test(utils): test utils formatLines (#1059)

test/utils/formatLines.spec.ts

@@ -0,0 +1,54 @@
+import { describe, expect, it } from 'vitest';
+import { formatLines } from '../../src/utils';
+
+describe('utils', () => {
+  describe('formatLines', () => {
+    it('should use a default replace of 2 whitespace', () => {
+      const actual = formatLines([]);
+
+      expect(actual).toBeTypeOf('string');
+      expect(actual).toBe('  ');
+    });
+
+    it('should join with comma and a default indent of 2 whitespace', () => {
+      const actual = formatLines([
+        'CLUSTER ON "a_cluster"',
+        'DEPENDS ON EXTENSION "a_extension"',
+        'SET (fillfactor = 70, fillfactor2 = 50)',
+        'RESET (reset1, reset2)',
+      ]);
+
+      expect(actual).toBeTypeOf('string');
+      expect(actual).toBe(`  CLUSTER ON "a_cluster",
+  DEPENDS ON EXTENSION "a_extension",
+  SET (fillfactor = 70, fillfactor2 = 50),
+  RESET (reset1, reset2)`);
+    });
+
+    it('should join with comma and a custom replacement', () => {
+      const actual = formatLines(
+        [
+          'CONSTRAINT "zipchk" CHECK (char_length(zipcode) = 5) DEFERRABLE INITIALLY IMMEDIATE',
+          'CONSTRAINT "zipchk" CHECK (zipcode <> 0) DEFERRABLE INITIALLY IMMEDIATE',
+          'CONSTRAINT "zipchk" EXCLUDE zipcode WITH = DEFERRABLE INITIALLY IMMEDIATE',
+        ],
+        '  ADD '
+      );
+
+      expect(actual).toBeTypeOf('string');
+      expect(actual)
+        .toBe(`  ADD CONSTRAINT "zipchk" CHECK (char_length(zipcode) = 5) DEFERRABLE INITIALLY IMMEDIATE,
+  ADD CONSTRAINT "zipchk" CHECK (zipcode <> 0) DEFERRABLE INITIALLY IMMEDIATE,
+  ADD CONSTRAINT "zipchk" EXCLUDE zipcode WITH = DEFERRABLE INITIALLY IMMEDIATE`);
+    });
+
+    it('should replace newlines with a whitespace', () => {
+      const actual = formatLines(['a\r\nb', 'c\rd', 'e\nf']);
+
+      expect(actual).toBeTypeOf('string');
+      expect(actual).toBe(`  a b,
+  c d,
+  e f`);
+    });
+  });
+});