diff --git a/package.json b/package.json
index 74ebab6e8..5b7ef617f 100644
--- a/package.json
+++ b/package.json
@@ -53,7 +53,7 @@
   "jest": {
     "coverageThreshold": {
       "global": {
-        "branches": 98,
+        "branches": 100,
         "functions": 100,
         "lines": 100,
         "statements": 100
diff --git a/rules/__tests__/prefer-to-have-length.test.js b/rules/__tests__/prefer-to-have-length.test.js
index 0e20f4f26..fe4f34264 100644
--- a/rules/__tests__/prefer-to-have-length.test.js
+++ b/rules/__tests__/prefer-to-have-length.test.js
@@ -10,6 +10,8 @@ ruleTester.run('prefer-to-have-length', rule, {
     'expect(files).toHaveLength(1);',
     "expect(files.name).toBe('file');",
     'expect(result).toBe(true);',
+    `expect(user.getUserName(5)).resolves.toEqual('Paul')`,
+    `expect(user.getUserName(5)).rejects.toEqual('Paul')`,
   ],
 
   invalid: [
diff --git a/rules/__tests__/valid-describe.test.js b/rules/__tests__/valid-describe.test.js
index d96c2d4d5..2db4a2c3d 100644
--- a/rules/__tests__/valid-describe.test.js
+++ b/rules/__tests__/valid-describe.test.js
@@ -61,6 +61,16 @@ ruleTester.run('valid-describe', rule, {
         },
       ],
     },
+    {
+      code: 'describe("foo", "foo2")',
+      errors: [
+        {
+          message: 'Second argument must be function',
+          line: 1,
+          column: 10,
+        },
+      ],
+    },
     {
       code: 'describe("foo", async () => {})',
       errors: [{ message: 'No async describe callback', line: 1, column: 17 }],
diff --git a/rules/__tests__/valid-expect-in-promise.test.js b/rules/__tests__/valid-expect-in-promise.test.js
index d8333dd5d..32e294c61 100644
--- a/rules/__tests__/valid-expect-in-promise.test.js
+++ b/rules/__tests__/valid-expect-in-promise.test.js
@@ -166,6 +166,7 @@ ruleTester.run('valid-expect-in-promise', rule, {
       code: `
          test('invalid return', () => {
            const promise = something().then(value => {
+             const foo = "foo";
              return expect(value).toBe('red');
            });
          });
diff --git a/rules/valid-describe.js b/rules/valid-describe.js
index c01cf4992..a44412c27 100644
--- a/rules/valid-describe.js
+++ b/rules/valid-describe.js
@@ -51,28 +51,32 @@ module.exports = {
               loc: paramsLocation(node.arguments),
             });
           }
-          if (isFunction(callbackFunction)) {
-            if (isAsync(callbackFunction)) {
-              context.report({
-                message: 'No async describe callback',
-                node: callbackFunction,
-              });
-            }
-            if (hasParams(callbackFunction)) {
+          if (!isFunction(callbackFunction)) {
+            return context.report({
+              message: 'Second argument must be function',
+              loc: paramsLocation(node.arguments),
+            });
+          }
+          if (isAsync(callbackFunction)) {
+            context.report({
+              message: 'No async describe callback',
+              node: callbackFunction,
+            });
+          }
+          if (hasParams(callbackFunction)) {
+            context.report({
+              message: 'Unexpected argument(s) in describe callback',
+              loc: paramsLocation(callbackFunction.params),
+            });
+          }
+          callbackFunction.body.body.forEach(node => {
+            if (node.type === 'ReturnStatement') {
               context.report({
-                message: 'Unexpected argument(s) in describe callback',
-                loc: paramsLocation(callbackFunction.params),
+                message: 'Unexpected return statement in describe callback',
+                node,
               });
             }
-            callbackFunction.body.body.forEach(node => {
-              if (node.type === 'ReturnStatement') {
-                context.report({
-                  message: 'Unexpected return statement in describe callback',
-                  node,
-                });
-              }
-            });
-          }
+          });
         }
       },
     };