Add RBAC tests and implementation for solution file management features

- Implemented new RBAC-based logic for solution file operations: upload, download, list, and delete.
- Added integration and RBAC tests for comprehensive solution file management validation.
- Introduced new utilities to support S3 file operations within solutions.

Author: jreynard-code

solution/src/integrationTest/kotlin/com/cosmotech/solution/service/SolutionServiceIntegrationTest.kt

@@ -28,12 +28,14 @@ import io.mockk.every
 import io.mockk.junit5.MockKExtension
 import io.mockk.mockk
 import io.mockk.mockkStatic
+import java.io.FileInputStream
 import java.time.Instant
 import java.util.*
 import kotlin.test.assertEquals
 import kotlin.test.assertFalse
 import kotlin.test.assertNotNull
 import kotlin.test.assertTrue
+import org.apache.commons.io.IOUtils
 import org.junit.jupiter.api.BeforeEach
 import org.junit.jupiter.api.DynamicTest
 import org.junit.jupiter.api.Test
@@ -44,10 +46,13 @@ import org.junit.runner.RunWith
 import org.slf4j.LoggerFactory
 import org.springframework.beans.factory.annotation.Autowired
 import org.springframework.boot.test.context.SpringBootTest
+import org.springframework.core.io.ResourceLoader
+import org.springframework.mock.web.MockMultipartFile
 import org.springframework.test.context.ActiveProfiles
 import org.springframework.test.context.junit.jupiter.SpringExtension
 import org.springframework.test.context.junit4.SpringRunner
 import org.springframework.test.util.ReflectionTestUtils
+import software.amazon.awssdk.services.s3.model.NoSuchKeyException
 
 const val CONNECTED_ADMIN_USER = "[email protected]"
 const val CONNECTED_READER_USER = "[email protected]"
@@ -62,10 +67,13 @@ class SolutionServiceIntegrationTest : CsmTestBase() {
 
   private val logger = LoggerFactory.getLogger(SolutionServiceIntegrationTest::class.java)
 
+  val fileName = "test_solution_file.txt"
+
   @Autowired lateinit var rediSearchIndexer: RediSearchIndexer
   @Autowired lateinit var organizationApiService: OrganizationApiServiceInterface
   @Autowired lateinit var solutionApiService: SolutionApiServiceInterface
   @Autowired lateinit var csmPlatformProperties: CsmPlatformProperties
+  @Autowired lateinit var resourceLoader: ResourceLoader
 
   private var containerRegistryService: ContainerRegistryService = mockk(relaxed = true)
   private var startTime: Long = 0
@@ -2122,6 +2130,107 @@ class SolutionServiceIntegrationTest : CsmTestBase() {
     assertEquals("One or several solution items have same id : runTemplates", exception.message)
   }
 
+  @Test
+  fun `test createSolutionFile`() {
+
+    val resourceTestFile = resourceLoader.getResource("classpath:/$fileName").file
+    val input = FileInputStream(resourceTestFile)
+    val multipartFile =
+        MockMultipartFile(
+            "file", resourceTestFile.getName(), "text/plain", IOUtils.toByteArray(input))
+    every { getCurrentAuthenticatedRoles(any()) } returns listOf("Platform.Admin")
+
+    logger.info("should create a solution file")
+    val savedFile =
+        solutionApiService.createSolutionFile(
+            organizationSaved.id, solutionSaved.id, multipartFile, true, null)
+
+    assertEquals(fileName, savedFile.fileName)
+  }
+
+  @Test
+  fun `test getSolutionFile`() {
+    logger.info("should get a solution file")
+    val resourceTestFile = resourceLoader.getResource("classpath:/$fileName").file
+    val input = FileInputStream(resourceTestFile)
+    val expectedFile = FileInputStream(resourceTestFile)
+    val multipartFile =
+        MockMultipartFile(
+            "file", resourceTestFile.getName(), "text/plain", IOUtils.toByteArray(input))
+
+    solutionApiService.createSolutionFile(
+        organizationSaved.id, solutionSaved.id, multipartFile, true, null)
+
+    val fetchedFile =
+        solutionApiService.getSolutionFile(organizationSaved.id, solutionSaved.id, fileName)
+    val expectedText = expectedFile.bufferedReader().use { it.readText() }
+    val retrievedText = fetchedFile.inputStream.bufferedReader().use { it.readText() }
+    assertEquals(expectedText, retrievedText)
+  }
+
+  @Test
+  fun `test listSolutionFiles`() {
+    every { getCurrentAuthenticatedRoles(any()) } returns listOf("Platform.Admin")
+
+    logger.info("should list all solution file")
+    val resourceTestFile = resourceLoader.getResource("classpath:/$fileName").file
+    val input = FileInputStream(resourceTestFile)
+    val multipartFile =
+        MockMultipartFile(
+            "file", resourceTestFile.getName(), "text/plain", IOUtils.toByteArray(input))
+
+    var solutionFiles = solutionApiService.listSolutionFiles(organizationSaved.id, solutionSaved.id)
+    assertTrue(solutionFiles.isEmpty())
+
+    solutionApiService.createSolutionFile(
+        organizationSaved.id, solutionSaved.id, multipartFile, true, null)
+
+    solutionFiles = solutionApiService.listSolutionFiles(organizationSaved.id, solutionSaved.id)
+    assertEquals(1, solutionFiles.size)
+  }
+
+  @Test
+  fun `test deleteSolutionFile`() {
+    logger.info("should delete a solution file")
+    val resourceTestFile = resourceLoader.getResource("classpath:/$fileName").file
+    val input = FileInputStream(resourceTestFile)
+    val multipartFile =
+        MockMultipartFile(
+            "file", resourceTestFile.getName(), "text/plain", IOUtils.toByteArray(input))
+
+    solutionApiService.createSolutionFile(
+        organizationSaved.id, solutionSaved.id, multipartFile, true, null)
+
+    solutionApiService.deleteSolutionFile(organizationSaved.id, solutionSaved.id, fileName)
+
+    val exception =
+        assertThrows<NoSuchKeyException> {
+          solutionApiService.getSolutionFile(organizationSaved.id, solutionSaved.id, fileName)
+        }
+
+    assertEquals("The specified key does not exist.", exception.awsErrorDetails().errorMessage())
+  }
+
+  @Test
+  fun `test deleteSolutionFiles`() {
+    logger.info("should delete all solution files")
+    val resourceTestFile = resourceLoader.getResource("classpath:/$fileName").file
+    val input = FileInputStream(resourceTestFile)
+    val multipartFile =
+        MockMultipartFile(
+            "file", resourceTestFile.getName(), "text/plain", IOUtils.toByteArray(input))
+
+    solutionApiService.createSolutionFile(
+        organizationSaved.id, solutionSaved.id, multipartFile, true, null)
+    solutionApiService.createSolutionFile(
+        organizationSaved.id, solutionSaved.id, multipartFile, true, null)
+
+    solutionApiService.deleteAllS3SolutionObjects(organizationSaved.id, solutionSaved)
+
+    assertEquals(
+        0, solutionApiService.listSolutionFiles(organizationSaved.id, solutionSaved.id).size)
+  }
+
   @Test
   fun `assert timestamps are functional for base CRUD`() {
     solutionSaved = solutionApiService.createSolution(organizationSaved.id, makeSolution())