1 files changed, 72 insertions, 0 deletions
diff --git a/AlgoDesignAndTechniqueEdxJava/tests/LargestNumberTest.java b/AlgoDesignAndTechniqueEdxJava/tests/LargestNumberTest.java
new file mode 100644
index 0000000..285d502
--- /dev/null
+++ b/AlgoDesignAndTechniqueEdxJava/tests/LargestNumberTest.java
@@ -0,0 +1,72 @@
+import static org.junit.jupiter.api.Assertions.*;
+
+import org.junit.jupiter.api.Test;
+
+class LargestNumberTest {
+
+	@Test
+	void test1() {
+		String[] numbers = {"9", "4", "6", "1", "9"};
+		assertEquals("99641", LargestNumber.getLargestNumber(numbers));
+	}
+
+	@Test
+	void test2() {
+		String[] numbers = {"21", "2"};
+		assertEquals("221", LargestNumber.getLargestNumber(numbers));
+	}
+
+	@Test
+	void test3() {
+		String[] numbers = {"23", "39", "92"};
+		assertEquals("923923", LargestNumber.getLargestNumber(numbers));
+	}
+
+	@Test
+	void test4() {
+		String[] numbers = {"23", "39", "92"};
+		assertEquals("923923", LargestNumber.getLargestNumber(numbers));
+	}
+
+	@Test
+	void test5() {
+		String[] numbers = {"23", "2"};
+		assertEquals("232", LargestNumber.getLargestNumber(numbers));
+	}
+
+	@Test
+	void testCompareLeadingDigit() {
+		assertTrue(LargestNumber.compareLeadingDigit("2", "21"));
+	}
+
+	@Test
+	void testCompareLeadingDigit1() {
+		assertFalse(LargestNumber.compareLeadingDigit("20", "21"));
+	}
+
+	@Test
+	void testCompareLeadingDigit2() {
+		assertFalse(LargestNumber.compareLeadingDigit("321", "322"));
+	}
+
+	@Test
+	void testCompareLeadingDigit3() {
+		assertFalse(LargestNumber.compareLeadingDigit("321", "32"));
+	}
+
+	@Test
+	void testCompareLeadingDigit4() {
+		assertFalse(LargestNumber.compareLeadingDigit("10", "1"));
+	}
+
+	@Test
+	void testCompareLeadingDigit5() {
+		assertTrue(LargestNumber.compareLeadingDigit("6", "10"));
+	}
+
+	@Test
+	void testCompareLeadingDigit6() {
+		assertTrue(LargestNumber.compareLeadingDigit("23", "2"));
+	}
+	
+}