1 files changed, 44 insertions, 0 deletions
diff --git a/driver/src/test/java/com/code_intelligence/jazzer/driver/OptTest.java b/driver/src/test/java/com/code_intelligence/jazzer/driver/OptTest.java
new file mode 100644
index 00000000..87cda2b1
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+++ b/driver/src/test/java/com/code_intelligence/jazzer/driver/OptTest.java
@@ -0,0 +1,44 @@
+/*
+ * Copyright 2022 Code Intelligence GmbH
+ *
+ * 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.code_intelligence.jazzer.driver;
+
+import static org.junit.Assert.assertEquals;
+
+import java.util.Arrays;
+import java.util.stream.Collectors;
+import org.junit.Test;
+
+public class OptTest {
+  @Test
+  public void splitString() {
+    assertStringSplit("", ',');
+    assertStringSplit(",,,,,", ',');
+    assertStringSplit("fir\\\\st se\\ cond      third", ' ', "fir\\st", "se cond", "third");
+    assertStringSplit("first ", ' ', "first");
+    assertStringSplit("first\\", ' ', "first");
+  }
+
+  @Test(expected = IllegalArgumentException.class)
+  public void splitString_noBackslashAsSeparator() {
+    assertStringSplit("foo", '\\');
+  }
+
+  public void assertStringSplit(String str, char sep, String... tokens) {
+    assertEquals(Arrays.stream(tokens).collect(Collectors.toList()),
+        Opt.splitOnUnescapedSeparator(str, sep));
+  }
+}