kindergarten-garden

elixir/kindergarten-garden/.exercism/config.json

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+{
+  "authors": [
+    "devonestes"
+  ],
+  "contributors": [
+    "angelikatyborska",
+    "Cohen-Carlisle",
+    "jwworth",
+    "lpil",
+    "nathanielknight",
+    "neenjaw",
+    "parkerl",
+    "sotojuan"
+  ],
+  "files": {
+    "solution": [
+      "lib/garden.ex"
+    ],
+    "test": [
+      "test/garden_test.exs"
+    ],
+    "example": [
+      ".meta/example.ex"
+    ]
+  },
+  "blurb": "Given a diagram, determine which plants each child in the kindergarten class is responsible for.",
+  "source": "Exercise by the JumpstartLab team for students at The Turing School of Software and Design.",
+  "source_url": "https://turing.edu"
+}

elixir/kindergarten-garden/.exercism/metadata.json

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+{"track":"elixir","exercise":"kindergarten-garden","id":"9527c47ddff04eb9a3996d116c972a94","url":"https://exercism.org/tracks/elixir/exercises/kindergarten-garden","handle":"negrienko","is_requester":true,"auto_approve":false}

elixir/kindergarten-garden/.formatter.exs

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+# Used by "mix format"
+[
+  inputs: ["{mix,.formatter}.exs", "{config,lib,test}/**/*.{ex,exs}"]
+]

elixir/kindergarten-garden/.gitignore

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+# The directory Mix will write compiled artifacts to.
+/_build/
+
+# If you run "mix test --cover", coverage assets end up here.
+/cover/
+
+# The directory Mix downloads your dependencies sources to.
+/deps/
+
+# Where third-party dependencies like ExDoc output generated docs.
+/doc/
+
+# Ignore .fetch files in case you like to edit your project deps locally.
+/.fetch
+
+# If the VM crashes, it generates a dump, let's ignore it too.
+erl_crash.dump
+
+# Also ignore archive artifacts (built via "mix archive.build").
+*.ez
+
+# Ignore package tarball (built via "mix hex.build").
+kindergarten_garden-*.tar
+

elixir/kindergarten-garden/HELP.md

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+# Help
+
+## Running the tests
+
+From the terminal, change to the base directory of the exercise then execute the tests with:
+
+```bash
+$ mix test
+```
+
+This will execute the test file found in the `test` subfolder -- a file ending in `_test.exs`
+
+Documentation:
+
+* [`mix test` - Elixir's test execution tool](https://hexdocs.pm/mix/Mix.Tasks.Test.html)
+* [`ExUnit` - Elixir's unit test library](https://hexdocs.pm/ex_unit/ExUnit.html)
+
+## Pending tests
+
+In test suites of practice exercises, all but the first test have been tagged to be skipped.
+
+Once you get a test passing, you can unskip the next one by commenting out the relevant `@tag :pending` with a `#` symbol.
+
+For example:
+
+```elixir
+# @tag :pending
+test "shouting" do
+  assert Bob.hey("WATCH OUT!") == "Whoa, chill out!"
+end
+```
+
+If you wish to run all tests at once, you can include all skipped test by using the `--include` flag on the `mix test` command:
+
+```bash
+$ mix test --include pending
+```
+
+Or, you can enable all the tests by commenting out the `ExUnit.configure` line in the file `test/test_helper.exs`.
+
+```elixir
+# ExUnit.configure(exclude: :pending, trace: true)
+```
+
+## Useful `mix test` options
+
+* `test/<FILE>.exs:LINENUM` - runs only a single test, the test from `<FILE>.exs` whose definition is on line `LINENUM`
+* `--failed` - runs only tests that failed the last time they ran
+* `--max-failures` - the suite stops evaluating tests when this number of test failures
+is reached
+* `--seed 0` - disables randomization so the tests in a single file will always be ran
+in the same order they were defined in
+
+## Submitting your solution
+
+You can submit your solution using the `exercism submit lib/garden.ex` 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 [Elixir track's documentation](https://exercism.org/docs/tracks/elixir)
+- The [Elixir track's programming category on the forum](https://forum.exercism.org/c/programming/elixir)
+- [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.
+
+If you're stuck on something, it may help to look at some of the [available resources](https://exercism.org/docs/tracks/elixir/resources) out there where answers might be found.

elixir/kindergarten-garden/README.md

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+# Kindergarten Garden
+
+Welcome to Kindergarten Garden on Exercism's Elixir Track.
+If you need help running the tests or submitting your code, check out `HELP.md`.
+
+## Introduction
+
+The kindergarten class is learning about growing plants.
+The teacher thought it would be a good idea to give the class seeds to plant and grow in the dirt.
+To this end, the children have put little cups along the window sills and planted one type of plant in each cup.
+The children got to pick their favorites from four available types of seeds: grass, clover, radishes, and violets.
+
+## Instructions
+
+Your task is to, given a diagram, determine which plants each child in the kindergarten class is responsible for.
+
+There are 12 children in the class:
+
+- Alice, Bob, Charlie, David, Eve, Fred, Ginny, Harriet, Ileana, Joseph, Kincaid, and Larry.
+
+Four different types of seeds are planted:
+
+| Plant  | Diagram encoding |
+| ------ | ---------------- |
+| Grass  | G                |
+| Clover | C                |
+| Radish | R                |
+| Violet | V                |
+
+Each child gets four cups, two on each row:
+
+```text
+[window][window][window]
+........................ # each dot represents a cup
+........................
+```
+
+Their teacher assigns cups to the children alphabetically by their names, which means that Alice comes first and Larry comes last.
+
+Here is an example diagram representing Alice's plants:
+
+```text
+[window][window][window]
+VR......................
+RG......................
+```
+
+In the first row, nearest the windows, she has a violet and a radish.
+In the second row she has a radish and some grass.
+
+Your program will be given the plants from left-to-right starting with the row nearest the windows.
+From this, it should be able to determine which plants belong to each student.
+
+For example, if it's told that the garden looks like so:
+
+```text
+[window][window][window]
+VRCGVVRVCGGCCGVRGCVCGCGV
+VRCCCGCRRGVCGCRVVCVGCGCV
+```
+
+Then if asked for Alice's plants, it should provide:
+
+- Violets, radishes, violets, radishes
+
+While asking for Bob's plants would yield:
+
+- Clover, grass, clover, clover
+
+## Source
+
+### Created by
+
+- @devonestes
+
+### Contributed to by
+
+- @angelikatyborska
+- @Cohen-Carlisle
+- @jwworth
+- @lpil
+- @nathanielknight
+- @neenjaw
+- @parkerl
+- @sotojuan
+
+### Based on
+
+Exercise by the JumpstartLab team for students at The Turing School of Software and Design. - https://turing.edu

elixir/kindergarten-garden/lib/garden.ex

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+defmodule Garden do
+  @children ~w(alice bob charlie david eve fred ginny harriet ileana joseph kincaid larry)a
+  @plant_codes ~w(G C R V)
+  @plants %{
+    "G" => :grass,
+    "C" => :clover,
+    "R" => :radishes,
+    "V" => :violets
+  }
+
+  defguardp is_plant_code(char) when char in @plant_codes
+  defp plant(char) when is_plant_code(char), do: Map.get(@plants, char)
+
+  defp student_plants({name, position}, info_string) do
+    plants = info_string
+    |> String.split("\n")
+    |> Enum.map_join(&String.slice(&1, position * 2, 2))
+    |> String.graphemes()
+    |> Enum.map(&plant/1)
+    |> List.to_tuple()
+
+    {name, plants}
+  end
+
+  @doc """
+    Accepts a string representing the arrangement of cups on a windowsill and a
+    list with names of students in the class. The student names list does not
+    have to be in alphabetical order.
+
+    It decodes that string into the various gardens for each student and returns
+    that information in a map.
+  """
+
+  @spec info(String.t(), list) :: map
+  def info(info_string, student_names \\ @children) do
+    student_names
+    |> Enum.sort()
+    |> Enum.with_index()
+    |> Enum.map(&student_plants(&1, info_string))
+    |> Enum.into(%{})
+  end
+end

elixir/kindergarten-garden/mix.exs

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+defmodule Garden.MixProject do
+  use Mix.Project
+
+  def project do
+    [
+      app: :garden,
+      version: "0.1.0",
+      # elixir: "~> 1.8",
+      start_permanent: Mix.env() == :prod,
+      deps: deps()
+    ]
+  end
+
+  # Run "mix help compile.app" to learn about applications.
+  def application do
+    [
+      extra_applications: [:logger]
+    ]
+  end
+
+  # Run "mix help deps" to learn about dependencies.
+  defp deps do
+    [
+      # {:dep_from_hexpm, "~> 0.3.0"},
+      # {:dep_from_git, git: "https://github.com/elixir-lang/my_dep.git", tag: "0.1.0"}
+    ]
+  end
+end

elixir/kindergarten-garden/test/garden_test.exs

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+defmodule GardenTest do
+  use ExUnit.Case
+
+  test "gets the garden for Alice with just her plants" do
+    garden_info = Garden.info("RC\nGG")
+    assert garden_info.alice == {:radishes, :clover, :grass, :grass}
+  end
+
+  test "gets another garden for Alice with just her plants" do
+    garden_info = Garden.info("VC\nRC")
+    assert garden_info.alice == {:violets, :clover, :radishes, :clover}
+  end
+
+  test "returns an empty tuple if the child has no plants" do
+    garden_info = Garden.info("VC\nRC")
+    assert garden_info.bob == {}
+  end
+
+  test "gets the garden for Bob" do
+    garden_info = Garden.info("VVCG\nVVRC")
+    assert garden_info.bob == {:clover, :grass, :radishes, :clover}
+  end
+
+  test "plants are assigned in alphabetical order" do
+    garden_info = Garden.info("VVCC\nGGRR", [:bob, :alice])
+    assert garden_info.alice == {:violets, :violets, :grass, :grass}
+    assert garden_info.bob == {:clover, :clover, :radishes, :radishes}
+  end
+
+  test "a garden for 3 students" do
+    garden_info = Garden.info("VVCCGG\nVVCCGG")
+    assert garden_info.alice == {:violets, :violets, :violets, :violets}
+    assert garden_info.bob == {:clover, :clover, :clover, :clover}
+    assert garden_info.charlie == {:grass, :grass, :grass, :grass}
+  end
+
+  test "gets the garden for all students" do
+    garden_info = Garden.info("VRCGVVRVCGGCCGVRGCVCGCGV\nVRCCCGCRRGVCGCRVVCVGCGCV")
+    assert garden_info.alice == {:violets, :radishes, :violets, :radishes}
+    assert garden_info.bob == {:clover, :grass, :clover, :clover}
+    assert garden_info.charlie == {:violets, :violets, :clover, :grass}
+    assert garden_info.david == {:radishes, :violets, :clover, :radishes}
+    assert garden_info.eve == {:clover, :grass, :radishes, :grass}
+    assert garden_info.fred == {:grass, :clover, :violets, :clover}
+    assert garden_info.ginny == {:clover, :grass, :grass, :clover}
+    assert garden_info.harriet == {:violets, :radishes, :radishes, :violets}
+    assert garden_info.ileana == {:grass, :clover, :violets, :clover}
+    assert garden_info.joseph == {:violets, :clover, :violets, :grass}
+    assert garden_info.kincaid == {:grass, :clover, :clover, :grass}
+    assert garden_info.larry == {:grass, :violets, :clover, :violets}
+  end
+
+  test "accepts custom child names" do
+    garden_info = Garden.info("VC\nRC", [:nate, :maggie])
+    assert garden_info.maggie == {:violets, :clover, :radishes, :clover}
+    assert garden_info.nate == {}
+  end
+
+  test "gets the garden for all students with custom child names" do
+    names = [
+      :maggie,
+      :nate,
+      :xander,
+      :ophelia,
+      :pete,
+      :reggie,
+      :sylvia,
+      :tanner,
+      :ursula,
+      :victor,
+      :winnie,
+      :ynold
+    ]
+
+    garden_string = "VRCGVVRVCGGCCGVRGCVCGCGV\nVRCCCGCRRGVCGCRVVCVGCGCV"
+    garden_info = Garden.info(garden_string, names)
+    assert garden_info.maggie == {:violets, :radishes, :violets, :radishes}
+    assert garden_info.nate == {:clover, :grass, :clover, :clover}
+    assert garden_info.ophelia == {:violets, :violets, :clover, :grass}
+    assert garden_info.pete == {:radishes, :violets, :clover, :radishes}
+    assert garden_info.reggie == {:clover, :grass, :radishes, :grass}
+    assert garden_info.sylvia == {:grass, :clover, :violets, :clover}
+    assert garden_info.tanner == {:clover, :grass, :grass, :clover}
+    assert garden_info.ursula == {:violets, :radishes, :radishes, :violets}
+    assert garden_info.victor == {:grass, :clover, :violets, :clover}
+    assert garden_info.winnie == {:violets, :clover, :violets, :grass}
+    assert garden_info.xander == {:grass, :clover, :clover, :grass}
+    assert garden_info.ynold == {:grass, :violets, :clover, :violets}
+  end
+end

elixir/kindergarten-garden/test/test_helper.exs

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+ExUnit.start()
+ExUnit.configure(exclude: :pending, trace: true)