Test added for PY-15869

python/testData/testRunner/env/unit/another_file_for_pattern.py

@@ -0,0 +1,9 @@
+__author__ = 'Ilya.Kazakevich'
+from unittest import TestCase
+
+class UTests(TestCase):
+    def testByPattern(self):
+        pass
+
+    def testByPattern2(self):
+        pass

python/testData/testRunner/env/unit/file_for_pattern.py

@@ -0,0 +1,9 @@
+__author__ = 'Ilya.Kazakevich'
+from unittest import TestCase
+
+class UTests(TestCase):
+    def testByPattern(self):
+        self.assertTrue(False)
+
+    def testByPattern2(self):
+        self.assertTrue(False)

python/testSrc/com/jetbrains/env/python/testing/PythonUnitTestingTest.java

@@ -32,6 +32,21 @@ public class PythonUnitTestingTest extends PyEnvTestCase{
     });
   }
 
+  /**
+   * Ensures pattern is supported
+   */
+  public void testUTRunnerByPattern() {
+    runPythonTest(new PyUnitTestTask("/testRunner/env/unit", "_args_separator_*pattern.py") {
+
+      @Override
+      public void after() {
+        assertEquals(4, allTestsCount());
+        assertEquals(2, passedTestsCount());
+        assertEquals(2, failedTestsCount());
+      }
+    });
+  }
+
   public void testClass() {
     runPythonTest(new PyUnitTestTask("/testRunner/env/unit", "test_file.py::GoodTest") {