Convert InterpolatorTypeTest to Kotlin (#37724)

Summary:
Converts InterpolatorTypeTest from Java to Kotlin, as per issue #37708

## Changelog:

[Internal] [Changed] - Convert InterpolatorTypeTest to Kotlin

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Pull Request resolved: #37724

Test Plan:
Tests pass: `./gradlew :packages:react-native:ReactAndroid:test`
Formatted with [KtFmt](https://facebook.github.io/ktfmt/)

Reviewed By: cortinico, yungsters

Differential Revision: D46486141

Pulled By: mdvacca

fbshipit-source-id: bcdfa6497b9170640b4b9f3f20f6afad8fb56bee

packages/react-native/ReactAndroid/src/test/java/com/facebook/react/uimanager/layoutanimation/InterpolatorTypeTest.kt

@@ -0,0 +1,48 @@
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+package com.facebook.react.uimanager.layoutanimation
+
+import java.util.Locale
+import org.assertj.core.api.Assertions.assertThat
+import org.junit.Test
+import org.junit.runner.RunWith
+import org.robolectric.RobolectricTestRunner
+
+@RunWith(RobolectricTestRunner::class)
+class InterpolatorTypeTest {
+  @Test
+  fun testCamelCase() {
+    assertThat(InterpolatorType.fromString("linear")).isEqualTo(InterpolatorType.LINEAR)
+    assertThat(InterpolatorType.fromString("easeIn")).isEqualTo(InterpolatorType.EASE_IN)
+    assertThat(InterpolatorType.fromString("easeOut")).isEqualTo(InterpolatorType.EASE_OUT)
+    assertThat(InterpolatorType.fromString("easeInEaseOut"))
+        .isEqualTo(InterpolatorType.EASE_IN_EASE_OUT)
+    assertThat(InterpolatorType.fromString("spring")).isEqualTo(InterpolatorType.SPRING)
+  }
+
+  @Test
+  fun testOtherCases() {
+    assertThat(InterpolatorType.fromString("EASEIN")).isEqualTo(InterpolatorType.EASE_IN)
+    assertThat(InterpolatorType.fromString("easeout")).isEqualTo(InterpolatorType.EASE_OUT)
+    assertThat(InterpolatorType.fromString("easeineaseout"))
+        .isEqualTo(InterpolatorType.EASE_IN_EASE_OUT)
+  }
+
+  @Test
+  fun testLocales() {
+    Locale.setDefault(Locale.forLanguageTag("tr-TR"))
+    assertThat(InterpolatorType.fromString("easeInEaseOut"))
+        .isEqualTo(InterpolatorType.EASE_IN_EASE_OUT)
+  }
+
+  @Test(expected = IllegalArgumentException::class)
+  @Throws(IllegalArgumentException::class)
+  fun testInvalidInterpolatorTypes() {
+    InterpolatorType.fromString("ease_in_ease_out")
+  }
+}