diff --git a/kotlin/allergies/HELP.md b/kotlin/allergies/HELP.md
new file mode 100644
index 0000000..84192f5
--- /dev/null
+++ b/kotlin/allergies/HELP.md
@@ -0,0 +1,48 @@
+# Help
+
+## Running the tests
+
+Execute the tests with:
+
+```bash
+$ gradlew test
+```
+
+> Use `gradlew.bat` if you're on Windows
+
+## Skipped tests
+
+In the test suites all tests but the first have been skipped.
+
+Once you get a test passing, you can enable the next one by removing the
+`@Ignore` annotation.
+
+## Submitting your solution
+
+You can submit your solution using the `exercism submit src/main/kotlin/Allergies.kt` command.
+This command will upload your solution to the Exercism website and print the solution page's URL.
+
+It's possible to submit an incomplete solution which allows you to:
+
+- See how others have completed the exercise
+- Request help from a mentor
+
+## Need to get help?
+
+If you'd like help solving the exercise, check the following pages:
+
+- The [Kotlin track's documentation](https://exercism.org/docs/tracks/kotlin)
+- The [Kotlin track's programming category on the forum](https://forum.exercism.org/c/programming/kotlin)
+- [Exercism's programming category on the forum](https://forum.exercism.org/c/programming/5)
+- The [Frequently Asked Questions](https://exercism.org/docs/using/faqs)
+
+Should those resources not suffice, you could submit your (incomplete) solution to request mentoring.
+
+To get help if you're having trouble, you can use one of the following resources:
+
+- [Kotlin Documentation](https://kotlinlang.org/docs/reference/)
+- [Kotlin Forums](https://discuss.kotlinlang.org/)
+- [Kotlin Slack Channel](http://kotlinlang.slack.com/): [get invite here](http://slack.kotlinlang.org/)
+- [Stack Overflow](https://stackoverflow.com/questions/tagged/kotlin)
+- [Reddit Channel](https://www.reddit.com/r/kotlin)
+- [Twitter](https://twitter.com/kotlin)
\ No newline at end of file
diff --git a/kotlin/allergies/README.md b/kotlin/allergies/README.md
new file mode 100644
index 0000000..01c8606
--- /dev/null
+++ b/kotlin/allergies/README.md
@@ -0,0 +1,58 @@
+# Allergies
+
+Welcome to Allergies on Exercism's Kotlin Track.
+If you need help running the tests or submitting your code, check out `HELP.md`.
+
+## Instructions
+
+Given a person's allergy score, determine whether or not they're allergic to a given item, and their full list of allergies.
+
+An allergy test produces a single numeric score which contains the
+information about all the allergies the person has (that they were
+tested for).
+
+The list of items (and their value) that were tested are:
+
+* eggs (1)
+* peanuts (2)
+* shellfish (4)
+* strawberries (8)
+* tomatoes (16)
+* chocolate (32)
+* pollen (64)
+* cats (128)
+
+So if Tom is allergic to peanuts and chocolate, he gets a score of 34.
+
+Now, given just that score of 34, your program should be able to say:
+
+- Whether Tom is allergic to any one of those allergens listed above.
+- All the allergens Tom is allergic to.
+
+Note: a given score may include allergens **not** listed above (i.e.
+allergens that score 256, 512, 1024, etc.).  Your program should
+ignore those components of the score.  For example, if the allergy
+score is 257, your program should only report the eggs (1) allergy.
+
+## Source
+
+### Created by
+
+- @sdavids13
+
+### Contributed to by
+
+- @dector
+- @eparovyshnaya
+- @jtigger
+- @lihofm
+- @mdowds
+- @nithia
+- @sjwarner-bp
+- @SleeplessByte
+- @stkent
+- @uzilan
+
+### Based on
+
+Jumpstart Lab Warm-up - http://jumpstartlab.com
\ No newline at end of file
diff --git a/kotlin/allergies/build.gradle.kts b/kotlin/allergies/build.gradle.kts
new file mode 100644
index 0000000..3db5dc4
--- /dev/null
+++ b/kotlin/allergies/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<Test> {
+    testLogging {
+        exceptionFormat = TestExceptionFormat.FULL
+        events("passed", "failed", "skipped")
+    }
+}
diff --git a/kotlin/allergies/gradle/wrapper/gradle-wrapper.jar b/kotlin/allergies/gradle/wrapper/gradle-wrapper.jar
new file mode 100644
index 0000000..7f93135
Binary files /dev/null and b/kotlin/allergies/gradle/wrapper/gradle-wrapper.jar differ
diff --git a/kotlin/allergies/gradle/wrapper/gradle-wrapper.properties b/kotlin/allergies/gradle/wrapper/gradle-wrapper.properties
new file mode 100644
index 0000000..3fa8f86
--- /dev/null
+++ b/kotlin/allergies/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/kotlin/allergies/gradlew b/kotlin/allergies/gradlew
new file mode 100644
index 0000000..1aa94a4
--- /dev/null
+++ b/kotlin/allergies/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/kotlin/allergies/gradlew.bat b/kotlin/allergies/gradlew.bat
new file mode 100644
index 0000000..93e3f59
--- /dev/null
+++ b/kotlin/allergies/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/kotlin/allergies/settings.gradle.kts b/kotlin/allergies/settings.gradle.kts
new file mode 100644
index 0000000..054e2f7
--- /dev/null
+++ b/kotlin/allergies/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/kotlin/allergies/src/main/kotlin/Allergen.kt b/kotlin/allergies/src/main/kotlin/Allergen.kt
new file mode 100644
index 0000000..7444e71
--- /dev/null
+++ b/kotlin/allergies/src/main/kotlin/Allergen.kt
@@ -0,0 +1,10 @@
+enum class Allergen(val score: Int) {
+    EGGS(1),
+    PEANUTS(2),
+    SHELLFISH(4),
+    STRAWBERRIES(8),
+    TOMATOES(16),
+    CHOCOLATE(32),
+    POLLEN(64),
+    CATS(128)
+}
diff --git a/kotlin/allergies/src/main/kotlin/Allergies.kt b/kotlin/allergies/src/main/kotlin/Allergies.kt
new file mode 100644
index 0000000..fe38cce
--- /dev/null
+++ b/kotlin/allergies/src/main/kotlin/Allergies.kt
@@ -0,0 +1,5 @@
+class Allergies(private val score: Int) {
+    fun getList(): List<Allergen> = Allergen.values().filter { isAllergicTo(it) }
+
+    fun isAllergicTo(allergen: Allergen): Boolean = score and allergen.score != 0
+}
diff --git a/kotlin/allergies/src/test/kotlin/AllergiesTest.kt b/kotlin/allergies/src/test/kotlin/AllergiesTest.kt
new file mode 100644
index 0000000..28faecc
--- /dev/null
+++ b/kotlin/allergies/src/test/kotlin/AllergiesTest.kt
@@ -0,0 +1,177 @@
+import org.junit.Test
+import kotlin.test.assertEquals
+import kotlin.test.assertFalse
+import kotlin.test.assertTrue
+
+class AllergiesTest {
+  @Test
+  fun `eggs - not allergic to anything`() = assertIsNotAllergic(0, Allergen.EGGS)
+
+  @Test
+  fun `eggs - allergic only to eggs`() = assertIsAllergic(1, Allergen.EGGS)
+
+  @Test
+  fun `eggs - allergic to eggs and something else`() = assertIsAllergic(3, Allergen.EGGS)
+
+  @Test
+  fun `eggs - allergic to something, but not eggs`() = assertIsNotAllergic(2, Allergen.EGGS)
+
+  @Test
+  fun `eggs - allergic to everything`() = assertIsAllergic(255, Allergen.EGGS)
+
+  @Test
+  fun `peanuts - not allergic to anything`() = assertIsNotAllergic(0, Allergen.PEANUTS)
+
+  @Test
+  fun `peanuts - allergic only to peanuts`() = assertIsAllergic(2, Allergen.PEANUTS)
+
+  @Test
+  fun `peanuts - allergic to peanuts and something else`() = assertIsAllergic(7, Allergen.PEANUTS)
+
+  @Test
+  fun `peanuts - allergic to something, but not peanuts`() = assertIsNotAllergic(5, Allergen.PEANUTS)
+
+  @Test
+  fun `peanuts - allergic to everything`() = assertIsAllergic(255, Allergen.PEANUTS)
+
+  @Test
+  fun `shellfish - not allergic to anything`() = assertIsNotAllergic(0, Allergen.SHELLFISH)
+
+  @Test
+  fun `shellfish - allergic only to shellfish`() = assertIsAllergic(4, Allergen.SHELLFISH)
+
+  @Test
+  fun `shellfish - allergic to shellfish and something else`() = assertIsAllergic(14, Allergen.SHELLFISH)
+
+  @Test
+  fun `shellfish - allergic to something, but not shellfish`() = assertIsNotAllergic(10, Allergen.SHELLFISH)
+
+  @Test
+  fun `shellfish - allergic to everything`() = assertIsAllergic(255, Allergen.SHELLFISH)
+
+  @Test
+  fun `strawberries - not allergic to anything`() = assertIsNotAllergic(0, Allergen.STRAWBERRIES)
+
+  @Test
+  fun `strawberries - allergic only to strawberries`() = assertIsAllergic(8, Allergen.STRAWBERRIES)
+
+  @Test
+  fun `strawberries - allergic to strawberries and something else`() = assertIsAllergic(28, Allergen.STRAWBERRIES)
+
+  @Test
+  fun `strawberries - allergic to something, but not strawberries`() = assertIsNotAllergic(20, Allergen.STRAWBERRIES)
+
+  @Test
+  fun `strawberries - allergic to everything`() = assertIsAllergic(255, Allergen.STRAWBERRIES)
+
+  @Test
+  fun `tomatoes - not allergic to anything`() = assertIsNotAllergic(0, Allergen.TOMATOES)
+
+  @Test
+  fun `tomatoes - allergic only to tomatoes`() = assertIsAllergic(16, Allergen.TOMATOES)
+
+  @Test
+  fun `tomatoes - allergic to tomatoes and something else`() = assertIsAllergic(56, Allergen.TOMATOES)
+
+  @Test
+  fun `tomatoes - allergic to something, but not tomatoes`() = assertIsNotAllergic(40, Allergen.TOMATOES)
+
+  @Test
+  fun `tomatoes - allergic to everything`() = assertIsAllergic(255, Allergen.TOMATOES)
+
+  @Test
+  fun `chocolate - not allergic to anything`() = assertIsNotAllergic(0, Allergen.CHOCOLATE)
+
+  @Test
+  fun `chocolate - allergic only to chocolate`() = assertIsAllergic(32, Allergen.CHOCOLATE)
+
+  @Test
+  fun `chocolate - allergic to chocolate and something else`() = assertIsAllergic(112, Allergen.CHOCOLATE)
+
+  @Test
+  fun `chocolate - allergic to something, but not chocolate`() = assertIsNotAllergic(80, Allergen.CHOCOLATE)
+
+  @Test
+  fun `chocolate - allergic to everything`() = assertIsAllergic(255, Allergen.CHOCOLATE)
+
+  @Test
+  fun `pollen - not allergic to anything`() = assertIsNotAllergic(0, Allergen.POLLEN)
+
+  @Test
+  fun `pollen - allergic only to pollen`() = assertIsAllergic(64, Allergen.POLLEN)
+
+  @Test
+  fun `pollen - allergic to pollen and something else`() = assertIsAllergic(224, Allergen.POLLEN)
+
+  @Test
+  fun `pollen - allergic to something, but not pollen`() = assertIsNotAllergic(160, Allergen.POLLEN)
+
+  @Test
+  fun `pollen - allergic to everything`() = assertIsAllergic(255, Allergen.POLLEN)
+
+  @Test
+  fun `cats - not allergic to anything`() = assertIsNotAllergic(0, Allergen.CATS)
+
+  @Test
+  fun `cats - allergic only to cats`() = assertIsAllergic(128, Allergen.CATS)
+
+  @Test
+  fun `cats - allergic to cats and something else`() = assertIsAllergic(192, Allergen.CATS)
+
+  @Test
+  fun `cats - allergic to something, but not cats`() = assertIsNotAllergic(64, Allergen.CATS)
+
+  @Test
+  fun `cats - allergic to everything`() = assertIsAllergic(255, Allergen.CATS)
+
+  @Test
+  fun `list - no allergies`() = assertAllergens(0, emptyList())
+
+  @Test
+  fun `list - just eggs`() = assertAllergens(
+    1,
+    listOf(Allergen.EGGS)
+  )
+
+  @Test
+  fun `list - just peanuts`() = assertAllergens(
+    2,
+    listOf(Allergen.PEANUTS)
+  )
+
+  @Test
+  fun `list - eggs and peanuts`() = assertAllergens(
+    3,
+    listOf(Allergen.EGGS, Allergen.PEANUTS)
+  )
+
+  @Test
+  fun `list - more than eggs but not peanuts`() = assertAllergens(
+    5,
+    listOf(Allergen.EGGS, Allergen.SHELLFISH)
+  )
+
+  @Test
+  fun `list - lots of stuff`() = assertAllergens(
+    248,
+    listOf(Allergen.STRAWBERRIES, Allergen.TOMATOES, Allergen.CHOCOLATE, Allergen.POLLEN, Allergen.CATS)
+  )
+
+  @Test
+  fun `list - everything`() = assertAllergens(
+    255,
+    Allergen.values().toList()
+  )
+
+  @Test
+  fun `list - no allergen score parts`() = assertAllergens(
+    509,
+    Allergen.values().toList() - Allergen.PEANUTS
+  )
+}
+
+private fun assertIsAllergic(score: Int, allergen: Allergen) = assertTrue(Allergies(score).isAllergicTo(allergen))
+
+private fun assertIsNotAllergic(score: Int, allergen: Allergen) = assertFalse(Allergies(score).isAllergicTo(allergen))
+
+private fun assertAllergens(score: Int, allergens: List<Allergen>) = assertEquals(allergens, Allergies(score).getList())