1 files changed, 74 insertions, 0 deletions
diff --git a/src/test/java/com/google/testing/junit/testparameterinjector/PluggableTestRunnerTest.java b/src/test/java/com/google/testing/junit/testparameterinjector/PluggableTestRunnerTest.java
new file mode 100644
index 0000000..686b152
--- /dev/null
+++ b/src/test/java/com/google/testing/junit/testparameterinjector/PluggableTestRunnerTest.java
@@ -0,0 +1,74 @@
+/*
+ * Copyright 2021 Google Inc.
+ *
+ * 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.google.testing.junit.testparameterinjector;
+
+import static com.google.common.truth.Truth.assertThat;
+
+import com.google.common.collect.ImmutableList;
+import java.util.List;
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.rules.MethodRule;
+import org.junit.rules.TestRule;
+import org.junit.runner.Description;
+import org.junit.runner.RunWith;
+import org.junit.runners.JUnit4;
+import org.junit.runners.model.FrameworkMethod;
+import org.junit.runners.model.Statement;
+
+@RunWith(JUnit4.class)
+public class PluggableTestRunnerTest {
+
+  private static int ruleInvocationCount = 0;
+
+  public static class TestAndMethodRule implements MethodRule, TestRule {
+
+    @Override
+    public Statement apply(Statement base, Description description) {
+      ruleInvocationCount++;
+      return base;
+    }
+
+    @Override
+    public Statement apply(Statement base, FrameworkMethod method, Object target) {
+      ruleInvocationCount++;
+      return base;
+    }
+  }
+
+  @RunWith(PluggableTestRunner.class)
+  public static class PluggableTestRunnerTestClass {
+
+    @Rule public TestAndMethodRule rule = new TestAndMethodRule();
+
+    @Test
+    public void test() {
+      // no-op
+    }
+  }
+
+  @Test
+  public void ruleThatIsBothTestRuleAndMethodRuleIsInvokedOnceOnly() throws Exception {
+    PluggableTestRunner.run(
+        new PluggableTestRunner(PluggableTestRunnerTestClass.class) {
+          @Override
+          protected List<TestMethodProcessor> createTestMethodProcessorList() {
+            return ImmutableList.of();
+          }
+        });
+
+    assertThat(ruleInvocationCount).isEqualTo(1);
+  }
+}