packages/happy-dom/src/nodes/html-table-section-element/HTMLTableSectionElement.ts

@@ -1,7 +1,88 @@
+import QuerySelector from '../../query-selector/QuerySelector.js';
+import * as PropertySymbol from '../../PropertySymbol.js';
 import HTMLElement from '../html-element/HTMLElement.js';
+import HTMLTableRowElement from '../html-table-row-element/HTMLTableRowElement.js';
+import DOMExceptionNameEnum from '../../exception/DOMExceptionNameEnum.js';
 /**
  * HTMLTableSectionElement
  *
  * @see https://developer.mozilla.org/en-US/docs/Web/API/HTMLTableSectionElement
  */
-export default class HTMLTableSectionElement extends HTMLElement {}
+export default class HTMLTableSectionElement extends HTMLElement {
+	/**
+	 * Returns an HTMLTableRowElement representing a new row of the table. It inserts it in the rows collection immediately before the <tr> element at the given index position. If the index is -1, the new row is appended to the collection. If the index is smaller than -1 or greater than the number of rows in the collection, a DOMException with the value IndexSizeError is raised.
+	 *
+	 * @param [index] Index.
+	 * @returns Row.
+	 */
+	public insertRow(index: number = -1): HTMLTableRowElement {
+		if (typeof index !== 'number') {
+			index = -1;
+		}
+
+		const rows = QuerySelector.querySelectorAll(this, 'tr')[PropertySymbol.items];
+
+		if (index < -1) {
+			throw new this[PropertySymbol.window].DOMException(
+				`Failed to execute 'insertRow' on 'HTMLTableSectionElement': The index provided (${index}) is less than -1.`,
+				DOMExceptionNameEnum.indexSizeError
+			);
+		}
+
+		if (index > rows.length) {
+			throw new this[PropertySymbol.window].DOMException(
+				`Failed to execute 'insertRow' on 'HTMLTableSectionElement': The index provided (${index}) is greater than the number of rows (${rows.length}).`,
+				DOMExceptionNameEnum.indexSizeError
+			);
+		}
+
+		const row = this[PropertySymbol.ownerDocument].createElement('tr');
+
+		if (index === -1 || index === rows.length) {
+			this.appendChild(row);
+		} else {
+			this.insertBefore(row, rows[index]);
+		}
+
+		return row;
+	}
+
+	/**
+	 * Removes the row corresponding to the index given in parameter. If the index value is -1 the last row is removed; if it is smaller than -1 or greater than the amount of rows in the collection, a DOMException with the value IndexSizeError is raised.
+	 *
+	 * @param index Index.
+	 */
+	public deleteRow(index: number): void {
+		if (arguments.length === 0) {
+			throw new this[PropertySymbol.window].TypeError(
+				"Failed to execute 'deleteRow' on 'HTMLTableSectionElement': 1 argument required, but only 0 present."
+			);
+		}
+
+		if (typeof index !== 'number') {
+			index = -1;
+		}
+
+		if (index < -1) {
+			throw new this[PropertySymbol.window].DOMException(
+				`Failed to execute 'deleteRow' on 'HTMLTableSectionElement': The index provided (${index}) is less than -1.`,
+				DOMExceptionNameEnum.indexSizeError
+			);
+		}
+
+		const rows = QuerySelector.querySelectorAll(this, 'tr')[PropertySymbol.items];
+
+		if (index >= rows.length) {
+			throw new this[PropertySymbol.window].DOMException(
+				`Failed to execute 'deleteRow' on 'HTMLTableSectionElement': The index provided (${index}) is greater than the number of rows in the table (${rows.length}).`,
+				DOMExceptionNameEnum.indexSizeError
+			);
+		}
+
+		if (index === -1) {
+			index = rows.length - 1;
+		}
+
+		rows[index].remove();
+	}
+}

packages/happy-dom/test/nodes/html-table-element/HTMLTableElement.test.ts

@@ -450,6 +450,15 @@ describe('HTMLTableElement', () => {
 			);
 		});
 
+		it('Throws an error if there are no arguments', () => {
+			expect(() => {
+				// @ts-expect-error -- We are intentionally calling this in an unsupported way (no arguments) for this test
+				element.deleteRow();
+			}).toThrow(
+				"Failed to execute 'deleteRow' on 'HTMLTableElement': 1 argument required, but only 0 present."
+			);
+		});
+
 		it('Throws an error if the index is less than -1', () => {
 			expect(() => {
 				element.deleteRow(-2);

packages/happy-dom/test/nodes/html-table-section-element/HTMLTableSectionElement.test.ts

@@ -19,4 +19,109 @@ describe('HTMLTableSectionElement', () => {
 			expect(element instanceof HTMLTableSectionElement).toBe(true);
 		});
 	});
+
+	describe('insertRow()', () => {
+		it('Inserts a new row at the end', () => {
+			const row = element.insertRow();
+			expect(element.children[0]).toBe(row);
+			expect(element.innerHTML).toBe('<tr></tr>');
+			const row2 = element.insertRow();
+			expect(element.children[1]).toBe(row2);
+			expect(element.innerHTML).toBe('<tr></tr><tr></tr>');
+		});
+
+		it('Inserts a new row at the given index', () => {
+			element.innerHTML = '<tr><td>test</td></tr><tr><td>test</td></tr>';
+			const row = element.insertRow(1);
+			expect(element.children[1]).toBe(row);
+			expect(element.innerHTML).toBe('<tr><td>test</td></tr><tr></tr><tr><td>test</td></tr>');
+		});
+
+		it('Inserts a new row at the end if the index is -1', () => {
+			element.innerHTML = '<tr><td>test</td></tr><tr><td>test</td></tr>';
+			const row = element.insertRow(-1);
+			expect(element.children[2]).toBe(row);
+			expect(element.innerHTML).toBe('<tr><td>test</td></tr><tr><td>test</td></tr><tr></tr>');
+		});
+
+		it('Inserts a new row at the end if the index is not a number', () => {
+			element.innerHTML = '<tr><td>test</td></tr><tr><td>test</td></tr>';
+			const row = element.insertRow(<number>(<unknown>'test'));
+			expect(element.children[2]).toBe(row);
+			expect(element.innerHTML).toBe('<tr><td>test</td></tr><tr><td>test</td></tr><tr></tr>');
+		});
+
+		it('Inserts a new row at the end if the index is equal to the length of rows', () => {
+			element.innerHTML = '<tr><td>test</td></tr><tr><td>test</td></tr>';
+			const row = element.insertRow(2);
+			expect(element.children[2]).toBe(row);
+			expect(element.innerHTML).toBe('<tr><td>test</td></tr><tr><td>test</td></tr><tr></tr>');
+		});
+
+		it('Throws an error if the index is less than -1', () => {
+			expect(() => {
+				element.insertRow(-2);
+			}).toThrow(
+				"Failed to execute 'insertRow' on 'HTMLTableSectionElement': The index provided (-2) is less than -1."
+			);
+		});
+
+		it('Throws an error if the index is greater than the number of rows', () => {
+			element.innerHTML = '<tr><td>test</td></tr><tr><td>test</td></tr>';
+			expect(() => {
+				element.insertRow(3);
+			}).toThrow(
+				"Failed to execute 'insertRow' on 'HTMLTableSectionElement': The index provided (3) is greater than the number of rows (2)."
+			);
+		});
+	});
+
+	describe('deleteRow()', () => {
+		it('Removes the row at the given index', () => {
+			element.innerHTML = '<tr><td>Row 1</td></tr><tr><td>Row 2</td></tr><tr><td>Row 3</td></tr>';
+			element.deleteRow(1);
+			expect(element.children.length).toBe(2);
+			expect(element.innerHTML).toBe('<tr><td>Row 1</td></tr><tr><td>Row 3</td></tr>');
+		});
+
+		it('Removes the last row if the index is -1', () => {
+			element.innerHTML = '<tr><td>Row 1</td></tr><tr><td>Row 2</td></tr><tr><td>Row 3</td></tr>';
+			element.deleteRow(-1);
+			expect(element.children.length).toBe(2);
+			expect(element.innerHTML).toBe('<tr><td>Row 1</td></tr><tr><td>Row 2</td></tr>');
+		});
+
+		it('Removes the last row if the index is not a number', () => {
+			element.innerHTML = '<tr><td>Row 1</td></tr><tr><td>Row 2</td></tr><tr><td>Row 3</td></tr>';
+			element.deleteRow(<number>(<unknown>'test'));
+			expect(element.children.length).toBe(2);
+			expect(element.innerHTML).toBe('<tr><td>Row 1</td></tr><tr><td>Row 2</td></tr>');
+		});
+
+		it('Throws an error if there are no arguments', () => {
+			expect(() => {
+				// @ts-expect-error -- We are intentionally calling this in an unsupported way (no arguments) for this test
+				element.deleteRow();
+			}).toThrow(
+				"Failed to execute 'deleteRow' on 'HTMLTableSectionElement': 1 argument required, but only 0 present."
+			);
+		});
+
+		it('Throws an error if the index is less than -1', () => {
+			expect(() => {
+				element.deleteRow(-2);
+			}).toThrow(
+				"Failed to execute 'deleteRow' on 'HTMLTableSectionElement': The index provided (-2) is less than -1."
+			);
+		});
+
+		it('Throws an error if the index is greater than the number of rows', () => {
+			element.innerHTML = '<tr><td>test</td></tr><tr><td>test</td></tr>';
+			expect(() => {
+				element.deleteRow(2);
+			}).toThrow(
+				"Failed to execute 'deleteRow' on 'HTMLTableSectionElement': The index provided (2) is greater than the number of rows in the table (2)."
+			);
+		});
+	});
 });