Add Perf jobs for PathKit

We have a similar ingestion strategy to Gold.

I tried to use something off the shelf like benchmark.js
but passing the PathKit context into the benchmarks was
non-trivial. Plus, making a basic benchmarking tool
ended up being not too hard.

We should be able to re-use the docker container/aggregator
for CanvasKit too.

Bug: skia:
Change-Id: I613dfc58ea57c31cf71566a8ac55f8df9272ad25
Reviewed-on: https://skia-review.googlesource.com/c/161620
Commit-Queue: Kevin Lubick <kjlubick@google.com>
Reviewed-by: Joe Gregorio <jcgregorio@google.com>
Reviewed-by: Stephan Altmueller <stephana@google.com>
diff --git a/modules/pathkit/perf/path.bench.js b/modules/pathkit/perf/path.bench.js
new file mode 100644
index 0000000..35d8b25
--- /dev/null
+++ b/modules/pathkit/perf/path.bench.js
@@ -0,0 +1,313 @@
+
+
+describe('PathKit\'s Path Behavior', function() {
+    // Note, don't try to print the PathKit object - it can cause Karma/Jasmine to lock up.
+    var PathKit = null;
+    const LoadPathKit = new Promise(function(resolve, reject) {
+        if (PathKit) {
+            resolve();
+        } else {
+            PathKitInit({
+                locateFile: (file) => '/pathkit/'+file,
+            }).then((_PathKit) => {
+                PathKit = _PathKit;
+                resolve();
+            });
+        }
+    });
+
+    function drawPath() {
+        let path = PathKit.NewPath();
+        path.moveTo(20, 5);
+        path.lineTo(30, 20);
+        path.lineTo(40, 10);
+        path.lineTo(50, 20);
+        path.lineTo(60, 0);
+        path.lineTo(20, 5);
+
+        path.moveTo(20, 80);
+        path.bezierCurveTo(90, 10, 160, 150, 190, 10);
+
+        path.moveTo(36, 148);
+        path.quadraticCurveTo(66, 188, 120, 136);
+        path.lineTo(36, 148);
+
+        path.rect(5, 170, 20, 20);
+
+        path.moveTo(150, 180);
+        path.arcTo(150, 100, 50, 200, 20);
+        path.lineTo(160, 160);
+
+        path.moveTo(20, 120);
+        path.arc(20, 120, 18, 0, 1.75 * Math.PI);
+        path.lineTo(20, 120);
+
+        let secondPath = PathKit.NewPath();
+        secondPath.ellipse(130, 25, 30, 10, -1*Math.PI/8, Math.PI/6, 1.5*Math.PI, false);
+
+        path.addPath(secondPath);
+
+        let m = document.createElementNS('http://www.w3.org/2000/svg', 'svg').createSVGMatrix();
+        m.a = 1; m.b = 0;
+        m.c = 0; m.d = 1;
+        m.e = 0; m.f = 20.5;
+
+        path.addPath(secondPath, m);
+        secondPath.delete();
+        return path;
+    }
+
+    it('path_path2dapi', function(done) {
+        function setup(ctx) { }
+
+        function test(ctx) {
+            path = drawPath();
+            path.delete();
+        }
+
+        function teardown(ctx) { }
+
+        LoadPathKit.then(() => {
+            benchmarkAndReport('path_path2dapi', setup, test, teardown).then(() => {
+                done();
+            }).catch(reportError(done));
+        });
+    });
+
+    describe('import options', function() {
+        it('path_copy', function(done) {
+            function setup(ctx) {
+                ctx.path = PathKit.FromSVGString('M 205,5 L 795,5 L 595,295 L 5,295 L 205,5 z');
+            }
+
+            function test(ctx) {
+                let p = ctx.path.copy();
+                p.delete();
+            }
+
+            function teardown(ctx) {
+                ctx.path.delete();
+            }
+
+            LoadPathKit.then(() => {
+                benchmarkAndReport('path_copy', setup, test, teardown).then(() => {
+                    done();
+                }).catch(reportError(done));
+            });
+        });
+
+        it('path_from_api_calls', function(done) {
+            function setup(ctx) { }
+
+            function test(ctx) {
+                let p = PathKit.NewPath()
+                               .moveTo(205, 5)
+                               .lineTo(795, 5)
+                               .lineTo(595, 295)
+                               .lineTo(5, 295)
+                               .lineTo(205, 5)
+                               .close();
+                p.delete();
+            }
+
+            function teardown(ctx) { }
+
+            LoadPathKit.then(() => {
+                benchmarkAndReport('path_from_api_calls', setup, test, teardown).then(() => {
+                    done();
+                }).catch(reportError(done));
+            });
+        });
+
+        it('path_fromCmds', function(done) {
+            function setup(ctx) { }
+
+            function test(ctx) {
+                let p = PathKit.FromCmds(
+                    [[PathKit.MOVE_VERB, 205, 5],
+                    [PathKit.LINE_VERB, 795, 5],
+                    [PathKit.LINE_VERB, 595, 295],
+                    [PathKit.LINE_VERB, 5, 295],
+                    [PathKit.LINE_VERB, 205, 5],
+                    [PathKit.CLOSE_VERB]]);
+                p.delete();
+            }
+
+            function teardown(ctx) { }
+
+            LoadPathKit.then(() => {
+                benchmarkAndReport('path_fromCmds', setup, test, teardown).then(() => {
+                    done();
+                }).catch(reportError(done));
+            });
+        });
+
+        it('path_fromSVGString', function(done) {
+            function setup(ctx) {}
+
+            function test(ctx) {
+                // https://upload.wikimedia.org/wikipedia/commons/e/e7/Simple_parallelogram.svg
+                let p = PathKit.FromSVGString('M 205,5 L 795,5 L 595,295 L 5,295 L 205,5 z');
+                p.delete();
+            }
+
+            function teardown(ctx) { }
+
+            LoadPathKit.then(() => {
+                benchmarkAndReport('path_fromSVGString', setup, test, teardown).then(() => {
+                    done();
+                }).catch(reportError(done));
+            });
+        });
+    });
+
+    describe('export options', function() {
+        it('path_toCmds', function(done) {
+            function setup(ctx) {
+                ctx.path = drawPath();
+            }
+
+            function test(ctx) {
+                ctx.path.toCmds();
+            }
+
+            function teardown(ctx) {
+                ctx.path.delete();
+            }
+
+            LoadPathKit.then(() => {
+                benchmarkAndReport('path_toCmds', setup, test, teardown).then(() => {
+                    done();
+                }).catch(reportError(done));
+            });
+        });
+
+        it('path_toPath2D', function(done) {
+            function setup(ctx) {
+                ctx.path = drawPath();
+            }
+
+            function test(ctx) {
+                ctx.path.toPath2D();
+            }
+
+            function teardown(ctx) {
+                ctx.path.delete();
+            }
+
+            LoadPathKit.then(() => {
+                benchmarkAndReport('path_toPath2D', setup, test, teardown).then(() => {
+                    done();
+                }).catch(reportError(done));
+            });
+        });
+
+        it('path_toSVGString', function(done) {
+            function setup(ctx) {
+                ctx.path = drawPath();
+            }
+
+            function test(ctx) {
+                ctx.path.toSVGString();
+            }
+
+            function teardown(ctx) {
+                ctx.path.delete();
+            }
+
+            LoadPathKit.then(() => {
+                benchmarkAndReport('path_toSVGString', setup, test, teardown).then(() => {
+                    done();
+                }).catch(reportError(done));
+            });
+        });
+    });
+
+    describe('matrix options', function() {
+        function drawTriangle() {
+            let path = PathKit.NewPath();
+            path.moveTo(0, 0);
+            path.lineTo(10, 0);
+            path.lineTo(10, 10);
+            path.close();
+            return path;
+        }
+
+        it('path_add_path_svgmatrix', function(done) {
+            function setup(ctx) {
+                ctx.path = drawTriangle();
+            }
+
+            function test(ctx) {
+                let path = PathKit.NewPath();
+                let m = document.createElementNS('http://www.w3.org/2000/svg', 'svg').createSVGMatrix();
+                m.a = 1; m.b = 0;
+                m.c = 0; m.d = 1;
+                m.e = 0; m.f = 20.5;
+                path.addPath(ctx.path, m);
+                path.delete();
+            }
+
+            function teardown(ctx) {
+                ctx.path.delete();
+            }
+
+            LoadPathKit.then(() => {
+                benchmarkAndReport('path_add_path_svgmatrix', setup, test, teardown).then(() => {
+                    done();
+                }).catch(reportError(done));
+            });
+        });
+
+        it('path_add_path_svgmatrix_reuse', function(done) {
+            function setup(ctx) {
+                ctx.path = drawTriangle();
+                let m = document.createElementNS('http://www.w3.org/2000/svg', 'svg').createSVGMatrix();
+                ctx.matrix = m;
+            }
+
+            function test(ctx) {
+                let path = PathKit.NewPath();
+                let m = ctx.matrix
+                m.a = 1; m.b = 0;
+                m.c = 0; m.d = 1;
+                m.e = 0; m.f = 20.5;
+                path.addPath(ctx.path, m);
+                path.delete();
+            }
+
+            function teardown(ctx) {
+                ctx.path.delete();
+            }
+
+            LoadPathKit.then(() => {
+                benchmarkAndReport('path_add_path_svgmatrix_reuse', setup, test, teardown).then(() => {
+                    done();
+                }).catch(reportError(done));
+            });
+        });
+
+        it('path_add_path_svgmatrix_bare', function(done) {
+            function setup(ctx) {
+                ctx.path = drawTriangle();
+            }
+
+            function test(ctx) {
+                let path = PathKit.NewPath();
+                path.addPath(ctx.path, 1, 0, 0, 1, 0, 20.5);
+                path.delete();
+            }
+
+            function teardown(ctx) {
+                ctx.path.delete();
+            }
+
+            LoadPathKit.then(() => {
+                benchmarkAndReport('path_add_path_svgmatrix_bare', setup, test, teardown).then(() => {
+                    done();
+                }).catch(reportError(done));
+            });
+        });
+    });
+
+});
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