: Boolean + get() = rolls.size == 2 || isStrike + + fun withRoll(pins: Int): Builder { + if(isComplete) { throw IllegalStateException("Frame complete") } + if(pins < 0) { throw IllegalStateException("Negative roll is invalid") } + if(count + pins > 10) { throw IllegalStateException("Pin count exceeds pins on the lane") } + rolls.add(pins) + return this + } + + public fun build(): Frame = when (rolls.size) { + 2 -> Frame(rolls[0], rolls[1]) + 1 -> Frame(rolls[0], 0) + else -> throw AssertionError("Frame has invalid number of rolls: " + rolls.size) + } + } +} diff --git a/exercises/practice/bowling/.meta/version b/exercises/practice/bowling/.meta/version new file mode 100644 index 00000000..3eefcb9d --- /dev/null +++ b/exercises/practice/bowling/.meta/version @@ -0,0 +1 @@ +1.0.0 diff --git a/exercises/practice/bowling/build.gradle.kts b/exercises/practice/bowling/build.gradle.kts new file mode 100644 index 00000000..3db5dc4f --- /dev/null +++ b/exercises/practice/bowling/build.gradle.kts @@ -0,0 +1,23 @@ +import org.gradle.api.tasks.testing.logging.TestExceptionFormat + +plugins { + kotlin("jvm") +} + +repositories { + mavenCentral() +} + +dependencies { + implementation(kotlin("stdlib-jdk8")) + + testImplementation("junit:junit:4.13.2") + testImplementation(kotlin("test-junit")) +} + +tasks.withType { + testLogging { + exceptionFormat = TestExceptionFormat.FULL + events("passed", "failed", "skipped") + } +} diff --git a/exercises/practice/bowling/gradle/wrapper/gradle-wrapper.jar b/exercises/practice/bowling/gradle/wrapper/gradle-wrapper.jar new file mode 100644 index 00000000..7f93135c Binary files /dev/null and b/exercises/practice/bowling/gradle/wrapper/gradle-wrapper.jar differ diff --git a/exercises/practice/bowling/gradle/wrapper/gradle-wrapper.properties b/exercises/practice/bowling/gradle/wrapper/gradle-wrapper.properties new file mode 100644 index 00000000..3fa8f862 --- /dev/null +++ b/exercises/practice/bowling/gradle/wrapper/gradle-wrapper.properties @@ -0,0 +1,7 @@ +distributionBase=GRADLE_USER_HOME +distributionPath=wrapper/dists +distributionUrl=https\://services.gradle.org/distributions/gradle-8.4-bin.zip +networkTimeout=10000 +validateDistributionUrl=true +zipStoreBase=GRADLE_USER_HOME +zipStorePath=wrapper/dists diff --git a/exercises/practice/bowling/gradlew b/exercises/practice/bowling/gradlew new file mode 100644 index 00000000..1aa94a42 --- /dev/null +++ b/exercises/practice/bowling/gradlew @@ -0,0 +1,249 @@ +#!/bin/sh + +# +# Copyright © 2015-2021 the original authors. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# https://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +# + +############################################################################## +# +# Gradle start up script for POSIX generated by Gradle. +# +# Important for running: +# +# (1) You need a POSIX-compliant shell to run this script. If your /bin/sh is +# noncompliant, but you have some other compliant shell such as ksh or +# bash, then to run this script, type that shell name before the whole +# command line, like: +# +# ksh Gradle +# +# Busybox and similar reduced shells will NOT work, because this script +# requires all of these POSIX shell features: +# * functions; +# * expansions «$var», «${var}», «${var:-default}», «${var+SET}», +# «${var#prefix}», «${var%suffix}», and «$( cmd )»; +# * compound commands having a testable exit status, especially «case»; +# * various built-in commands including «command», «set», and «ulimit». +# +# Important for patching: +# +# (2) This script targets any POSIX shell, so it avoids extensions provided +# by Bash, Ksh, etc; in particular arrays are avoided. +# +# The "traditional" practice of packing multiple parameters into a +# space-separated string is a well documented source of bugs and security +# problems, so this is (mostly) avoided, by progressively accumulating +# options in "$@", and eventually passing that to Java. +# +# Where the inherited environment variables (DEFAULT_JVM_OPTS, JAVA_OPTS, +# and GRADLE_OPTS) rely on word-splitting, this is performed explicitly; +# see the in-line comments for details. +# +# There are tweaks for specific operating systems such as AIX, CygWin, +# Darwin, MinGW, and NonStop. +# +# (3) This script is generated from the Groovy template +# https://github.com/gradle/gradle/blob/HEAD/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt +# within the Gradle project. +# +# You can find Gradle at https://github.com/gradle/gradle/. +# +############################################################################## + +# Attempt to set APP_HOME + +# Resolve links: $0 may be a link +app_path=$0 + +# Need this for daisy-chained symlinks. +while + APP_HOME=${app_path%"${app_path##*/}"} # leaves a trailing /; empty if no leading path + [ -h "$app_path" ] +do + ls=$( ls -ld "$app_path" ) + link=${ls#*' -> '} + case $link in #( + /*) app_path=$link ;; #( + *) app_path=$APP_HOME$link ;; + esac +done + +# This is normally unused +# shellcheck disable=SC2034 +APP_BASE_NAME=${0##*/} +# Discard cd standard output in case $CDPATH is set (https://github.com/gradle/gradle/issues/25036) +APP_HOME=$( cd "${APP_HOME:-./}" > /dev/null && pwd -P ) || exit + +# Use the maximum available, or set MAX_FD != -1 to use that value. +MAX_FD=maximum + +warn () { + echo "$*" +} >&2 + +die () { + echo + echo "$*" + echo + exit 1 +} >&2 + +# OS specific support (must be 'true' or 'false'). +cygwin=false +msys=false +darwin=false +nonstop=false +case "$( uname )" in #( + CYGWIN* ) cygwin=true ;; #( + Darwin* ) darwin=true ;; #( + MSYS* | MINGW* ) msys=true ;; #( + NONSTOP* ) nonstop=true ;; +esac + +CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar + + +# Determine the Java command to use to start the JVM. +if [ -n "$JAVA_HOME" ] ; then + if [ -x "$JAVA_HOME/jre/sh/java" ] ; then + # IBM's JDK on AIX uses strange locations for the executables + JAVACMD=$JAVA_HOME/jre/sh/java + else + JAVACMD=$JAVA_HOME/bin/java + fi + if [ ! -x "$JAVACMD" ] ; then + die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME + +Please set the JAVA_HOME variable in your environment to match the +location of your Java installation." + fi +else + JAVACMD=java + if ! command -v java >/dev/null 2>&1 + then + die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. + +Please set the JAVA_HOME variable in your environment to match the +location of your Java installation." + fi +fi + +# Increase the maximum file descriptors if we can. +if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then + case $MAX_FD in #( + max*) + # In POSIX sh, ulimit -H is undefined. That's why the result is checked to see if it worked. + # shellcheck disable=SC2039,SC3045 + MAX_FD=$( ulimit -H -n ) || + warn "Could not query maximum file descriptor limit" + esac + case $MAX_FD in #( + '' | soft) :;; #( + *) + # In POSIX sh, ulimit -n is undefined. That's why the result is checked to see if it worked. + # shellcheck disable=SC2039,SC3045 + ulimit -n "$MAX_FD" || + warn "Could not set maximum file descriptor limit to $MAX_FD" + esac +fi + +# Collect all arguments for the java command, stacking in reverse order: +# * args from the command line +# * the main class name +# * -classpath +# * -D...appname settings +# * --module-path (only if needed) +# * DEFAULT_JVM_OPTS, JAVA_OPTS, and GRADLE_OPTS environment variables. + +# For Cygwin or MSYS, switch paths to Windows format before running java +if "$cygwin" || "$msys" ; then + APP_HOME=$( cygpath --path --mixed "$APP_HOME" ) + CLASSPATH=$( cygpath --path --mixed "$CLASSPATH" ) + + JAVACMD=$( cygpath --unix "$JAVACMD" ) + + # Now convert the arguments - kludge to limit ourselves to /bin/sh + for arg do + if + case $arg in #( + -*) false ;; # don't mess with options #( + /?*) t=${arg#/} t=/${t%%/*} # looks like a POSIX filepath + [ -e "$t" ] ;; #( + *) false ;; + esac + then + arg=$( cygpath --path --ignore --mixed "$arg" ) + fi + # Roll the args list around exactly as many times as the number of + # args, so each arg winds up back in the position where it started, but + # possibly modified. + # + # NB: a `for` loop captures its iteration list before it begins, so + # changing the positional parameters here affects neither the number of + # iterations, nor the values presented in `arg`. + shift # remove old arg + set -- "$@" "$arg" # push replacement arg + done +fi + + +# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. +DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"' + +# Collect all arguments for the java command: +# * DEFAULT_JVM_OPTS, JAVA_OPTS, JAVA_OPTS, and optsEnvironmentVar are not allowed to contain shell fragments, +# and any embedded shellness will be escaped. +# * For example: A user cannot expect ${Hostname} to be expanded, as it is an environment variable and will be +# treated as '${Hostname}' itself on the command line. + +set -- \ + "-Dorg.gradle.appname=$APP_BASE_NAME" \ + -classpath "$CLASSPATH" \ + org.gradle.wrapper.GradleWrapperMain \ + "$@" + +# Stop when "xargs" is not available. +if ! command -v xargs >/dev/null 2>&1 +then + die "xargs is not available" +fi + +# Use "xargs" to parse quoted args. +# +# With -n1 it outputs one arg per line, with the quotes and backslashes removed. +# +# In Bash we could simply go: +# +# readarray ARGS < <( xargs -n1 <<<"$var" ) && +# set -- "${ARGS[@]}" "$@" +# +# but POSIX shell has neither arrays nor command substitution, so instead we +# post-process each arg (as a line of input to sed) to backslash-escape any +# character that might be a shell metacharacter, then use eval to reverse +# that process (while maintaining the separation between arguments), and wrap +# the whole thing up as a single "set" statement. +# +# This will of course break if any of these variables contains a newline or +# an unmatched quote. +# + +eval "set -- $( + printf '%s\n' "$DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS" | + xargs -n1 | + sed ' s~[^-[:alnum:]+,./:=@_]~\\&~g; ' | + tr '\n' ' ' + )" '"$@"' + +exec "$JAVACMD" "$@" diff --git a/exercises/practice/bowling/gradlew.bat b/exercises/practice/bowling/gradlew.bat new file mode 100644 index 00000000..93e3f59f --- /dev/null +++ b/exercises/practice/bowling/gradlew.bat @@ -0,0 +1,92 @@ +@rem +@rem Copyright 2015 the original author or authors. +@rem +@rem Licensed under the Apache License, Version 2.0 (the "License"); +@rem you may not use this file except in compliance with the License. +@rem You may obtain a copy of the License at +@rem +@rem https://www.apache.org/licenses/LICENSE-2.0 +@rem +@rem Unless required by applicable law or agreed to in writing, software +@rem distributed under the License is distributed on an "AS IS" BASIS, +@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +@rem See the License for the specific language governing permissions and +@rem limitations under the License. +@rem + +@if "%DEBUG%"=="" @echo off +@rem ########################################################################## +@rem +@rem Gradle startup script for Windows +@rem +@rem ########################################################################## + +@rem Set local scope for the variables with windows NT shell +if "%OS%"=="Windows_NT" setlocal + +set DIRNAME=%~dp0 +if "%DIRNAME%"=="" set DIRNAME=. +@rem This is normally unused +set APP_BASE_NAME=%~n0 +set APP_HOME=%DIRNAME% + +@rem Resolve any "." and ".." in APP_HOME to make it shorter. +for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi + +@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. +set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m" + +@rem Find java.exe +if defined JAVA_HOME goto findJavaFromJavaHome + +set JAVA_EXE=java.exe +%JAVA_EXE% -version >NUL 2>&1 +if %ERRORLEVEL% equ 0 goto execute + +echo. +echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. +echo. +echo Please set the JAVA_HOME variable in your environment to match the +echo location of your Java installation. + +goto fail + +:findJavaFromJavaHome +set JAVA_HOME=%JAVA_HOME:"=% +set JAVA_EXE=%JAVA_HOME%/bin/java.exe + +if exist "%JAVA_EXE%" goto execute + +echo. +echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME% +echo. +echo Please set the JAVA_HOME variable in your environment to match the +echo location of your Java installation. + +goto fail + +:execute +@rem Setup the command line + +set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar + + +@rem Execute Gradle +"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %* + +:end +@rem End local scope for the variables with windows NT shell +if %ERRORLEVEL% equ 0 goto mainEnd + +:fail +rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of +rem the _cmd.exe /c_ return code! +set EXIT_CODE=%ERRORLEVEL% +if %EXIT_CODE% equ 0 set EXIT_CODE=1 +if not ""=="%GRADLE_EXIT_CONSOLE%" exit %EXIT_CODE% +exit /b %EXIT_CODE% + +:mainEnd +if "%OS%"=="Windows_NT" endlocal + +:omega diff --git a/exercises/practice/bowling/settings.gradle.kts b/exercises/practice/bowling/settings.gradle.kts new file mode 100644 index 00000000..054e2f7e --- /dev/null +++ b/exercises/practice/bowling/settings.gradle.kts @@ -0,0 +1,13 @@ +pluginManagement { + repositories { + mavenCentral() + gradlePluginPortal() + } + resolutionStrategy { + eachPlugin { + when (requested.id.id) { + "org.jetbrains.kotlin.jvm" -> useModule("org.jetbrains.kotlin:kotlin-gradle-plugin:1.6.0") + } + } + } +} diff --git a/exercises/practice/bowling/src/main/kotlin/BowlingGame.kt b/exercises/practice/bowling/src/main/kotlin/BowlingGame.kt new file mode 100644 index 00000000..6c9bd0ed --- /dev/null +++ b/exercises/practice/bowling/src/main/kotlin/BowlingGame.kt @@ -0,0 +1,9 @@ +class BowlingGame { + fun roll(pins: Int) { + TODO("Implement the function to complete the task") + } + + fun score() { + TODO("Implement the function to complete the task") + } +} diff --git a/exercises/practice/bowling/src/test/kotlin/BowlingGameTest.kt b/exercises/practice/bowling/src/test/kotlin/BowlingGameTest.kt new file mode 100644 index 00000000..719ca309 --- /dev/null +++ b/exercises/practice/bowling/src/test/kotlin/BowlingGameTest.kt @@ -0,0 +1,251 @@ +import org.junit.Ignore +import org.junit.Rule +import org.junit.rules.ExpectedException +import kotlin.test.Test +import kotlin.test.assertEquals + +class BowlingGameTest { + + @Rule + @JvmField + var expectedException: ExpectedException = ExpectedException.none() + + private fun playGame(rolls: IntArray): BowlingGame { + val game = BowlingGame() + rolls.forEach { + game.roll(it) + } + return game + } + + @Test + fun `should be able to score a game with all zeros`() { + val game = playGame(intArrayOf(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0)) + assertEquals(0, game.score()) + } + + @Test + @Ignore + fun `should be able to score a game with no strike or spares`() { + val game = playGame(intArrayOf(3, 6, 3, 6, 3, 6, 3, 6, 3, 6, 3, 6, 3, 6, 3, 6, 3, 6, 3, 6)) + assertEquals(90, game.score()) + } + + @Test + @Ignore + fun `a spare followed by zeros is worth ten points`() { + val game = playGame(intArrayOf(6, 4, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0)) + assertEquals(10, game.score()) + } + + @Test + @Ignore + fun `points scored in the roll after a spare are counted twice`() { + val game = playGame(intArrayOf(6, 4, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0)) + assertEquals(16, game.score()) + } + + @Test + @Ignore + fun `consecutive spares each get a one roll bonus`() { + val game = playGame(intArrayOf(5, 5, 3, 7, 4, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0)) + assertEquals(31, game.score()) + } + + @Test + @Ignore + fun `a spare in the last frame gets a one roll bonus that is counted once`() { + val game = playGame(intArrayOf(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 7, 3, 7)) + assertEquals(17, game.score()) + } + + @Test + @Ignore + fun `a strike earns ten points in frame with a single roll`() { + val game = playGame(intArrayOf(10, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0)) + assertEquals(10, game.score()) + } + + @Test + @Ignore + fun `points scored in the two rolls after a strike are counted twice as a bonus`() { + val game = playGame(intArrayOf(10, 5, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0)) + assertEquals(26, game.score()) + } + + @Test + @Ignore + fun `consecutive strikes each get the two roll bonus`() { + val game = playGame(intArrayOf(10, 10, 10, 5, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0)) + assertEquals(81, game.score()) + } + + @Test + @Ignore + fun `a strike in the last frame gets a two roll bonus that is counted once`() { + val game = playGame(intArrayOf(10, 10, 10, 5, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0)) + assertEquals(81, game.score()) + } + + @Test + @Ignore + fun `rolling a spare with the two roll bonus does not get a bonus roll`() { + val game = playGame(intArrayOf(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 10, 7, 3)) + assertEquals(20, game.score()) + } + + @Test + @Ignore + fun `strikes with the two roll bonus do not get bonus rolls`() { + val game = playGame(intArrayOf(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 10, 10, 10)) + assertEquals(30, game.score()) + } + + @Test + @Ignore + fun `last two strikes followed by only last bonus with non strike points`() { + val game = playGame(intArrayOf(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 10, 10, 0, 1)) + assertEquals(31, game.score()) + } + + @Test + @Ignore + fun `a strike with the one roll bonus after a spare in the last frame does not get a bonus`() { + val game = playGame(intArrayOf(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 7, 3, 10)) + assertEquals(20, game.score()) + } + + @Test + @Ignore + fun `all strikes is a perfect game`() { + val game = playGame(intArrayOf(10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10)) + assertEquals(300, game.score()) + } + + @Test + @Ignore + fun `rolls can not score negative points`() { + expectedException.expect(IllegalStateException::class.java) + + playGame(intArrayOf(-1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0)) + } + + @Test + @Ignore + fun `a roll can not score more than 10 points`() { + expectedException.expect(IllegalStateException::class.java) + + playGame(intArrayOf(11, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0)) + } + + @Test + @Ignore + fun `two rolls in a frame can not score more than 10 points`() { + expectedException.expect(IllegalStateException::class.java) + + playGame(intArrayOf(5, 6, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0)) + } + + @Test + @Ignore + fun `bonus roll after a strike in the last frame can not score more than 10 points`() { + expectedException.expect(IllegalStateException::class.java) + + playGame(intArrayOf(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 10, 11, 0)) + } + + @Test + @Ignore + fun `two bonus rolls after a strike in the last frame can not score more than 10 points`() { + expectedException.expect(IllegalStateException::class.java) + + playGame(intArrayOf(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 10, 5, 6)) + } + + @Test + @Ignore + fun `two bonus rolls after a strike in the last frame can score more than 10 points if one is a strike`() { + val game = playGame(intArrayOf(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 10, 10, 6)) + assertEquals(26, game.score()) + } + + @Test + @Ignore + fun `the second bonus rolls after a strike in the last frame can not be a strike if the first one is not a strike`() { + expectedException.expect(IllegalStateException::class.java) + + playGame(intArrayOf(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 10, 6, 10)) + } + + @Test + @Ignore + fun `second bonus roll after a strike in the last frame can not score more than 10 points`() { + expectedException.expect(IllegalStateException::class.java) + + playGame(intArrayOf(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 10, 10, 11)) + } + + @Test + @Ignore + fun `an unstarted game can not be scored`() { + expectedException.expect(IllegalStateException::class.java) + + playGame(intArrayOf()).score() + } + + @Test + @Ignore + fun `an incomplete game can not be scored`() { + expectedException.expect(IllegalStateException::class.java) + + playGame(intArrayOf(0, 0, 1)).score() + } + + @Test + @Ignore + fun `can not roll if game already has ten frames`() { + expectedException.expect(IllegalStateException::class.java) + + playGame(intArrayOf(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0)) + } + + @Test + @Ignore + fun `bonus rolls for a strike in the last frame must be rolled before score can be calculated`() { + expectedException.expect(IllegalStateException::class.java) + + playGame(intArrayOf(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 10)).score() + } + + @Test + @Ignore + fun `both bonus rolls for a strike in the last frame must be rolled before score can be calculated`() { + expectedException.expect(IllegalStateException::class.java) + + playGame(intArrayOf(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 10, 10)).score() + } + + @Test + @Ignore + fun `bonus roll for a spare in the last frame must be rolled before score can be calculated`() { + expectedException.expect(IllegalStateException::class.java) + + playGame(intArrayOf(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 7, 3)).score() + } + + @Test + @Ignore + fun `can not roll after bonus roll for spare`() { + expectedException.expect(IllegalStateException::class.java) + + playGame(intArrayOf(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 7, 3, 2, 2)).score() + } + + @Test + @Ignore + fun `can not roll after bonus roll for strike`() { + expectedException.expect(IllegalStateException::class.java) + + playGame(intArrayOf(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 10, 3, 2, 2)).score() + } +} diff --git a/exercises/settings.gradle.kts b/exercises/settings.gradle.kts index 70a6ce78..3f696875 100644 --- a/exercises/settings.gradle.kts +++ b/exercises/settings.gradle.kts @@ -13,6 +13,7 @@ include( "practice:binary-search", "practice:binary-search-tree", "practice:bob", + "practice:bowling", "practice:change", "practice:clock", "practice:collatz-conjecture",