{"id":18792121,"url":"https://github.com/sterlp/log4j-test-logger","last_synced_at":"2025-10-18T03:17:31.020Z","repository":{"id":64856031,"uuid":"364151575","full_name":"sterlp/log4j-test-logger","owner":"sterlp","description":"Simple in memory log4j2 appender to assert log messages in JUnit tests","archived":false,"fork":false,"pushed_at":"2022-02-02T20:15:53.000Z","size":24,"stargazers_count":1,"open_issues_count":0,"forks_count":1,"subscribers_count":2,"default_branch":"main","last_synced_at":"2025-02-14T09:57:09.839Z","etag":null,"topics":["appender","assert","junit","junit5","log","log4j2","logging","logs","message","test","testing"],"latest_commit_sha":null,"homepage":"","language":"Java","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":"mit","status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/sterlp.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":null,"funding":null,"license":"LICENSE","code_of_conduct":null,"threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":null,"support":null}},"created_at":"2021-05-04T05:42:04.000Z","updated_at":"2024-12-12T14:25:03.000Z","dependencies_parsed_at":"2022-12-19T02:42:14.375Z","dependency_job_id":null,"html_url":"https://github.com/sterlp/log4j-test-logger","commit_stats":null,"previous_names":[],"tags_count":1,"template":false,"template_full_name":null,"repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/sterlp%2Flog4j-test-logger","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/sterlp%2Flog4j-test-logger/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/sterlp%2Flog4j-test-logger/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/sterlp%2Flog4j-test-logger/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/sterlp","download_url":"https://codeload.github.com/sterlp/log4j-test-logger/tar.gz/refs/heads/main","host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":239718329,"owners_count":19685722,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2022-07-04T15:15:14.044Z","host_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub","repositories_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories","repository_names_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repository_names","owners_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners"}},"keywords":["appender","assert","junit","junit5","log","log4j2","logging","logs","message","test","testing"],"created_at":"2024-11-07T21:18:25.244Z","updated_at":"2025-10-04T19:42:46.529Z","avatar_url":"https://github.com/sterlp.png","language":"Java","funding_links":[],"categories":[],"sub_categories":[],"readme":"[![Java CI with Maven](https://github.com/sterlp/log4j-test-logger/actions/workflows/maven.yml/badge.svg)](https://github.com/sterlp/log4j-test-logger/actions/workflows/maven.yml)\n\n# log4j-test-logger\nSimple in memory log4j2 appender to assert logs in JUnit tests.\n\n# Alternative if you use Spring\nhttps://docs.spring.io/spring-boot/docs/current/api/org/springframework/boot/test/system/OutputCaptureExtension.html\n\n# Usage\n\n```java\n    @BeforeEach\n    void before() {\n        TestAppender.clear();\n    }\n    @Test\n    void yourTestMethod() {\n        // GIVEN: log is clean\n        TestAppender.clear();\n\n        // WHEN: I call my fancy method\n        subject.doFancyStuff(argument);\n\n        // THEN: I should have\n        assertFalse(TestAppender.first(Level.INFO, \"Fancy method executed\").isPresent());\n        assertEquals(1, TestAppender.count(Level.INFO));\n        assertEquals(0, TestAppender.count(Level.WARN));     \n        assertEquals(0, TestAppender.count(Level.ERROR));\n    }\n```\n\n# Configuration\n## Dependency Maven pom.xml\n\n```xml\n        \u003cdependency\u003e\n            \u003cgroupId\u003eorg.sterl.test.log4j\u003c/groupId\u003e\n            \u003cartifactId\u003elog4j-test-logger\u003c/artifactId\u003e\n            \u003cversion\u003e0.1.0\u003c/version\u003e\n            \u003cscope\u003etest\u003c/scope\u003e\n        \u003c/dependency\u003e\n```\n\n## Configuration log4j2.xml\n\nIn your `src/test/resources` add or extend the log4j file:\n\n```xml\n\u003c?xml version=\"1.0\" encoding=\"UTF-8\"?\u003e\n\u003cConfiguration status=\"WARN\"\u003e\n    \u003cAppenders\u003e\n        \u003cConsole name=\"Console\" target=\"SYSTEM_OUT\"\u003e\n            \u003cPatternLayout pattern=\"%d{HH:mm:ss.SSS} [%t] %-5level %logger{36} - %msg%n\" /\u003e\n        \u003c/Console\u003e\n\n        \u003c!--  define the test appender --\u003e\n        \u003cTestAppender name=\"TestAppender\" /\u003e\n\n    \u003c/Appenders\u003e\n    \u003cLoggers\u003e\n        \u003cRoot level=\"debug\"\u003e\n            \u003cAppenderRef ref=\"Console\" /\u003e\n\n            \u003c!-- include the appender --\u003e\n            \u003cAppenderRef ref=\"TestAppender\" /\u003e\n\n        \u003c/Root\u003e\n    \u003c/Loggers\u003e\n\u003c/Configuration\u003e\n```\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fsterlp%2Flog4j-test-logger","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fsterlp%2Flog4j-test-logger","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fsterlp%2Flog4j-test-logger/lists"}