From f0d3ef5489ef86c48bdd2f2d67d61e1b8bed11ae Mon Sep 17 00:00:00 2001
From: seferturan <seferturan85@gmail.com>
Date: Wed, 12 Feb 2025 14:02:06 +0100
Subject: [PATCH] test(summary): comment utils

---
 .../comments/_internal/setScrollInfo.spec.ts  | 76 +++++++++++++++++++
 .../comments/_internal/spoilMeAnyway.spec.ts  | 32 ++++++++
 .../_internal/spoilerExtension.spec.ts        | 35 +++++++++
 .../comments/_internal/spoilerExtension.ts    | 35 ++++++---
 4 files changed, 168 insertions(+), 10 deletions(-)
 create mode 100644 projects/client/src/lib/sections/summary/components/comments/_internal/setScrollInfo.spec.ts
 create mode 100644 projects/client/src/lib/sections/summary/components/comments/_internal/spoilMeAnyway.spec.ts
 create mode 100644 projects/client/src/lib/sections/summary/components/comments/_internal/spoilerExtension.spec.ts

diff --git a/projects/client/src/lib/sections/summary/components/comments/_internal/setScrollInfo.spec.ts b/projects/client/src/lib/sections/summary/components/comments/_internal/setScrollInfo.spec.ts
new file mode 100644
index 000000000..c90c11674
--- /dev/null
+++ b/projects/client/src/lib/sections/summary/components/comments/_internal/setScrollInfo.spec.ts
@@ -0,0 +1,76 @@
+import { setScrollInfo } from '$lib/sections/summary/components/comments/_internal/setScrollInfo.ts';
+import { renderStore } from '$test/beds/store/renderStore.ts';
+import { describe, expect, it, vi } from 'vitest';
+
+describe('action: setScrollInfo', () => {
+  function scrollTo(
+    node: HTMLDivElement,
+    location: 'top' | 'middle' | 'bottom',
+  ) {
+    vi.spyOn(node, 'scrollHeight', 'get')
+      .mockReturnValueOnce(100);
+
+    vi.spyOn(node, 'clientHeight', 'get')
+      .mockReturnValueOnce(50);
+
+    switch (location) {
+      case 'top':
+        node.scrollTop = 0;
+        break;
+      case 'middle':
+        node.scrollTop = 25;
+        break;
+      case 'bottom':
+        node.scrollTop = 50;
+        break;
+    }
+
+    node.dispatchEvent(new Event('scroll'));
+  }
+
+  it('should not add scroll info if the node has no overflow', async () => {
+    const node = document.createElement('div');
+    const component = await renderStore(() => setScrollInfo(node));
+
+    expect(node.classList).not.toContain('scrolled-down');
+    expect(node.classList).not.toContain('scrolled-up');
+
+    component.destroy();
+  });
+
+  it('should indicate it scrolled down to the bottom', async () => {
+    const node = document.createElement('div');
+    const component = await renderStore(() => setScrollInfo(node));
+
+    scrollTo(node, 'bottom');
+
+    expect(node.classList).toContain('scrolled-down');
+    expect(node.classList).not.toContain('scrolled-up');
+
+    component.destroy();
+  });
+
+  it('should indicate it scrolled up to the top', async () => {
+    const node = document.createElement('div');
+    const component = await renderStore(() => setScrollInfo(node));
+
+    scrollTo(node, 'top');
+
+    expect(node.classList).not.toContain('scrolled-down');
+    expect(node.classList).toContain('scrolled-up');
+
+    component.destroy();
+  });
+
+  it('should indicate it scrolled a little', async () => {
+    const node = document.createElement('div');
+    const component = await renderStore(() => setScrollInfo(node));
+
+    scrollTo(node, 'middle');
+
+    expect(node.classList).toContain('scrolled-down');
+    expect(node.classList).toContain('scrolled-up');
+
+    component.destroy();
+  });
+});
diff --git a/projects/client/src/lib/sections/summary/components/comments/_internal/spoilMeAnyway.spec.ts b/projects/client/src/lib/sections/summary/components/comments/_internal/spoilMeAnyway.spec.ts
new file mode 100644
index 000000000..7573ea441
--- /dev/null
+++ b/projects/client/src/lib/sections/summary/components/comments/_internal/spoilMeAnyway.spec.ts
@@ -0,0 +1,32 @@
+import { SPOILER_CLASS_NAME } from '$lib/features/spoilers/constants.ts';
+import { spoilMeAnyway } from '$lib/sections/summary/components/comments/_internal/spoilMeAnyway.ts';
+import { renderStore } from '$test/beds/store/renderStore.ts';
+import { describe, expect, it } from 'vitest';
+
+describe('action: spoilMeAnyway', () => {
+  it('should remove spoilers on the entire comment', async () => {
+    const commentNode = document.createElement('div');
+    commentNode.classList.add(SPOILER_CLASS_NAME);
+
+    const component = await renderStore(() => spoilMeAnyway(commentNode));
+    commentNode.dispatchEvent(new Event('click'));
+
+    expect(commentNode.classList).not.toContain(SPOILER_CLASS_NAME);
+
+    component.destroy();
+  });
+
+  it('should remove spoilers in a comment', async () => {
+    const commentNode = document.createElement('div');
+    const spoilerNode = document.createElement('div');
+    commentNode.appendChild(spoilerNode);
+    spoilerNode.classList.add(SPOILER_CLASS_NAME);
+
+    const component = await renderStore(() => spoilMeAnyway(commentNode));
+    spoilerNode.dispatchEvent(new Event('click', { bubbles: true }));
+
+    expect(spoilerNode.classList).not.toContain(SPOILER_CLASS_NAME);
+
+    component.destroy();
+  });
+});
diff --git a/projects/client/src/lib/sections/summary/components/comments/_internal/spoilerExtension.spec.ts b/projects/client/src/lib/sections/summary/components/comments/_internal/spoilerExtension.spec.ts
new file mode 100644
index 000000000..19aa200de
--- /dev/null
+++ b/projects/client/src/lib/sections/summary/components/comments/_internal/spoilerExtension.spec.ts
@@ -0,0 +1,35 @@
+import { describe, expect, it } from 'vitest';
+import {
+  matchSpoilerTag,
+  matchSpoilerTagStart,
+  spoilerRenderer,
+} from './spoilerExtension.ts';
+
+describe('spoilerExtension', () => {
+  it('should match the start of a spoiler tag', () => {
+    const index = matchSpoilerTagStart('[spoiler]');
+    expect(index).to.equal(0);
+  });
+
+  it('should match the a spoiler tag', () => {
+    const match = matchSpoilerTag('[spoiler]test[/spoiler]');
+    expect(match).to.deep.equal(['[spoiler]test[/spoiler]', 'test']);
+  });
+
+  it('should not match the another tag', () => {
+    const match = matchSpoilerTag('[bold]test[/bold]');
+    expect(match).to.deep.equal(null);
+  });
+
+  it('should render a spoiler tag', () => {
+    const renderedResult = spoilerRenderer('test', false);
+
+    expect(renderedResult).to.equal("<p class='trakt-spoiler'>test</p>");
+  });
+
+  it('should not render a spoiler tag if the entire comment is a spoiler', () => {
+    const renderedResult = spoilerRenderer('test', true);
+
+    expect(renderedResult).to.equal('<p>test</p>');
+  });
+});
diff --git a/projects/client/src/lib/sections/summary/components/comments/_internal/spoilerExtension.ts b/projects/client/src/lib/sections/summary/components/comments/_internal/spoilerExtension.ts
index f3e3cb8a9..da9e9cb6f 100644
--- a/projects/client/src/lib/sections/summary/components/comments/_internal/spoilerExtension.ts
+++ b/projects/client/src/lib/sections/summary/components/comments/_internal/spoilerExtension.ts
@@ -1,5 +1,27 @@
 import type { TokenizerAndRendererExtension } from 'marked';
 
+export function matchSpoilerTagStart(src: string) {
+  return src.match(/\[spoiler\]/)?.index;
+}
+
+export function matchSpoilerTag(src: string) {
+  const rule = /^\[spoiler\](.*?)\[\/spoiler\]/;
+  return rule.exec(src);
+}
+
+export function spoilerRenderer(
+  text: string,
+  isCommentSpoiler: boolean,
+) {
+  if (isCommentSpoiler) {
+    // If the comment itself is already marked as a spoiler,
+    // then parse the individual spoilers as a normal paragraph
+    return `<p>${text}</p>`;
+  }
+
+  return `<p class='trakt-spoiler'>${text}</p>`;
+}
+
 export function spoilerExtension(
   isCommentSpoiler: boolean,
 ): TokenizerAndRendererExtension {
@@ -7,11 +29,10 @@ export function spoilerExtension(
     name: 'spoiler',
     level: 'inline',
     start(src: string) {
-      return src.match(/\[spoiler\]/)?.index;
+      return matchSpoilerTagStart(src);
     },
     tokenizer(src) {
-      const rule = /^\[spoiler\](.*?)\[\/spoiler\]/;
-      const match = rule.exec(src);
+      const match = matchSpoilerTag(src);
       if (match) {
         const token = {
           type: 'spoiler',
@@ -26,13 +47,7 @@ export function spoilerExtension(
       return undefined;
     },
     renderer(token) {
-      if (isCommentSpoiler) {
-        // If the comment itself is already marked as a spoiler,
-        // then parse the individual spoilers as a normal paragraph
-        return `<p'>${token.text}</p>`;
-      }
-
-      return `<p class='trakt-spoiler'>${token.text}</p>`;
+      return spoilerRenderer(token.text, isCommentSpoiler);
     },
   };
 }