Failing tests for jsx-child-element-spacing proposal

Author: pfhayes

lib/rules/jsx-child-element-spacing.js

@@ -0,0 +1,19 @@
+'use strict';
+
+// TODO(pfhayes): Just a stub for now to get tests working
+module.exports = {
+  meta: {
+    docs: {},
+    schema: [
+      {
+        type: 'object',
+        properties: {},
+        default: {},
+        additionalProperties: false
+      }
+    ]
+  },
+  create: function (/* context */) {
+    return {};
+  }
+};

tests/lib/rules/jsx-child-element-spacing.js

@@ -0,0 +1,73 @@
+'use strict';
+
+const rule = require('../../../lib/rules/jsx-child-element-spacing');
+const RuleTester = require('eslint').RuleTester;
+const parserOptions = {
+  sourceType: 'module',
+  ecmaFeatures: {
+    jsx: true
+  }
+};
+
+const ERROR_MESSAGE = [{message: 'Ambiguous spacing between child elements.'}];
+
+const ruleTester = new RuleTester({parserOptions});
+ruleTester.run('jsx-child-element-spacing', rule, {
+  valid: [{
+    code: `
+      <App>
+        foo
+        bar
+      </App>
+    `
+  }, {
+    code: `
+      <App>
+        <a>foo</a>
+        <a>bar</a>
+      </App>
+    `
+  }, {
+    code: `
+      <App>
+        foo<a>bar</a>baz
+      </App>
+    `
+  }, {
+    code: `
+      <App>
+        foo
+        {' '}
+        <a>bar</a>
+        {' '}
+        baz
+      </App>
+    `
+  }, {
+    code: `
+      <App>
+        foo{/*
+        */}<a>bar</a>{/*
+        */}baz
+      </App>
+    `
+  }],
+
+  invalid: [{
+    code: `
+      <App>
+        foo
+        <a>bar</a>
+      </App>
+    `,
+    errors: ERROR_MESSAGE
+  }, {
+    code: `
+      <App>
+        <a>bar</a>
+        baz
+      </App>
+    `,
+    errors: ERROR_MESSAGE
+  }]
+});