add java tests

Author: JaskRendix

.github/workflows/java-support-portal-tests.yml

@@ -0,0 +1,38 @@
+name: Support Portal Backend — Java Tests
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+    branches:
+      - main
+  workflow_dispatch:
+
+jobs:
+  build-and-test:
+    name: Maven Test (Java 17)
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v6
+
+      - name: Set up JDK 17
+        uses: actions/setup-java@v4
+        with:
+          java-version: '17'
+          distribution: 'temurin'
+          cache: maven
+
+      - name: Build and Run Tests
+        run: |
+          cd support-portal-backend
+          mvn clean test
+
+      - name: Upload Test Results
+        if: always()
+        uses: actions/upload-artifact@v4
+        with:
+          name: java-test-results
+          path: support-portal-backend/target/surefire-reports/

src/test/java/com/support/controller/TransactionControllerTest.java

@@ -0,0 +1,72 @@
+package com.support.controller;
+
+import com.support.model.Transaction;
+import com.support.repository.TransactionRepository;
+import org.junit.jupiter.api.Test;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.autoconfigure.web.servlet.WebMvcTest;
+import org.springframework.boot.test.mock.mockito.MockBean;
+import org.springframework.http.MediaType;
+import org.springframework.test.web.servlet.MockMvc;
+
+import java.util.Arrays;
+import java.util.Collections;
+
+import static org.mockito.Mockito.when;
+import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.get;
+import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.*;
+
+@WebMvcTest(TransactionController.class)
+public class TransactionControllerTest {
+
+    @Autowired
+    private MockMvc mockMvc;
+
+    @MockBean
+    private TransactionRepository repository;
+
+    @Test
+    public void shouldReturnAllTransactions() throws Exception {
+        // Arrange: Create a mock transaction
+        Transaction t1 = new Transaction();
+        t1.setId(1L);
+        t1.setTransactionRef("REF-123");
+        t1.setStatus("FAILED");
+        t1.setExposureAmount(500.0);
+
+        when(repository.findAll()).thenReturn(Arrays.asList(t1));
+
+        // Act & Assert: Perform the GET request and check the JSON
+        mockMvc.perform(get("/api/support/transactions"))
+                .andExpect(status().isOk())
+                .andExpect(content().contentType(MediaType.APPLICATION_JSON))
+                .andExpect(jsonPath("$[0].transactionRef").value("REF-123"))
+                .andExpect(jsonPath("$[0].status").value("FAILED"))
+                .andExpect(jsonPath("$[0].exposureAmount").value(500.0));
+    }
+
+    @Test
+    public void shouldReturnTransactionsByStatus() throws Exception {
+        // Arrange
+        Transaction t1 = new Transaction();
+        t1.setStatus("PROCESSED");
+       
+        when(repository.findByStatus("PROCESSED")).thenReturn(Arrays.asList(t1));
+
+        // Act & Assert
+        mockMvc.perform(get("/api/support/transactions/status/PROCESSED"))
+                .andExpect(status().isOk())
+                .andExpect(jsonPath("$[0].status").value("PROCESSED"));
+    }
+
+    @Test
+    public void shouldReturnEmptyListWhenNoTransactionsFound() throws Exception {
+        // Arrange
+        when(repository.findByStatus("PENDING")).thenReturn(Collections.emptyList());
+
+        // Act & Assert
+        mockMvc.perform(get("/api/support/transactions/status/PENDING"))
+                .andExpect(status().isOk())
+                .andExpect(content().json("[]"));
+    }
+}