Add Tests for GnomeSort (#4315)

EdsTomato · web-flow · commit ac14411b3989 · 2023-08-15T16:39:12.000Z
diff --git a/src/test/java/com/thealgorithms/sorts/GnomeSortTest.java b/src/test/java/com/thealgorithms/sorts/GnomeSortTest.java
@@ -0,0 +1,82 @@
+package com.thealgorithms.sorts;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+import org.junit.jupiter.api.DisplayName;
+import org.junit.jupiter.api.Test;
+
+public class GnomeSortTest {
+
+    private GnomeSort gnomeSort = new GnomeSort();
+
+    @Test
+    @DisplayName("GnomeSort empty Array")
+    public void gnomeSortEmptyArray() {
+        Integer[] inputArray = {};
+        gnomeSort.sort(inputArray);
+        assertThat(inputArray).isEmpty();
+    }
+
+    @Test
+    @DisplayName("GnomeSort single Integer Array")
+    public void singleIntegerArray() {
+        Integer[] inputArray = {4};
+        Integer[] expectedOutput = {4};
+        gnomeSort.sort(inputArray);
+        assertThat(inputArray).isEqualTo(expectedOutput);
+    }
+
+    @Test
+    @DisplayName("GnomeSort non duplicate Integer Array")
+    public void gnomeSortNonDuplicateIntegerArray() {
+        Integer[] inputArray = {6, 3, 87, 99, 27, 4};
+        Integer[] expectedOutput = {3, 4, 6, 27, 87, 99};
+        gnomeSort.sort(inputArray);
+        assertThat(inputArray).isEqualTo(expectedOutput);
+    }
+
+    @Test
+    @DisplayName("GnomeSort Integer Array with duplicates")
+    public void gnomeSortDuplicateIntegerArray() {
+        Integer[] inputArray = {6, 3, 87, 3, 99, 27, 4, 27};
+        Integer[] expectedOutput = {3, 3, 4, 6, 27, 27, 87, 99};
+        gnomeSort.sort(inputArray);
+        assertThat(inputArray).isEqualTo(expectedOutput);
+    }
+
+    @Test
+    @DisplayName("GnomeSort negative Integer Array with duplicates")
+    public void gnomeSortNegativeDuplicateIntegerArray() {
+        Integer[] inputArray = {6, 3, -87, 3, 99, -27, 4, -27};
+        Integer[] expectedOutput = {-87, -27, -27, 3, 3, 4, 6, 99};
+        gnomeSort.sort(inputArray);
+        assertThat(inputArray).isEqualTo(expectedOutput);
+    }
+
+    @Test
+    @DisplayName("GnomeSort single String Array")
+    public void singleSringArray() {
+        String[] inputArray = {"b"};
+        String[] expectedOutput = {"b"};
+        gnomeSort.sort(inputArray);
+        assertThat(inputArray).isEqualTo(expectedOutput);
+    }
+
+    @Test
+    @DisplayName("GnomeSort non duplicate String Array")
+    public void gnomeSortNonDuplicateStringArray() {
+        String[] inputArray = {"He", "A", "bc", "lo", "n", "bcp", "mhp", "d"};
+        String[] expectedOutput = {"A", "He", "bc", "bcp", "d", "lo", "mhp", "n"};
+        gnomeSort.sort(inputArray);
+        assertThat(inputArray).isEqualTo(expectedOutput);
+    }
+
+    @Test
+    @DisplayName("GnomeSort String Array with duplicates")
+    public void gnomeSortDuplicateStringArray() {
+        String[] inputArray = {"He", "A", "bc", "lo", "n", "bcp", "mhp", "bcp"};
+        String[] expectedOutput = {"A", "He", "bc", "bcp", "bcp", "lo", "mhp", "n"};
+        gnomeSort.sort(inputArray);
+        assertThat(inputArray).isEqualTo(expectedOutput);
+    }
+}
