Migrate to JUnit5 notation

Author: k163377

src/test/kotlin/com/fasterxml/jackson/module/kotlin/test/StrictNullChecksTest.kt

@@ -5,8 +5,8 @@ import com.fasterxml.jackson.module.kotlin.KotlinFeature.StrictNullChecks
 import com.fasterxml.jackson.module.kotlin.MissingKotlinParameterException
 import com.fasterxml.jackson.module.kotlin.kotlinModule
 import com.fasterxml.jackson.module.kotlin.readValue
-import org.hamcrest.CoreMatchers.equalTo
-import org.hamcrest.MatcherAssert.assertThat
+import org.junit.jupiter.api.Assertions.assertArrayEquals
+import org.junit.jupiter.api.Assertions.assertEquals
 import org.junit.jupiter.api.Disabled
 import org.junit.jupiter.api.Test
 import org.junit.jupiter.api.assertThrows
@@ -23,7 +23,7 @@ class StrictNullChecksTest {
     fun testListOfNullableInt() {
         val json = """{"samples":[1, null]}"""
         val stateObj = mapper.readValue<ClassWithListOfNullableInt>(json)
-        assertThat(stateObj.samples, equalTo(listOf(1, null)))
+        assertEquals(listOf(1, null), stateObj.samples)
     }
 
     private data class ClassWithListOfInt(val samples: List<Int>)
@@ -53,7 +53,7 @@ class StrictNullChecksTest {
     fun testArrayOfNullableInt() {
         val json = """{"samples":[1, null]}"""
         val stateObj = mapper.readValue<ClassWithArrayOfNullableInt>(json)
-        assertThat(stateObj.samples, equalTo(arrayOf(1, null)))
+        assertArrayEquals(arrayOf(1, null), stateObj.samples)
     }
 
     private data class ClassWithArrayOfInt(val samples: Array<Int>)
@@ -83,7 +83,7 @@ class StrictNullChecksTest {
     fun testMapOfStringToNullableInt() {
         val json = """{ "samples": { "key": null } }"""
         val stateObj = mapper.readValue<ClassWithMapOfStringToNullableInt>(json)
-        assertThat(stateObj.samples, equalTo(mapOf<String, Int?>("key" to null)))
+        assertEquals(mapOf<String, Int?>("key" to null), stateObj.samples)
     }
 
     private data class ClassWithMapOfStringToInt(val samples: Map<String, Int>)
@@ -113,7 +113,7 @@ class StrictNullChecksTest {
     fun testListOfGeneric() {
         val json = """{"samples":[1, 2]}"""
         val stateObj = mapper.readValue<TestClass<List<Int>>>(json)
-        assertThat(stateObj.samples, equalTo(listOf(1, 2)))
+        assertEquals(listOf(1, 2), stateObj.samples)
     }
 
     @Disabled // this is a hard problem to solve and is currently not addressed
@@ -129,7 +129,7 @@ class StrictNullChecksTest {
     fun testMapOfGeneric() {
         val json = """{ "samples": { "key": 1 } }"""
         val stateObj = mapper.readValue<TestClass<Map<String, Int>>>(json)
-        assertThat(stateObj.samples, equalTo(mapOf("key" to 1)))
+        assertEquals(mapOf("key" to 1), stateObj.samples)
     }
 
     @Disabled // this is a hard problem to solve and is currently not addressed
@@ -145,7 +145,7 @@ class StrictNullChecksTest {
     fun testArrayOfGeneric() {
         val json = """{"samples":[1, 2]}"""
         val stateObj = mapper.readValue<TestClass<Array<Int>>>(json)
-        assertThat(stateObj.samples, equalTo(arrayOf(1, 2)))
+        assertArrayEquals(arrayOf(1, 2), stateObj.samples)
     }
 
     @Disabled // this is a hard problem to solve and is currently not addressed