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We consider tests of Leggett-Garg's macrorealism and of macroscopic localrealism, where for spacelike separated measurements the assumption ofmacroscopic noninvasive measurability is justified by that of macroscopiclocality. We give a mapping between the Bell and Leggett-Garg experiments formicroscopic qubits based on spin $1/2$ eigenstates and gedanken experiments formacroscopic qubits based on two macroscopically distinct coherent states (catstates). In this mapping, the unitary rotation of the Stern-Gerlach analyzer isrealized by an interaction $H=\Omega\hat{n}^{4}$ where $\hat{n}$ is the numberof quanta. By adjusting the time of interaction, one alters the measurementsetting. We thus predict violations of Leggett-Garg and Bell inequalities in amacroscopic regime where coarse-grained measurements $\hat{M}$ need onlydiscriminate between two macroscopically distinct coherent states. To interpretthe violations, we distinguish between subtly different definitions ofmacroscopic realism. Deterministic macroscopic local realism (dMR) assumes adefinite outcome for the measurement $\hat{M}$ prior to the unitary rotationcreated by the analyser, and is negated by the violations. Weak macroscopicrealism (wMR) assumes a definite outcome for systems prepared in asuperposition $\psi_{pointer}$ of two macroscopically-distinct eigenstates of$\hat{M}$, after the unitary rotation. We find that wMR can be viewed asconsistent with the violations. A model is presented, in which wMR holds, andfor which the macroscopic violations emerge over the course of the unitarydynamics. Finally, we point out an EPR-type paradox, that a weakmacro-realistic description for the system prior to the measurement $\hat{M}$is inconsistent with the completeness of quantum mechanics.

Bipartite Leggett-Garg and macroscopic Bell inequality violations using cat states: distinguishing weak and deterministic macroscopic realism