Add tests for "always collect test results"

This is a follow-up for commit b74236d,
which adapted the `buildPlugin` and `buildPluginWithGradle` steps.

src/test/groovy/BuildPluginStepTests.groovy

@@ -219,13 +219,30 @@ class BuildPluginStepTests extends BasePipelineTest {
     def script = loadScript(scriptName)
     script.call(tests: [skip: true])
     printCallStack()
-    // then the junit step is disabled
+    // the junit step is disabled
     assertFalse(helper.callStack.any { call ->
       call.methodName == 'junit'
     })
     assertJobStatusSuccess()
   }
 
+  @Test
+  void test_buildPlugin_with_build_error() throws Exception {
+    def script = loadScript(scriptName)
+    binding.setProperty('infra', new Infra(buildError: true))
+    try {
+      script.call([:])
+    } catch (ignored) {
+      // intentionally left empty
+    }
+    printCallStack()
+    // it runs the junit step
+    assertTrue(helper.callStack.any { call ->
+      call.methodName == 'junit'
+    })
+    assertJobStatusFailure()
+  }
+
   @Test
   void test_buildPlugin_with_defaults_with_gradle() throws Exception {
     def script = loadScript(scriptName)
@@ -241,6 +258,25 @@ class BuildPluginStepTests extends BasePipelineTest {
     })
   }
 
+  @Test
+  void test_buildPlugin_with_build_error_with_gradle() throws Exception {
+    def script = loadScript(scriptName)
+    binding.setProperty('infra', new Infra(buildError: true))
+    // when running in a non maven project
+    helper.registerAllowedMethod('fileExists', [String.class], { s -> return !s.equals('pom.xml') })
+    try {
+      script.call([:])
+    } catch (ignored) {
+      // intentionally left empty
+    }
+    printCallStack()
+    // it runs the junit step
+    assertTrue(helper.callStack.any { call ->
+      call.methodName == 'junit'
+    })
+    assertJobStatusFailure()
+  }
+
   @Test
   void test_buildPlugin_with_failfast_and_unstable() throws Exception {
     def script = loadScript(scriptName)

src/test/groovy/BuildPluginWithGradleStepTests.groovy

@@ -91,13 +91,30 @@ class BuildPluginWithGradleStepTests extends BasePipelineTest {
     def script = loadScript(scriptName)
     script.call(tests: [skip: true])
     printCallStack()
-    // then the junit step is disabled
+    // the junit step is disabled
     assertFalse(helper.callStack.any { call ->
       call.methodName == 'junit'
     })
     assertJobStatusSuccess()
   }
 
+  @Test
+  void test_buildPluginWithGradle_with_build_error() throws Exception {
+    def script = loadScript(scriptName)
+    binding.setProperty('infra', new Infra(buildError: true))
+    try {
+      script.call([:])
+    } catch (ignored) {
+      // intentionally left empty
+    }
+    printCallStack()
+    // it runs the junit step
+    assertTrue(helper.callStack.any { call ->
+      call.methodName == 'junit'
+    })
+    assertJobStatusFailure()
+  }
+
   @Test
   void test_buildPluginWithGradle_with_failfast_and_unstable() throws Exception {
     def script = loadScript(scriptName)

src/test/groovy/mock/Infra.groovy

@@ -6,6 +6,7 @@ package mock
 class Infra implements Serializable {
 
   private boolean trusted
+  private boolean buildError
 
   public void checkout(String repo = null) { }
 
@@ -23,7 +24,11 @@ class Infra implements Serializable {
   }
 
   public Object runWithJava(String command, String jdk = null, List<String> extraEnv = null, Boolean addToolEnv = null) {
-    return command
+    if (buildError) {
+      throw new RuntimeException('build error')
+    } else {
+      return command
+    }
   }
 
   public boolean isTrusted() {