Verify correct land use group parameters

app/src/api/dataAccess/landUse.ts

@@ -36,3 +36,14 @@ export async function getLandUseOrderFromGroup(groups: string[]): Promise<string
         return 'Mixed Use';
     } else return null;
 }
+
+export async function isLandUseGroupAllowed(group: string): Promise<boolean> {
+    let groupResult = await db.oneOrNone(`
+        SELECT landuse_id
+        FROM reference_tables.buildings_landuse_group
+        WHERE description = $1
+        `, [group]
+    );
+
+    return (groupResult != undefined);
+}

app/src/api/services/__tests__/domainLogic/landUse.test.ts

@@ -1,5 +1,6 @@
 import * as _ from 'lodash';
 
+import { ArgumentError } from '../../../errors/general';
 import { LandUseState, updateLandUse } from '../../domainLogic/landUse';
 
 const testGroupToOrder = {
@@ -9,6 +10,8 @@ const testGroupToOrder = {
     'Offices': 'Industry And Business'
 };
 
+const testAllowedGroups = Object.keys(testGroupToOrder);
+
 jest.mock('../../../dataAccess/landUse', () => ({
     getLandUseOrderFromGroup: jest.fn((groups: string[]) => {
         const orders = _.chain(groups).map(g => testGroupToOrder[g]).uniq().value();
@@ -19,6 +22,9 @@ jest.mock('../../../dataAccess/landUse', () => ({
         else result = 'Mixed Use';
         
         return Promise.resolve(result);
+    }),
+    isLandUseGroupAllowed: jest.fn((group: string) => {
+        return testAllowedGroups.includes(group);
     })
 }));
 
@@ -94,4 +100,27 @@ describe('updateLandUse()', () => {
         }
     );
 
+    it.each([
+        [['Blah'], "'Blah' is not a valid Land Use Group"],
+        [['Agriculture', 'Zonk'], "'Zonk' is not a valid Land Use Group"],
+        [['Zonk', 'Blah'], "'Zonk' is not a valid Land Use Group"]
+    ])('Should throw ArgumentError when invalid land use group supplied', async (groups: string[], message: string) => {
+        const resultPromise = updateLandUse({landUseGroup: [], landUseOrder: null}, { landUseGroup: groups});
+
+        await expect(resultPromise).rejects.toBeInstanceOf(ArgumentError);
+        await expect(resultPromise).rejects.toHaveProperty('argumentName', 'landUseUpdate');
+        await expect(resultPromise).rejects.toHaveProperty('message', message);
+    });
+
+    it('Should throw ArgumentError when duplicate land use groups supplied', async () => {
+        const resultPromise = updateLandUse(
+            {landUseGroup: [], landUseOrder: null},
+            { landUseGroup: ['Agriculture', 'Agriculture']}
+        );
+
+        await expect(resultPromise).rejects.toBeInstanceOf(ArgumentError);
+        await expect(resultPromise).rejects.toHaveProperty('argumentName', 'landUseUpdate');
+        await expect(resultPromise).rejects.toHaveProperty('message', 'Cannot supply duplicate Land Use Groups');
+    });
+
 });

app/src/api/services/domainLogic/landUse.ts

@@ -1,6 +1,7 @@
 import _ from 'lodash';
 
-import { getLandUseOrderFromGroup } from '../../dataAccess/landUse';
+import * as landUseDataAccess from '../../dataAccess/landUse';
+import { ArgumentError } from '../../errors/general';
 
 export interface LandUseState {
     landUseGroup: string[];
@@ -9,10 +10,26 @@ export interface LandUseState {
 
 export async function updateLandUse(landUse: LandUseState, landUseUpdate: Partial<LandUseState>): Promise<LandUseState> {
     const landUseGroupUpdate = landUseUpdate.landUseGroup;
-    const landUseOrderUpdate = await getLandUseOrderFromGroup(landUseGroupUpdate);
+
+    for(let group of landUseGroupUpdate) {
+        const isGroupValid = await landUseDataAccess.isLandUseGroupAllowed(group);
+        if(!isGroupValid) {
+            throw new ArgumentError(`'${group}' is not a valid Land Use Group`, 'landUseUpdate');
+        }
+    }
+
+    if(hasDuplicates(landUseGroupUpdate)) {
+        throw new ArgumentError('Cannot supply duplicate Land Use Groups', 'landUseUpdate');
+    }
+
+    const landUseOrderUpdate = await landUseDataAccess.getLandUseOrderFromGroup(landUseGroupUpdate);
 
     return {
         landUseGroup: landUseGroupUpdate,
         landUseOrder: landUseOrderUpdate
     };
 }
+
+function hasDuplicates(array: any[]) {
+    return (new Set(array).size !== array.length);
+}

app/src/api/services/domainLogic/processBuildingUpdate.ts

@@ -1,6 +1,7 @@
 import * as _ from 'lodash';
 
 import { hasAnyOwnProperty } from '../../../helpers';
+import { ArgumentError } from '../../errors/general';
 import { getCurrentBuildingDataById } from '../building';
 
 import { updateLandUse } from './landUse';
@@ -16,17 +17,24 @@ export async function processBuildingUpdate(buildingId: number, buildingUpdate:
 async function processCurrentLandUseClassifications(buildingId: number, buildingUpdate: any): Promise<any> {
     const currentBuildingData = await getCurrentBuildingDataById(buildingId);
 
-    const currentLandUseUpdate = await updateLandUse(
-        {
-            landUseGroup: currentBuildingData.current_landuse_group,
-            landUseOrder: currentBuildingData.current_landuse_order
-        }, {
-            landUseGroup: buildingUpdate.current_landuse_group
-        }
-    );
+    try {
+        const currentLandUseUpdate = await updateLandUse(
+            {
+                landUseGroup: currentBuildingData.current_landuse_group,
+                landUseOrder: currentBuildingData.current_landuse_order
+            }, {
+                landUseGroup: buildingUpdate.current_landuse_group
+            }
+        );
 
-    return Object.assign({}, buildingUpdate, {
-        current_landuse_group: currentLandUseUpdate.landUseGroup,
-        current_landuse_order: currentLandUseUpdate.landUseOrder,
-    });
+        return Object.assign({}, buildingUpdate, {
+            current_landuse_group: currentLandUseUpdate.landUseGroup,
+            current_landuse_order: currentLandUseUpdate.landUseOrder,
+        });
+    } catch (error) {
+        if(error instanceof ArgumentError && error.argumentName === 'landUseUpdate') {
+            error.argumentName = 'buildingUpdate';
+        }
+        throw error;
+    }
 }