From 22b57081b7fac00138caa958e58b4489a84e4cee Mon Sep 17 00:00:00 2001
From: Sushant <sushant57@gmail.com>
Date: Thu, 14 Feb 2019 23:21:11 +0100
Subject: [PATCH] Add tests for string comparison

---
 .../stringcomparison/StringComparisonTest.kt  | 47 +++++++++++++++++++
 1 file changed, 47 insertions(+)
 create mode 100644 core-kotlin/src/test/kotlin/com/baeldung/stringcomparison/StringComparisonTest.kt

diff --git a/core-kotlin/src/test/kotlin/com/baeldung/stringcomparison/StringComparisonTest.kt b/core-kotlin/src/test/kotlin/com/baeldung/stringcomparison/StringComparisonTest.kt
new file mode 100644
index 0000000000..b8eefdb144
--- /dev/null
+++ b/core-kotlin/src/test/kotlin/com/baeldung/stringcomparison/StringComparisonTest.kt
@@ -0,0 +1,47 @@
+package com.baeldung.stringcomparison
+
+import org.junit.Test
+import kotlin.test.assertFalse
+import kotlin.test.assertTrue
+
+class StringComparisonUnitTest {
+
+	@Test
+	fun compareUsingEqualsOperator() {
+		val first = "kotlin"
+		val second = "kotlin"
+		val firstCapitalized = "KOTLIN"
+		assertTrue { first == second }
+		assertFalse { first == firstCapitalized }
+	}
+
+	@Test
+	fun compareUsingReferencialEqualsOperator() {
+		val first = "kotlin"
+		val second = "kotlin"
+		val firstBuildAgain = buildString { "kotlin" }
+		assertTrue { first === second }
+		assertFalse { first === firstBuildAgain }
+	}
+
+	@Test
+	fun compareUsingEqualsMethod() {
+		val first = "kotlin"
+		val second = "kotlin"
+		val firstCapitalized = "KOTLIN"
+		assertTrue { first.equals(second) }
+		assertFalse { first.equals(firstCapitalized) }
+		assertTrue { first.equals(firstCapitalized, true) }
+	}
+
+	@Test
+	fun compareUsingCompareToMethod() {
+		val first = "kotlin"
+		val second = "kotlin"
+		val firstCapitalized = "KOTLIN"
+		assertTrue { first.compareTo(second) == 0 }
+		assertTrue { first.compareTo(firstCapitalized) == 32 }
+		assertTrue { firstCapitalized.compareTo(first) == -32 }
+		assertTrue { first.compareTo(firstCapitalized, true) == 0 }
+	}
+}
\ No newline at end of file