diff --git a/test/src/test/groovy/hudson/cli/BuildCommandTest.groovy b/test/src/test/groovy/hudson/cli/BuildCommandTest.groovy
index 3c892fdb8a9c886c10c30eea9ea795c44319c3dc..6593d04e85e2635ed69a2c02188413b96f8eb0be 100644
--- a/test/src/test/groovy/hudson/cli/BuildCommandTest.groovy
+++ b/test/src/test/groovy/hudson/cli/BuildCommandTest.groovy
@@ -141,7 +141,7 @@ public class BuildCommandTest {
     }
 
     @Test void consoleOutput() {
-        Assume.assumeFalse("Started test0 #1", "https://jenkins.ci.cloudbees.com/job/core/job/jenkins_main_trunk/".equals(System.getenv("JOB_URL")))
+        Assume.assumeFalse("Started test0 #1", System.getenv("JOB_URL") != null);
         def p = j.createFreeStyleProject()
         def cli = new CLI(j.URL)
         try {
@@ -156,7 +156,7 @@ public class BuildCommandTest {
     }
 
     @Test void consoleOutputWhenBuildSchedulingRefused() {
-        Assume.assumeFalse("Started test0 #1", "https://jenkins.ci.cloudbees.com/job/core/job/jenkins_main_trunk/".equals(System.getenv("JOB_URL")))
+        Assume.assumeFalse("Started test0 #1", System.getenv("JOB_URL") != null);
         def p = j.createFreeStyleProject()
         def cli = new CLI(j.URL)
         try {
diff --git a/test/src/test/groovy/hudson/matrix/MatrixProjectTest.groovy b/test/src/test/groovy/hudson/matrix/MatrixProjectTest.groovy
index f55904a354521b0a3a5d4e1ff1da2858a1bca1b9..f562ba6caed6dbf4debfbbe46adb8da8cdb46123 100644
--- a/test/src/test/groovy/hudson/matrix/MatrixProjectTest.groovy
+++ b/test/src/test/groovy/hudson/matrix/MatrixProjectTest.groovy
@@ -110,7 +110,7 @@ public class MatrixProjectTest {
      */
     @Test
     public void testBuildAxisInMaven() throws Exception {
-        Assume.assumeFalse("Not a v4.0.0 POM. for project org.jvnet.maven-antrun-extended-plugin:maven-antrun-extended-plugin at /home/jenkins/.m2/repository/org/jvnet/maven-antrun-extended-plugin/maven-antrun-extended-plugin/1.40/maven-antrun-extended-plugin-1.40.pom", "https://jenkins.ci.cloudbees.com/job/core/job/jenkins_main_trunk/".equals(System.getenv("JOB_URL")));
+        Assume.assumeFalse("Not a v4.0.0 POM. for project org.jvnet.maven-antrun-extended-plugin:maven-antrun-extended-plugin at /home/jenkins/.m2/repository/org/jvnet/maven-antrun-extended-plugin/maven-antrun-extended-plugin/1.40/maven-antrun-extended-plugin-1.40.pom", System.getenv("JOB_URL") != null);
         MatrixProject p = createMatrixProject();
         Maven.MavenInstallation maven = j.configureDefaultMaven();
         p.getBuildersList().add(new Maven('-Dprop=${db} validate',maven.getName()));
diff --git a/test/src/test/groovy/hudson/model/UpdateCenter2Test.groovy b/test/src/test/groovy/hudson/model/UpdateCenter2Test.groovy
index 9e994a88eb6176cd6e6d2f7c624342910c411fc3..1d121b18645bbfae71b46555fed7f81dad1e15ca 100644
--- a/test/src/test/groovy/hudson/model/UpdateCenter2Test.groovy
+++ b/test/src/test/groovy/hudson/model/UpdateCenter2Test.groovy
@@ -44,7 +44,7 @@ public class UpdateCenter2Test {
      * Makes sure a plugin installs fine.
      */
     @Test void install() {
-        Assume.assumeFalse("SocketTimeoutException from goTo due to GET http://localhost:…/update-center.json?…", "https://jenkins.ci.cloudbees.com/job/core/job/jenkins_main_trunk/".equals(System.getenv("JOB_URL")))
+        Assume.assumeFalse("SocketTimeoutException from goTo due to GET http://localhost:…/update-center.json?…", System.getenv("JOB_URL") != null);
         UpdateSite.neverUpdate = false;
         j.createWebClient().goTo("") // load the metadata
         def job = j.jenkins.updateCenter.getPlugin("changelog-history").deploy().get(); // this seems like one of the smallest plugin
diff --git a/test/src/test/java/hudson/tasks/FingerprinterTest.java b/test/src/test/java/hudson/tasks/FingerprinterTest.java
index 1804a3649fbaf7f167eee77d2c9a9fbc7861cb85..8236418f516246c59051fd6cd63663064ac3f84c 100644
--- a/test/src/test/java/hudson/tasks/FingerprinterTest.java
+++ b/test/src/test/java/hudson/tasks/FingerprinterTest.java
@@ -297,7 +297,7 @@ public class FingerprinterTest {
     @Bug(18417)
     @Test
     public void fingerprintCleanup() throws Exception {
-        Assume.assumeFalse("for p3.upstreamProjects expected:<[hudson.model.FreeStyleProject@590e5b8[test0]]> but was:<[]>", "https://jenkins.ci.cloudbees.com/job/core/job/jenkins_main_trunk/".equals(System.getenv("JOB_URL")));
+        Assume.assumeFalse("for p3.upstreamProjects expected:<[hudson.model.FreeStyleProject@590e5b8[test0]]> but was:<[]>", System.getenv("JOB_URL") != null);
         // file names shouldn't matter
         FreeStyleProject p1 = createFreeStyleProjectWithFingerprints(singleContents, singleFiles);
         FreeStyleProject p2 = createFreeStyleProjectWithFingerprints(singleContents, singleFiles2);
diff --git a/test/src/test/java/hudson/tasks/junit/JUnitResultArchiverTest.java b/test/src/test/java/hudson/tasks/junit/JUnitResultArchiverTest.java
index 370ae36bd5c77ed9fda4764fa2d69c0bcffbc5ba..27c625249e33eada572705ed2687f49f74e98303 100644
--- a/test/src/test/java/hudson/tasks/junit/JUnitResultArchiverTest.java
+++ b/test/src/test/java/hudson/tasks/junit/JUnitResultArchiverTest.java
@@ -77,7 +77,7 @@ public class JUnitResultArchiverTest {
 
    @LocalData
    @Test public void slave() throws Exception {
-        Assume.assumeFalse("TimeoutException from basic", "https://jenkins.ci.cloudbees.com/job/core/job/jenkins_main_trunk/".equals(System.getenv("JOB_URL")));
+        Assume.assumeFalse("TimeoutException from basic", System.getenv("JOB_URL") != null);
         DumbSlave s = j.createOnlineSlave();
         project.setAssignedLabel(s.getSelfLabel());