  We consider tests of Leggett-Garg's macrorealism and of macroscopic local
realism, where for spacelike separated measurements the assumption of
macroscopic noninvasive measurability is justified by that of macroscopic
locality. We give a mapping between the Bell and Leggett-Garg experiments for
microscopic qubits based on spin $1/2$ eigenstates and gedanken experiments for
macroscopic qubits based on two macroscopically distinct coherent states (cat
states). In this mapping, the unitary rotation of the Stern-Gerlach analyzer is
realized by an interaction $H=\Omega\hat{n}^{4}$ where $\hat{n}$ is the number
of quanta. By adjusting the time of interaction, one alters the measurement
setting. We thus predict violations of Leggett-Garg and Bell inequalities in a
macroscopic regime where coarse-grained measurements $\hat{M}$ need only
discriminate between two macroscopically distinct coherent states. To interpret
the violations, we distinguish between subtly different definitions of
macroscopic realism. Deterministic macroscopic local realism (dMR) assumes a
definite outcome for the measurement $\hat{M}$ prior to the unitary rotation
created by the analyser, and is negated by the violations. Weak macroscopic
realism (wMR) assumes a definite outcome for systems prepared in a
superposition $\psi_{pointer}$ of two macroscopically-distinct eigenstates of
$\hat{M}$, after the unitary rotation. We find that wMR can be viewed as
consistent with the violations. A model is presented, in which wMR holds, and
for which the macroscopic violations emerge over the course of the unitary
dynamics. Finally, we point out an EPR-type paradox, that a weak
macro-realistic description for the system prior to the measurement $\hat{M}$
is inconsistent with the completeness of quantum mechanics.
