commit 7a3af9f6f98ce69c1ebd2931817c2664a18cf279
author Irina <ichern@google.com> Fri Mar 15 05:44:01 2019 -0700
committer Copybara-Service <copybara-worker@google.com> Fri Mar 15 05:45:48 2019 -0700
tree d448164e2b4e219cf3370929fd308dbc6d3e2d5a
parent 009e78fc726e8b2964777a41f56a2bbe97f2870a

Add helper method for debug of Bazel run by JUnit black box tests

Closes #7735.

PiperOrigin-RevId: 238626987

src/test/java/com/google/devtools/build/lib/blackbox/framework/BuilderRunner.java

diff --git a/src/test/java/com/google/devtools/build/lib/blackbox/framework/BuilderRunner.java b/src/test/java/com/google/devtools/build/lib/blackbox/framework/BuilderRunner.java
index 1d69d92..5e3b005 100644
--- a/src/test/java/com/google/devtools/build/lib/blackbox/framework/BuilderRunner.java
+++ b/src/test/java/com/google/devtools/build/lib/blackbox/framework/BuilderRunner.java
@@ -51,6 +51,7 @@
   private int errorCode = 0;
   private List<String> flags;
   private boolean shouldFail;
+  private boolean enableDebug;
 
   /**
    * Creates the BuilderRunner
@@ -132,6 +133,17 @@
   }
 
   /**
+   * Should be used ONLY FOR TESTS DEBUG. Adds "--host_jvm_debug" to the Bazel startup options, so
+   * that the JVM waits for the debugger process to connect before executing any code.
+   *
+   * @return this BuilderRunner instance
+   */
+  public BuilderRunner enableDebug() {
+    this.enableDebug = true;
+    return this;
+  }
+
+  /**
    * Specifies that Bazel should not pass the default .bazelrc (in the test working directory) as
    * parameter
    *
@@ -267,6 +279,9 @@
         list.add(bazelRc.toAbsolutePath().toString());
       }
     }
+    if (enableDebug) {
+      list.add("--host_jvm_debug");
+    }
     list.add(command);
     list.addAll(this.flags);
     Collections.addAll(list, args);