Simple tests to verify function tables.

chr15m · Dec 12, 2022 · d152794 · d152794
1 parent a05a32f
commit d152794
Show file tree

Hide file tree

Showing 2 changed files with 34 additions and 1 deletion.
diff --git a/package.json b/package.json
@@ -14,7 +14,8 @@
   },
   "keywords": ["sfxr", "jsfxr", "8-bit", "sfx", "sound effects", "synth", "8bit", "retro", "chiptune", "audio", "music", "sound", "game development"],
   "devDependencies": {
-    "live-server": "^1.2.1"
+    "live-server": "1.2.1",
+    "tape": "5.6.1"
   },
   "scripts": {
     "serve": "live-server"

diff --git a/tests.js b/tests.js
@@ -0,0 +1,32 @@
+var test = require("tape");
+var j = require("./sfxr");
+
+test('test converting values from sliders to domain and back again', async function (t) {
+  const keys = Object.keys(j.convert.sliders);
+  for (k in j.convert.sliders) {
+  //for (k in {"p_lpf_freq": true}) {
+    let tolerance = 0.0001;
+    // if (["p_arp_speed", "p_repeat_speed"].indexOf(k) != -1) continue;
+    // special case these because the rounding in the slider conversion destroys information
+    if (["p_arp_speed", "p_repeat_speed"].indexOf(k) != -1) tolerance = 0.004;
+    const start = j.parameters.signed.indexOf(k) == -1 ? 0 : -1;
+    const table = [];
+    for (i=start; i<=1; i+=0.01) {
+      const r1 = j.convert.sliders[k](i);
+      const r2 = j.convert.domain[k](r1);
+      const r3 = j.convert.domain_inverse[k](r2);
+      const r4 = j.convert.sliders_inverse[k](r3);
+      table[i] = {"slider": r1, "slider_inv": j.convert.sliders_inverse[k](r1), "domain": r2, "domain_inv": r3, "round_trip": r4};
+      //console.log(i, r1, j.convert.sliders_inverse[k](r1), r2, r3, r4);
+      var pass = Math.abs(i - r4) < tolerance;
+      if (!pass) {
+        console.table(table);
+      }
+      t.ok(pass, k + " at " + i + " =~ " + r4);
+      if (!pass) {
+        process.exit();
+      }
+    }
+    console.table(table);
+  }
+});