Implementation + tests for loud? block

src/blocks/scratch3_sensing.js

@@ -65,6 +65,7 @@ class Scratch3SensingBlocks {
             sensing_current: this.current,
             sensing_dayssince2000: this.daysSince2000,
             sensing_loudness: this.getLoudness,
+            sensing_loud: this.isLoud,
             sensing_askandwait: this.askAndWait,
             sensing_answer: this.getAnswer
         };
@@ -249,6 +250,10 @@ class Scratch3SensingBlocks {
         return this._cachedLoudness;
     }
 
+    isLoud () {
+        return this.getLoudness() > 10;
+    }
+
     getAttributeOf (args) {
         let attrTarget;
 

src/serialization/sb2_specmap.js

@@ -964,6 +964,11 @@ const specMap = {
         argMap: [
         ]
     },
+    'isLoud': {
+        opcode: 'sensing_loud',
+        argMap: [
+        ]
+    },
     // 'senseVideoMotion': {
     //     opcode: 'sensing_videoon',
     //     argMap: [

test/unit/blocks_sensing.js

@@ -123,3 +123,23 @@ test('get loudness with caching', t => {
 
     t.end();
 });
+
+test('loud? boolean', t => {
+    const rt = new Runtime();
+    const sensing = new Sensing(rt);
+
+    // The simplest way to test this is to actually override the getLoudness
+    // method, which isLoud uses.
+    let simulatedLoudness = 0;
+    sensing.getLoudness = () => simulatedLoudness;
+    t.false(sensing.isLoud());
+
+    // Check for GREATER than 10, not equal.
+    simulatedLoudness = 10;
+    t.false(sensing.isLoud());
+
+    simulatedLoudness = 11;
+    t.true(sensing.isLoud());
+
+    t.end();
+})