test: add resultModifier test case

Author: codeismyid

__tests__/_errors.mock.ts

@@ -144,4 +144,14 @@ index2.ts:1:1 - Unexpected error.
 ${extendedDiagnostics}
 ${verboseFooter}`;
 
-export default { PRETTY, NOT_PRETTY };
+const MULTILINE_SOURCE = `
+index.ts(1,1): error TS1000: Unexpected error.
+
+1  unexpected_error() as UnexpectedError<
+   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+2    unexpected_error
+ ~~~~~~~~~~~~~~~~~~~~
+3  >;
+ ~~~`.trimStart();
+
+export default { PRETTY, NOT_PRETTY, MULTILINE_SOURCE };

__tests__/src/blueprints/Parser.spec.ts

@@ -6,14 +6,16 @@ describe('blueprint > Parser', () => {
   let matcher: RegExp;
   let matcherKeys: string[] = [];
   let inputModifier: jest.Mock;
+  let resultModifier: jest.Mock;
   let parser: Parser;
 
   beforeEach(() => {
     input = '12';
     matcher = /^(\d)(\d)/g;
     matcherKeys = ['first', 'second'];
     inputModifier = jest.fn((input: string) => input);
-    parser = new Parser(matcher, matcherKeys, inputModifier);
+    resultModifier = jest.fn((result: object) => result);
+    parser = new Parser(matcher, matcherKeys, inputModifier, resultModifier);
   });
 
   describe('instantiation', () => {
@@ -51,5 +53,16 @@ describe('blueprint > Parser', () => {
       expect(inputModifier).toHaveBeenCalledTimes(1);
       expect(inputModifier).toHaveBeenLastCalledWith(input);
     });
+
+    it('should call resultModifier correctly', () => {
+      expect(resultModifier).toHaveBeenCalledTimes(0);
+      parser.parse(input);
+      expect(resultModifier).toHaveBeenCalledTimes(1);
+      expect(resultModifier).toHaveBeenLastCalledWith({
+        _match: input,
+        first: '1',
+        second: '2'
+      });
+    });
   });
 });

__tests__/src/parsers/default-parser.spec.ts

@@ -24,6 +24,32 @@ describe('parsers > defaultParser', () => {
             EXPECTED_RESULTS
           );
         });
+
+        it('should return multiline source correctly', () => {
+          expect(defaultParser.parse(ERROR_MOCKS.MULTILINE_SOURCE)).toEqual([
+            {
+              _match: ERROR_MOCKS.MULTILINE_SOURCE,
+              file: 'index.ts',
+              errorCode: 'TS1000',
+              column: '1',
+              line: '1',
+              message: 'Unexpected error.',
+              source: [
+                '1  unexpected_error() as UnexpectedError<',
+                '   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~',
+                '2    unexpected_error',
+                ' ~~~~~~~~~~~~~~~~~~~~',
+                '3  >;',
+                ' ~~~'
+              ].join('\n'),
+              sourceClean: [
+                'unexpected_error() as UnexpectedError<',
+                '  unexpected_error',
+                '>;'
+              ].join('\n')
+            }
+          ]);
+        });
       });
 
       describe('pretty format disabled', () => {