Split out code (#2)

* Drafted mock of Obsidian editor.

* Implemented mock of MarkdownView and Editor, and got several example tests working.

* Fixed bug whereby blank lines were not being correctly identified, vs. lines with no leading indentation among indented lines.

* Improved cursor/selection location after toggleBlockquote, and continued adding tests.

* Got tests running again.

* Added <blockquote>-wrapped quote command.

* Removed extra console.log() call.

__mocks__/obsidian.ts

@@ -0,0 +1,104 @@
+// Mock several classes from Obsidian, following
+// https://github.com/obsidianmd/obsidian-api/blob/master/obsidian.d.ts:
+
+class Notice {
+  msg: string
+
+  constructor(
+    msg: string
+  ) {
+    this.msg = msg;
+  }
+}
+
+class Editor {
+  content: string[]
+  selectionStart: {line: number, ch: number}
+  selectionEnd: {line: number, ch: number}
+  selection: {line: number, ch: number}[]
+
+  constructor(
+    content: string[],
+    selectionStart: {line: number, ch: number},
+    selectionEnd: {line: number, ch: number},
+  ) {
+    this.content = content;
+    this.selection = [selectionStart, selectionEnd];
+  }
+
+  getCursor() {
+    return this.selection[0];
+  }
+
+  getLine(line: number) {
+    return this.content[line];
+  }
+
+  getRange(
+    start: {line: number, ch: number},
+    end: {line: number, ch: number}
+  ) {
+    const contentInRange = this.content.slice(start.line, end.line + 1);
+    contentInRange[0] = contentInRange[0].slice(start.ch);
+    contentInRange[contentInRange.length - 1] = contentInRange[contentInRange.length - 1].slice(0, end.ch);
+
+    return contentInRange.join('\n');
+  }
+
+  setSelection(
+    start: {line: number, ch: number},
+    end: {line: number, ch: number}
+  ) {
+    this.selection = [start, end]
+  }
+
+  replaceSelection(text: string) {
+    this.content.splice(
+      this.selection[0].line,
+      this.selection[1].line - this.selection[0].line,
+      ...(
+        this.content[this.selection[0].line].slice(0, this.selection[0].ch) + 
+        text +
+        this.content[this.selection[1].line].slice(this.selection[1].ch)
+      ).split('\n')
+    )
+  }
+
+  replaceRange(
+    text: string,
+    start: {line: number, ch: number},
+    end: {line: number, ch: number}
+  ) {
+    this.content.splice(
+      start.line,
+      end.line - start.line + 1,
+      ...(
+        this.content[start.line].slice(0, start.ch) + 
+        text +
+        this.content[end.line].slice(end.ch)
+      ).split('\n')
+    )
+  }
+}
+
+export class MarkdownView {
+  content: string[]
+  selectionStart: {line: number, ch: number}
+  selectionEnd: {line: number, ch: number}
+  editor: Editor
+
+  constructor(
+    content: string[],
+    selectionStart: {line: number, ch: number},
+    selectionEnd: {line: number, ch: number},
+  ) {
+    this.editor = new Editor(
+      content,
+      selectionStart,
+      selectionEnd
+    );
+  }
+}
+
+export {};
+

__tests__/mocks.tests.ts

@@ -0,0 +1,19 @@
+import { MarkdownView } from '../__mocks__/obsidian';
+
+describe('Examining mocks', () => {
+  const view = new MarkdownView(
+    [
+      'Lorem ipsum dolor sit amet, consectetur adipiscing elit.',
+      'Sed venenatis lectus et leo viverra, ac viverra purus rutrum.',
+      '',
+      'Etiam semper massa ut est faucibus, eu luctus arcu porttitor.'
+    ],
+    {line: 0, ch: 0},
+    {line: 0, ch: 0}
+  );
+
+  test('correctly creates a mock view', () => {
+    // console.log(`"${JSON.stringify(view)}`);
+    expect(JSON.stringify(view)).toEqual('{"editor":{"content":["Lorem ipsum dolor sit amet, consectetur adipiscing elit.","Sed venenatis lectus et leo viverra, ac viverra purus rutrum.","","Etiam semper massa ut est faucibus, eu luctus arcu porttitor."],"selection":[{"line":0,"ch":0},{"line":0,"ch":0}]}}');
+  });
+});

__tests__/paste-text.tests.ts

@@ -0,0 +1,23 @@
+import { MarkdownView } from '../__mocks__/obsidian';
+
+import { pasteText } from '../src/paste-text';
+
+// describe('Examining toggle-blockquote-at-current-indentation', () => {
+//     beforeAll(() => {
+//       const view = new MarkdownView(
+//         [
+//           'Lorem ipsum dolor sit amet, consectetur adipiscing elit.',
+//           'Sed venenatis lectus et leo viverra, ac viverra purus rutrum.',
+//           '',
+//           'Etiam semper massa ut est faucibus, eu luctus arcu porttitor.'
+//         ],
+//         {line: 0, ch: 0},
+//         {line: 0, ch: 0},
+//         {line: 0, ch: 0}
+//       );
+//     });
+
+//     test('Adds blockquote to single line', () => {
+//       return
+//     })
+// });

__tests__/toggle-quote.tests.ts

@@ -0,0 +1,163 @@
+import * as obsidian from "obsidian";
+
+// Following https://stackoverflow.com/a/52366601,
+// get Jest to understand that our mock of
+// MarkdownView is quite different in its type
+// definition from the actual obsidian MarkdownView
+// (in that ours just implements some of the real
+// class' methods):
+const MarkdownView = <jest.Mock>obsidian.MarkdownView;
+
+import { toggleQuote } from "../src/toggle-quote";
+
+const defaultViewSettings = {
+  content: [
+    "Lorem ipsum dolor sit amet, consectetur adipiscing elit.",
+    "Sed venenatis lectus et leo viverra, ac viverra purus rutrum.",
+    "",
+    "Etiam semper massa ut est faucibus, eu luctus arcu porttitor.",
+  ],
+  selectionStart: { line: 0, ch: 0 },
+  selectionEnd: { line: 0, ch: 0 },
+};
+
+const defaultPrefix = "> ";
+
+describe("Examining toggle-blockquote-at-current-indentation", () => {
+  // beforeAll(() => {
+  // });
+
+  test("Adds and removes blockquote from single line with cursor at beginning of line", async () => {
+    const view = new MarkdownView(...Object.values(defaultViewSettings));
+
+    expect(JSON.stringify(view)).toEqual(
+      '{"editor":{"content":["Lorem ipsum dolor sit amet, consectetur adipiscing elit.","Sed venenatis lectus et leo viverra, ac viverra purus rutrum.","","Etiam semper massa ut est faucibus, eu luctus arcu porttitor."],"selection":[{"line":0,"ch":0},{"line":0,"ch":0}]}}'
+    );
+
+    await toggleQuote(view, defaultPrefix);
+    expect(JSON.stringify(view)).toEqual(
+      '{"editor":{"content":["> Lorem ipsum dolor sit amet, consectetur adipiscing elit.","Sed venenatis lectus et leo viverra, ac viverra purus rutrum.","","Etiam semper massa ut est faucibus, eu luctus arcu porttitor."],"selection":[{"line":0,"ch":2},{"line":0,"ch":2}]}}'
+    );
+
+    await toggleQuote(view, defaultPrefix);
+    expect(JSON.stringify(view)).toEqual(
+      '{"editor":{"content":["Lorem ipsum dolor sit amet, consectetur adipiscing elit.","Sed venenatis lectus et leo viverra, ac viverra purus rutrum.","","Etiam semper massa ut est faucibus, eu luctus arcu porttitor."],"selection":[{"line":0,"ch":0},{"line":0,"ch":0}]}}'
+    );
+  });
+
+  test("Adds and removes blockquote from single line with cursor at middle of line", async () => {
+    const view = new MarkdownView(
+      defaultViewSettings.content,
+      { line: 0, ch: 5 },
+      { line: 0, ch: 5 }
+    );
+
+    expect(JSON.stringify(view)).toEqual(
+      '{"editor":{"content":["Lorem ipsum dolor sit amet, consectetur adipiscing elit.","Sed venenatis lectus et leo viverra, ac viverra purus rutrum.","","Etiam semper massa ut est faucibus, eu luctus arcu porttitor."],"selection":[{"line":0,"ch":5},{"line":0,"ch":5}]}}'
+    );
+
+    await toggleQuote(view, defaultPrefix);
+    expect(JSON.stringify(view)).toEqual(
+      '{"editor":{"content":["> Lorem ipsum dolor sit amet, consectetur adipiscing elit.","Sed venenatis lectus et leo viverra, ac viverra purus rutrum.","","Etiam semper massa ut est faucibus, eu luctus arcu porttitor."],"selection":[{"line":0,"ch":7},{"line":0,"ch":7}]}}'
+    );
+
+    await toggleQuote(view, defaultPrefix);
+    expect(JSON.stringify(view)).toEqual(
+      '{"editor":{"content":["Lorem ipsum dolor sit amet, consectetur adipiscing elit.","Sed venenatis lectus et leo viverra, ac viverra purus rutrum.","","Etiam semper massa ut est faucibus, eu luctus arcu porttitor."],"selection":[{"line":0,"ch":5},{"line":0,"ch":5}]}}'
+    );
+  });
+
+  test("Adds and removes blockquote from single line that begins with whitespace with cursor at beginning of line", async () => {
+    const view = new MarkdownView(
+      [
+        '    ' + defaultViewSettings.content[0],
+        ...defaultViewSettings.content.slice(1)
+      ],
+      { line: 0, ch: 10 },
+      { line: 0, ch: 10 }
+    );
+
+    expect(JSON.stringify(view)).toEqual(
+      '{"editor":{"content":["    Lorem ipsum dolor sit amet, consectetur adipiscing elit.","Sed venenatis lectus et leo viverra, ac viverra purus rutrum.","","Etiam semper massa ut est faucibus, eu luctus arcu porttitor."],"selection":[{"line":0,"ch":10},{"line":0,"ch":10}]}}'
+    );
+
+    await toggleQuote(view, defaultPrefix);
+    expect(JSON.stringify(view)).toEqual(
+      '{"editor":{"content":["    > Lorem ipsum dolor sit amet, consectetur adipiscing elit.","Sed venenatis lectus et leo viverra, ac viverra purus rutrum.","","Etiam semper massa ut est faucibus, eu luctus arcu porttitor."],"selection":[{"line":0,"ch":12},{"line":0,"ch":12}]}}'
+    );
+
+    await toggleQuote(view, defaultPrefix);
+    expect(JSON.stringify(view)).toEqual(
+      '{"editor":{"content":["    Lorem ipsum dolor sit amet, consectetur adipiscing elit.","Sed venenatis lectus et leo viverra, ac viverra purus rutrum.","","Etiam semper massa ut est faucibus, eu luctus arcu porttitor."],"selection":[{"line":0,"ch":10},{"line":0,"ch":10}]}}'
+    );
+  });
+
+  test("Adds and removes blockquote from single line with single-line selection", async () => {
+    const view = new MarkdownView(
+      defaultViewSettings.content,
+      { line: 0, ch: 5 },
+      { line: 0, ch: 10 }
+    );
+
+    expect(JSON.stringify(view)).toEqual(
+      '{"editor":{"content":["Lorem ipsum dolor sit amet, consectetur adipiscing elit.","Sed venenatis lectus et leo viverra, ac viverra purus rutrum.","","Etiam semper massa ut est faucibus, eu luctus arcu porttitor."],"selection":[{"line":0,"ch":5},{"line":0,"ch":10}]}}'
+    );
+
+    await toggleQuote(view, defaultPrefix);
+    expect(JSON.stringify(view)).toEqual(
+      '{"editor":{"content":["> Lorem ipsum dolor sit amet, consectetur adipiscing elit.","Sed venenatis lectus et leo viverra, ac viverra purus rutrum.","","Etiam semper massa ut est faucibus, eu luctus arcu porttitor."],"selection":[{"line":0,"ch":7},{"line":0,"ch":12}]}}'
+    );
+
+    await toggleQuote(view, defaultPrefix);
+    expect(JSON.stringify(view)).toEqual(
+      '{"editor":{"content":["Lorem ipsum dolor sit amet, consectetur adipiscing elit.","Sed venenatis lectus et leo viverra, ac viverra purus rutrum.","","Etiam semper massa ut est faucibus, eu luctus arcu porttitor."],"selection":[{"line":0,"ch":5},{"line":0,"ch":10}]}}'
+    );
+  });
+
+  test("Adds and removes blockquote from single line that starts with whitespace, with selection that is entirely in the whitespace", async () => {
+    const view = new MarkdownView(
+      [
+        "    " + defaultViewSettings.content[0],
+        ...defaultViewSettings.content.slice(1),
+      ],
+      { line: 0, ch: 0 },
+      { line: 0, ch: 4 }
+    );
+
+    expect(JSON.stringify(view)).toEqual(
+      '{"editor":{"content":["     Lorem ipsum dolor sit amet, consectetur adipiscing elit.","Sed venenatis lectus et leo viverra, ac viverra purus rutrum.","","Etiam semper massa ut est faucibus, eu luctus arcu porttitor."],"selection":[{"line":0,"ch":0},{"line":0,"ch":4}]}}'
+    );
+
+    await toggleQuote(view, defaultPrefix);
+    expect(JSON.stringify(view)).toEqual(
+      '{"editor":{"content":["     > Lorem ipsum dolor sit amet, consectetur adipiscing elit.","Sed venenatis lectus et leo viverra, ac viverra purus rutrum.","","Etiam semper massa ut est faucibus, eu luctus arcu porttitor."],"selection":[{"line":0,"ch":0},{"line":0,"ch":4}]}}'
+    );
+
+    await toggleQuote(view, defaultPrefix);
+    expect(JSON.stringify(view)).toEqual(
+      '{"editor":{"content":["     Lorem ipsum dolor sit amet, consectetur adipiscing elit.","Sed venenatis lectus et leo viverra, ac viverra purus rutrum.","","Etiam semper massa ut est faucibus, eu luctus arcu porttitor."],"selection":[{"line":0,"ch":0},{"line":0,"ch":4}]}}'
+    );
+  });
+
+  test("Adds and removes blockquote from multiple lines with partial-line selection", async () => {
+    const view = new MarkdownView(
+      defaultViewSettings,
+      { line: 0, ch: 5 },
+      { line: 1, ch: 5 }
+    );
+
+    expect(JSON.stringify(view)).toEqual(
+      '{"editor":{"content":["Lorem ipsum dolor sit amet, consectetur adipiscing elit.","Sed venenatis lectus et leo viverra, ac viverra purus rutrum.","","Etiam semper massa ut est faucibus, eu luctus arcu porttitor."],"selection":[{"line":0,"ch":5},{"line":1,"ch":5}]}}'
+    );
+
+    await toggleQuote(view, defaultPrefix);
+    expect(JSON.stringify(view)).toEqual(
+      '{"editor":{"content":["> Lorem ipsum dolor sit amet, consectetur adipiscing elit.","> Sed venenatis lectus et leo viverra, ac viverra purus rutrum.","","Etiam semper massa ut est faucibus, eu luctus arcu porttitor."],"selection":[{"line":0,"ch":7},{"line":1,"ch":7}]}}'
+    );
+
+    await toggleQuote(view, defaultPrefix);
+    expect(JSON.stringify(view)).toEqual(
+      '{"editor":{"content":["Lorem ipsum dolor sit amet, consectetur adipiscing elit.","Sed venenatis lectus et leo viverra, ac viverra purus rutrum.","","Etiam semper massa ut est faucibus, eu luctus arcu porttitor."],"selection":[{"line":0,"ch":5},{"line":1,"ch":7}]}}'
+    );
+  });
+});

jest.config.js

@@ -0,0 +1,9 @@
+module.exports = {
+  transform: {
+    "^.+\\.ts?$": "ts-jest",
+  },
+  testEnvironment: "jsdom",
+  // testRegex: "__tests__/.*\\.test?\\.ts$",
+  testMatch: ["**/__tests__/*.ts"],
+  moduleFileExtensions: ["ts", "js"],
+};