🎉 Add test mode

extension.js

@@ -381,11 +381,16 @@ class Extension {
 
     // ----------------------------------------------------------- tweak actor transitions
 
+    // If we are currently performing integration test, all animations are set to a fixed
+    // duration and show a fixed frame from the middle of the animation.
+    const testMode = this._settings.get_boolean('test-mode');
+
     // The following is used to tweak the ongoing transitions of a window actor. Usually
     // windows are faded in / out scaled up / down slightly by GNOME Shell. Here, we allow
     // modifications to this behavior by the effects.
     const config = this._currentEffect.tweakTransition(actor, this._settings, forOpening);
-    const duration =
+    const duration = testMode ?
+        5000 :
         this._settings.get_int(this._currentEffect.getNick() + '-animation-time');
 
     // All animations are relative to the window's center.
@@ -416,9 +421,10 @@ class Extension {
       // Tweak the transition according to the config object. For some reason, there are
       // rare cases, where no transition is set up. This happens from time to time...
       if (transition) {
+        const middle = (config[property].to + config[property].from) / 2;
         transition.set_duration(duration);
-        transition.set_to(config[property].to);
+        transition.set_to(testMode ? middle : config[property].to);
-        transition.set_from(config[property].from);
+        transition.set_from(testMode ? middle : config[property].from);
         transition.set_progress_mode(config[property].mode);
       }
     }
@@ -454,8 +460,9 @@ class Extension {
 
       // Update uniforms at each frame.
       transition.connect('new-frame', (t) => {
-        shader.set_uniform_value('uProgress', t.get_progress());
+        shader.set_uniform_value('uProgress', testMode ? 0.5 : t.get_progress());
-        shader.set_uniform_value('uTime', 0.001 * t.get_elapsed_time());
+        shader.set_uniform_value(
+            'uTime', testMode ? duration / 2 : 0.001 * t.get_elapsed_time());
         shader.set_uniform_value('uSizeX', actor.width);
         shader.set_uniform_value('uSizeY', actor.height);
       });

schemas/org.gnome.shell.extensions.burn-my-windows.gschema.xml

@@ -25,6 +25,12 @@
       <description>The effect with this nick will be used for the next window-open animation.</description>
     </key>
 
+    <key name="test-mode" type="b">
+      <default>false</default>
+      <summary>Test Mode</summary>
+      <description>If set to true, all animations will show only one still frame to allow for continuous integration tests.</description>
+    </key>
+
     <!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -->
     <!-- Fire Options                                                                  -->
     <!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -->

src/BrokenGlass.js

@@ -150,6 +150,9 @@ if (utils.isInShellProcess()) {
         epicenterY                 = localY / actor.height;
       }
 
+      // If we are currently performing integration test, the animation uses a fixed seed.
+      const testMode = settings.get_boolean('test-mode');
+
       this.set_shader_source(`
 
         // Inject some common shader snippets.
@@ -157,7 +160,8 @@ if (utils.isInShellProcess()) {
 
         uniform sampler2D uShardTexture;
 
-        const vec2  SEED         = vec2(${Math.random()}, ${Math.random()});
+        const vec2  SEED         = vec2(${testMode ? 0 : Math.random()}, 
+                                        ${testMode ? 0 : Math.random()});
         const float SHARD_SCALE  = ${settings.get_double('broken-glass-scale')};
         const float SHARD_LAYERS = 5;
         const float BLOW_FORCE   = ${settings.get_double('broken-glass-blow-force')};

src/EnergizeA.js

@@ -117,6 +117,9 @@ if (utils.isInShellProcess()) {
 
       const color = Clutter.Color.from_string(settings.get_string('energize-a-color'))[1];
 
+      // If we are currently performing integration test, the animation uses a fixed seed.
+      const testMode = settings.get_boolean('test-mode');
+
       this.set_shader_source(`
 
       // Inject some common shader snippets.
@@ -124,7 +127,8 @@ if (utils.isInShellProcess()) {
       ${shaderSnippets.noise()}
       ${shaderSnippets.edgeMask()}
 
-      const vec2  SEED            = vec2(${Math.random()}, ${Math.random()});
+      const vec2  SEED            = vec2(${testMode ? 0 : Math.random()}, 
+                                         ${testMode ? 0 : Math.random()});
       const float FADE_IN_TIME    = 0.3;
       const float FADE_OUT_TIME   = 0.6;
       const float HEART_FADE_TIME = 0.3;

src/EnergizeB.js

@@ -117,6 +117,9 @@ if (utils.isInShellProcess()) {
 
       const color = Clutter.Color.from_string(settings.get_string('energize-b-color'))[1];
 
+      // If we are currently performing integration test, the animation uses a fixed seed.
+      const testMode = settings.get_boolean('test-mode');
+
       this.set_shader_source(`
 
       // Inject some common shader snippets.
@@ -124,7 +127,8 @@ if (utils.isInShellProcess()) {
       ${shaderSnippets.noise()}
       ${shaderSnippets.edgeMask()}
 
-      const vec2  SEED         = vec2(${Math.random()}, ${Math.random()});
+      const vec2  SEED         = vec2(${testMode ? 0 : Math.random()}, 
+                                      ${testMode ? 0 : Math.random()});
       const float SHOWER_TIME  = 0.3;
       const float SHOWER_WIDTH = 0.3;
       const float STREAK_TIME  = 0.6;

src/TRexAttack.js

@@ -132,6 +132,9 @@ if (utils.isInShellProcess()) {
       const color =
           Clutter.Color.from_string(settings.get_string('claw-scratch-color'))[1];
 
+      // If we are currently performing integration test, the animation uses a fixed seed.
+      const testMode = settings.get_boolean('test-mode');
+
       this.set_shader_source(`
 
         // Inject some common shader snippets.
@@ -141,7 +144,8 @@ if (utils.isInShellProcess()) {
         // See assets/README.md for how this texture was created.
         uniform sampler2D uClawTexture;
 
-        const vec2  SEED            = vec2(${Math.random()}, ${Math.random()});
+        const vec2  SEED            = vec2(${testMode ? 0 : Math.random()}, 
+                                           ${testMode ? 0 : Math.random()});
         const float CLAW_SIZE       = ${settings.get_double('claw-scratch-scale')};
         const float NUM_CLAWS       = ${settings.get_int('claw-scratch-count')};
         const float WARP_INTENSITY  = 1.0 + ${settings.get_double('claw-scratch-warp')};

src/Wisps.js

@@ -118,6 +118,9 @@ if (utils.isInShellProcess()) {
 
       const color = Clutter.Color.from_string(settings.get_string('wisps-color'))[1];
 
+      // If we are currently performing integration test, the animation uses a fixed seed.
+      const testMode = settings.get_boolean('test-mode');
+
       this.set_shader_source(`
 
       // Inject some common shader snippets.
@@ -125,7 +128,8 @@ if (utils.isInShellProcess()) {
       ${shaderSnippets.noise()}
       ${shaderSnippets.edgeMask()}
 
-      const vec2  SEED            = vec2(${Math.random()}, ${Math.random()});
+      const vec2  SEED            = vec2(${testMode ? 0 : Math.random()}, 
+                                         ${testMode ? 0 : Math.random()});
       const float WISPS_RADIUS    = 20.0;
       const float WISPS_SPEED     = 10.0;
       const float WISPS_SPACING   = 40 + WISPS_RADIUS;