Making the following package dependency tree:


Legend:
    -------------
    req = Requires
    pro = Provides
    rec = Recommends
    sup = Supplements
    sug = Suggests
    enh = Enhances
    -------------

            +--------+
    v--req--+ Parent +--req--v
    |       +--------+       |
    |                        |
    v---------+    +---------v
    | Child A |    | Child B |
    +---------+    +---------+

Use the following command to test:

    yum install Parent --assumeno --disablerepo=* --repofrompath=example1,http://people.redhat.com/kwalker/weakdeps/example1/

Output:

    # yum install Parent --assumeno --disablerepo=* --repofrompath=example1,http://people.redhat.com/kwalker/weakdeps/example1/
    Updating Subscription Management repositories.
    Added example1 repo from http://people.redhat.com/kwalker/weakdeps/example1/
    Last metadata expiration check: 0:00:36 ago on Tue 19 Feb 2019 12:57:47 PM EST.
    Dependencies resolved.
    =======================================================================================================================
     Package                     Arch                        Version                       Repository                 Size
    =======================================================================================================================
    Installing:
     Parent                      x86_64                      0.1-1                         example1                  6.0 k
    Installing dependencies:
     ChildA                      x86_64                      0.1-1                         example1                  6.0 k
     ChildB                      x86_64                      0.1-1                         example1                  6.0 k
    
    Transaction Summary
    =======================================================================================================================
    Install  3 Packages
    
    Total download size: 18 k
    Installed size: 0
    Operation aborted.