1 files changed, 69 insertions, 0 deletions
diff --git a/src/test/java/org/apache/commons/lang3/function/MethodInvokersFailableBiFunctionTest.java b/src/test/java/org/apache/commons/lang3/function/MethodInvokersFailableBiFunctionTest.java
new file mode 100644
index 000000000..4b768cb5a
--- /dev/null
+++ b/src/test/java/org/apache/commons/lang3/function/MethodInvokersFailableBiFunctionTest.java
@@ -0,0 +1,69 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You 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 org.apache.commons.lang3.function;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertThrows;
+
+import java.lang.reflect.Method;
+
+import org.apache.commons.lang3.exception.CustomCheckedException;
+import org.apache.commons.lang3.exception.CustomUncheckedException;
+import org.junit.jupiter.api.Test;
+
+/**
+ * Tests {@link MethodInvokers#asFailableBiFunction(Method)}.
+ */
+public class MethodInvokersFailableBiFunctionTest extends MethodFixtures {
+
+    @Test
+    public void testApply1Arg() throws Throwable {
+        // Use a local variable typed to the interface to make sure we compile.
+        final FailableBiFunction<MethodFixtures, String, String[], Throwable> func = MethodInvokers.asFailableBiFunction(getMethodForGetString1ArgChecked());
+        assertEquals(INSTANCE.getString1ArgChecked("A"), func.apply(INSTANCE, "A"));
+    }
+
+    @Test
+    public void testApply1ArgThrowsChecked() throws NoSuchMethodException, SecurityException {
+        // Use a local variable typed to the interface to make sure we compile.
+        final FailableBiFunction<MethodFixtures, String, String[], Throwable> func = MethodInvokers
+            .asFailableBiFunction(getMethodForGetString1ArgThrowsChecked());
+        assertThrows(CustomCheckedException.class, () -> func.apply(INSTANCE, "A"));
+    }
+
+    @Test
+    public void testApply1ArgThrowsUnchecked() throws NoSuchMethodException, SecurityException {
+        // Use a local variable typed to the interface to make sure we compile.
+        final FailableBiFunction<MethodFixtures, String, String[], Throwable> func = MethodInvokers
+            .asFailableBiFunction(getMethodForGetString1ArgThrowsUnchecked());
+        assertThrows(CustomUncheckedException.class, () -> func.apply(INSTANCE, "A"));
+    }
+
+    @Test
+    public void testConstructorForNull() throws SecurityException {
+        assertThrows(NullPointerException.class, () -> MethodInvokers.asFailableBiFunction(null));
+    }
+
+    @Test
+    public void testToString() throws SecurityException, Throwable {
+        // Should not blow up and must return _something_
+        assertFalse(MethodInvokers.asFailableBiFunction(getMethodForGetString1ArgChecked()).toString().isEmpty());
+    }
+
+}