{"id":54200,"library":"hamcrest","title":"Hamcrest","description":"Core API and libraries of the Hamcrest matcher framework for writing declarative matcher objects in Java tests.","status":"active","version":"3.0","language":"java","source_language":null,"source_url":"https://github.com/hamcrest/JavaHamcrest","tags":["testing","matchers","hamcrest","assertions"],"install":[{"cmd":"<dependency>\n  <groupId>org.hamcrest</groupId>\n  <artifactId>hamcrest</artifactId>\n  <version>3.0</version>\n</dependency>","lang":"xml","label":"Maven"},{"cmd":"implementation 'org.hamcrest:hamcrest:3.0'","lang":"groovy","label":"Gradle"}],"dependencies":[],"imports":[{"symbol":"MatcherAssert","correct":"org.hamcrest.MatcherAssert"}],"quickstart":{"code":"import org.hamcrest.MatcherAssert;\nimport static org.hamcrest.Matchers.*;\n\npublic class Example {\n    public static void main(String[] args) {\n        String result = \"Hello World\";\n        MatcherAssert.assertThat(result, containsString(\"World\"));\n        System.out.println(\"Assertion passed!\");\n    }\n}","lang":"java","description":"Asserts that a string contains a substring using Hamcrest matchers."},"warnings":[{"fix":"Update imports to org.hamcrest.Matchers for Hamcrest 3.x.","message":"Hamcrest 3.x uses org.hamcrest package; older versions used org.hamcrest.core.","severity":"breaking","affected_versions":">=3.0.0"}],"env_vars":null,"search_vec":"'api':3 'assert':22 'core':2 'declar':13 'framework':10 'hamcrest':1,8,21 'java':17 'librari':5 'matcher':9,14,20 'object':15 'test':18,19 'write':12","created_at":"2026-06-15T08:51:19.519555+00:00","updated_at":"2026-06-15T08:51:19.519555+00:00","problems":[],"ecosystem":"maven","meta_description":null,"install_score":null,"quickstart_score":null,"quickstart_tag":null,"pypi_latest":null,"cli_name":null,"cli_version":null,"type":"library","homepage":"http://hamcrest.org/JavaHamcrest/","github":"https://github.com/hamcrest/JavaHamcrest","docs":"https://appdoc.app/artifact/org.hamcrest/hamcrest/","changelog":null,"pypi":null,"npm":null,"openapi_spec":null,"status_page":null,"smithery":null,"categories":["testing"],"base_url":null,"auth_type":null,"provenance":{"verified_status":null,"verified_at":null,"last_verified":"2026-06-15","next_check":"2026-12-12","install_tag":null}}