Merge pull request #16848 from gero3/addMathUnitTests

Add math unit tests

test/unit/src/math/Math.tests.js

@@ -49,9 +49,13 @@ export default QUnit.module( 'Maths', () => {
 
 		} );
 
-		QUnit.todo( "lerp", ( assert ) => {
+		QUnit.test( "lerp", ( assert ) => {
+
+
+			assert.strictEqual( ThreeMath.lerp( 1, 2, 0 ), 1, "Value equal to lower boundary" );
+			assert.strictEqual( ThreeMath.lerp( 1, 2, 1 ), 2, "Value equal to upper boundary" );
+			assert.strictEqual( ThreeMath.lerp( 1, 2, 0.4 ), 1.4, "Value within range" );
 
-			assert.ok( false, "everything's gonna be alright" );
 
 		} );
 
@@ -67,9 +71,15 @@ export default QUnit.module( 'Maths', () => {
 
 		} );
 
-		QUnit.todo( "smootherstep", ( assert ) => {
+		QUnit.test( "smootherstep", ( assert ) => {
 
-			assert.ok( false, "everything's gonna be alright" );
+			assert.strictEqual( ThreeMath.smootherstep( - 1, 0, 2 ), 0, "Value lower than minimum" );
+			assert.strictEqual( ThreeMath.smootherstep( 0, 0, 2 ), 0, "Value equal to minimum" );
+			assert.strictEqual( ThreeMath.smootherstep( 0.5, 0, 2 ), 0.103515625, "Value within limits" );
+			assert.strictEqual( ThreeMath.smootherstep( 1, 0, 2 ), 0.5, "Value within limits" );
+			assert.strictEqual( ThreeMath.smootherstep( 1.5, 0, 2 ), 0.896484375, "Value within limits" );
+			assert.strictEqual( ThreeMath.smootherstep( 2, 0, 2 ), 1, "Value equal to maximum" );
+			assert.strictEqual( ThreeMath.smootherstep( 3, 0, 2 ), 1, "Value highter than maximum" );
 
 		} );