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ggregory pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/commons-text.git

commit aff500a12be2ee75604a17c7a43af5c43c7c27c7
Author: Gary Gregory <[email protected]>
AuthorDate: Sat Jul 18 17:14:21 2020 -0400

    Increase code coverage.
---
 .../apache/commons/text/TextStringBuilderAppendInsertTest.java    | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git 
a/src/test/java/org/apache/commons/text/TextStringBuilderAppendInsertTest.java 
b/src/test/java/org/apache/commons/text/TextStringBuilderAppendInsertTest.java
index 9f6fe32..5a91d30 100644
--- 
a/src/test/java/org/apache/commons/text/TextStringBuilderAppendInsertTest.java
+++ 
b/src/test/java/org/apache/commons/text/TextStringBuilderAppendInsertTest.java
@@ -986,6 +986,14 @@ public class TextStringBuilderAppendInsertTest {
     @Test
     public void testAppendSeparator_String_int() {
         final TextStringBuilder sb = new TextStringBuilder();
+        sb.appendSeparator(null, -1); // no effect
+        assertThat(sb.toString()).isEqualTo("");
+        sb.appendSeparator(null, 0); // no effect
+        assertThat(sb.toString()).isEqualTo("");
+        sb.appendSeparator(null, 1); // no effect
+        assertThat(sb.toString()).isEqualTo("");
+        sb.appendSeparator(",", -1); // no effect
+        assertThat(sb.toString()).isEqualTo("");
         sb.appendSeparator(",", 0); // no effect
         assertThat(sb.toString()).isEqualTo("");
         sb.append("foo");

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