Use node apis for test setup, refactor a bunch of runtime stuff

src/bun/mod.ts

@@ -3,10 +3,9 @@
  */
 
 import { IRuntime, RunTimeType } from '../common/runtime.ts';
-import TerminalIO from '../tsx/terminal_io.ts';
-import FileIO from '../tsx/file_io.ts';
-
-import process from 'node:process';
+import { process } from '../common/runtime/node.ts';
+import TerminalIO from '../common/runtime/terminal_io.ts';
+import FileIO from '../common/runtime/file_io.ts';
 
 /**
  * The Bun Runtime implementation

src/bun/test_base.ts

@@ -1,34 +1,19 @@
 /**
  * Adapt the bun test interface to the shared testing interface
  */
-import { deepStrictEqual, notStrictEqual, strictEqual } from 'node:assert';
 import { describe, test } from 'bun:test';
-import { ITestBase } from '../common/types.ts';
-
-export function testSuite(testObj: any) {
-	Object.keys(testObj).forEach((group) => {
-		describe(group, () => {
-			const groupObj = testObj[group];
-			Object.keys(groupObj).forEach((testName) => {
-				test(testName, groupObj[testName]);
+import AbstractTestBase from '../common/runtime/test_base.ts';
+class BunTestBase extends AbstractTestBase {
+	public static testSuite(testObj: any): void {
+		Object.keys(testObj).forEach((group) => {
+			describe(group, () => {
+				const groupObj = testObj[group];
+				Object.keys(groupObj).forEach((testName) => {
+					test(testName, groupObj[testName]);
+				});
 			});
 		});
-	});
+	}
 }
 
-const BunTestBase: ITestBase = {
-	assertEquivalent: (actual: unknown, expected: unknown) =>
-		deepStrictEqual(actual, expected),
-	assertExists: (actual: unknown) => notStrictEqual(actual, undefined),
-	assertFalse: (actual: boolean) => strictEqual(actual, false),
-	assertInstanceOf: (actual: unknown, expectedType: any) =>
-		strictEqual(actual instanceof expectedType, true),
-	assertNotEquals: (actual: unknown, expected: unknown) =>
-		notStrictEqual(actual, expected),
-	assertEquals: (actual: unknown, expected: unknown) =>
-		strictEqual(actual, expected),
-	assertTrue: (actual: boolean) => strictEqual(actual, true),
-	testSuite,
-};
-
 export default BunTestBase;

src/common/document.ts

@@ -1,7 +1,7 @@
 import Row from './row.ts';
 import { arrayInsert, maxAdd, minSub } from './fns.ts';
 import Option, { None, Some } from './option.ts';
-import { getRuntime, logDebug } from './runtime.ts';
+import { getRuntime, logDebug, logWarning } from './runtime.ts';
 import { Position, SearchDirection } from './types.ts';
 
 export class Document {
@@ -17,7 +17,7 @@ export class Document {
 		this.dirty = false;
 	}
 
-	get numRows(): number {
+	public get numRows(): number {
 		return this.#rows.length;
 	}
 
@@ -66,6 +66,10 @@ export class Document {
 		direction: SearchDirection = SearchDirection.Forward,
 	): Option<Position> {
 		if (at.y >= this.numRows) {
+			logWarning('Trying to search beyond the end of the current file', {
+				at,
+				document: this,
+			});
 			return None;
 		}
 

src/common/main.ts

@@ -1,6 +1,6 @@
-import process from 'node:process';
+import { process } from './runtime/node.ts';
 import { readKey } from './fns.ts';
-import { getRuntime, logError } from './runtime.ts';
+import { getRuntime, logError, logWarning } from './runtime.ts';
 import Editor from './editor.ts';
 
 export async function main() {
@@ -43,7 +43,9 @@ export async function main() {
 		for await (const char of term.inputLoop()) {
 			const parsed = readKey(char);
 			if (char.length === 0 || parsed.length === 0) {
-				continue;
+				logWarning('Empty input returned from runtime input loop');
+
+				return;
 			}
 
 			// Process input

src/common/runtime.ts

@@ -1,7 +1,7 @@
 /**
  * Functions/Methods that depend on the current runtime to function
  */
-import process from 'node:process';
+import { process } from './runtime/node.ts';
 import Ansi from './ansi.ts';
 import { IRuntime, ITerminalSize, ITestBase } from './types.ts';
 import { noop } from './fns.ts';

src/common/runtime/file_io.ts

@@ -1,9 +1,9 @@
 import { appendFile, readFile, writeFile } from 'node:fs/promises';
 import { resolve } from 'node:path';
 
-import { IFileIO } from '../common/runtime.ts';
+import { IFileIO } from '../runtime.ts';
 
-const TsxFileIO: IFileIO = {
+const CommonFileIO: IFileIO = {
 	openFile: async function (path: string): Promise<string> {
 		const filePath = resolve(path);
 		const contents = await readFile(filePath, { encoding: 'utf8' });
@@ -22,4 +22,4 @@ const TsxFileIO: IFileIO = {
 	},
 };
 
-export default TsxFileIO;
+export default CommonFileIO;

src/common/runtime/node.ts

@@ -0,0 +1,3 @@
+import * as process from 'node:process';
+
+export { process };

src/common/runtime/terminal_io.ts

@@ -1,12 +1,11 @@
-import process from 'node:process';
+import { process } from './node.ts';
+import { readKey } from '../fns.ts';
+import { ITerminal, ITerminalSize } from '../types.ts';
 
-import { readKey } from '../common/fns.ts';
-import { ITerminal, ITerminalSize } from '../common/types.ts';
-
-const TsxTerminalIO: ITerminal = {
+const CommonTerminalIO: ITerminal = {
 	argv: (process.argv.length > 2) ? process.argv.slice(2) : [],
 	inputLoop: async function* (): AsyncGenerator<Uint8Array, null> {
-		yield (await TsxTerminalIO.readStdinRaw()) ?? new Uint8Array(0);
+		yield (await CommonTerminalIO.readStdinRaw()) ?? new Uint8Array(0);
 
 		return null;
 	},
@@ -19,7 +18,7 @@ const TsxTerminalIO: ITerminal = {
 		});
 	},
 	readStdin: async function (): Promise<string | null> {
-		const raw = await TsxTerminalIO.readStdinRaw();
+		const raw = await CommonTerminalIO.readStdinRaw();
 		return readKey(raw ?? new Uint8Array(0));
 	},
 	readStdinRaw: function (): Promise<Uint8Array | null> {
@@ -38,4 +37,4 @@ const TsxTerminalIO: ITerminal = {
 	},
 };
 
-export default TsxTerminalIO;
+export default CommonTerminalIO;

src/common/runtime/test_base.ts

@@ -0,0 +1,88 @@
+/**
+ * Adapt the node test interface to the shared testing interface
+ */
+import { deepStrictEqual, notStrictEqual, strictEqual } from 'node:assert';
+import Option from '../option.ts';
+
+export interface ITestBase {
+	assertEquivalent(actual: unknown, expected: unknown): void;
+	assertExists(actual: unknown): void;
+	assertInstanceOf(actual: unknown, expectedType: any): void;
+	assertNotEquals(actual: unknown, expected: unknown): void;
+	assertEquals(actual: unknown, expected: unknown): void;
+	assertTrue(actual: boolean): void;
+	assertFalse(actual: boolean): void;
+	assertSome<T>(actual: Option<T>): void;
+	assertNone<T>(actual: Option<T>): void;
+	/**
+	 * Convert the nested test object into a test suite for the current runtime
+	 */
+	testSuite(testObj: any): void;
+}
+
+abstract class AbstractTestBase implements Partial<ITestBase> {
+	/**
+	 * The values (often objects) have all the same property values
+	 */
+	public static assertEquivalent(actual: unknown, expected: unknown): void {
+		return deepStrictEqual(actual, expected);
+	}
+
+	/**
+	 * The value is not null or undefined
+	 */
+	public static assertExists(actual: unknown): void {
+		return notStrictEqual(actual, undefined);
+	}
+
+	/**
+	 * `actual` is an object implementing `expectedType`
+	 */
+	public static assertInstanceOf(actual: unknown, expectedType: any): void {
+		return strictEqual(actual instanceof expectedType, true);
+	}
+
+	/**
+	 * The values are not exactly equal (Different instance, type, value, etc)
+	 */
+	public static assertNotEquals(actual: unknown, expected: unknown): void {
+		return notStrictEqual(actual, expected);
+	}
+
+	/**
+	 * The values are exactly the same
+	 */
+	public static assertEquals(actual: unknown, expected: unknown): void {
+		return strictEqual(actual, expected);
+	}
+
+	/**
+	 * The value is true
+	 */
+	public static assertTrue(actual: boolean): void {
+		return strictEqual(actual, true);
+	}
+
+	/**
+	 * The value is false
+	 */
+	public static assertFalse(actual: boolean): void {
+		return strictEqual(actual, false);
+	}
+
+	/**
+	 * The value is a `Some` type `Option`
+	 */
+	public static assertSome<T>(actual: Option<T>): void {
+		return AbstractTestBase.assertTrue(actual.isSome());
+	}
+
+	/**
+	 * The value is a `None` type `Option`
+	 */
+	public static assertNone<T>(actual: Option<T>): void {
+		return AbstractTestBase.assertTrue(actual.isNone());
+	}
+}
+
+export default AbstractTestBase;

src/common/types.ts

@@ -1,6 +1,7 @@
 import { RunTimeType } from './runtime.ts';
 
 export { Position } from './position.ts';
+export type { ITestBase } from './runtime/test_base.ts';
 
 /**
  * The size of terminal in rows and columns
@@ -128,66 +129,3 @@ export interface IRuntime {
 	 */
 	exit(code?: number): void;
 }
-
-// ----------------------------------------------------------------------------
-// Testing
-// ----------------------------------------------------------------------------
-
-/**
- * The shared test interface, so tests can be run by both runtimes
- */
-export interface ITestBase {
-	/**
-	 * The values (often objects) have all the same property values
-	 *
-	 * @param actual
-	 * @param expected
-	 */
-	assertEquivalent(actual: unknown, expected: unknown): void;
-
-	/**
-	 * The value is not null or undefined
-	 *
-	 * @param actual
-	 */
-	assertExists(actual: unknown): void;
-
-	/**
-	 * The value is false
-	 *
-	 * @param actual
-	 */
-	assertFalse(actual: boolean): void;
-
-	/**
-	 * `actual` is an object implementing `expectedType`
-	 *
-	 * @param actual
-	 * @param expectedType
-	 */
-	assertInstanceOf(actual: unknown, expectedType: any): void;
-
-	/**
-	 * The values are not exactly equal (Different instance, type, value, etc)
-	 *
-	 * @param actual
-	 * @param expected
-	 */
-	assertNotEquals(actual: unknown, expected: unknown): void;
-
-	/**
-	 * The values are exactly the same
-	 *
-	 * @param actual
-	 * @param expected
-	 */
-	assertEquals(actual: unknown, expected: unknown): void;
-
-	/**
-	 * The value is true
-	 *
-	 * @param actual
-	 */
-	assertTrue(actual: boolean): void;
-	testSuite(testObj: any): void;
-}

src/deno/test_base.ts

@@ -1,31 +1,15 @@
-import { ITestBase } from '../common/types.ts';
-import { stdAssert } from './deps.ts';
-const {
-	assertEquals,
-	assertExists,
-	assertInstanceOf,
-	assertNotEquals,
-	assertStrictEquals,
-} = stdAssert;
-
-export function testSuite(testObj: any) {
-	Object.keys(testObj).forEach((group) => {
-		const groupObj = testObj[group];
-		Object.keys(groupObj).forEach((testName) => {
-			Deno.test(testName, groupObj[testName]);
+// @ts-ignore The import exists, but tsc complains
+import { test } from 'node:test';
+import AbstractTestBase from '../common/runtime/test_base.ts';
+class DenoTestBase extends AbstractTestBase {
+	public static testSuite(testObj: any) {
+		Object.keys(testObj).forEach((group) => {
+			const groupObj = testObj[group];
+			Object.keys(groupObj).forEach((testName) => {
+				test(testName, groupObj[testName]);
+			});
 		});
-	});
+	}
 }
 
-const DenoTestBase: ITestBase = {
-	assertEquivalent: assertEquals,
-	assertExists,
-	assertInstanceOf,
-	assertNotEquals,
-	assertEquals: assertStrictEquals,
-	assertTrue: (actual: boolean) => assertStrictEquals(actual, true),
-	assertFalse: (actual: boolean) => assertStrictEquals(actual, false),
-	testSuite,
-};
-
 export default DenoTestBase;

src/tsx/mod.ts

@@ -2,17 +2,16 @@
  * The main entrypoint when using Tsx as the runtime
  */
 import { IRuntime, RunTimeType } from '../common/runtime.ts';
-import TsxTerminalIO from './terminal_io.ts';
-import TsxFileIO from './file_io.ts';
-
-import process from 'node:process';
+import { process } from '../common/runtime/node.ts';
+import TsxTerminalIO from '../common/runtime/terminal_io.ts';
+import FileIO from '../common/runtime/file_io.ts';
 
 /**
  * The Tsx Runtime implementation
  */
 const TsxRuntime: IRuntime = {
 	name: RunTimeType.Tsx,
-	file: TsxFileIO,
+	file: FileIO,
 	term: TsxTerminalIO,
 	onEvent: (eventName: string, handler) => process.on(eventName, handler),
 	onExit: (cb: () => void): void => {

src/tsx/test_base.ts

@@ -1,39 +1,21 @@
-// @ts-nocheck: Bun is used for typescript checks, bun does not have 'node:assert' or 'node:test'
 /**
  * Adapt the node test interface to the shared testing interface
  */
-import {
-	deepStrictEqual,
-	notStrictEqual,
-	strictEqual,
-} from 'node:assert/strict';
+// @ts-ignore The import exists, but tsc complains
 import { describe, it } from 'node:test';
-import { ITestBase } from '../common/types.ts';
+import AbstractTestBase from '../common/runtime/test_base.ts';
 
-export function testSuite(testObj: any) {
-	Object.keys(testObj).forEach((group) => {
-		describe(group, () => {
-			const groupObj = testObj[group];
-			Object.keys(groupObj).forEach((testName) => {
-				it(testName, groupObj[testName]);
+class TsxTestBase extends AbstractTestBase {
+	public static testSuite(testObj: any): void {
+		Object.keys(testObj).forEach((group) => {
+			describe(group, () => {
+				const groupObj = testObj[group];
+				Object.keys(groupObj).forEach((testName) => {
+					it(testName, groupObj[testName]);
+				});
 			});
 		});
-	});
+	}
 }
 
-const TsxTestBase: ITestBase = {
-	assertEquivalent: (actual: unknown, expected: unknown) =>
-		deepStrictEqual(actual, expected),
-	assertExists: (actual: unknown) => notStrictEqual(actual, undefined),
-	assertFalse: (actual: boolean) => strictEqual(actual, false),
-	assertInstanceOf: (actual: unknown, expectedType: any) =>
-		strictEqual(actual instanceof expectedType, true),
-	assertNotEquals: (actual: unknown, expected: unknown) =>
-		notStrictEqual(actual, expected),
-	assertEquals: (actual: unknown, expected: unknown) =>
-		strictEqual(actual, expected),
-	assertTrue: (actual: boolean) => strictEqual(actual, true),
-	testSuite,
-};
-
 export default TsxTestBase;

tsconfig.json

@@ -13,7 +13,8 @@
 		"skipLibCheck": true,
 		"composite": true,
 		"downlevelIteration": true,
-		"allowSyntheticDefaultImports": true
+		"esModuleInterop": false,
+		"allowSyntheticDefaultImports": false
 	},
 	"exclude": ["src/deno"]
 }