Add RNA Transcription exercise

config.json

@@ -217,6 +217,14 @@
         "practices": [],
         "prerequisites": [],
         "difficulty": 8
+      },
+      {
+        "slug": "rna-transcription",
+        "name": "RNA Transcription",
+        "uuid": "71556996-0d47-4c34-bd8c-373d55ee03fd",
+        "practices": [],
+        "prerequisites": [],
+        "difficulty": 2
       }
     ]
   },

exercises/practice/rna-transcription/.docs/instructions.md

@@ -0,0 +1,20 @@
+# Instructions
+
+Your task is determine the RNA complement of a given DNA sequence.
+
+Both DNA and RNA strands are a sequence of nucleotides.
+
+The four nucleotides found in DNA are adenine (**A**), cytosine (**C**), guanine (**G**) and thymine (**T**).
+
+The four nucleotides found in RNA are adenine (**A**), cytosine (**C**), guanine (**G**) and uracil (**U**).
+
+Given a DNA strand, its transcribed RNA strand is formed by replacing each nucleotide with its complement:
+
+- `G` -> `C`
+- `C` -> `G`
+- `T` -> `A`
+- `A` -> `U`
+
+~~~~exercism/note
+If you want to look at how the inputs and outputs are structured, take a look at the examples in the test suite.
+~~~~

exercises/practice/rna-transcription/.docs/introduction.md

@@ -0,0 +1,16 @@
+# Introduction
+
+You work for a bioengineering company that specializes in developing therapeutic solutions.
+
+Your team has just been given a new project to develop a targeted therapy for a rare type of cancer.
+
+~~~~exercism/note
+It's all very complicated, but the basic idea is that sometimes people's bodies produce too much of a given protein.
+That can cause all sorts of havoc.
+
+But if you can create a very specific molecule (called a micro-RNA), it can prevent the protein from being produced.
+
+This technique is called [RNA Interference][rnai].
+
+[rnai]: https://admin.acceleratingscience.com/ask-a-scientist/what-is-rnai/
+~~~~

exercises/practice/rna-transcription/.meta/config.json

@@ -0,0 +1,22 @@
+{
+  "authors": [
+    "Steffan153"
+  ],
+  "files": {
+    "solution": [
+      "rna-transcription.sql"
+    ],
+    "test": [
+      "rna-transcription_test.sql"
+    ],
+    "example": [
+      ".meta/example.sql"
+    ],
+    "editor": [
+      "data.csv"
+    ]
+  },
+  "blurb": "Given a DNA strand, return its RNA Complement Transcription.",
+  "source": "Hyperphysics",
+  "source_url": "https://web.archive.org/web/20220408112140/http://hyperphysics.phy-astr.gsu.edu/hbase/Organic/transcription.html"
+}

exercises/practice/rna-transcription/.meta/example.sql

@@ -0,0 +1,14 @@
+UPDATE "rna-transcription"
+SET result = REPLACE(
+  REPLACE(
+    REPLACE(
+      REPLACE(
+        REPLACE(dna, 'A', 'U'),
+        'T', 'A'
+      ),
+      'C', 'Z'
+    ),
+    'G', 'C'
+  ),
+  'Z', 'G'
+);

exercises/practice/rna-transcription/.meta/tests.toml

@@ -0,0 +1,28 @@
+# This is an auto-generated file.
+#
+# Regenerating this file via `configlet sync` will:
+# - Recreate every `description` key/value pair
+# - Recreate every `reimplements` key/value pair, where they exist in problem-specifications
+# - Remove any `include = true` key/value pair (an omitted `include` key implies inclusion)
+# - Preserve any other key/value pair
+#
+# As user-added comments (using the # character) will be removed when this file
+# is regenerated, comments can be added via a `comment` key.
+
+[b4631f82-c98c-4a2f-90b3-c5c2b6c6f661]
+description = "Empty RNA sequence"
+
+[a9558a3c-318c-4240-9256-5d5ed47005a6]
+description = "RNA complement of cytosine is guanine"
+
+[6eedbb5c-12cb-4c8b-9f51-f8320b4dc2e7]
+description = "RNA complement of guanine is cytosine"
+
+[870bd3ec-8487-471d-8d9a-a25046488d3e]
+description = "RNA complement of thymine is adenine"
+
+[aade8964-02e1-4073-872f-42d3ffd74c5f]
+description = "RNA complement of adenine is uracil"
+
+[79ed2757-f018-4f47-a1d7-34a559392dbf]
+description = "RNA complement"

exercises/practice/rna-transcription/canonical-data.json

@@ -0,0 +1,59 @@
+{
+  "exercise": "rna-transcription",
+  "cases": [
+    {
+      "uuid": "b4631f82-c98c-4a2f-90b3-c5c2b6c6f661",
+      "description": "Empty RNA sequence",
+      "property": "toRna",
+      "input": {
+        "dna": ""
+      },
+      "expected": ""
+    },
+    {
+      "uuid": "a9558a3c-318c-4240-9256-5d5ed47005a6",
+      "description": "RNA complement of cytosine is guanine",
+      "property": "toRna",
+      "input": {
+        "dna": "C"
+      },
+      "expected": "G"
+    },
+    {
+      "uuid": "6eedbb5c-12cb-4c8b-9f51-f8320b4dc2e7",
+      "description": "RNA complement of guanine is cytosine",
+      "property": "toRna",
+      "input": {
+        "dna": "G"
+      },
+      "expected": "C"
+    },
+    {
+      "uuid": "870bd3ec-8487-471d-8d9a-a25046488d3e",
+      "description": "RNA complement of thymine is adenine",
+      "property": "toRna",
+      "input": {
+        "dna": "T"
+      },
+      "expected": "A"
+    },
+    {
+      "uuid": "aade8964-02e1-4073-872f-42d3ffd74c5f",
+      "description": "RNA complement of adenine is uracil",
+      "property": "toRna",
+      "input": {
+        "dna": "A"
+      },
+      "expected": "U"
+    },
+    {
+      "uuid": "79ed2757-f018-4f47-a1d7-34a559392dbf",
+      "description": "RNA complement",
+      "property": "toRna",
+      "input": {
+        "dna": "ACGTGGTCTTAA"
+      },
+      "expected": "UGCACCAGAAUU"
+    }
+  ]
+}

exercises/practice/rna-transcription/create_fixture.sql

@@ -0,0 +1,8 @@
+DROP TABLE IF EXISTS "rna-transcription";
+CREATE TABLE "rna-transcription" (
+    "dna" TEXT,
+    "result" TEXT
+);
+
+.mode csv
+.import ./data.csv rna-transcription

exercises/practice/rna-transcription/data.csv

@@ -0,0 +1,6 @@
+"",""
+"C",""
+"G",""
+"T",""
+"A",""
+"ACGTGGTCTTAA",""

exercises/practice/rna-transcription/rna-transcription.sql

@@ -0,0 +1,2 @@
+-- Schema: CREATE TABLE "rna-transcription" ("dna" TEXT, "result" TEXT);
+-- Task: update the rna-transcription table and set the result based on the dna field.

exercises/practice/rna-transcription/rna-transcription_test.sql

@@ -0,0 +1,21 @@
+-- Setup test table and read in student solution:
+.read ./test_setup.sql
+
+-- Test cases:
+INSERT INTO tests (name, uuid, dna, expected)
+    VALUES
+        ('Empty RNA sequence', 'b4631f82-c98c-4a2f-90b3-c5c2b6c6f661', '', ''),
+        ('RNA complement of cytosine is guanine', 'a9558a3c-318c-4240-9256-5d5ed47005a6', 'C', 'G'),
+        ('RNA complement of guanine is cytosine', '6eedbb5c-12cb-4c8b-9f51-f8320b4dc2e7', 'G', 'C'),
+        ('RNA complement of thymine is adenine', '870bd3ec-8487-471d-8d9a-a25046488d3e', 'T', 'A'),
+        ('RNA complement of adenine is uracil', 'aade8964-02e1-4073-872f-42d3ffd74c5f', 'A', 'U'),
+        ('RNA complement', '79ed2757-f018-4f47-a1d7-34a559392dbf', 'ACGTGGTCTTAA', 'UGCACCAGAAUU');
+
+-- Comparison of user input and the tests updates the status for each test:
+UPDATE tests
+SET status = 'pass'
+FROM (SELECT dna, result FROM "rna-transcription") AS actual
+WHERE (actual.dna, actual.result) = (tests.dna, tests.expected);
+
+-- Write results and debug info:
+.read ./test_reporter.sql

exercises/practice/rna-transcription/test_reporter.sql

@@ -0,0 +1,16 @@
+-- Update message for failed tests to give helpful information:
+UPDATE tests
+SET message = 'Result for "' || tests.dna || '" is "' || actual.result || '", but should be "' || tests.expected || '"'
+FROM (SELECT dna, result FROM 'rna-transcription') AS actual
+WHERE actual.dna = tests.dna AND tests.status = 'fail';
+
+-- Save results to ./output.json (needed by the online test-runner)
+.mode json
+.once './output.json'
+SELECT name, status, message, output, test_code, task_id
+FROM tests;
+
+-- Display test results in readable form for the student:
+.mode table
+SELECT name, status, message
+FROM tests;

exercises/practice/rna-transcription/test_setup.sql

@@ -0,0 +1,25 @@
+-- Create database:
+.read ./create_fixture.sql
+
+-- Read user student solution and save any output as markdown in user_output.md:
+.mode markdown
+.output user_output.md
+.read ./rna-transcription.sql
+.output
+
+-- Create a clean testing environment:
+DROP TABLE IF EXISTS tests;
+CREATE TABLE IF NOT EXISTS tests (
+    -- uuid and name (description) are taken from the test.toml file
+    uuid TEXT PRIMARY KEY,
+    name TEXT NOT NULL,
+    -- The following section is needed by the online test-runner
+    status TEXT DEFAULT 'fail',
+    message TEXT,
+    output TEXT,
+    test_code TEXT,
+    task_id INTEGER DEFAULT NULL,
+    -- Here are columns for the actual tests
+    dna TEXT NOT NULL,
+    expected TEXT NOT NULL
+);