"Ran X tests." message is not accurate if a test exits

[Vincent Maffet]

I have been testing some functions that occasionaly call exit 1.
Those functions stop the execution of the test file.

Before stopping, shunit2 always says Ran X tests., where X is the number of tests in my test file.
However, if the Nth test exits, then we actually ran N-1 tests, not X.

Here is a file that reproduces the issue:

#! /bin/sh
# file: examples/exit_test.sh

test_one() {
  assertTrue 0
}

test_two() {
  exit
  assertTrue 0
}

test_three() {
  assertTrue 0
}

test_four() {
  assertTrue 0
}

# Load and run shUnit2.
. ../shunit2

The console output is currently:

test_one
test_two
ASSERT:unknown failure encountered running a test

Ran 4 tests.

FAILED (failures=1)

Outputting something like Ran 1 out of 4 tests. would be more accurate.