diff --git a/SectionSortTest b/SectionSortTest
new file mode 100644
index 00000000..0c2953b3
--- /dev/null
+++ b/SectionSortTest
@@ -0,0 +1,52 @@
+/*
+ * Copyright (C) 2022 Thoai
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+import static com.rampatra.sorting.SelectionSort.selectionSort;
+import org.junit.jupiter.api.Test;
+import static org.junit.jupiter.api.Assertions.*;
+
+/**
+ *
+ * @author Thoai
+ */
+public class SelectionSortTest {
+    
+    @Test
+	public void tesInsertIntoSorted() {
+		int[] inputArr = new int[] {1,3,5};
+		int[] inputResult = new int[] {1,3,5};
+		selectionSort(inputArr);
+		assertArrayEquals(inputResult, inputArr);
+	}
+
+	@Test
+	public void tesInsertIntoSorted2() {
+		int[] inputArr = new int[] {5,3,1};
+		int[] inputResult = new int[] {1,3,5};
+		selectionSort(inputArr);
+		assertArrayEquals(inputResult, inputArr);
+	}
+
+	@Test
+	public void tesInsertIntoSorted3() {
+		int[] inputArr = new int[] {4,5,3,2};
+		int[] inputResult = new int[] {2,3,4,5};
+		selectionSort(inputArr);
+		assertArrayEquals(inputResult, inputArr);
+	}
+    
+}