fix #2877: empty trackables page

2 files changed, 18 insertions, 0 deletions

diff --git a/main/src/cgeo/geocaching/utils/HtmlUtils.java b/main/src/cgeo/geocaching/utils/HtmlUtils.java
index 8d4eed1..89b1070 100644
--- a/main/src/cgeo/geocaching/utils/HtmlUtils.java
+++ b/main/src/cgeo/geocaching/utils/HtmlUtils.java
@@ -20,6 +20,9 @@ public class HtmlUtils {
      * @return
      */
     public static String extractText(CharSequence html) {
+        if (StringUtils.isBlank(html)) {
+            return StringUtils.EMPTY;
+        }
         String result = html.toString();
 
         // recognize images in textview HTML contents
diff --git a/tests/src/cgeo/geocaching/utils/HtmlUtilsTest.java b/tests/src/cgeo/geocaching/utils/HtmlUtilsTest.java
new file mode 100644
index 0000000..3715c80
--- /dev/null
+++ b/tests/src/cgeo/geocaching/utils/HtmlUtilsTest.java
@@ -0,0 +1,15 @@
+package cgeo.geocaching.utils;
+
+import org.apache.commons.lang3.StringUtils;
+
+import junit.framework.TestCase;
+
+public class HtmlUtilsTest extends TestCase {
+
+    public static void testExtractText() {
+        assertEquals(StringUtils.EMPTY, HtmlUtils.extractText(null));
+        assertEquals(StringUtils.EMPTY, HtmlUtils.extractText(StringUtils.EMPTY));
+        assertEquals(StringUtils.EMPTY, HtmlUtils.extractText("   "));
+    }
+
+}