Attained 100% test coverage

Author: Devorein

jest.config.js

@@ -4,13 +4,18 @@ module.exports = async () => {
     testTimeout: 30000,
     testEnvironment: 'node',
     verbose: true,
-    testPathIgnorePatterns: ['<rootDir>/node_modules', '<rootDir>/dist'],
+    testPathIgnorePatterns: [
+      '<rootDir>/node_modules',
+      '<rootDir>/dist',
+      '<rootDir>/src/utils/commitFile.ts'
+    ],
     modulePathIgnorePatterns: ['<rootDir>/dist'],
     roots: ['<rootDir>/tests'],
     testMatch: ['<rootDir>/tests/**/*.test.ts'],
     transform: {
       '^.+\\.(ts)$': 'ts-jest'
     },
+    collectCoverageFrom: ['src/utils/{!(commitFile),}.ts', 'src/action.ts'],
     collectCoverage: true,
     coverageDirectory: './coverage',
     coverageThreshold: {

src/utils/populateCategoriesMapItems.ts

@@ -7,7 +7,9 @@ export const populateCategoriesMapItems = (
   categories_map: ICategoryMap
 ) => {
   rows.forEach((row) => {
-    const category = row.properties[category_schema_id][0][0];
+    const category =
+      row.properties[category_schema_id] &&
+      row.properties[category_schema_id][0][0];
     if (!category) throw new Error('Each row must have a category value');
     const category_value = categories_map.get(category);
     category_value!.items.push(row.properties);

tests/utils/populateCategoriesMapItems.test.ts

@@ -0,0 +1,61 @@
+import { IPage } from '@nishans/types';
+import { ICategoryMap } from '../../src/types';
+import { populateCategoriesMapItems } from '../../src/utils/populateCategoriesMapItems';
+
+it(`Should work`, () => {
+  const category_map: ICategoryMap = new Map([
+    [
+      'Library',
+      {
+        color: 'teal',
+        items: []
+      }
+    ]
+  ]);
+  const rows: IPage[] = [
+    {
+      properties: {
+        title: [['React']],
+        category: [['Library']]
+      }
+    } as any
+  ];
+  populateCategoriesMapItems(rows, 'category', category_map);
+
+  expect(Array.from(category_map.entries())).toStrictEqual([
+    [
+      'Library',
+      {
+        color: 'teal',
+        items: [
+          {
+            title: [['React']],
+            category: [['Library']]
+          }
+        ]
+      }
+    ]
+  ]);
+});
+
+it(`Should fail if category not provided`, () => {
+  const category_map: ICategoryMap = new Map([
+    [
+      'Library',
+      {
+        color: 'teal',
+        items: []
+      }
+    ]
+  ]);
+  const rows: IPage[] = [
+    {
+      properties: {
+        title: [['React']]
+      }
+    } as any
+  ];
+  expect(() =>
+    populateCategoriesMapItems(rows, 'category', category_map)
+  ).toThrow();
+});