diff --git a/sources/src/resources/init-scripts/gradle-actions.build-result-capture-service.plugin.groovy b/sources/src/resources/init-scripts/gradle-actions.build-result-capture-service.plugin.groovy
index b0ff4c89..e1adda61 100644
--- a/sources/src/resources/init-scripts/gradle-actions.build-result-capture-service.plugin.groovy
+++ b/sources/src/resources/init-scripts/gradle-actions.build-result-capture-service.plugin.groovy
@@ -45,8 +45,8 @@ abstract class BuildResultsRecorder implements BuildService<BuildResultsRecorder
             buildScanFailed: false
         ]
 
-        def runnerTempDir = System.getenv("RUNNER_TEMP")
-        def githubActionStep = System.getenv("GITHUB_ACTION")
+        def runnerTempDir = System.getProperty("RUNNER_TEMP") ?: System.getenv("RUNNER_TEMP")
+        def githubActionStep = System.getProperty("GITHUB_ACTION") ?: System.getenv("GITHUB_ACTION")
         if (!runnerTempDir || !githubActionStep) {
             return
         }
diff --git a/sources/src/resources/init-scripts/gradle-actions.build-result-capture.init.gradle b/sources/src/resources/init-scripts/gradle-actions.build-result-capture.init.gradle
index 6505c846..efcb6ad0 100644
--- a/sources/src/resources/init-scripts/gradle-actions.build-result-capture.init.gradle
+++ b/sources/src/resources/init-scripts/gradle-actions.build-result-capture.init.gradle
@@ -125,8 +125,8 @@ class BuildResults {
     }
 
     def writeToResultsFile(boolean overwrite) {
-        def runnerTempDir = System.getenv("RUNNER_TEMP")
-        def githubActionStep = System.getenv("GITHUB_ACTION")
+        def runnerTempDir = System.getProperty("RUNNER_TEMP") ?: System.getenv("RUNNER_TEMP")
+        def githubActionStep = System.getProperty("GITHUB_ACTION") ?: System.getenv("GITHUB_ACTION")
         if (!runnerTempDir || !githubActionStep) {
             return
         }
diff --git a/sources/test/init-scripts/src/test/groovy/com/gradle/gradlebuildaction/BaseInitScriptTest.groovy b/sources/test/init-scripts/src/test/groovy/com/gradle/gradlebuildaction/BaseInitScriptTest.groovy
index 460f5d25..175772cb 100644
--- a/sources/test/init-scripts/src/test/groovy/com/gradle/gradlebuildaction/BaseInitScriptTest.groovy
+++ b/sources/test/init-scripts/src/test/groovy/com/gradle/gradlebuildaction/BaseInitScriptTest.groovy
@@ -211,20 +211,31 @@ task expectFailure {
         File initScriptsDir = new File(testProjectDir, "initScripts")
         args << '-I' << new File(initScriptsDir, initScript).absolutePath
 
-        envVars.putIfAbsent('RUNNER_TEMP', testProjectDir.absolutePath)
-        envVars.putIfAbsent('GITHUB_ACTION', 'github-step-id')
-
         def runner = ((DefaultGradleRunner) GradleRunner.create())
-            .withJvmArguments(jvmArgs)
             .withGradleVersion(gradleVersion.version)
             .withProjectDir(testProjectDir)
             .withArguments(args)
-            .withEnvironment(envVars)
             .forwardOutput()
 
+        if (testKitSupportsEnvVars(gradleVersion)) {
+            runner.withEnvironment(envVars)
+        } else {
+            (runner as DefaultGradleRunner).withJvmArguments(jvmArgs)
+        }
+
         runner
     }
 
+    private boolean testKitSupportsEnvVars(GradleVersion gradleVersion) {
+        // TestKit supports env vars for Gradle 3.5+, except on M1 Mac where only 6.9+ is supported
+        def isM1Mac = System.getProperty("os.arch") == "aarch64"
+        if (isM1Mac) {
+            return gradleVersion >= GRADLE_6_X.gradleVersion
+        } else {
+            return gradleVersion >= GRADLE_3_X.gradleVersion
+        }
+    }
+
     static final class TestGradleVersion {
 
         final GradleVersion gradleVersion
diff --git a/sources/test/init-scripts/src/test/groovy/com/gradle/gradlebuildaction/TestBuildResultRecorder.groovy b/sources/test/init-scripts/src/test/groovy/com/gradle/gradlebuildaction/TestBuildResultRecorder.groovy
index 8f5402ae..476a49d8 100644
--- a/sources/test/init-scripts/src/test/groovy/com/gradle/gradlebuildaction/TestBuildResultRecorder.groovy
+++ b/sources/test/init-scripts/src/test/groovy/com/gradle/gradlebuildaction/TestBuildResultRecorder.groovy
@@ -11,7 +11,7 @@ class TestBuildResultRecorder extends BaseInitScriptTest {
         assumeTrue testGradleVersion.compatibleWithCurrentJvm
 
         when:
-        run(['help'], initScript, testGradleVersion.gradleVersion)
+        run(testGradleVersion.gradleVersion)
 
         then:
         assertResults('help', testGradleVersion, false, false)
@@ -25,7 +25,7 @@ class TestBuildResultRecorder extends BaseInitScriptTest {
 
         when:
         addFailingTaskToBuild()
-        runAndFail(['expectFailure'], initScript, testGradleVersion.gradleVersion)
+        runAndFail(testGradleVersion.gradleVersion)
 
         then:
         assertResults('expectFailure', testGradleVersion, true, false)
@@ -38,14 +38,14 @@ class TestBuildResultRecorder extends BaseInitScriptTest {
         assumeTrue testGradleVersion.compatibleWithCurrentJvm
 
         when:
-        run(['help', '--configuration-cache'], initScript, testGradleVersion.gradleVersion)
+        run(['help', '--configuration-cache'], testGradleVersion.gradleVersion)
 
         then:
         assertResults('help', testGradleVersion, false, false)
         assert buildResultFile.delete()
 
         when:
-        run(['help', '--configuration-cache'], initScript, testGradleVersion.gradleVersion)
+        run(['help', '--configuration-cache'], testGradleVersion.gradleVersion)
 
         then:
         assertResults('help', testGradleVersion, false, false)
@@ -59,7 +59,7 @@ class TestBuildResultRecorder extends BaseInitScriptTest {
 
         when:
         declareDevelocityPluginApplication(testGradleVersion.gradleVersion)
-        run(['help'], initScript, testGradleVersion.gradleVersion)
+        run(testGradleVersion.gradleVersion)
 
         then:
         assertResults('help', testGradleVersion, false, true)
@@ -73,7 +73,7 @@ class TestBuildResultRecorder extends BaseInitScriptTest {
 
         when:
         declareLegacyGradleEnterprisePluginApplication(testGradleVersion.gradleVersion)
-        run(['help'], initScript, testGradleVersion.gradleVersion)
+        run(testGradleVersion.gradleVersion)
 
         then:
         assertResults('help', testGradleVersion, false, true)
@@ -87,7 +87,7 @@ class TestBuildResultRecorder extends BaseInitScriptTest {
 
         when:
         declareDevelocityPluginApplication(testGradleVersion.gradleVersion)
-        run(['help', '--no-scan'], initScript, testGradleVersion.gradleVersion)
+        run(['help', '--no-scan'], testGradleVersion.gradleVersion)
 
         then:
         assertResults('help', testGradleVersion, false, false)
@@ -102,7 +102,7 @@ class TestBuildResultRecorder extends BaseInitScriptTest {
         when:
         declareDevelocityPluginApplication(testGradleVersion.gradleVersion)
         addFailingTaskToBuild()
-        runAndFail(['expectFailure'], initScript, testGradleVersion.gradleVersion)
+        runAndFail(testGradleVersion.gradleVersion)
 
         then:
         assertResults('expectFailure', testGradleVersion, true, true)
@@ -116,14 +116,14 @@ class TestBuildResultRecorder extends BaseInitScriptTest {
 
         when:
         declareDevelocityPluginApplication(testGradleVersion.gradleVersion)
-        run(['help', '--configuration-cache'], initScript, testGradleVersion.gradleVersion)
+        run(['help', '--configuration-cache'], testGradleVersion.gradleVersion)
 
         then:
         assertResults('help', testGradleVersion, false, true)
         assert buildResultFile.delete()
 
         when:
-        run(['help', '--configuration-cache'], initScript, testGradleVersion.gradleVersion)
+        run(['help', '--configuration-cache'], testGradleVersion.gradleVersion)
 
         then:
         assertResults('help', testGradleVersion, false, true)
@@ -139,7 +139,7 @@ class TestBuildResultRecorder extends BaseInitScriptTest {
         declareDevelocityPluginApplication(testGradleVersion.gradleVersion)
         addFailingTaskToBuild()
         failScanUpload = true
-        runAndFail(['expectFailure'], initScript, testGradleVersion.gradleVersion)
+        runAndFail(testGradleVersion.gradleVersion)
 
         then:
         assertResults('expectFailure', testGradleVersion, true, false, true)
@@ -152,7 +152,9 @@ class TestBuildResultRecorder extends BaseInitScriptTest {
         assumeTrue testGradleVersion.compatibleWithCurrentJvm
 
         when:
-        run(['help'], initScript, testGradleVersion.gradleVersion, [], [RUNNER_TEMP: '', GITHUB_ACTION: ''])
+        run(['help'], initScript, testGradleVersion.gradleVersion,
+            ["-DRUNNER_TEMP=", "-DGITHUB_ACTION="],
+            [RUNNER_TEMP: '', GITHUB_ACTION: ''])
 
         then:
         def buildResultsDir = new File(testProjectDir, '.build-results')
@@ -169,7 +171,9 @@ class TestBuildResultRecorder extends BaseInitScriptTest {
         def invalidDir = new File(testProjectDir, 'invalid-runner-temp')
         invalidDir.createNewFile()
 
-        run(['help'], initScript, testGradleVersion.gradleVersion, [], [RUNNER_TEMP: invalidDir.absolutePath])
+        run(['help'], initScript, testGradleVersion.gradleVersion,
+            ["-DRUNNER_TEMP=${invalidDir.absolutePath}".toString()],
+            [RUNNER_TEMP: invalidDir.absolutePath])
 
         then:
         def buildResultsDir = new File(testProjectDir, '.build-results')
@@ -195,7 +199,7 @@ class TestBuildResultRecorder extends BaseInitScriptTest {
             }
         """ + settingsFile.text
         
-        run(['help'], initScript, testGradleVersion.gradleVersion)
+        run(testGradleVersion.gradleVersion)
 
         then:
         assertResults('help', testGradleVersion, false, true)
@@ -204,6 +208,28 @@ class TestBuildResultRecorder extends BaseInitScriptTest {
         testGradleVersion << SETTINGS_PLUGIN_VERSIONS
     }
 
+    def run(def args = ['help'], def gradleVersion) {
+        return run(args, initScript, gradleVersion, jvmArgs, envVars)
+    }
+
+    def runAndFail(def gradleVersion) {
+        return runAndFail(['expectFailure'], initScript, gradleVersion, jvmArgs, envVars)
+    }
+
+    def getJvmArgs() {
+        [
+            "-DRUNNER_TEMP=${testProjectDir.absolutePath}".toString(),
+            "-DGITHUB_ACTION=github-step-id".toString()
+        ]
+    }
+
+    def getEnvVars() {
+        [
+            RUNNER_TEMP: testProjectDir.absolutePath,
+            GITHUB_ACTION: 'github-step-id'
+        ]
+    }
+
     void assertResults(String task, TestGradleVersion testGradleVersion, boolean hasFailure, boolean hasBuildScan, boolean scanUploadFailed = false) {
         def results = new JsonSlurper().parse(buildResultFile)
         assert results['rootProjectName'] == ROOT_PROJECT_NAME
diff --git a/sources/test/init-scripts/src/test/groovy/com/gradle/gradlebuildaction/TestDependencyGraph.groovy b/sources/test/init-scripts/src/test/groovy/com/gradle/gradlebuildaction/TestDependencyGraph.groovy
index 976a169c..53384003 100644
--- a/sources/test/init-scripts/src/test/groovy/com/gradle/gradlebuildaction/TestDependencyGraph.groovy
+++ b/sources/test/init-scripts/src/test/groovy/com/gradle/gradlebuildaction/TestDependencyGraph.groovy
@@ -30,7 +30,7 @@ class TestDependencyGraph extends BaseInitScriptTest {
         assumeTrue testGradleVersion.compatibleWithCurrentJvm
 
         when:
-        run(['help'], initScript, testGradleVersion.gradleVersion, [], envVars)
+        run(['help'], initScript, testGradleVersion.gradleVersion, jvmArgs, envVars)
 
         then:
         assert reportFile.exists()
@@ -43,7 +43,7 @@ class TestDependencyGraph extends BaseInitScriptTest {
         assumeTrue testGradleVersion.compatibleWithCurrentJvm
 
         when:
-        run(['help', '--configuration-cache'], initScript, testGradleVersion.gradleVersion, [], envVars)
+        run(['help', '--configuration-cache'], initScript, testGradleVersion.gradleVersion, jvmArgs, envVars)
 
         then:
         assert reportFile.exists()
@@ -57,7 +57,7 @@ class TestDependencyGraph extends BaseInitScriptTest {
         assumeTrue testGradleVersion.compatibleWithCurrentJvm
 
         when:
-        def result = run(['help'], initScript, testGradleVersion.gradleVersion, [], envVars)
+        def result = run(['help'], initScript, testGradleVersion.gradleVersion, jvmArgs, envVars)
 
         then:
         assert !reportsDir.exists()
@@ -73,7 +73,12 @@ class TestDependencyGraph extends BaseInitScriptTest {
         when:
         def vars = envVars
         vars.put('GITHUB_DEPENDENCY_GRAPH_CONTINUE_ON_FAILURE', 'false')
-        def result = runAndFail(['help'], initScript, testGradleVersion.gradleVersion, [], vars)
+        def args = jvmArgs
+        Collections.replaceAll(args,
+            '-DGITHUB_DEPENDENCY_GRAPH_CONTINUE_ON_FAILURE=true',
+            '-DGITHUB_DEPENDENCY_GRAPH_CONTINUE_ON_FAILURE=false'
+        )
+        def result = runAndFail(['help'], initScript, testGradleVersion.gradleVersion, args, vars)
 
         then:
         assert !reportsDir.exists()
@@ -103,20 +108,20 @@ class TestDependencyGraph extends BaseInitScriptTest {
         """
 
         when:
-        run(['help'], initScript, testGradleVersion.gradleVersion, [], envVars)
+        run(['help'], initScript, testGradleVersion.gradleVersion, jvmArgs, envVars)
 
         then:
         assert reportFile.exists()
 
         when:
-        run(['first'], initScript, testGradleVersion.gradleVersion, [], envVars)
+        run(['first'], initScript, testGradleVersion.gradleVersion, jvmArgs, envVars)
 
         then:
         assert reportFile.exists()
         assert reportFile1.exists()
         
         when:
-        run(['second'], initScript, testGradleVersion.gradleVersion, [], envVars)
+        run(['second'], initScript, testGradleVersion.gradleVersion, jvmArgs, envVars)
 
         then:
         assert reportFile.exists()
@@ -133,7 +138,11 @@ class TestDependencyGraph extends BaseInitScriptTest {
         when:
         def vars = envVars
         vars.put('GRADLE_PLUGIN_REPOSITORY_URL', 'https://plugins.grdev.net/m2')
-        def result = run(['help', '--info'], initScript, testGradleVersion.gradleVersion, [], vars)
+        // TODO:DAZ This props are set too late to control init-script plugin resolution
+        // This makes the tests fail on Mac with Gradle < 6
+        def args = jvmArgs
+        args.add('-DGRADLE_PLUGIN_REPOSITORY_URL=https://plugins.grdev.net/m2')
+        def result = run(['help', '--info'], initScript, testGradleVersion.gradleVersion, args, vars)
 
         then:
         assert reportFile.exists()
@@ -151,7 +160,13 @@ class TestDependencyGraph extends BaseInitScriptTest {
         vars.put('GRADLE_PLUGIN_REPOSITORY_URL', 'https://plugins.grdev.net/m2')
         vars.put('GRADLE_PLUGIN_REPOSITORY_USERNAME', 'REPO_USER')
         vars.put('GRADLE_PLUGIN_REPOSITORY_PASSWORD', 'REPO_PASSWORD')
-        def result = run(['help', '--info'], initScript, testGradleVersion.gradleVersion, [], vars)
+        // TODO:DAZ This props are set too late to control init-script plugin resolution
+        // This makes the tests fail on Mac with Gradle < 6
+        def args = jvmArgs
+        args.add('-DGRADLE_PLUGIN_REPOSITORY_URL=https://plugins.grdev.net/m2')
+        args.add('-DGRADLE_PLUGIN_REPOSITORY_USERNAME=REPO_USER')
+        args.add('-DGRADLE_PLUGIN_REPOSITORY_PASSWORD=REPO_PASSWORD')
+        def result = run(['help', '--info'], initScript, testGradleVersion.gradleVersion, args, vars)
 
         then:
         assert reportFile.exists()
@@ -175,6 +190,19 @@ class TestDependencyGraph extends BaseInitScriptTest {
         ]
     }
 
+    def getJvmArgs() {
+        return [
+            "-DGITHUB_DEPENDENCY_GRAPH_ENABLED=true",
+            "-DGITHUB_DEPENDENCY_GRAPH_CONTINUE_ON_FAILURE=true",
+            "-DGITHUB_DEPENDENCY_GRAPH_JOB_CORRELATOR=CORRELATOR",
+            "-DGITHUB_DEPENDENCY_GRAPH_JOB_ID=1",
+            "-DGITHUB_DEPENDENCY_GRAPH_REF=main",
+            "-DGITHUB_DEPENDENCY_GRAPH_SHA=123456",
+            "-DGITHUB_DEPENDENCY_GRAPH_WORKSPACE=" + testProjectDir.absolutePath,
+            "-DDEPENDENCY_GRAPH_REPORT_DIR=" + reportsDir.absolutePath,
+        ].collect {it.toString() } // Convert from GString to String
+    }
+
     def getReportsDir() {
         return new File(testProjectDir, 'build/reports/github-dependency-graph-snapshots')
     }
diff --git a/sources/test/init-scripts/src/test/groovy/com/gradle/gradlebuildaction/TestDevelocityInjection.groovy b/sources/test/init-scripts/src/test/groovy/com/gradle/gradlebuildaction/TestDevelocityInjection.groovy
index 6c988961..20ce467c 100644
--- a/sources/test/init-scripts/src/test/groovy/com/gradle/gradlebuildaction/TestDevelocityInjection.groovy
+++ b/sources/test/init-scripts/src/test/groovy/com/gradle/gradlebuildaction/TestDevelocityInjection.groovy
@@ -425,21 +425,7 @@ class TestDevelocityInjection extends BaseInitScriptTest {
     }
 
     private BuildResult run(TestGradleVersion testGradleVersion, TestConfig config, List<String> args = ["help"]) {
-        if (testKitSupportsEnvVars(testGradleVersion.gradleVersion)) {
-            return run(args, initScript, testGradleVersion.gradleVersion, [], config.envVars)
-        } else {
-            return run(args, initScript, testGradleVersion.gradleVersion, config.jvmArgs, [:])
-        }
-    }
-
-    private boolean testKitSupportsEnvVars(GradleVersion gradleVersion) {
-        // TestKit supports env vars for Gradle 3.5+, except on M1 Mac where only 6.9+ is supported
-        def isM1Mac = System.getProperty("os.arch") == "aarch64"
-        if (isM1Mac) {
-            return gradleVersion >= GRADLE_6_X.gradleVersion
-        } else {
-            return gradleVersion >= GRADLE_3_X.gradleVersion
-        }
+        return run(args, initScript, testGradleVersion.gradleVersion, config.jvmArgs, config.envVars)
     }
 
     private TestConfig testConfig(String develocityPluginVersion = DEVELOCITY_PLUGIN_VERSION) {