1 files changed, 213 insertions, 0 deletions
diff --git a/opendc-web/opendc-web-server/src/test/java/org/opendc/web/server/service/UserAccountingServiceTest.java b/opendc-web/opendc-web-server/src/test/java/org/opendc/web/server/service/UserAccountingServiceTest.java
new file mode 100644
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--- /dev/null
+++ b/opendc-web/opendc-web-server/src/test/java/org/opendc/web/server/service/UserAccountingServiceTest.java
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+/*
+ * Copyright (c) 2023 AtLarge Research
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+package org.opendc.web.server.service;
+
+import static org.junit.jupiter.api.Assertions.assertAll;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertThrows;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.ArgumentMatchers.anyInt;
+import static org.mockito.ArgumentMatchers.anyString;
+
+import io.quarkus.panache.mock.PanacheMock;
+import io.quarkus.test.junit.QuarkusTest;
+import java.time.Duration;
+import java.time.LocalDate;
+import javax.persistence.EntityExistsException;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.mockito.Mockito;
+import org.opendc.web.server.model.UserAccounting;
+
+/**
+ * Test suite for the {@link UserAccountingService}.
+ */
+@QuarkusTest
+public class UserAccountingServiceTest {
+    /**
+     * The {@link UserAccountingService} instance under test.
+     */
+    private UserAccountingService service;
+
+    /**
+     * The user id to test with
+     */
+    private final String userId = "test";
+
+    @BeforeEach
+    public void setUp() {
+        PanacheMock.mock(UserAccounting.class);
+        service = new UserAccountingService(Duration.ofHours(1));
+    }
+
+    @Test
+    public void testGetUserDoesNotExist() {
+        Mockito.when(UserAccounting.findByUser(userId)).thenReturn(null);
+
+        var accounting = service.getAccounting(userId);
+
+        assertTrue(accounting.getPeriodEnd().isAfter(LocalDate.now()));
+        assertEquals(0, accounting.getSimulationTime());
+    }
+
+    @Test
+    public void testGetUserDoesExist() {
+        var now = LocalDate.now();
+        var periodEnd = now.plusMonths(1);
+
+        var mockAccounting = new UserAccounting(userId, periodEnd, 3600);
+        mockAccounting.simulationTime = 32;
+
+        Mockito.when(UserAccounting.findByUser(userId)).thenReturn(mockAccounting);
+
+        var accounting = service.getAccounting(userId);
+
+        assertAll(
+                () -> assertEquals(periodEnd, accounting.getPeriodEnd()),
+                () -> assertEquals(32, accounting.getSimulationTime()),
+                () -> assertEquals(3600, accounting.getSimulationTimeBudget()));
+    }
+
+    @Test
+    public void testHasBudgetUserDoesNotExist() {
+        Mockito.when(UserAccounting.findByUser(userId)).thenReturn(null);
+
+        assertTrue(service.hasSimulationBudget(userId));
+    }
+
+    @Test
+    public void testHasBudget() {
+        var periodEnd = LocalDate.now().plusMonths(2);
+
+        var mockAccounting = new UserAccounting(userId, periodEnd, 3600);
+        Mockito.when(UserAccounting.findByUser(userId)).thenReturn(mockAccounting);
+
+        assertTrue(service.hasSimulationBudget(userId));
+    }
+
+    @Test
+    public void testHasBudgetExceededButPeriodExpired() {
+        var periodEnd = LocalDate.now().minusMonths(2);
+
+        var mockAccounting = new UserAccounting(userId, periodEnd, 3600);
+        mockAccounting.simulationTime = 3900;
+        Mockito.when(UserAccounting.findByUser(userId)).thenReturn(mockAccounting);
+
+        assertTrue(service.hasSimulationBudget(userId));
+    }
+
+    @Test
+    public void testHasBudgetPeriodExpired() {
+        var periodEnd = LocalDate.now().minusMonths(2);
+
+        var mockAccounting = new UserAccounting(userId, periodEnd, 3600);
+        Mockito.when(UserAccounting.findByUser(userId)).thenReturn(mockAccounting);
+
+        assertTrue(service.hasSimulationBudget(userId));
+    }
+
+    @Test
+    public void testHasBudgetExceeded() {
+        var periodEnd = LocalDate.now().plusMonths(1);
+
+        var mockAccounting = new UserAccounting(userId, periodEnd, 3600);
+        mockAccounting.simulationTime = 3900;
+        Mockito.when(UserAccounting.findByUser(userId)).thenReturn(mockAccounting);
+
+        assertFalse(service.hasSimulationBudget(userId));
+    }
+
+    @Test
+    public void testConsumeBudgetNewUser() {
+        Mockito.when(UserAccounting.findByUser(userId)).thenReturn(null);
+        Mockito.when(UserAccounting.create(anyString(), any(), anyInt(), anyInt()))
+                .thenAnswer((i) -> {
+                    var accounting = new UserAccounting(i.getArgument(0), i.getArgument(1), i.getArgument(2));
+                    accounting.simulationTime = i.getArgument(3);
+                    return accounting;
+                });
+
+        assertFalse(service.consumeSimulationBudget(userId, 10));
+    }
+
+    @Test
+    public void testConsumeBudgetNewUserExceeded() {
+        Mockito.when(UserAccounting.findByUser(userId)).thenReturn(null);
+        Mockito.when(UserAccounting.create(anyString(), any(), anyInt(), anyInt()))
+                .thenAnswer((i) -> {
+                    var accounting = new UserAccounting(i.getArgument(0), i.getArgument(1), i.getArgument(2));
+                    accounting.simulationTime = i.getArgument(3);
+                    return accounting;
+                });
+
+        assertTrue(service.consumeSimulationBudget(userId, 4000));
+    }
+
+    @Test
+    public void testConsumeBudgetNewUserConflict() {
+        var periodEnd = LocalDate.now().plusMonths(1);
+        var accountingMock = Mockito.spy(new UserAccounting(userId, periodEnd, 3600));
+
+        Mockito.when(UserAccounting.findByUser(userId)).thenReturn(null).thenReturn(accountingMock);
+        Mockito.when(UserAccounting.create(anyString(), any(), anyInt(), anyInt()))
+                .thenThrow(new EntityExistsException());
+        Mockito.when(accountingMock.consumeBudget(anyInt())).thenAnswer((i) -> {
+            accountingMock.simulationTime += i.<Integer>getArgument(0);
+            return true;
+        });
+
+        assertFalse(service.consumeSimulationBudget(userId, 10));
+    }
+
+    @Test
+    public void testConsumeBudgetResetSuccess() {
+        var periodEnd = LocalDate.now().minusMonths(2);
+        var accountingMock = Mockito.spy(new UserAccounting(userId, periodEnd, 3600));
+        accountingMock.simulationTime = 3900;
+
+        Mockito.when(UserAccounting.findByUser(userId)).thenReturn(accountingMock);
+        Mockito.when(accountingMock.resetBudget(any(), anyInt())).thenAnswer((i) -> {
+            accountingMock.periodEnd = i.getArgument(0);
+            accountingMock.simulationTime += i.<Integer>getArgument(1);
+            return true;
+        });
+
+        assertTrue(service.consumeSimulationBudget(userId, 4000));
+    }
+
+    @Test
+    public void testInfiniteConflict() {
+        var periodEnd = LocalDate.now().plusMonths(1);
+        var accountingMock = Mockito.spy(new UserAccounting(userId, periodEnd, 3600));
+
+        Mockito.when(UserAccounting.findByUser(userId)).thenReturn(accountingMock);
+        Mockito.when(accountingMock.consumeBudget(anyInt())).thenAnswer((i) -> {
+            accountingMock.simulationTime += i.<Integer>getArgument(0);
+            return false;
+        });
+
+        assertThrows(IllegalStateException.class, () -> service.consumeSimulationBudget(userId, 10));
+    }
+}