Do i just need to update my source lists like this :

http://ftp.sk.debian.org/debian/dists/testing/ stretch main non-free contrib

Or is it

deb http://ftp.sk.debian.org/debian/ testing main non-free contrib


Can someone share their /apt-list for testing ?
I am guessing once i do a apt-get update and apt-get upgrade and maybe an apt dist-upgrade i will be on testing ?

Why don't you switch to SID? Testing might have packages issue for months while SID won't take 2 or 3 days.

SID as ArchLinux has bleeding edge packages is as stable as the late one.

Some here are confused as to the purpose of Testing, it IS for testing. But SID is a rolling-release distro that is meant to all-purpose!

Anyway, even on SID/Testing you will need to use Wine staging repos because Debian Wine packages ain't compiled with gaming flags.

I had to do that months ago as I played a lot with Wine/Steam games!

Update

Managed to figure it out and get to testing and do a distro-upgrade
Only KDE crashed and recovered but rest is fine (sound , display , net connection)
A bit worried about the recommendation i got during dist upgrade to run "apt autoremove" as there are quite a few packages there.

The following packages will be REMOVED:
  bdf2psf caja-common debian-zh-faq-s dh-python dolphin4 fonts-hack-ttf fonts-oxygen g++-6 gcc-6-base:i386 gcj-6-jre-lib gir1.2-gnomekeyring-1.0 gnome-orca gnome-user-docs gnome-user-guide gtk3-engines-breeze iputils-arping ipxe-qemu kde-baseapps-bin kde-baseapps-data
  kde-icons-mono kdepasswd kdepim-doc kdesudo konqueror-nsplugins kpart-webkit ktnef libass5 libavcodec57:i386 libavdevice57 libavfilter6 libavformat57 libavresample3 libavresample3:i386 libavutil55:i386 libbind9-140 libblas-common libbluray1 libbtbb0 libcacard0
  libcapstone3 libcdio-cdda1 libcdio-paranoia1 libcdio13 libcomerr2:i386 libdns162 libdrm-dev libebur128-1 libenca0 libestools2.4 libexempi3 libfcitx-gclient0 libfcitx-qt0 libfdt1 libfile-copy-recursive-perl libgcj-bc libgcj-common libgcj17 libgcr-3-common
  libgegl-0.3-0 libgeoclue-2-0 libgfortran3 libgit2-24 libgles1-glvnd-nvidia libgles1-glvnd-nvidia:i386 libgles2-mesa libgloox15 libgltf-0.0-0v5 libgmime-2.6-0 libgnome-desktop-3-12 libgnome-keyring-common libgnome-keyring0 libgps22 libgtop-2.0-10 libhttp-parser2.1
  libhunspell-1.4-0 libical2 libicu57:i386 libidn11:i386 libilmbase12 libiodbc2 libiptcdata0 libisc160 libisccc140 libisccfg140 libiso9660-8 libjim0.76 libk3b6 libk3b6-extracodecs libkcddb4 libkcompactdisc4 libkdecorations2private5v5 libkexiv2-11 libkexiv2-data
  libkf5akonadicore-bin libkf5akonadiprivate5 libkf5calendarcore5 libkf5gapi-data libkf5gpgmepp-pthread5 libkf5incidenceeditor-bin libkf5kdgantt2-5 libkf5kipi31.0.0 libkf5mailcommon-plugins libkf5pimcommon-plugins libkf5qgpgme5 libkf5syndication5 libkf5webkit5
  libkonq-common libkonq5-templates libkonq5abi1 libkonqsidebarplugin4a libkprintutils4 libkxmlrpcclient4 liblimba0 liblivemedia57 libllvm3.9 libllvm3.9:i386 liblouis12 liblwres141 libmagickcore-6.q16-3 libmagickcore-6.q16-3-extra libmagickwand-6.q16-3 libmikmod3
  libminiupnpc10 libmpfr4 libnfs8 libntfs-3g871 libokularcore7 libopencv-core2.4v5 libopencv-imgproc2.4v5 libopenexr22 liborcus-0.11-0 libpackagekitqt5-0 libpcre16-3 libperl5.24 libpodofo0.9.4 libpoppler-qt4-4 libpoppler64 libpostproc54 libprotobuf-lite10 libprotobuf10
  libpthread-stubs0-dev libpython3.5 libpython3.5-minimal libpython3.5-stdlib libqaccessibilityclient0 libqca2-plugin-ossl libqgsttools-p1 libqmobipocket1 libqt4-help libqt5clucene5 libqt5multimediaquick-p5 libqt5quickparticles5 libqt5quicktest5 libraw15
  libreoffice-kde libreoffice-pdfimport libruby2.3 libsac-java-gcj libsdl-mixer1.2 libsdl-net1.2 libsndio6.1:i386 libsodium18 libsoprano4 libsox2 libspeexdsp1:i386 libspice-server1 libstdc++-6-dev libsuitesparseconfig4 libswresample2:i386 libswscale4 libtomcrypt0
  libtracker-sparql-1.0-0 libtxc-dxtn-s2tc libubertooth0 libusbredirparser1 libva-drm1:i386 libva-wayland1 libva-x11-1:i386 libva1:i386 libvdeplug2 libvpx4:i386 libvte-2.91-0 libvte-2.91-common libwayland-egl1-mesa libwebpmux2:i386 libx11-dev libx11-doc libx11-xcb-dev
  libx264-148:i386 libx265-95:i386 libxau-dev libxcb-dri2-0-dev libxcb-dri3-dev libxcb-glx0-dev libxcb-present-dev libxcb-randr0-dev libxcb-render0-dev libxcb-shape0-dev libxcb-sync-dev libxcb-xfixes0-dev libxcb1-dev libxdamage-dev libxdmcp-dev libxen-4.8 libxencall1
  libxendevicemodel1 libxenevtchn1 libxenforeignmemory1 libxengnttab1 libxenmisc4.11 libxenstore3.0 libxentoolcore1 libxentoollog1 libxerces-c3.1 libxext-dev libxfixes-dev libxfont1 libxml++2.6-2v5 libxshmfence-dev libxxf86vm-dev linux-headers-4.9.0-7-amd64
  linux-headers-4.9.0-7-common manpages-fr manpages-fr-extra mate-icon-theme mesa-common-dev musescore-soundfont-gm nvidia-legacy-390xx-alternative openbios-ppc openbios-sparc openhackware python-beautifulsoup python-cairo python-gobject-2 python-gtk2 python3-distutils
  python3-lib2to3 python3.5 python3.5-minimal qemu-efi qemu-efi-aarch64 qemu-slof qemu-system qemu-system-arm qemu-system-common qemu-system-data qemu-system-gui qemu-system-mips qemu-system-misc qemu-system-ppc qemu-system-sparc qemu-system-x86 qemu-user
  qemu-user-binfmt qemu-utils qml-module-org-kde-extensionplugin qml-module-org-kde-kirigami qtbase5-dev-tools rename rsync ruby2.3 seabios soprano-daemon tcpd wesnoth-1.12 wesnoth-1.12-aoi wesnoth-1.12-core wesnoth-1.12-data wesnoth-1.12-did wesnoth-1.12-dm
  wesnoth-1.12-dw wesnoth-1.12-ei wesnoth-1.12-httt wesnoth-1.12-l wesnoth-1.12-low wesnoth-1.12-music wesnoth-1.12-nr wesnoth-1.12-sof wesnoth-1.12-sotbe wesnoth-1.12-thot wesnoth-1.12-trow wesnoth-1.12-tsg wesnoth-1.12-ttb wesnoth-1.12-utbs x11proto-core-dev
  x11proto-damage-dev x11proto-dev x11proto-dri2-dev x11proto-fixes-dev x11proto-gl-dev x11proto-input-dev x11proto-kb-dev x11proto-xext-dev x11proto-xf86vidmode-dev xorg-sgml-doctools xtrans-dev

Quoting: j3kylWhy don't you switch to SID? Testing might have packages issue for months while SID won't take 2 or 3 days.

SID as ArchLinux has bleeding edge packages is as stable as the late one.

Some here are confused as to the purpose of Testing, it IS for testing. But SID is a rolling-release distro that is meant to all-purpose!

Anyway, even on SID/Testing you will need to use Wine staging repos because Debian Wine packages ain't compiled with gaming flags.

I had to do that months ago as I played a lot with Wine/Steam games!

I left Arch exactly because of that.
I got sick of bleeding edge stuff breaking.
Yes it was an easy fix and yes it would get updated, but it still managed to hit me at my most inconvenient times.

Struggling a bit with the wine source
Trying this does not work
deb https://dl.winehq.org/wine-builds/debian/ testing main

And it seems the files do exist for testing
https://dl.winehq.org/wine-builds/debian/dists/testing/

Update 2
Seems i goofed up and did not remove the old wine install
root@debian:/home/razing# dpkg-query -l | grep wine
ii  fonts-wine                                                       3.0.3-2                                  all          Windows API implementation - fonts
ii  libkwineffects11                                                 4:5.13.5-1+b1                            amd64        KDE window manager effects library
ii  libwine:amd64                                                    3.0.3-2                                  amd64        Windows API implementation - library
ii  libwine:i386                                                     3.0.3-2                                  i386         Windows API implementation - library
ii  wine-stable                                                      3.0.3~stretch                            amd64        WINE Is Not An Emulator - runs MS Windows programs
ii  wine-stable-amd64                                                3.0.3~stretch                            amd64        WINE Is Not An Emulator - runs MS Windows programs
ii  wine-stable-i386:i386                                            3.0.3~stretch                            i386         WINE Is Not An Emulator - runs MS Windows programs
ii  wine32:i386                                                      3.0.3-2                                  i386         Windows API implementation - 32-bit binary loader
ii  wine64                                                           3.0.3-2                                  amd64        Windows API implementation - 64-bit binary loader
ii  winehq-stable                                                    3.0.3~stretch                            amd64        WINE Is Not An Emulator - runs MS Windows programs
ii  winetricks                                                       0.0+20180815-1                           all          package manager for Wine to install software easily
And trying to remove it now throws an error
The following packages will be REMOVED:
  wine-stable winehq-stable winetricks
0 upgraded, 0 newly installed, 3 to remove and 0 not upgraded.
After this operation, 7,225 kB disk space will be freed.
Do you want to continue? [Y/n] Y
dpkg: warning: 'ldconfig' not found in PATH or not executable
dpkg: warning: 'start-stop-daemon' not found in PATH or not executable
dpkg: error: 2 expected programs not found in PATH or not executable
Note: root's PATH should usually contain /usr/local/sbin, /usr/sbin and /sbin
E: Sub-process /usr/bin/dpkg returned an error code (2)

Update 3
Debian irc saved me
Seems the path issue was from doing "su" instead of "su -" to get to root
Still need to fix the wine repo

Update 4
After opening my STUPID eyes, i realized i forgot to do an apt-update after adding the wine testing to my sources list.

Quoting: razing32Update 4
After opening my STUPID eyes, i realized i forgot to do an apt-update after adding the wine testing to my sources list.

yes that should be number one debian rule. Always do apt update. And rule two, see rule one and do that first. :P

Quoting: razing32Can someone share their /apt-list for testing ?
I am guessing once i do a apt-get update and apt-get upgrade and maybe an apt dist-upgrade i will be on testing ?

This is mine:

/etc/apt/sources.list
deb http://ftp.us.debian.org/debian/ testing main contrib non-free
deb-src http://ftp.us.debian.org/debian/ testing main contrib non-free

deb http://security.debian.org/debian-security testing/updates main contrib non-free
deb-src http://security.debian.org/debian-security testing/updates main contrib non-free

#deb http://debug.mirrors.debian.org/debian-debug/ testing-debug main contrib non-free

/etc/apt/sources.list.d/wine.list
deb https://dl.winehq.org/wine-builds/debian/ testing main