Update mru.vim.

sources_non_forked/mru.vim/test/.coveragerc

@@ -0,0 +1,3 @@
+[run]
+plugins = covimerage
+data_file = .coverage_covimerage

sources_non_forked/mru.vim/test/run_mru_tests.cmd

@@ -0,0 +1,18 @@
+@echo off
+
+REM Script to run the unit-tests for the MRU Vim plugin on MS-Windows
+
+SETLOCAL
+SET VIMPRG="vim.exe"
+REM SET VIMPRG="C:\Program Files (x86)\vim\vim82\vim.exe"
+REM SET VIMPRG="C:\Program Files (x86)\vim\vim73\vim.exe"
+SET VIM_CMD=%VIMPRG% -N -u NONE -U NONE -i NONE --not-a-term
+
+%VIM_CMD% -S unit_tests.vim
+
+echo MRU unit test results
+type results.txt
+
+findstr /I FAIL results.txt > nul 2>&1
+if %ERRORLEVEL% EQU 0 echo ERROR: Some test failed.
+if %ERRORLEVEL% NEQ 0 echo SUCCESS: All the tests passed.

sources_non_forked/mru.vim/test/run_mru_tests.sh

@@ -0,0 +1,30 @@
+#!/bin/bash
+
+# Script to run the unit-tests for the MRU Vim plugin
+
+VIMPRG=${VIMPRG:=/usr/bin/vim}
+VIM_CMD="$VIMPRG -N -u NONE -U NONE -i NONE"
+
+$VIM_CMD -S unit_tests.vim
+
+echo "MRU unit test results"
+echo
+
+if [ ! -f results.txt ]
+then
+  echo "ERROR: Test results file 'results.txt' is not found"
+  exit 1
+fi
+
+cat results.txt
+
+echo
+grep FAIL results.txt > /dev/null 2>&1
+if [ $? -eq 0 ]
+then
+  echo "ERROR: Some test(s) failed."
+  exit 1
+fi
+
+echo "SUCCESS: All the tests passed."
+exit 0