test: add tests

lokic · lokic · commit cfb361de4e38 · 2021-09-25T13:59:39.000+08:00
diff --git a/src/test/java/com/github/lokic/javaplus/functional/sneakythrows/SneakyThrowFunctionalTest.java b/src/test/java/com/github/lokic/javaplus/functional/sneakythrows/SneakyThrowFunctionalTest.java
@@ -0,0 +1,27 @@
+package com.github.lokic.javaplus.functional.sneakythrows;
+
+import org.assertj.core.util.Lists;
+import org.junit.Assert;
+import org.junit.Test;
+
+import java.io.IOException;
+import java.util.List;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
+
+public class SneakyThrowFunctionalTest {
+
+    @Test
+    public void cast() {
+        List<String> re = Stream.of(1, 2)
+                .map(SneakyThrowFunctional.cast(this::toStr))
+                .collect(Collectors.toList());
+
+        Assert.assertEquals(Lists.newArrayList("1", "2"), re);
+    }
+
+
+    public String toStr(Integer x) throws IOException {
+        return String.valueOf(x);
+    }
+}
