Google test does not print PASS/FAIL. Exits abnormally

I get this output when I run my gtest

[==========] Running 1 test from 1 test suite.
[----------] Global test environment set-up.
[----------] 1 test from Test
[ RUN      ] Test.Foo

and it exits after this.

My code is as follows:

//Exception file
class myex : public std::runtime_error {
  myex(const std::string& reason)
        : std::runtime_error(reason){
  }
}

//TestFile

class Test : public testing::Test {

public:
 MockClass mc;
 std::unique_ptr<classToTest> obj;

 void SetUp(){
   obj = std::make_unique<classToTest>(mc);
 }

 void bar() {
  std::string error = "error";
  throw myex(error);
 }
}

TEST_F(Test, Bar) {
 EXPECT_THROW(bar(), myex); //works. Print PASS.
}

TEST_F(Test, Foo) {
 EXPECT_THROW(obj->fn(), myex); // doesnot work. Prints not PASS/FAIL.
}

TEST_F(Test, test1) {
 obj->fn(); // prints : unknown file: error: (correctly prints the reason)
}

//ClassToTest file
class classToTest {
 void fn() {
   throw myex("Error has occurred");
 }
}

I do not understand why the error thrown in from classToTest is identified by gtest as

Unknown File: error: C++ exception ...

And, why does it not show PASS/FAIl for the

EXPECT_THROW(fn(), myex)

but weirdly exits.

Kindly let me know if I have made any mistake and also, if you need any more information. TIA.