chore: Migrate FileUtilsTest.kt, NdkConfiguratorUtilsTest.kt and AgpConfiguratorUtilsTest.kt to AssertJ (#45665)

Summary:
Issue: [https://github.com/facebook/react-native/issues/45596](https://github.com/facebook/react-native/issues/45596)

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[INTERNAL] [CHANGED] - Migrated to AssertJ within files FileUtilsTest.kt, NdkConfiguratorUtilsTest.kt and AgpConfiguratorUtilsTest.kt

Pull Request resolved: https://github.com/facebook/react-native/pull/45665

Test Plan: Run `./gradlew -p packages/gradle-plugin test`

Reviewed By: GijsWeterings

Differential Revision: D60276163

Pulled By: cortinico

fbshipit-source-id: c730acafc37606f1db8d53a61fc9443d88bccdfc

packages/gradle-plugin/react-native-gradle-plugin/src/test/kotlin/com/facebook/react/utils/AgpConfiguratorUtilsTest.kt

@@ -8,7 +8,7 @@
 package com.facebook.react.utils
 
 import java.io.File
-import org.junit.Assert.*
+import org.assertj.core.api.Assertions.assertThat
 import org.junit.Rule
 import org.junit.Test
 import org.junit.rules.TemporaryFolder
@@ -23,7 +23,7 @@ class AgpConfiguratorUtilsTest {
     val manifest = File(mainFolder, "AndroidManifest.xml").apply { writeText("") }
 
     val actual = getPackageNameFromManifest(manifest)
-    assertNull(actual)
+    assertThat(actual).isNull()
   }
 
   @Test
@@ -41,7 +41,7 @@ class AgpConfiguratorUtilsTest {
         }
 
     val actual = getPackageNameFromManifest(manifest)
-    assertNull(actual)
+    assertThat(actual).isNull()
   }
 
   @Test
@@ -59,7 +59,7 @@ class AgpConfiguratorUtilsTest {
         }
 
     val actual = getPackageNameFromManifest(manifest)
-    assertNotNull(actual)
-    assertEquals("com.facebook.react", actual)
+    assertThat(actual).isNotNull()
+    assertThat(actual).isEqualTo("com.facebook.react")
   }
 }

packages/gradle-plugin/react-native-gradle-plugin/src/test/kotlin/com/facebook/react/utils/FileUtilsTest.kt

@@ -8,7 +8,7 @@
 package com.facebook.react.utils
 
 import java.io.File
-import org.junit.Assert.*
+import org.assertj.core.api.Assertions.assertThat
 import org.junit.Rule
 import org.junit.Test
 import org.junit.rules.TemporaryFolder
@@ -25,8 +25,8 @@ class FileUtilsTest {
 
     fileToMove.moveTo(destFile)
 
-    assertEquals("42", destFile.readText())
-    assertFalse(fileToMove.exists())
+    assertThat(destFile).hasContent("42")
+    assertThat(fileToMove).doesNotExist()
   }
 
   @Test
@@ -39,7 +39,7 @@ class FileUtilsTest {
 
     subFolder.recreateDir()
 
-    assertTrue(subFolder.exists())
-    assertEquals(0, subFolder.listFiles()?.size)
+    assertThat(subFolder).exists()
+    assertThat(subFolder.listFiles()).hasSize(0)
   }
 }

packages/gradle-plugin/react-native-gradle-plugin/src/test/kotlin/com/facebook/react/utils/NdkConfiguratorUtilsTest.kt

@@ -8,8 +8,7 @@
 package com.facebook.react.utils
 
 import com.facebook.react.utils.NdkConfiguratorUtils.getPackagingOptionsForVariant
-import org.junit.Assert.assertFalse
-import org.junit.Assert.assertTrue
+import org.assertj.core.api.Assertions.assertThat
 import org.junit.Test
 
 class NdkConfiguratorUtilsTest {
@@ -18,29 +17,21 @@ class NdkConfiguratorUtilsTest {
   fun getPackagingOptionsForVariant_withHermesEnabled() {
     val (excludes, includes) = getPackagingOptionsForVariant(hermesEnabled = true)
 
-    assertTrue("**/libjsc.so" in excludes)
-    assertTrue("**/libjscexecutor.so" in excludes)
-    assertFalse("**/libjsc.so" in includes)
-    assertFalse("**/libjscexecutor.so" in includes)
+    assertThat(excludes).containsExactly("**/libjsc.so", "**/libjscexecutor.so")
+    assertThat(includes).doesNotContain("**/libjsc.so", "**/libjscexecutor.so")
 
-    assertTrue("**/libhermes.so" in includes)
-    assertTrue("**/libhermes_executor.so" in includes)
-    assertFalse("**/libhermes.so" in excludes)
-    assertFalse("**/libhermes_executor.so" in excludes)
+    assertThat(includes).containsExactly("**/libhermes.so", "**/libhermes_executor.so")
+    assertThat(excludes).doesNotContain("**/libhermes.so", "**/libhermes_executor.so")
   }
 
   @Test
   fun getPackagingOptionsForVariant_withHermesDisabled() {
     val (excludes, includes) = getPackagingOptionsForVariant(hermesEnabled = false)
 
-    assertTrue("**/libhermes.so" in excludes)
-    assertTrue("**/libhermes_executor.so" in excludes)
-    assertFalse("**/libhermes.so" in includes)
-    assertFalse("**/libhermes_executor.so" in includes)
+    assertThat(excludes).containsExactly("**/libhermes.so", "**/libhermes_executor.so")
+    assertThat(includes).doesNotContain("**/libhermes.so", "**/libhermes_executor.so")
 
-    assertTrue("**/libjsc.so" in includes)
-    assertTrue("**/libjscexecutor.so" in includes)
-    assertFalse("**/libjsc.so" in excludes)
-    assertFalse("**/libjscexecutor.so" in excludes)
+    assertThat(includes).containsExactly("**/libjsc.so", "**/libjscexecutor.so")
+    assertThat(excludes).doesNotContain("**/libjsc.so", "**/libjscexecutor.so")
   }
 }