Added deleteLTR test suite

Author: Zaydek Michels-Gualtieri

src/RichTextEditor/utils/keyDownTypeFor/deleteLTR.test.js

@@ -0,0 +1,52 @@
+import deleteLTR from "./deleteLTR"
+import keyCodeFor from "lib/Client/keyCodeFor"
+
+import { // Unsorted
+	mockNonMacOS,
+	mockMacOS,
+} from "lib/Client/mockUserAgent"
+
+/*
+ * rune
+ */
+test("rune(...); non-macOS and macOS", () => {
+	expect(deleteLTR.rune({
+		shiftKey: false,
+		ctrlKey: false,
+		metaKey: false,
+		keyCode: keyCodeFor("Delete"),
+	})).toBeTruthy()
+})
+test("rune(...); macOS", () => {
+	mockMacOS()
+	expect(deleteLTR.rune({
+		shiftKey: false,
+		ctrlKey: true,
+		metaKey: false,
+		keyCode: keyCodeFor("D"),
+	})).toBeTruthy()
+})
+
+/*
+ * word
+ */
+test("word(...); non-macOS", () => {
+	mockNonMacOS()
+	expect(deleteLTR.word({
+		shiftKey: false,
+		ctrlKey: true,
+		altKey: false, // TODO
+		metaKey: false,
+		keyCode: keyCodeFor("Delete"),
+	})).toBeTruthy()
+})
+test("word(...); macOS", () => {
+	mockMacOS()
+	expect(deleteLTR.word({
+		shiftKey: false,
+		ctrlKey: true,
+		altKey: true, // TODO
+		metaKey: false,
+		keyCode: keyCodeFor("Delete"),
+	})).toBeTruthy()
+})