EPMRPP-96531 || added unit test for util function

app/src/common/utils/fieldTransformer.test.js

@@ -0,0 +1,73 @@
+import { separateFromIntoNameAndEmail, combineNameAndEmailToFrom } from './fieldTransformer';
+
+describe('separateFromIntoNameAndEmail', () => {
+  it('should split "from" into "fromName" and "fromEmail" when valid format is provided', () => {
+    const input = { from: 'John Doe <[email protected]>' };
+    const result = separateFromIntoNameAndEmail(input);
+    expect(result).toEqual({
+      fromName: 'John Doe',
+      fromEmail: '[email protected]',
+    });
+  });
+
+  it('should set "fromName" and empty "fromEmail" when "from" does not include <email>', () => {
+    const input = { from: 'John Doe' };
+    const result = separateFromIntoNameAndEmail(input);
+    expect(result).toEqual({
+      fromName: 'John Doe',
+      fromEmail: '',
+    });
+  });
+
+  it('should set "fromName" and "fromEmail" to empty strings when "from" is not provided', () => {
+    const input = {};
+    const result = separateFromIntoNameAndEmail(input);
+    expect(result).toEqual({
+      fromName: '',
+      fromEmail: '',
+    });
+  });
+
+  it('should leave unrelated fields in the object unchanged', () => {
+    const input = { from: 'John Doe <[email protected]>', otherField: 'value' };
+    const result = separateFromIntoNameAndEmail(input);
+    expect(result).toEqual({
+      fromName: 'John Doe',
+      fromEmail: '[email protected]',
+      otherField: 'value',
+    });
+  });
+});
+
+describe('combineNameAndEmailToFrom', () => {
+  it('should combine "fromName" and "fromEmail" into "from"', () => {
+    const input = { fromName: 'John Doe', fromEmail: '[email protected]' };
+    const result = combineNameAndEmailToFrom(input);
+    expect(result).toEqual({
+      from: 'John Doe <[email protected]>',
+    });
+  });
+
+  it('should leave unrelated fields in the object unchanged', () => {
+    const input = { fromName: 'John Doe', fromEmail: '[email protected]', otherField: 'value' };
+    const result = combineNameAndEmailToFrom(input);
+    expect(result).toEqual({
+      from: 'John Doe <[email protected]>',
+      otherField: 'value',
+    });
+  });
+
+  it('should not modify the object if "fromName" or "fromEmail" is missing', () => {
+    const input1 = { fromName: 'John Doe' };
+    const input2 = { fromEmail: '[email protected]' };
+    const input3 = {};
+
+    const result1 = combineNameAndEmailToFrom(input1);
+    const result2 = combineNameAndEmailToFrom(input2);
+    const result3 = combineNameAndEmailToFrom(input3);
+
+    expect(result1).toEqual({ fromName: 'John Doe' });
+    expect(result2).toEqual({ fromEmail: '[email protected]' });
+    expect(result3).toEqual({});
+  });
+});