jest-community · Mar 6, 2020 · Mar 6, 2020
Showing with 539 additions and 413 deletions.

+8 −0 CHANGELOG.md

+1 −1 package.json

+1 −0 src/rules/__tests__/prefer-to-contain.test.ts

+1 −0 src/rules/prefer-to-contain.ts

+528 −412 yarn.lock
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -1,3 +1,11 @@
+## [23.8.2](https://github.com/jest-community/eslint-plugin-jest/compare/v23.8.1...v23.8.2) (2020-03-06)
+
+### Bug Fixes
+
+- **prefer-to-contain:** check that expect argument is defined before use
+  ([#542](https://github.com/jest-community/eslint-plugin-jest/issues/542))
+  ([56f909b](https://github.com/jest-community/eslint-plugin-jest/commit/56f909b326034236953d04b18dab3f64b16a2973))
+
 ## [23.8.1](https://github.com/jest-community/eslint-plugin-jest/compare/v23.8.0...v23.8.1) (2020-02-29)
 
 ### Bug Fixes

diff --git a/package.json b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "eslint-plugin-jest",
-  "version": "23.8.1",
+  "version": "23.8.2",
   "description": "Eslint rules for Jest",
   "repository": "jest-community/eslint-plugin-jest",
   "license": "MIT",

diff --git a/src/rules/__tests__/prefer-to-contain.test.ts b/src/rules/__tests__/prefer-to-contain.test.ts
@@ -5,6 +5,7 @@ const ruleTester = new TSESLint.RuleTester();
 
 ruleTester.run('prefer-to-contain', rule, {
   valid: [
+    'expect().toBe(false);',
     'expect(a).toContain(b);',
     "expect(a.name).toBe('b');",
     'expect(a).toBe(true);',

diff --git a/src/rules/prefer-to-contain.ts b/src/rules/prefer-to-contain.ts
@@ -187,6 +187,7 @@ export default createRule({
 
         if (
           !matcher ||
+          !includesCall ||
           (modifier && modifier.name !== ModifierName.not) ||
           !isBooleanEqualityMatcher(matcher) ||
           !isFixableIncludesCallExpression(includesCall)

diff --git a/yarn.lock b/yarn.lock