SkQP: add junit app

Change-Id: Ic32eaec6cce1509f07e7cf610717d3b12d335c89
Reviewed-on: https://skia-review.googlesource.com/83921
Reviewed-by: Hal Canary <halcanary@google.com>
Commit-Queue: Hal Canary <halcanary@google.com>

6 files changed, 199 insertions, 0 deletions

diff --git a/platform_tools/android/apps/settings.gradle b/platform_tools/android/apps/settings.gradle
index 75ce0a6db1..a8c2cb3fb4 100644
--- a/platform_tools/android/apps/settings.gradle
+++ b/platform_tools/android/apps/settings.gradle
@@ -1 +1,2 @@
 include ':viewer'
+include ':skqp'
diff --git a/platform_tools/android/apps/skqp/build.gradle b/platform_tools/android/apps/skqp/build.gradle
new file mode 100644
index 0000000000..0a883ca869
--- /dev/null
+++ b/platform_tools/android/apps/skqp/build.gradle
@@ -0,0 +1,30 @@
+/*
+ * Copyright 2017 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+apply plugin: 'com.android.application'
+
+dependencies {
+    compile 'com.android.support:support-annotations:24.0.0'
+    compile 'com.android.support.test:runner:0.5'
+    compile group: 'junit', name: 'junit', version: '4.+'
+}
+
+android {
+    compileSdkVersion 23
+    buildToolsVersion "22.0.1"
+    defaultConfig {
+        applicationId "org.skia.skqp"
+        minSdkVersion 19
+        targetSdkVersion 19
+        versionCode 1
+        versionName "1.0"
+        signingConfig signingConfigs.debug
+    }
+    sourceSets.main.jni.srcDirs = []
+    sourceSets.main.jniLibs.srcDir "src/main/libs"
+    productFlavors { arm {}; arm64 {}; x86 {}; x64 {}; arm64vulkan{}; }
+    setupSkiaLibraryBuild(project, applicationVariants, "libskqp_app")
+}
diff --git a/platform_tools/android/apps/skqp/src/main/AndroidManifest.xml b/platform_tools/android/apps/skqp/src/main/AndroidManifest.xml
new file mode 100644
index 0000000000..30028fb436
--- /dev/null
+++ b/platform_tools/android/apps/skqp/src/main/AndroidManifest.xml
@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+          package="org.skia.skqp"
+          android:versionCode="1"
+          android:versionName="1.0">
+  <application><uses-library android:name="android.test.runner" /></application>
+  <instrumentation android:name="android.support.test.runner.AndroidJUnitRunner"
+                   android:targetPackage="org.skia.skqp"></instrumentation>
+</manifest>
diff --git a/platform_tools/android/apps/skqp/src/main/java/org/skia/skqp/SkQP.java b/platform_tools/android/apps/skqp/src/main/java/org/skia/skqp/SkQP.java
new file mode 100644
index 0000000000..c5843f013e
--- /dev/null
+++ b/platform_tools/android/apps/skqp/src/main/java/org/skia/skqp/SkQP.java
@@ -0,0 +1,14 @@
+/*
+ * Copyright 2017 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+package org.skia.skqp;
+
+import org.junit.runner.RunWith;
+
+@RunWith(SkQPRunner.class)
+public class SkQP {}
+
diff --git a/platform_tools/android/apps/skqp/src/main/java/org/skia/skqp/SkQPException.java b/platform_tools/android/apps/skqp/src/main/java/org/skia/skqp/SkQPException.java
new file mode 100644
index 0000000000..a7c8721bfb
--- /dev/null
+++ b/platform_tools/android/apps/skqp/src/main/java/org/skia/skqp/SkQPException.java
@@ -0,0 +1,12 @@
+/*
+ * Copyright 2017 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+package org.skia.skqp;
+
+public class SkQPException extends Exception {
+    public SkQPException(String m) { super(m); }
+}
diff --git a/platform_tools/android/apps/skqp/src/main/java/org/skia/skqp/SkQPRunner.java b/platform_tools/android/apps/skqp/src/main/java/org/skia/skqp/SkQPRunner.java
new file mode 100644
index 0000000000..1cf3aef9e2
--- /dev/null
+++ b/platform_tools/android/apps/skqp/src/main/java/org/skia/skqp/SkQPRunner.java
@@ -0,0 +1,133 @@
+/*
+ * Copyright 2017 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+package org.skia.skqp;
+
+import android.content.Context;
+import android.content.res.AssetManager;
+import android.content.res.Resources;
+import android.support.test.InstrumentationRegistry;
+import android.util.Log;
+import java.io.File;
+import java.io.IOException;
+import java.lang.annotation.Annotation;
+import org.junit.runner.Description;
+import org.junit.runner.Runner;
+import org.junit.runner.notification.Failure;
+import org.junit.runner.notification.RunNotifier;
+
+public class SkQPRunner extends Runner {
+    private native void nInit(AssetManager assetManager, String dataDir);
+    private native float nExecuteGM(int gm, int backend) throws SkQPException;
+    private native String[] nExecuteUnitTest(int test);
+
+    private AssetManager mAssetManager;
+    private String[] mGMs;
+    private String[] mBackends;
+    private String[] mUnitTests;
+
+    private static boolean sOnceFlag = false;
+    private static final String kSkiaGM = "SkiaGM_";
+    private static final String kSkiaUnitTests = "Skia_UnitTests";
+
+    private Description mDescription;
+
+    private static void DeleteDirectoryContents(File f) throws IOException {
+        for (File s : f.listFiles()) {
+            if (s.isDirectory()) {
+                SkQPRunner.DeleteDirectoryContents(s);
+            }
+            s.delete();
+        }
+    }
+
+    private static void Fail(Description desc, RunNotifier notifier, String failure) {
+        notifier.fireTestFailure(new Failure(desc, new Throwable(failure)));
+    }
+
+    ////////////////////////////////////////////////////////////////////////////
+
+    public SkQPRunner(Class testClass) {
+        synchronized (SkQPRunner.class) {
+            if (sOnceFlag) {
+                throw new IllegalStateException("Error multiple SkQPs defined");
+            }
+            sOnceFlag = true;
+        }
+        System.loadLibrary("skqp_app");
+
+        Context context = InstrumentationRegistry.getTargetContext();
+        File filesDir = context.getFilesDir();
+        try {
+            SkQPRunner.DeleteDirectoryContents(filesDir);
+        } catch (IOException e) {
+            Log.w("org.skis.skqp", "DeleteDirectoryContents: " + e.getMessage());
+        }
+
+        Resources resources = context.getResources();
+        mAssetManager = resources.getAssets();
+        this.nInit(mAssetManager, filesDir.getAbsolutePath());
+
+        mDescription = Description.createSuiteDescription(testClass);
+        Annotation annots[] = new Annotation[0];
+        for (int backend = 0; backend < mBackends.length; backend++) {
+            String classname = kSkiaGM + mBackends[backend];
+            for (int gm = 0; gm < mGMs.length; gm++) {
+                mDescription.addChild(Description.createTestDescription(classname, mGMs[gm], annots));
+            }
+        }
+        for (int unitTest = 0; unitTest < mUnitTests.length; unitTest++) {
+            mDescription.addChild(Description.createTestDescription(kSkiaUnitTests,
+                        mUnitTests[unitTest], annots));
+        }
+    }
+
+    @Override
+    public Description getDescription() { return mDescription; }
+
+    @Override
+    public int testCount() { return mUnitTests.length + mGMs.length * mBackends.length; }
+
+    @Override
+    public void run(RunNotifier notifier) {
+        Annotation annots[] = new Annotation[0];
+        for (int backend = 0; backend < mBackends.length; backend++) {
+            String classname = kSkiaGM + mBackends[backend];
+            for (int gm = 0; gm < mGMs.length; gm++) {
+                Description desc = Description.createTestDescription(classname, mGMs[gm], annots);
+                notifier.fireTestStarted(desc);
+                float value = java.lang.Float.MAX_VALUE;
+                String error = null;
+                try {
+                    value = this.nExecuteGM(gm, backend);
+                } catch (SkQPException exept) {
+                    error = exept.getMessage();
+                }
+                if (error != null) {
+                    SkQPRunner.Fail(desc, notifier, String.format("Exception: %s", error));
+                } else if (value != 0) {
+                    SkQPRunner.Fail(desc, notifier, String.format(
+                                "Image mismatch: max channel diff = %f", value));
+                }
+                notifier.fireTestFinished(desc);
+            }
+        }
+        for (int unitTest = 0; unitTest < mUnitTests.length; unitTest++) {
+            Description desc = Description.createTestDescription(
+                    kSkiaUnitTests, mUnitTests[unitTest], annots);
+            notifier.fireTestStarted(desc);
+            String[] errors = this.nExecuteUnitTest(unitTest);
+            if (errors != null && errors.length > 0) {
+                for (String error : errors) {
+                    SkQPRunner.Fail(desc, notifier, error);
+                }
+            }
+            notifier.fireTestFinished(desc);
+        }
+    }
+}
+