1 files changed, 110 insertions, 0 deletions
diff --git a/src/test/java/com/google/devtools/build/lib/util/StringUtilTest.java b/src/test/java/com/google/devtools/build/lib/util/StringUtilTest.java
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+++ b/src/test/java/com/google/devtools/build/lib/util/StringUtilTest.java
@@ -0,0 +1,110 @@
+// Copyright 2014 Google Inc. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+package com.google.devtools.build.lib.util;
+
+import static com.google.devtools.build.lib.util.StringUtil.capitalize;
+import static com.google.devtools.build.lib.util.StringUtil.indent;
+import static com.google.devtools.build.lib.util.StringUtil.joinEnglishList;
+import static com.google.devtools.build.lib.util.StringUtil.splitAndInternString;
+import static com.google.devtools.build.lib.util.StringUtil.stripSuffix;
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertSame;
+
+import com.google.common.collect.ImmutableList;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.junit.runners.JUnit4;
+
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.List;
+
+/**
+ * A test for {@link StringUtil}.
+ */
+@RunWith(JUnit4.class)
+public class StringUtilTest {
+
+  @Test
+  public void testJoinEnglishList() throws Exception {
+    assertEquals("nothing",
+        joinEnglishList(Collections.emptyList()));
+    assertEquals("one",
+        joinEnglishList(Arrays.asList("one")));
+    assertEquals("one or two",
+        joinEnglishList(Arrays.asList("one", "two")));
+    assertEquals("one and two",
+        joinEnglishList(Arrays.asList("one", "two"), "and"));
+    assertEquals("one, two or three",
+        joinEnglishList(Arrays.asList("one", "two", "three")));
+    assertEquals("one, two and three",
+        joinEnglishList(Arrays.asList("one", "two", "three"), "and"));
+    assertEquals("'one', 'two' and 'three'",
+        joinEnglishList(Arrays.asList("one", "two", "three"), "and", "'"));
+  }
+
+  @Test
+  public void splitAndIntern() throws Exception {
+    assertEquals(ImmutableList.of(), splitAndInternString("       "));
+    assertEquals(ImmutableList.of(), splitAndInternString(null));
+    List<String> list1 = splitAndInternString("    x y    z    z");
+    List<String> list2 = splitAndInternString("a z    c z");
+
+    assertEquals(ImmutableList.of("x", "y", "z", "z"), list1);
+    assertEquals(ImmutableList.of("a", "z", "c", "z"), list2);
+    assertSame(list1.get(2), list1.get(3));
+    assertSame(list1.get(2), list2.get(1));
+    assertSame(list2.get(1), list2.get(3));
+  }
+
+  @Test
+  public void listItemsWithLimit() throws Exception {
+    assertEquals("begin/a, b, c/end", StringUtil.listItemsWithLimit(
+        new StringBuilder("begin/"), 3, ImmutableList.of("a", "b", "c")).append("/end").toString());
+
+    assertEquals("begin/a, b, c ...(omitting 2 more item(s))/end", StringUtil.listItemsWithLimit(
+        new StringBuilder("begin/"), 3, ImmutableList.of("a", "b", "c", "d", "e"))
+            .append("/end").toString());
+  }
+
+  @Test
+  public void testIndent() throws Exception {
+    assertEquals("", indent("", 0));
+    assertEquals("", indent("", 1));
+    assertEquals("a", indent("a", 1));
+    assertEquals("\n  a", indent("\na", 2));
+    assertEquals("a\n  b", indent("a\nb", 2));
+    assertEquals("a\n b\n c\n d", indent("a\nb\nc\nd", 1));
+    assertEquals("\n ", indent("\n", 1));
+  }
+
+  @Test
+  public void testStripSuffix() throws Exception {
+    assertEquals("", stripSuffix("", ""));
+    assertEquals(null, stripSuffix("", "a"));
+    assertEquals("a", stripSuffix("a", ""));
+    assertEquals("a", stripSuffix("aa", "a"));
+    assertEquals(null, stripSuffix("ab", "c"));
+  }
+
+  @Test
+  public void testCapitalize() throws Exception {
+    assertEquals("", capitalize(""));
+    assertEquals("Joe", capitalize("joe"));
+    assertEquals("Joe", capitalize("Joe"));
+    assertEquals("O", capitalize("o"));
+    assertEquals("O", capitalize("O"));
+  }
+}