feat: Test running overhaul, switch to Prettier & reformat everything (#1407)

* chore: Switch to Node 20 + Vitest

* chore: migrate to vitest mock functions

* chore: code style (switch to prettier)

* test: re-enable long-running test

Seems the switch to Node 20 and Vitest has vastly improved the code's and / or the test's runtime!

see #1193

* chore: code style

* chore: fix failing tests

* Updated Documentation in README.md

* Update contribution guidelines to state usage of Prettier

* fix: set prettier printWidth back to 80

* chore: apply updated code style automatically

* fix: set prettier line endings to lf again

* chore: apply updated code style automatically

---------

Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com>
Co-authored-by: Lars Müller <34514239+appgurueu@users.noreply.github.com>

Data-Structures/Vectors/test/Vector2.test.js

@@ -5,52 +5,80 @@ describe('Vector2', () => {
     it('should compare equality correctly', () => {
       expect(new Vector2(1, 0).equalsExactly(new Vector2(1, 0))).toBe(true)
 
-      expect(new Vector2(1.23, 4.56).equalsExactly(new Vector2(0, 0))).toBe(false)
+      expect(new Vector2(1.23, 4.56).equalsExactly(new Vector2(0, 0))).toBe(
+        false
+      )
     })
   })
 
   describe('#equalsApproximately', () => {
     it('should compare equality (approximately) correctly', () => {
-      expect(new Vector2(1, 0).equalsApproximately(new Vector2(1, 0.0000001), 0.000001))
-        .toBe(true)
+      expect(
+        new Vector2(1, 0).equalsApproximately(
+          new Vector2(1, 0.0000001),
+          0.000001
+        )
+      ).toBe(true)
 
-      expect(new Vector2(1.23, 4.56).equalsApproximately(new Vector2(1.24, 4.56), 0.000001))
-        .toBe(false)
+      expect(
+        new Vector2(1.23, 4.56).equalsApproximately(
+          new Vector2(1.24, 4.56),
+          0.000001
+        )
+      ).toBe(false)
     })
   })
 
   describe('#add', () => {
     it('should add two vectors correctly', () => {
-      expect(new Vector2(1, 0).add(new Vector2(0, 1)).equalsApproximately(new Vector2(1, 1), 0.000001))
-        .toBe(true)
+      expect(
+        new Vector2(1, 0)
+          .add(new Vector2(0, 1))
+          .equalsApproximately(new Vector2(1, 1), 0.000001)
+      ).toBe(true)
 
-      expect(new Vector2(-3.3, -9).add(new Vector2(-2.2, 3)).equalsApproximately(new Vector2(-5.5, -6), 0.000001))
-        .toBe(true)
+      expect(
+        new Vector2(-3.3, -9)
+          .add(new Vector2(-2.2, 3))
+          .equalsApproximately(new Vector2(-5.5, -6), 0.000001)
+      ).toBe(true)
     })
   })
 
   describe('#subtract', () => {
     it('should subtract two vectors correctly', () => {
-      expect(new Vector2(1, 0).subtract(new Vector2(0, 1)).equalsApproximately(new Vector2(1, -1), 0.000001))
-        .toBe(true)
+      expect(
+        new Vector2(1, 0)
+          .subtract(new Vector2(0, 1))
+          .equalsApproximately(new Vector2(1, -1), 0.000001)
+      ).toBe(true)
 
-      expect(new Vector2(234.5, 1.7).subtract(new Vector2(3.3, 2.7)).equalsApproximately(new Vector2(231.2, -1), 0.000001))
-        .toBe(true)
+      expect(
+        new Vector2(234.5, 1.7)
+          .subtract(new Vector2(3.3, 2.7))
+          .equalsApproximately(new Vector2(231.2, -1), 0.000001)
+      ).toBe(true)
     })
   })
 
   describe('#multiply', () => {
     it('should multiply two vectors correctly', () => {
-      expect(new Vector2(1, 0).multiply(5).equalsApproximately(new Vector2(5, 0), 0.000001))
-        .toBe(true)
+      expect(
+        new Vector2(1, 0)
+          .multiply(5)
+          .equalsApproximately(new Vector2(5, 0), 0.000001)
+      ).toBe(true)
 
-      expect(new Vector2(3.41, -7.12).multiply(-3.1).equalsApproximately(new Vector2(-10.571, 22.072), 0.000001))
-        .toBe(true)
+      expect(
+        new Vector2(3.41, -7.12)
+          .multiply(-3.1)
+          .equalsApproximately(new Vector2(-10.571, 22.072), 0.000001)
+      ).toBe(true)
     })
   })
 
   describe('#length', () => {
-    it('should calculate it\'s length correctly', () => {
+    it("should calculate it's length correctly", () => {
       expect(new Vector2(1, 0).length()).toBe(1)
 
       expect(new Vector2(-1, 1).length()).toBe(Math.sqrt(2))
@@ -59,11 +87,20 @@ describe('Vector2', () => {
 
   describe('#normalize', () => {
     it('should normalize vectors correctly', () => {
-      expect(new Vector2(1, 0).normalize().equalsApproximately(new Vector2(1, 0), 0.000001))
-        .toBe(true)
+      expect(
+        new Vector2(1, 0)
+          .normalize()
+          .equalsApproximately(new Vector2(1, 0), 0.000001)
+      ).toBe(true)
 
-      expect(new Vector2(1, -1).normalize().equalsApproximately(new Vector2(Math.sqrt(2) / 2, -Math.sqrt(2) / 2), 0.000001))
-        .toBe(true)
+      expect(
+        new Vector2(1, -1)
+          .normalize()
+          .equalsApproximately(
+            new Vector2(Math.sqrt(2) / 2, -Math.sqrt(2) / 2),
+            0.000001
+          )
+      ).toBe(true)
     })
   })
 
@@ -85,19 +122,29 @@ describe('Vector2', () => {
 
   describe('#rotate', () => {
     it('should rotate a vector correctly', () => {
-      expect(new Vector2(0, -1).rotate(Math.PI / 2).equalsApproximately(new Vector2(1, 0), 0.000001))
-        .toBe(true)
+      expect(
+        new Vector2(0, -1)
+          .rotate(Math.PI / 2)
+          .equalsApproximately(new Vector2(1, 0), 0.000001)
+      ).toBe(true)
 
-      expect(new Vector2(1.23, -4.56).rotate(Math.PI).equalsApproximately(new Vector2(-1.23, 4.56), 0.000001))
-        .toBe(true)
+      expect(
+        new Vector2(1.23, -4.56)
+          .rotate(Math.PI)
+          .equalsApproximately(new Vector2(-1.23, 4.56), 0.000001)
+      ).toBe(true)
     })
   })
 
   describe('#angleBetween', () => {
     it('should calculate the angle between two vectors correctly', () => {
-      expect(new Vector2(1, 0).angleBetween(new Vector2(0, 1))).toBe(Math.PI / 2)
+      expect(new Vector2(1, 0).angleBetween(new Vector2(0, 1))).toBe(
+        Math.PI / 2
+      )
 
-      expect(new Vector2(1, 0).angleBetween(new Vector2(1, -1))).toBe(-Math.PI / 4)
+      expect(new Vector2(1, 0).angleBetween(new Vector2(1, -1))).toBe(
+        -Math.PI / 4
+      )
     })
   })
 })