Auto-format collatz-conjecture .sql files

exercises/practice/collatz-conjecture/.meta/example.sql

@@ -2,20 +2,26 @@ ALTER TABLE collatz
 ADD current INTEGER;
 
 UPDATE collatz
-SET steps = 0;
+SET
+  steps = 0;
 
 PRAGMA recursive_triggers = ON;
 
-CREATE TRIGGER IF NOT EXISTS update_collatz
-	AFTER UPDATE
-    ON collatz
-    WHEN NEW.current != 1
-BEGIN
-	UPDATE collatz
-    SET current = IIF(NEW.current % 2 == 0, NEW.current / 2, NEW.current * 3 + 1),
-        steps = NEW.steps + 1
-    WHERE current = NEW.current;
+CREATE TRIGGER IF NOT EXISTS update_collatz AFTER
+UPDATE ON collatz WHEN NEW.current != 1 BEGIN
+UPDATE collatz
+SET
+  current = IIF(
+    NEW.current % 2 == 0,
+    NEW.current / 2,
+    NEW.current * 3 + 1
+  ),
+  steps = NEW.steps + 1
+WHERE
+  current = NEW.current;
+
 END;
 
 UPDATE collatz
-SET current = number;
+SET
+  current = number;

exercises/practice/collatz-conjecture/collatz-conjecture_test.sql

@@ -1,25 +1,49 @@
 -- Setup test table and read in student solution:
 .read ./test_setup.sql
-
 -- Test cases:
 -- Note: the strings below may contain literal tab, newline, carriage returns.
-
-INSERT INTO tests (name, uuid, number, expected)
-    VALUES
-        ('zero steps for one', '540a3d51-e7a6-47a5-92a3-4ad1838f0bfd',
-            1, 0),
-        ('divide if even', '3d76a0a6-ea84-444a-821a-f7857c2c1859',
-            16, 4),
-        ('even and odd steps', '754dea81-123c-429e-b8bc-db20b05a87b9',
-            12, 9),
-        ('large number of even and odd steps', 'ecfd0210-6f85-44f6-8280-f65534892ff6',
-            1000000, 152);
+INSERT INTO
+  tests (name, uuid, number, expected)
+VALUES
+  (
+    'zero steps for one',
+    '540a3d51-e7a6-47a5-92a3-4ad1838f0bfd',
+    1,
+    0
+  ),
+  (
+    'divide if even',
+    '3d76a0a6-ea84-444a-821a-f7857c2c1859',
+    16,
+    4
+  ),
+  (
+    'even and odd steps',
+    '754dea81-123c-429e-b8bc-db20b05a87b9',
+    12,
+    9
+  ),
+  (
+    'large number of even and odd steps',
+    'ecfd0210-6f85-44f6-8280-f65534892ff6',
+    1000000,
+    152
+  );
 
 -- Comparison of user input and the tests updates the status for each test:
 UPDATE tests
-SET status = 'pass'
-FROM (SELECT number, steps FROM collatz) AS actual
-WHERE (actual.number, actual.steps) = (tests.number, tests.expected);
+SET
+  status = 'pass'
+FROM
+  (
+    SELECT
+      number,
+      steps
+    FROM
+      collatz
+  ) AS actual
+WHERE
+  (actual.number, actual.steps) = (tests.number, tests.expected);
 
 -- Write results and debug info:
 .read ./test_reporter.sql

exercises/practice/collatz-conjecture/create_fixture.sql

@@ -1,10 +1,7 @@
 DROP TABLE IF EXISTS collatz;
-CREATE TABLE "collatz" (
-    "number" INTEGER,
-    "steps" INTEGER
-);
 
--- Note: the CSV file contain literal tab, newline, carriage returns.
+CREATE TABLE "collatz" ("number" INTEGER, "steps" INTEGER);
 
+-- Note: the CSV file contain literal tab, newline, carriage returns.
 .mode csv
 .import ./data.csv collatz

exercises/practice/collatz-conjecture/test_reporter.sql

@@ -1,20 +1,39 @@
 -- Update message for failed tests to give helpful information:
 UPDATE tests
-SET message = (
-    'Result for ' || tests.number
-    || ' is <' || COALESCE(actual.steps, 'NULL')
-    || '> but should be <' || tests.expected || '>'
-)
-FROM (SELECT number, steps FROM collatz) AS actual
-WHERE actual.number = tests.number AND tests.status = 'fail';
+SET
+  message = (
+    'Result for ' || tests.number || ' is <' || COALESCE(actual.steps, 'NULL') || '> but should be <' || tests.expected || '>'
+  )
+FROM
+  (
+    SELECT
+      number,
+      steps
+    FROM
+      collatz
+  ) AS actual
+WHERE
+  actual.number = tests.number
+  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;
+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;
+SELECT
+  name,
+  status,
+  message
+FROM
+  tests;

exercises/practice/collatz-conjecture/test_setup.sql

@@ -1,25 +1,24 @@
 -- 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 ./collatz-conjecture.sql
 .output
-
 -- Create a clean testing environment:
 DROP TABLE IF EXISTS tests;
+
 CREATE TABLE IF NOT EXISTS tests (
-    -- uuid and 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
-    number INT NOT NULL,
-    expected TEXT NOT NULL
+  -- uuid and 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
+  number INT NOT NULL,
+  expected TEXT NOT NULL
 );