[Jest] validate_style (#805)

* Move and rename

* Run jest-codemods

* Run custom codemods

* Move fixtures

* Manual edits

* Manual edits

* Wrap in describe

* Manual edits

* Move fixture folder back to to test/unit/style-spec

* Move fixtures back to test/unit/style-spec/fixture

Author: birkskyum

src/style-spec/style-spec.ts

@@ -115,6 +115,3 @@ export {
     validate,
     visit
 };
-
-(validate as any).parsed = validate;
-(validate as any).latest = validate;

src/style-spec/validate_spec.test.ts

@@ -0,0 +1,29 @@
+import glob from 'glob';
+import fs from 'fs';
+import path from 'path';
+import validate from '../style-spec/validate_style';
+import reference from './reference/latest';
+
+const UPDATE = !!process.env.UPDATE;
+
+describe('validate_spec', () => {
+    glob.sync('test/unit/style-spec/fixture/*.input.json').forEach((file) => {
+        test(path.basename(file), () => {
+            const outputfile = file.replace('.input', '.output');
+            const style = fs.readFileSync(file);
+            const result = validate(style);
+            if (UPDATE) fs.writeFileSync(outputfile, JSON.stringify(result, null, 2));
+            const expectedOutput = JSON.parse(fs.readFileSync(outputfile).toString());
+            expect(result).toEqual(expectedOutput);
+        });
+    });
+
+    test('errors from validate do not contain line numbers', () => {
+        const fixtures = glob.sync('test/unit/style-spec/fixture/*.input.json');
+        const style = JSON.parse(fs.readFileSync(fixtures[0]).toString());
+
+        const result = validate(style, reference);
+        expect(result[0].line).toBeUndefined();
+    });
+
+});