diff --git a/src/unittest/unittestScripts.ts b/src/unittest/unittestScripts.ts
index d6de491..a3f9407 100644
--- a/src/unittest/unittestScripts.ts
+++ b/src/unittest/unittestScripts.ts
@@ -162,7 +162,21 @@ def discover_tests(start_directory, pattern):
 def filter_by_test_ids(tests, test_ids):
     if not test_ids:
         return tests
-    return filter(lambda test: any(test.id().startswith(name) for name in test_ids), tests)
+    tests_by_id = {}
+    for test_id in test_ids:
+        tests_by_id[test_id] = []
+    for test in tests:
+        if test.id() in tests_by_id:
+            tests_by_id[test.id()].append(test)
+        else:
+            matching_ids = [test_id for test_id in test_ids if test.id().startswith(test_id + '.')]
+            for test_id in matching_ids:
+                tests_by_id[test_id].append(test)
+    unique_tests = {}
+    for test_id, matching_tests in tests_by_id.items():
+        for matching_test in matching_tests:
+            unique_tests[matching_test.id()] = matching_test
+    return unique_tests.values()
 
 
 def run_tests(start_directory, pattern, test_ids):
diff --git a/test/test_samples/unittest/other_tests/test_string.py b/test/test_samples/unittest/other_tests/test_string.py
new file mode 100644
index 0000000..b77811a
--- /dev/null
+++ b/test/test_samples/unittest/other_tests/test_string.py
@@ -0,0 +1,9 @@
+import unittest
+
+class StringTestWithSimilarNames(unittest.TestCase):
+    def test_string_passed(self):
+        self.assertEqual('sample', 'Sample'.lower())
+
+    # Test name starts with the same name as above.
+    def test_string_passed_capitalize_passed(self):
+        self.assertEqual('Sample', 'sample'.capitalize())
diff --git a/test/tests/unittestGeneral.test.ts b/test/tests/unittestGeneral.test.ts
index c138f8e..125b6ac 100644
--- a/test/tests/unittestGeneral.test.ts
+++ b/test/tests/unittestGeneral.test.ts
@@ -45,7 +45,8 @@ suite('Unittest test discovery', () => {
             'EnvironmentVariablesTests',
             'InvalidTestIdTests_failed',
             'test_invalid_import_failed',
-            'test_invalid_syntax_failed'
+            'test_invalid_syntax_failed',
+            'StringTestWithSimilarNames'
         ];
         const labels = mainSuite!.children.map(x => x.label);
         expect(labels).to.have.members(expectedSuites);
@@ -159,6 +160,21 @@ suite('Run unittest tests', () => {
             });
         });
     });
+
+    test('should run single test even when test name if the prefix for the other', async () => {
+        const { suite: mainSuite } = await runner.load(config);
+        const testToRun = findTestSuiteByLabel(mainSuite!, 'test_string_passed');
+        expect(testToRun).to.be.not.undefined;
+        const testToSkip = findTestSuiteByLabel(mainSuite!, 'test_string_passed_capitalize_passed');
+        expect(testToSkip).to.be.not.undefined;
+
+        const states = await runner.run(config, testToRun!.id);
+        expect(states).to.have.length(1);
+        const executionResult = states[0];
+
+        const expectedState = extractExpectedState(executionResult.test as string);
+        expect(executionResult.state).to.be.eq(expectedState);
+    });
 });
 
 suite('Unittest run and discovery with start folder in config', () => {