Add more data to the exception thrown when putOnlyEntry's verification fails.

If this exception is thrown, performance no longer matters - we're detonating
the place and riding the explosion out to stderr. So we might as well just
dump everything we know.

RELNOTES: None.
PiperOrigin-RevId: 200290439

1 files changed, 2 insertions, 2 deletions

diff --git a/src/test/java/com/google/devtools/build/lib/skyframe/ConfigurationsForTargetsTest.java b/src/test/java/com/google/devtools/build/lib/skyframe/ConfigurationsForTargetsTest.java
index 9cf22d8555..79fdc5f56e 100644
--- a/src/test/java/com/google/devtools/build/lib/skyframe/ConfigurationsForTargetsTest.java
+++ b/src/test/java/com/google/devtools/build/lib/skyframe/ConfigurationsForTargetsTest.java
@@ -289,13 +289,13 @@ public class ConfigurationsForTargetsTest extends AnalysisTestCase {
       ConfigurationResolver.putOnlyEntry(map, "foo", "baz");
       fail("Expected an exception when trying to add a new value to an existing key");
     } catch (VerifyException e) {
-      assertThat(e).hasMessage("couldn't insert baz: map already has key foo");
+      assertThat(e).hasMessage("couldn't insert baz: map already has values for key foo: [bar]");
     }
     try {
       ConfigurationResolver.putOnlyEntry(map, "foo", "bar");
       fail("Expected an exception when trying to add a pre-existing <key, value> pair");
     } catch (VerifyException e) {
-      assertThat(e).hasMessage("couldn't insert bar: map already has key foo");
+      assertThat(e).hasMessage("couldn't insert bar: map already has values for key foo: [bar]");
     }
   }