BITAU-168 Add Bridge SDK test dependencies (#3890)

bridge/README.md

@@ -48,4 +48,23 @@ The following is a list of all third-party dependencies required by the SDK.
 - **kotlinx.serialization**
     - https://github.com/Kotlin/kotlinx.serialization/
     - Purpose: JSON serialization library for Kotlin.
-    - License: Apache 2.0
+    - License: Apache 2.0
+
+### Development Environment Dependencies
+
+The following is a list of additional third-party dependencies used as part of the local development environment. This includes test-related artifacts as well as tools related to code quality and linting. These are not present in the final packaged SDK.
+
+- **JUnit 5**
+  - https://github.com/junit-team/junit5
+  - Purpose: Unit Testing framework for testing SDK code.
+  - License: Eclipse Public License 2.0
+
+- **MockK**
+  - https://github.com/mockk/mockk
+  - Purpose: Kotlin-friendly mocking library.
+  - License: Apache 2.0
+
+- **Turbine**
+  - https://github.com/cashapp/turbine
+  - Purpose: A small testing library for kotlinx.coroutine's Flow.
+  - License: Apache 2.0

bridge/build.gradle.kts

@@ -49,5 +49,17 @@ kotlin {
 }
 
 dependencies {
+    // SDK dependencies:
     implementation(libs.kotlinx.serialization)
+
+    // Test environment dependencies:
+    testImplementation(libs.junit.junit5)
+    testImplementation(libs.mockk.mockk)
+    testImplementation(libs.square.turbine)
+}
+
+tasks {
+    withType<Test> {
+        useJUnitPlatform()
+    }
 }