Fix #3102 HtmlChart is uncolored

Closes #3697.

PiperOrigin-RevId: 168353082

1 files changed, 14 insertions, 0 deletions

diff --git a/src/test/java/com/google/devtools/build/lib/profiler/ProfilerChartTest.java b/src/test/java/com/google/devtools/build/lib/profiler/ProfilerChartTest.java
index 0551881064..e27ae16962 100644
--- a/src/test/java/com/google/devtools/build/lib/profiler/ProfilerChartTest.java
+++ b/src/test/java/com/google/devtools/build/lib/profiler/ProfilerChartTest.java
@@ -29,12 +29,14 @@ import com.google.devtools.build.lib.profiler.chart.ChartRow;
 import com.google.devtools.build.lib.profiler.chart.ChartVisitor;
 import com.google.devtools.build.lib.profiler.chart.Color;
 import com.google.devtools.build.lib.profiler.chart.DetailedChartCreator;
+import com.google.devtools.build.lib.profiler.chart.HtmlChartVisitor;
 import com.google.devtools.build.lib.testutil.FoundationTestCase;
 import com.google.devtools.build.lib.testutil.Scratch;
 import com.google.devtools.build.lib.testutil.Suite;
 import com.google.devtools.build.lib.testutil.TestSpec;
 import com.google.devtools.build.lib.vfs.Path;
 import java.util.List;
+import java.util.Locale;
 import org.junit.Test;
 import org.junit.runner.RunWith;
 import org.junit.runners.JUnit4;
@@ -230,6 +232,18 @@ public class ProfilerChartTest extends FoundationTestCase {
     assertThat(visitor.lineCount).isEqualTo(0);
   }
 
+  @Test
+  public void testHtmlChartVisitorFormatColor() {
+    Locale defaultLocale = Locale.getDefault();
+
+    Locale.setDefault(Locale.GERMANY);
+    String black = HtmlChartVisitor.formatColor(Color.GRAY);
+    String[] grayComponents = black.split(",");
+    assertThat(grayComponents.length).isEqualTo(4);
+
+    Locale.setDefault(defaultLocale);
+  }
+
   private ProfileInfo createProfileInfo(Runnable runnable, int noOfRows) throws Exception {
     Scratch scratch = new Scratch();
     Path cacheDir = scratch.dir("/tmp");