diff --git a/guava/src/test/java/com/baeldung/guava/ThrowablesUnitTest.java b/guava/src/test/java/com/baeldung/guava/ThrowablesUnitTest.java new file mode 100644 index 0000000000..7d33b38a0e --- /dev/null +++ b/guava/src/test/java/com/baeldung/guava/ThrowablesUnitTest.java @@ -0,0 +1,44 @@ +package com.baeldung.guava; + +import com.google.common.base.Throwables; +import org.junit.Test; + +import java.util.function.Supplier; + +public class ThrowablesUnitTest { + + @Test(expected = RuntimeException.class) + public void whenThrowable_shouldWrapItInRuntimeException() throws Exception { + try { + throwThrowable(Throwable::new); + } catch (Throwable t) { + Throwables.propagateIfPossible(t, Exception.class); + throw new RuntimeException(t); + } + } + + @Test(expected = Error.class) + public void whenError_shouldPropagateAsIs() throws Exception { + try { + throwThrowable(Error::new); + } catch (Throwable t) { + Throwables.propagateIfPossible(t, Exception.class); + throw new RuntimeException(t); + } + } + + @Test(expected = Exception.class) + public void whenException_shouldPropagateAsIs() throws Exception { + try { + throwThrowable(Exception::new); + } catch (Throwable t) { + Throwables.propagateIfPossible(t, Exception.class); + throw new RuntimeException(t); + } + } + + private void throwThrowable(Supplier exceptionSupplier) throws Throwable { + throw exceptionSupplier.get(); + } + +}