Introduction to Pants Build Tool (#14517)

* Introduction to Pants Build Tool

* Introduction to Pants Build Tool

* Introduction to Pants Build Tool

* Introduction to Pants Build Tool

* Introduction to Pants Build Tool

pants/test/com/baeldung/hellopant/GuavaUnitTest.java

@@ -0,0 +1,30 @@
+package com.baeldung.hellopant;
+
+import static org.junit.Assert.assertEquals;
+
+import com.google.common.base.Charsets;
+import com.google.common.base.Joiner;
+import com.google.common.collect.Lists;
+import com.google.common.io.Resources;
+import java.io.IOException;
+import java.util.List;
+import org.junit.Test;
+
+public class GuavaUnitTest {
+
+    @Test
+    public void whenConvertListToStringAndSkipNull_thenConverted() {
+        final List<String> names = Lists.newArrayList("John", null, "Jane", "Adam", "Tom");
+        final String result = Joiner.on(",").skipNulls().join(names);
+
+        assertEquals(result, "John,Jane,Adam,Tom");
+    }
+
+    @Test
+    public void whenGettingTextFromAResourceFile_thenJoined() throws IOException {
+        String world = Resources.toString(Resources.getResource(GuavaUnitTest.class, "word.txt"), Charsets.UTF_8).strip();
+        String result = Joiner.on(" ").join("Hello", world);
+        assertEquals(result, "Hello from Us");
+    }
+  
+}