1 files changed, 92 insertions, 0 deletions
diff --git a/javatests/dagger/internal/codegen/HjarTest.java b/javatests/dagger/internal/codegen/HjarTest.java
new file mode 100644
index 000000000..e8f67b725
--- /dev/null
+++ b/javatests/dagger/internal/codegen/HjarTest.java
@@ -0,0 +1,92 @@
+/*
+ * Copyright (C) 2014 The Dagger Authors.
+ *
+ * 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 dagger.internal.codegen;
+
+import androidx.room.compiler.processing.util.Source;
+import com.google.common.collect.ImmutableMap;
+import dagger.testing.compile.CompilerTests;
+import dagger.testing.compile.CompilerTests.DaggerCompiler;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.junit.runners.JUnit4;
+
+/** Tests compilation with the {@code experimental_turbine_hjar} flag enabled. */
+@RunWith(JUnit4.class)
+public class HjarTest {
+  /** Returns a {@link DaggerCompiler} with hjar generation enabled. */
+  private static DaggerCompiler daggerCompiler(Source... sources) {
+    return CompilerTests.daggerCompiler(sources)
+        .withProcessingOptions(ImmutableMap.of("experimental_turbine_hjar", ""));
+  }
+
+  @Test
+  public void componentTest() {
+    Source component =
+        CompilerTests.javaSource(
+            "test.MyComponent",
+            "package test;",
+            "",
+            "import dagger.Component;",
+            "",
+            "@Component",
+            "interface MyComponent {",
+            "  String getString();",
+            "  int getInt();",
+            "  void inject(String str);",
+            "}");
+    daggerCompiler(component).compile(subject -> subject.hasErrorCount(0));
+  }
+
+  @Test
+  public void moduleTest() {
+    Source module =
+        CompilerTests.javaSource(
+            "test.MyModule",
+            "package test;",
+            "",
+            "import dagger.Module;",
+            "import dagger.Provides;",
+            "",
+            "@Module",
+            "interface MyModule {",
+            "  @Provides static int provideInt() { return 0; }",
+            "  @Provides static String provideString() { return null; }",
+            "  @Provides static String[] provideStringArray() { return null; }",
+            "  @Provides static int[] provideIntArray() { return null; }",
+            "  @Provides static boolean provideBoolean() { return false; }",
+            "}");
+    daggerCompiler(module).compile(subject -> subject.hasErrorCount(0));
+  }
+
+  @Test
+  public void producerModuleTest() {
+    Source module =
+        CompilerTests.javaSource(
+            "test.MyModule",
+            "package test;",
+            "",
+            "import com.google.common.util.concurrent.ListenableFuture;",
+            "import dagger.producers.ProducerModule;",
+            "import dagger.producers.Produces;",
+            "",
+            "@ProducerModule",
+            "interface MyModule {",
+            "  @Produces static ListenableFuture<String> produceString() { return null; }",
+            "}");
+    daggerCompiler(module).compile(subject -> subject.hasErrorCount(0));
+  }
+}