✅ Update tests of ZeroAsByteSerializer.hashCode() (#690)

kotools · Aug 27, 2024 · d946c92 · d946c92
1 parent 7a5d556
commit d946c92
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Showing 2 changed files with 13 additions and 1 deletion.
diff --git a/...Sample/kotlin/org/kotools/types/kotlinx/serialization/ZeroAsByteSerializerCommonSample.kt b/...Sample/kotlin/org/kotools/types/kotlinx/serialization/ZeroAsByteSerializerCommonSample.kt
@@ -45,7 +45,8 @@ internal class ZeroAsByteSerializerCommonSample {
         val serializer = ZeroAsByteSerializer()
         val other = ZeroAsByteSerializer()
         val equality: Boolean = serializer.hashCode() == other.hashCode()
-        assertTrue(equality)
+        val message = "Hash codes of '$serializer' should be equal."
+        assertTrue(equality, message)
     }
 
     // ----------------------- Serialization operations ------------------------

diff --git a/...src/commonTest/kotlin/org/kotools/types/kotlinx/serialization/ZeroAsByteSerializerTest.kt b/...src/commonTest/kotlin/org/kotools/types/kotlinx/serialization/ZeroAsByteSerializerTest.kt
@@ -3,6 +3,7 @@ package org.kotools.types.kotlinx.serialization
 import kotlinx.serialization.encodeToString
 import kotlinx.serialization.json.Json
 import kotools.types.experimental.ExperimentalKotoolsTypesApi
+import kotools.types.internal.hashCodeOf
 import org.kotools.types.internal.InvalidZero
 import kotlin.test.Test
 import kotlin.test.assertEquals
@@ -22,6 +23,16 @@ class ZeroAsByteSerializerTest {
         assertFalse(actual, message)
     }
 
+    @Test
+    fun hashCodeShouldUseToStringMethod() {
+        val serializer = ZeroAsByteSerializer()
+        val actual: Int = serializer.hashCode()
+        val expected: Int = hashCodeOf("$serializer")
+        val message = "Hash code of '$serializer' should be calculated from " +
+                "its string representation."
+        assertEquals(expected, actual, message)
+    }
+
     // ----------------------- Serialization operations ------------------------
 
     @Test