1 files changed, 107 insertions, 0 deletions
diff --git a/devtools/client/canvasdebugger/test/browser_canvas-actor-test-10.js b/devtools/client/canvasdebugger/test/browser_canvas-actor-test-10.js
new file mode 100644
index 000000000..672ef9662
--- /dev/null
+++ b/devtools/client/canvasdebugger/test/browser_canvas-actor-test-10.js
@@ -0,0 +1,107 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+/**
+ * Tests that the correct framebuffer, renderbuffer and textures are re-bound
+ * after generating screenshots using the actor.
+ */
+
+function* ifTestingSupported() {
+  let { target, front } = yield initCanvasDebuggerBackend(WEBGL_BINDINGS_URL);
+  loadFrameScripts();
+
+  let navigated = once(target, "navigate");
+
+  yield front.setup({ reload: true });
+  ok(true, "The front was setup up successfully.");
+
+  yield navigated;
+  ok(true, "Target automatically navigated when the front was set up.");
+
+  let snapshotActor = yield front.recordAnimationFrame();
+  let animationOverview = yield snapshotActor.getOverview();
+  let functionCalls = animationOverview.calls;
+
+  let firstScreenshot = yield snapshotActor.generateScreenshotFor(functionCalls[0]);
+  is(firstScreenshot.index, -1,
+    "The first screenshot didn't encounter any draw call.");
+  is(firstScreenshot.scaling, 0.25,
+    "The first screenshot has the correct scaling.");
+  is(firstScreenshot.width, CanvasFront.WEBGL_SCREENSHOT_MAX_HEIGHT,
+    "The first screenshot has the correct width.");
+  is(firstScreenshot.height, CanvasFront.WEBGL_SCREENSHOT_MAX_HEIGHT,
+    "The first screenshot has the correct height.");
+  is(firstScreenshot.flipped, true,
+    "The first screenshot has the correct 'flipped' flag.");
+  is(firstScreenshot.pixels.length, 0,
+    "The first screenshot should be empty.");
+
+  is((yield evalInDebuggee("gl.getParameter(gl.FRAMEBUFFER_BINDING) === customFramebuffer")),
+    true,
+    "The debuggee's gl context framebuffer wasn't changed.");
+  is((yield evalInDebuggee("gl.getParameter(gl.RENDERBUFFER_BINDING) === customRenderbuffer")),
+    true,
+    "The debuggee's gl context renderbuffer wasn't changed.");
+  is((yield evalInDebuggee("gl.getParameter(gl.TEXTURE_BINDING_2D) === customTexture")),
+    true,
+    "The debuggee's gl context texture binding wasn't changed.");
+  is((yield evalInDebuggee("gl.getParameter(gl.VIEWPORT)[0]")),
+    128,
+    "The debuggee's gl context viewport's left coord. wasn't changed.");
+  is((yield evalInDebuggee("gl.getParameter(gl.VIEWPORT)[1]")),
+    256,
+    "The debuggee's gl context viewport's left coord. wasn't changed.");
+  is((yield evalInDebuggee("gl.getParameter(gl.VIEWPORT)[2]")),
+    384,
+    "The debuggee's gl context viewport's left coord. wasn't changed.");
+  is((yield evalInDebuggee("gl.getParameter(gl.VIEWPORT)[3]")),
+    512,
+    "The debuggee's gl context viewport's left coord. wasn't changed.");
+
+  let secondScreenshot = yield snapshotActor.generateScreenshotFor(functionCalls[1]);
+  is(secondScreenshot.index, 1,
+    "The second screenshot has the correct index.");
+  is(secondScreenshot.width, CanvasFront.WEBGL_SCREENSHOT_MAX_HEIGHT,
+    "The second screenshot has the correct width.");
+  is(secondScreenshot.height, CanvasFront.WEBGL_SCREENSHOT_MAX_HEIGHT,
+    "The second screenshot has the correct height.");
+  is(secondScreenshot.scaling, 0.25,
+    "The second screenshot has the correct scaling.");
+  is(secondScreenshot.flipped, true,
+    "The second screenshot has the correct 'flipped' flag.");
+  is(secondScreenshot.pixels.length, Math.pow(CanvasFront.WEBGL_SCREENSHOT_MAX_HEIGHT, 2) * 4,
+    "The second screenshot should not be empty.");
+  is(secondScreenshot.pixels[0], 0,
+    "The second screenshot has the correct red component.");
+  is(secondScreenshot.pixels[1], 0,
+    "The second screenshot has the correct green component.");
+  is(secondScreenshot.pixels[2], 255,
+    "The second screenshot has the correct blue component.");
+  is(secondScreenshot.pixels[3], 255,
+    "The second screenshot has the correct alpha component.");
+
+  is((yield evalInDebuggee("gl.getParameter(gl.FRAMEBUFFER_BINDING) === customFramebuffer")),
+    true,
+    "The debuggee's gl context framebuffer still wasn't changed.");
+  is((yield evalInDebuggee("gl.getParameter(gl.RENDERBUFFER_BINDING) === customRenderbuffer")),
+    true,
+    "The debuggee's gl context renderbuffer still wasn't changed.");
+  is((yield evalInDebuggee("gl.getParameter(gl.TEXTURE_BINDING_2D) === customTexture")),
+    true,
+    "The debuggee's gl context texture binding still wasn't changed.");
+  is((yield evalInDebuggee("gl.getParameter(gl.VIEWPORT)[0]")),
+    128,
+    "The debuggee's gl context viewport's left coord. still wasn't changed.");
+  is((yield evalInDebuggee("gl.getParameter(gl.VIEWPORT)[1]")),
+    256,
+    "The debuggee's gl context viewport's left coord. still wasn't changed.");
+  is((yield evalInDebuggee("gl.getParameter(gl.VIEWPORT)[2]")),
+    384,
+    "The debuggee's gl context viewport's left coord. still wasn't changed.");
+  is((yield evalInDebuggee("gl.getParameter(gl.VIEWPORT)[3]")),
+    512,
+    "The debuggee's gl context viewport's left coord. still wasn't changed.");
+
+  yield removeTab(target.tab);
+  finish();
+}