pimped the site a little but and fixed impress

src/app/pages/about/about.component.spec.ts

@@ -0,0 +1,174 @@
+import { ComponentFixture, TestBed } from '@angular/core/testing';
+import { provideZonelessChangeDetection } from '@angular/core';
+import { By } from '@angular/platform-browser';
+import { provideRouter } from '@angular/router';
+import { provideTranslateService } from '@ngx-translate/core';
+import { AboutComponent } from './about.component';
+
+/**
+ * No translations are loaded, so the translate pipe echoes the key back. That is
+ * exactly what these tests want: they assert which key is rendered where, which
+ * is what the mismatched skill headings got wrong. Expected values are written
+ * out literally rather than read off the component, so a change to the component
+ * cannot silently move the assertion with it.
+ */
+describe('AboutComponent', () => {
+  let fixture: ComponentFixture<AboutComponent>;
+
+  beforeEach(async () => {
+    await TestBed.configureTestingModule({
+      imports: [AboutComponent],
+      providers: [
+        provideZonelessChangeDetection(),
+        provideRouter([]),
+        provideTranslateService({ lang: 'en', fallbackLang: 'en' }),
+      ],
+    }).compileComponents();
+
+    fixture = TestBed.createComponent(AboutComponent);
+    fixture.detectChanges();
+  });
+
+  function textOf(selector: string): string[] {
+    return fixture.debugElement
+      .queryAll(By.css(selector))
+      .map(element => element.nativeElement.textContent.trim());
+  }
+
+  function click(testId: string): void {
+    fixture.debugElement
+      .query(By.css(`[data-testid="${testId}"]`))
+      .nativeElement.click();
+    fixture.detectChanges();
+  }
+
+  function skillGroupTexts(): { heading: string; chips: string[] }[] {
+    return fixture.debugElement.queryAll(By.css('mat-chip-set')).map(chipSet => {
+      const group = chipSet.parent!;
+      const heading = group.query(By.css('h3')).nativeElement.textContent.trim();
+      const chips = group
+        .queryAll(By.css('mat-chip'))
+        .map(chip => chip.nativeElement.textContent.trim());
+      return { heading, chips };
+    });
+  }
+
+  describe('skills', () => {
+    it('renders the skill groups in the documented order', () => {
+      expect(skillGroupTexts().map(group => group.heading)).toEqual([
+        'ABOUT.SECTION.LANGUAGES',
+        'ABOUT.SECTION.ARCH_CLOUD',
+        'ABOUT.SECTION.SIM_ALGO',
+        'ABOUT.SECTION.AI_ENG',
+      ]);
+    });
+
+    it('lists languages under the languages heading, not under architecture', () => {
+      const languages = skillGroupTexts().find(group => group.heading === 'ABOUT.SECTION.LANGUAGES');
+
+      expect(languages).toBeDefined();
+      expect(languages!.chips).toContain('ABOUT.SKILLS.JAVA');
+      expect(languages!.chips).not.toContain('ABOUT.TOOLS.DOCKER');
+    });
+
+    it('lists infrastructure tools under the architecture heading', () => {
+      const architecture = skillGroupTexts().find(group => group.heading === 'ABOUT.SECTION.ARCH_CLOUD');
+
+      expect(architecture).toBeDefined();
+      expect(architecture!.chips).toContain('ABOUT.TOOLS.DOCKER');
+      expect(architecture!.chips).not.toContain('ABOUT.SKILLS.JAVA');
+    });
+
+    it('advertises AI-assisted engineering as its own group', () => {
+      const ai = skillGroupTexts().find(group => group.heading === 'ABOUT.SECTION.AI_ENG');
+
+      expect(ai).toBeDefined();
+      expect(ai!.chips).toContain('ABOUT.SKILLS.AI_HARNESS');
+    });
+  });
+
+  describe('experience', () => {
+    it('hides the pre-2010 positions until they are requested', () => {
+      expect(textOf('[data-testid="role"]')).toContain('ABOUT.XP.COMPANY9.ROLE');
+      expect(textOf('[data-testid="role"]')).not.toContain('ABOUT.XP.COMPANY0.ROLE');
+    });
+
+    it('reveals the earlier positions when the toggle button is clicked', () => {
+      click('toggle-experience');
+
+      expect(textOf('[data-testid="role"]')).toContain('ABOUT.XP.COMPANY0.ROLE');
+    });
+
+    it('reports the expanded state of the experience toggle to assistive technology', () => {
+      const toggle = fixture.debugElement.query(By.css('[data-testid="toggle-experience"]')).nativeElement;
+      expect(toggle.getAttribute('aria-expanded')).toBe('false');
+
+      click('toggle-experience');
+
+      expect(toggle.getAttribute('aria-expanded')).toBe('true');
+    });
+
+    it('draws the employer header once per run of consecutive roles', () => {
+      const companies = textOf('[data-testid="company"]');
+
+      // COMPANY5/4/3 are three consecutive Assyst roles and share one header.
+      expect(companies).toContain('ABOUT.XP.COMPANY5.COMPANY');
+      expect(companies).not.toContain('ABOUT.XP.COMPANY4.COMPANY');
+      expect(companies).not.toContain('ABOUT.XP.COMPANY3.COMPANY');
+    });
+
+    it('treats the two ColorDigital spells as separate blocks so the timeline stays chronological', () => {
+      const companies = textOf('[data-testid="company"]');
+
+      expect(companies).toContain('ABOUT.XP.COMPANY9.COMPANY');
+      expect(companies).toContain('ABOUT.XP.COMPANY7.COMPANY');
+    });
+
+    it('keeps the employer header at the seam when the earlier roles are appended', () => {
+      click('toggle-experience');
+
+      // COMPANY3 (Assyst) and COMPANY2 (TH Bingen) meet at the seam, so the
+      // first earlier role must still get its own header.
+      expect(textOf('[data-testid="company"]')).toContain('ABOUT.XP.COMPANY2.COMPANY');
+    });
+  });
+
+  describe('education', () => {
+    it('shows only the post-school entries until the toggle button is clicked', () => {
+      expect(textOf('[data-testid="education-where"]')).toContain('ABOUT.EDUCATION.E6.WHERE');
+      expect(textOf('[data-testid="education-where"]')).not.toContain('ABOUT.EDUCATION.E0.WHERE');
+
+      click('toggle-education');
+
+      expect(textOf('[data-testid="education-where"]')).toContain('ABOUT.EDUCATION.E0.WHERE');
+    });
+  });
+
+  describe('call to action', () => {
+    it('offers no download link, so nothing can point at a missing file', () => {
+      expect(fixture.debugElement.queryAll(By.css('a[download]')).length).toBe(0);
+    });
+
+    it('exposes the mail contact as a button rather than an empty link', () => {
+      const emptyLinks = fixture.debugElement
+        .queryAll(By.css('a'))
+        .filter(anchor => anchor.nativeElement.getAttribute('href') === '');
+
+      expect(emptyLinks.length).toBe(0);
+      expect(fixture.debugElement.query(By.css('[data-testid="contact-mail"]'))).toBeTruthy();
+    });
+
+    it('keeps the mail button in the same font as the links it sits next to', () => {
+      const mailButton = fixture.debugElement.query(By.css('[data-testid="contact-mail"]')).nativeElement;
+      const siblingLink = fixture.debugElement
+        .queryAll(By.css('a'))
+        .find(anchor => anchor.nativeElement.textContent.trim() === 'Codeberg')!.nativeElement;
+
+      const buttonStyle = getComputedStyle(mailButton);
+      const linkStyle = getComputedStyle(siblingLink);
+
+      expect(buttonStyle.fontSize).toBe(linkStyle.fontSize);
+      expect(buttonStyle.fontFamily).toBe(linkStyle.fontFamily);
+    });
+  });
+});