start some tests on add command

tests/add/file.sh

@@ -0,0 +1,84 @@
+#!/bin/sh
+
+get_exe() {
+    exe=$(pwd)
+    exe+="/../target/debug/nextsync"
+    if [ ! -f $exe ]; then
+        echo "No executable found, try to compile first" 
+        exit 4
+    fi
+}
+setup_env() {
+    [ ! -v exe ] && get_exe
+    path=$(mktemp -d)
+    cd $path
+}
+
+add_cmp() {
+    res=$($exe status --nostyle)
+    diff  <(echo -e "$2" ) <(echo -e "$res") 2> /dev/null > /dev/null
+    if [ $? -ne 0 ]; then
+        echo -e "$1: Output differ:"
+        diff  <(echo -e "$2" ) <(echo -e "$res")
+        echo $path
+        exit 1
+    fi
+}
+
+add_test() {
+    setup_env
+    $exe init
+    touch $2
+    $exe add $3
+    add_cmp "$1" "$4"
+}
+
+add_basics() {
+    add_test "basic" "toto" "toto" "new: toto"
+}
+
+add_space() {
+    setup_env
+    $exe init
+    touch 'to to' 
+    $exe add 'to to' 
+    res=$($exe status --nostyle)
+    add_cmp "space" "new: to to"
+}
+
+add_multiple() {
+    add_test "multiple" "titi riri" "titi riri" "new: titi\nnew: riri"
+}
+
+add_regex() {
+    add_test "regex" "titi riri" "./*" "new: riri\nnew: titi"
+}
+
+add_subdir() {
+    setup_env
+    $exe init
+    mkdir dir
+    touch dir/toto 
+    $exe add "./dir/toto" 
+    res=$($exe status --nostyle)
+    add_cmp "subdir" "new: dir/toto"
+}
+
+add_subdir_regex() {
+    setup_env
+    $exe init
+    mkdir dir
+    touch dir/toto dir/roro 
+    $exe add "./dir/*" 
+    res=$($exe status --nostyle)
+    add_cmp "subdir_regex" "new: dir/roro\nnew: dir/toto"
+}
+
+add_basics
+add_space
+add_multiple
+add_regex
+add_subdir
+#add_subdir_regex
+
+exit 0

tests/main.sh

@@ -0,0 +1,34 @@
+#!/bin/sh
+
+# Getting all tests
+TESTS=$(find -name "*.sh" -not -name "main.sh")
+if [ $# -ne 0 ]; then
+    TESTS=$(find -name "*$1*" -not -name "main.sh") 
+    tests=""
+    for obj in $TESTS; do
+        [ -d $obj ] && tests+=$(find -path "$obj/*.sh" -not -name "main.sh")
+    done;
+    TESTS=$tests
+fi
+
+# Executing tests
+nb_tests=0
+nb_success=0
+for test in $TESTS; do
+    nb_tests=$((nb_tests + 1))
+
+    # run file
+    $test
+    exit_code=$?
+
+    if [ $exit_code -eq 0 ]; then
+        nb_success=$((nb_success + 1))
+    elif [ $exit_code -eq 4 ]; then
+        # not executable found, not need to try other tests
+        exit 1
+    else
+        echo "$test failed with exit code $exit_code"
+    fi
+done;
+
+echo -e "\nRan $nb_tests tests ($((nb_tests - nb_success)) Failed)"