log level configuration tests

Author: cecile75

dd-java-agent/src/test/groovy/datadog/trace/agent/LogLevelTest.groovy

@@ -0,0 +1,90 @@
+package datadog.trace.agent
+
+import datadog.trace.agent.test.IntegrationTestUtils
+
+import jvmbootstraptest.LogLevelChecker
+import spock.lang.Specification
+
+
+class LogLevelTest extends Specification {
+
+
+  /* Priority: datadog.slf4j.simpleLogger.defaultLogLevel > dd.trace.debug > DD_TRACE_DEBUG
+  1: INFO LOGS
+  0: DEBUG Logs
+   */
+
+  def "dd.trace.debug=false"() {
+    expect:
+    IntegrationTestUtils.runOnSeparateJvm(LogLevelChecker.getName()
+      , ["-Ddd.trace.debug=false","-Ddd.jmxfetch.enabled=false","-Ddd.trace.enabled=false"] as String[]
+      , "" as String[]
+      , [:]
+      , true) == 1
+  }
+  def "SLF4J DEBUG &&  dd.trace.debug=false"() {
+    expect:
+    IntegrationTestUtils.runOnSeparateJvm(LogLevelChecker.getName()
+      , ["-Ddd.trace.debug=false","-Ddatadog.slf4j.simpleLogger.defaultLogLevel=debug","-Ddd.jmxfetch.enabled=false","-Ddd.trace.enabled=false"] as String[]
+      , "" as String[]
+      , [:]
+      , true) == 0
+  }
+  def "dd.trace.debug=false && DD_TRACE_DEBUG=true"() {
+    expect:
+    IntegrationTestUtils.runOnSeparateJvm(LogLevelChecker.getName()
+      , ["-Ddd.trace.debug=false","-Ddd.jmxfetch.enabled=false","-Ddd.trace.enabled=false"] as String[]
+      , "" as String[]
+      , ["DD_TRACE_DEBUG": "true"]
+      , true) == 1
+  }
+
+  def "dd.trace.debug=true"() {
+    expect:
+    IntegrationTestUtils.runOnSeparateJvm(LogLevelChecker.getName()
+      , ["-Ddd.trace.debug=true","-Ddd.jmxfetch.enabled=false","-Ddd.trace.enabled=false"] as String[]
+      , "" as String[]
+      , [:]
+      , true) == 0
+  }
+
+
+  def "DD_TRACE_DEBUG=true"() {
+    expect:
+    IntegrationTestUtils.runOnSeparateJvm(LogLevelChecker.getName()
+      , ["-Ddd.jmxfetch.enabled=false","-Ddd.trace.enabled=false"] as String[]
+      , "" as String[]
+      , ["DD_TRACE_DEBUG": "true"]
+      , true) == 0
+  }
+
+  def "dd.trace.debug=true && DD_TRACE_DEBUG=false"() {
+    expect:
+    IntegrationTestUtils.runOnSeparateJvm(LogLevelChecker.getName()
+      , ["-Ddd.trace.debug=true","-Ddd.jmxfetch.enabled=false","-Ddd.trace.enabled=false"] as String[]
+      , "" as String[]
+      , ["DD_TRACE_DEBUG": "false"]
+      , true) == 0
+  }
+
+
+
+  def " datadog.slf4j.simpleLogger.defaultLogLevel=debug && DD_TRACE_DEBUG=false"() {
+    expect:
+    IntegrationTestUtils.runOnSeparateJvm(LogLevelChecker.getName()
+      , ["-Ddatadog.slf4j.simpleLogger.defaultLogLevel=debug","-Ddd.jmxfetch.enabled=false","-Ddd.trace.enabled=false"] as String[]
+      , "" as String[]
+      , ["DD_TRACE_DEBUG": "false"]
+      , true) == 0
+  }
+
+  def " datadog.slf4j.simpleLogger.defaultLogLevel=info && DD_TRACE_DEBUG=true"() {
+    expect:
+    IntegrationTestUtils.runOnSeparateJvm(LogLevelChecker.getName()
+      , ["-Ddatadog.slf4j.simpleLogger.defaultLogLevel=info","-Ddd.jmxfetch.enabled=false","-Ddd.trace.enabled=false"] as String[]
+      , "" as String[]
+      , ["DD_TRACE_DEBUG": "true"]
+      , true) == 1
+  }
+
+}

dd-java-agent/src/test/java/jvmbootstraptest/LogLevelChecker.java

@@ -0,0 +1,13 @@
+package jvmbootstraptest;
+
+public class LogLevelChecker {
+  // returns an exception if logs are not in DEBUG
+  public static void main(final String[] args) throws ClassNotFoundException {
+
+    String str = System.getProperty("datadog.slf4j.simpleLogger.defaultLogLevel");
+
+    if ((str == null) || (str != null && !str.equalsIgnoreCase("debug"))) {
+      throw new RuntimeException("debug mode not set");
+    }
+  }
+}