diff --git a/jac/jaclang/cli/cli.py b/jac/jaclang/cli/cli.py
index a16c288443..3f2782e4df 100644
--- a/jac/jaclang/cli/cli.py
+++ b/jac/jaclang/cli/cli.py
@@ -307,6 +307,7 @@ def enter(
 @cmd_registry.register
 def test(
     filepath: str,
+    test_name: str = "",
     filter: str = "",
     xit: bool = False,
     maxfail: int = None,  # type:ignore
@@ -316,6 +317,7 @@ def test(
     """Run the test suite in the specified .jac file.
 
     :param filepath: Path/to/file.jac
+    :param test_name: Run a specific test.
     :param filter: Filter the files using Unix shell style conventions.
     :param xit(exit): Stop(exit) running tests as soon as finds an error.
     :param maxfail: Stop running tests after n failures.
@@ -328,6 +330,7 @@ def test(
 
     failcount = Jac.run_test(
         filepath=filepath,
+        func_name=("test_" + test_name) if test_name else None,
         filter=filter,
         xit=xit,
         maxfail=maxfail,
diff --git a/jac/jaclang/plugin/default.py b/jac/jaclang/plugin/default.py
index 76fa0df859..7b276ffcc8 100644
--- a/jac/jaclang/plugin/default.py
+++ b/jac/jaclang/plugin/default.py
@@ -5,6 +5,7 @@
 import ast as ast3
 import fnmatch
 import html
+import inspect
 import os
 import types
 from collections import OrderedDict
@@ -818,12 +819,14 @@ def jac_import(
     @hookimpl
     def create_test(test_fun: Callable) -> Callable:
         """Create a new test."""
+        file_path = inspect.getfile(test_fun)
+        func_name = test_fun.__name__
 
         def test_deco() -> None:
             test_fun(JacTestCheck())
 
         test_deco.__name__ = test_fun.__name__
-        JacTestCheck.add_test(test_deco)
+        JacTestCheck.add_test(file_path, func_name, test_deco)
 
         return test_deco
 
@@ -831,6 +834,7 @@ def test_deco() -> None:
     @hookimpl
     def run_test(
         filepath: str,
+        func_name: Optional[str],
         filter: Optional[str],
         xit: bool,
         maxfail: Optional[int],
@@ -849,7 +853,9 @@ def run_test(
                     mod_name = mod_name[:-5]
                 JacTestCheck.reset()
                 Jac.jac_import(target=mod_name, base_path=base, cachable=False)
-                JacTestCheck.run_test(xit, maxfail, verbose)
+                JacTestCheck.run_test(
+                    xit, maxfail, verbose, os.path.abspath(filepath), func_name
+                )
                 ret_count = JacTestCheck.failcount
             else:
                 print("Not a .jac file.")
@@ -875,7 +881,9 @@ def run_test(
                         print(f"\n\n\t\t* Inside {root_dir}" + "/" + f"{file} *")
                         JacTestCheck.reset()
                         Jac.jac_import(target=file[:-4], base_path=root_dir)
-                        JacTestCheck.run_test(xit, maxfail, verbose)
+                        JacTestCheck.run_test(
+                            xit, maxfail, verbose, os.path.abspath(file), func_name
+                        )
 
                     if JacTestCheck.breaker and (xit or maxfail):
                         break
diff --git a/jac/jaclang/plugin/feature.py b/jac/jaclang/plugin/feature.py
index 808b254ae9..a2fb585fed 100644
--- a/jac/jaclang/plugin/feature.py
+++ b/jac/jaclang/plugin/feature.py
@@ -359,6 +359,7 @@ def create_test(test_fun: Callable) -> Callable:
     @staticmethod
     def run_test(
         filepath: str,
+        func_name: Optional[str] = None,
         filter: Optional[str] = None,
         xit: bool = False,
         maxfail: Optional[int] = None,
@@ -368,6 +369,7 @@ def run_test(
         """Run the test suite in the specified .jac file."""
         return plugin_manager.hook.run_test(
             filepath=filepath,
+            func_name=func_name,
             filter=filter,
             xit=xit,
             maxfail=maxfail,
diff --git a/jac/jaclang/plugin/spec.py b/jac/jaclang/plugin/spec.py
index bc1bf01259..aa7371cc85 100644
--- a/jac/jaclang/plugin/spec.py
+++ b/jac/jaclang/plugin/spec.py
@@ -345,6 +345,7 @@ def create_test(test_fun: Callable) -> Callable:
     @hookspec(firstresult=True)
     def run_test(
         filepath: str,
+        func_name: Optional[str],
         filter: Optional[str],
         xit: bool,
         maxfail: Optional[int],
diff --git a/jac/jaclang/runtimelib/test.py b/jac/jaclang/runtimelib/test.py
index f453b74c07..64a878d037 100644
--- a/jac/jaclang/runtimelib/test.py
+++ b/jac/jaclang/runtimelib/test.py
@@ -3,6 +3,7 @@
 from __future__ import annotations
 
 import unittest
+from dataclasses import dataclass
 from typing import Callable, Optional
 
 
@@ -56,6 +57,16 @@ class JacTestCheck:
 
     test_case = unittest.TestCase()
     test_suite = unittest.TestSuite()
+
+    @dataclass
+    class TestSuite:
+        """Test Suite."""
+
+        test_case: unittest.FunctionTestCase
+        func_name: str
+
+    test_suite_path: dict[str, list[TestSuite]] = {}
+
     breaker = False
     failcount = 0
 
@@ -64,13 +75,45 @@ def reset() -> None:
         """Clear the test suite."""
         JacTestCheck.test_case = unittest.TestCase()
         JacTestCheck.test_suite = unittest.TestSuite()
+        JacTestCheck.test_suite_path = {}
 
     @staticmethod
-    def run_test(xit: bool, maxfail: int | None, verbose: bool) -> None:
+    def run_test(
+        xit: bool,
+        maxfail: int | None,
+        verbose: bool,
+        filepath: str | None,
+        func_name: str | None,
+    ) -> None:
         """Run the test suite."""
         verb = 2 if verbose else 1
+        test_suite = JacTestCheck.test_suite
+
+        if filepath and filepath.endswith(".test.jac"):
+            filepath = filepath[:-9]
+        elif filepath and filepath.endswith(".jac"):
+            filepath = filepath[:-4]
+
+        if filepath:
+            test_cases = JacTestCheck.test_suite_path.get(filepath)
+            if test_cases is not None:
+                test_suite = unittest.TestSuite()
+                for test_case in test_cases:
+                    if func_name:
+                        if test_case.func_name == func_name:
+                            test_suite.addTest(test_case.test_case)
+                    else:
+                        test_suite.addTest(test_case.test_case)
+
+        elif func_name:
+            test_suite = unittest.TestSuite()
+            for test_cases in JacTestCheck.test_suite_path.values():
+                for test_case in test_cases:
+                    if test_case.func_name == func_name:
+                        test_suite.addTest(test_case.test_case)
+
         runner = JacTextTestRunner(max_failures=maxfail, failfast=xit, verbosity=verb)
-        result = runner.run(JacTestCheck.test_suite)
+        result = runner.run(test_suite)
         if result.wasSuccessful():
             print("Passed successfully.")
         else:
@@ -81,9 +124,21 @@ def run_test(xit: bool, maxfail: int | None, verbose: bool) -> None:
             )
 
     @staticmethod
-    def add_test(test_fun: Callable) -> None:
+    def add_test(filepath: str, func_name: str, test_func: Callable) -> None:
         """Create a new test."""
-        JacTestCheck.test_suite.addTest(unittest.FunctionTestCase(test_fun))
+        if filepath and filepath.endswith(".test.jac"):
+            filepath = filepath[:-9]
+        elif filepath and filepath.endswith(".jac"):
+            filepath = filepath[:-4]
+
+        if filepath not in JacTestCheck.test_suite_path:
+            JacTestCheck.test_suite_path[filepath] = []
+
+        test_case = unittest.FunctionTestCase(test_func)
+        JacTestCheck.test_suite_path[filepath].append(
+            JacTestCheck.TestSuite(test_case=test_case, func_name=func_name)
+        )
+        JacTestCheck.test_suite.addTest(test_case)
 
     def __getattr__(self, name: str) -> object:
         """Make convenient check.Equal(...) etc."""
diff --git a/jac/jaclang/tests/fixtures/jactest_imported.jac b/jac/jaclang/tests/fixtures/jactest_imported.jac
new file mode 100644
index 0000000000..f9695e7962
--- /dev/null
+++ b/jac/jaclang/tests/fixtures/jactest_imported.jac
@@ -0,0 +1,6 @@
+
+
+test this_should_not_run {
+    print("This test should not run after import.");
+    assert False;
+}
diff --git a/jac/jaclang/tests/fixtures/jactest_main.jac b/jac/jaclang/tests/fixtures/jactest_main.jac
new file mode 100644
index 0000000000..dc174dd898
--- /dev/null
+++ b/jac/jaclang/tests/fixtures/jactest_main.jac
@@ -0,0 +1,22 @@
+import jactest_imported;
+
+can fib(n: int) -> int {
+    if n <= 1 {
+        return n;
+    }
+    return fib(n - 1) + fib(n - 2);
+}
+
+
+test first_two {
+    print("Testing first 2 fibonacci numbers.");
+    assert fib(0) == 0;
+    assert fib(1) == 0;
+}
+
+test from_2_to_10 {
+    print("Testing fibonacci numbers from 2 to 10.");
+    for i in range(2, 10) {
+        assert fib(i) == fib(i - 1) + fib(i - 2);
+    }
+}
diff --git a/jac/jaclang/tests/test_cli.py b/jac/jaclang/tests/test_cli.py
index cf9b1cd183..8e20720a7d 100644
--- a/jac/jaclang/tests/test_cli.py
+++ b/jac/jaclang/tests/test_cli.py
@@ -393,6 +393,27 @@ def test_run_test(self) -> None:
         self.assertIn("...F", stderr)
         self.assertIn("F.F", stderr)
 
+    def test_run_specific_test_only(self) -> None:
+        """Test a specific test case."""
+        process = subprocess.Popen(
+            [
+                "jac",
+                "test",
+                "-t",
+                "from_2_to_10",
+                self.fixture_abs_path("jactest_main.jac"),
+            ],
+            stdin=subprocess.PIPE,
+            stdout=subprocess.PIPE,
+            stderr=subprocess.PIPE,
+            text=True,
+        )
+        stdout, stderr = process.communicate()
+        self.assertIn("Ran 1 test", stderr)
+        self.assertIn("Testing fibonacci numbers from 2 to 10.", stdout)
+        self.assertNotIn("Testing first 2 fibonacci numbers.", stdout)
+        self.assertNotIn("This test should not run after import.", stdout)
+
     def test_graph_coverage(self) -> None:
         """Test for coverage of graph cmd."""
         graph_params = set(inspect.signature(cli.dot).parameters.keys())