1 files changed, 72 insertions, 0 deletions
diff --git a/tests/src/com/android/launcher3/util/rule/StaticMockitoRule.java b/tests/src/com/android/launcher3/util/rule/StaticMockitoRule.java
new file mode 100644
index 0000000000..6b91474f02
--- /dev/null
+++ b/tests/src/com/android/launcher3/util/rule/StaticMockitoRule.java
@@ -0,0 +1,72 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.android.launcher3.util.rule;
+
+import static com.android.dx.mockito.inline.extended.ExtendedMockito.mockitoSession;
+
+import com.android.dx.mockito.inline.extended.StaticMockitoSession;
+import com.android.dx.mockito.inline.extended.StaticMockitoSessionBuilder;
+
+import org.junit.rules.MethodRule;
+import org.junit.runners.model.FrameworkMethod;
+import org.junit.runners.model.Statement;
+import org.mockito.junit.MockitoRule;
+import org.mockito.quality.Strictness;
+
+/**
+ * Similar to {@link MockitoRule}, but uses {@link StaticMockitoSession}, which allows mocking
+ * static methods.
+ */
+public class StaticMockitoRule implements MethodRule {
+    private Class<?>[] mClasses;
+
+    public StaticMockitoRule(Class<?>... classes) {
+        mClasses = classes;
+    }
+
+    @Override
+    public Statement apply(Statement base, FrameworkMethod method, Object target) {
+        return new Statement() {
+            public void evaluate() throws Throwable {
+                StaticMockitoSessionBuilder builder =
+                        mockitoSession()
+                                .name(target.getClass().getSimpleName() + "." + method.getName())
+                                .initMocks(target)
+                                .strictness(Strictness.STRICT_STUBS);
+
+                for (Class<?> clazz : mClasses) {
+                    builder.mockStatic(clazz);
+                }
+
+                StaticMockitoSession session = builder.startMocking();
+                Throwable testFailure = evaluateSafely(base);
+                session.finishMocking(testFailure);
+                if (testFailure != null) {
+                    throw testFailure;
+                }
+            }
+
+            private Throwable evaluateSafely(Statement base) {
+                try {
+                    base.evaluate();
+                    return null;
+                } catch (Throwable throwable) {
+                    return throwable;
+                }
+            }
+        };
+    }
+}