www-lib-markdown/jstest/spreadsheet/CellAddressRangeTests.js

class CellAddressRangeTests extends BaseTest {
	test_iterator() {
		const grid = new SpreadsheetGrid(3, 4);
		let range = new CellAddressRange(new CellAddress(0, 0), new CellAddress(2, 3));
		var visited = [];
		var sanity = 100;
		for (const address of range.cellsIn(grid)) {
			visited.push(address.name);
			if (sanity-- < 0) break;
		}
		const actual = visited.join(',');
		const expected = 'A1,A2,A3,A4,B1,B2,B3,B4,C1,C2,C3,C4';
		this.assertEqual(expected, actual);
	}

	test_iterator_column() {
		const grid = new SpreadsheetGrid(3, 4);
		let range = new CellAddressRange(new CellAddress(1, -1), new CellAddress(2, -1));
		var visited = [];
		var sanity = 100;
		for (const address of range.cellsIn(grid)) {
			visited.push(address.name);
			if (sanity-- < 0) break;
		}
		const actual = visited.join(',');
		const expected = 'B1,B2,B3,B4,C1,C2,C3,C4';
		this.assertEqual(expected, actual);
	}

	test_iterator_beyondBounds() {
		const grid = new SpreadsheetGrid(3, 4);
		let range = new CellAddressRange(new CellAddress(0, 1), new CellAddress(9, 9));
		var visited = [];
		var sanity = 100;
		for (const address of range.cellsIn(grid)) {
			visited.push(address.name);
			if (sanity-- < 0) break;
		}
		const actual = visited.join(',');
		const expected = 'A2,A3,A4,B2,B3,B4,C2,C3,C4';
		this.assertEqual(expected, actual);
	}

	test_iterator_outOfBounds() {
		const grid = new SpreadsheetGrid(3, 4);
		let range = new CellAddressRange(new CellAddress(5, 0), new CellAddress(5, 9));
		var visited = [];
		var sanity = 100;
		for (const address of range.cellsIn(grid)) {
			visited.push(address.name);
			if (sanity-- < 0) break;
		}
		const actual = visited.join(',');
		const expected = '';
		this.assertEqual(expected, actual);
	}
}