diff --git a/src/test/java/org/solovyev/android/calculator/TextHighlighterTest.java b/src/test/java/org/solovyev/android/calculator/TextHighlighterTest.java
index 19cd40d0..3ad1639c 100644
--- a/src/test/java/org/solovyev/android/calculator/TextHighlighterTest.java
+++ b/src/test/java/org/solovyev/android/calculator/TextHighlighterTest.java
@@ -53,5 +53,9 @@ public class TextHighlighterTest {
 				"        ln(8)*log(8) =>  ln(8)*og(8) FIXED\n" +
 				"        copy/paste ln(8)*log(8)\n" +
 				"        6!^2 ERROR");
+
+		Assert.assertEquals("<font color=\"#000000\"><i>sin</i>(</font><font color=\"#ffff9a\">2</font><font color=\"#000000\">)</font>", textHighlighter.process("sin(2)").toString());
+		Assert.assertEquals("<font color=\"#000000\"><i>atanh</i>(</font><font color=\"#ffff9a\">2</font><font color=\"#000000\">)</font>", textHighlighter.process("atanh(2)").toString());
+
 	}
 }
diff --git a/src/test/java/org/solovyev/android/calculator/math/MathTypeTest.java b/src/test/java/org/solovyev/android/calculator/math/MathTypeTest.java
index 642a3fc5..38c03982 100644
--- a/src/test/java/org/solovyev/android/calculator/math/MathTypeTest.java
+++ b/src/test/java/org/solovyev/android/calculator/math/MathTypeTest.java
@@ -41,6 +41,8 @@ public class MathTypeTest {
 			Assert.fail();
 		} catch (IllegalArgumentException e) {
 		}
+
+		Assert.assertEquals("atanh", MathType.getType("atanh", 0).getMatch());
 	}
 
 /*	@Test