AD1D test doesn't work
*Created originally on Bitbucket by [avmo (Ashwin Vishnu)](https://bitbucket.org/%7Bbd72905e-cf99-4847-84c2-998104370f6e%7D/)* ```python ~/s/gfdyn ❯❯❯ fluidsim-test -m fluidsim.solvers.ad1d.test_solver (gfdyn) Fluidsim guesses that it is tested so it loads the Agg Matplotlib backend. Compilation of jit functions disabled. test_init (test_solver.TestInitAD1D) Only test the initialization ... ok test_simul (test_solver.TestSolverAD1D) ... ERROR ====================================================================== ERROR: test_simul (test_solver.TestSolverAD1D) ---------------------------------------------------------------------- Traceback (most recent call last): File "/home/avmo/src/gfdyn/fluidsim/fluidsim/solvers/ad1d/test_solver.py", line 87, in test_simul sim.output.phys_fields.plot(field="s", time=10) File "/home/avmo/src/gfdyn/fluidsim/fluidsim/base/output/phys_fields1d.py", line 61, in plot field = self.get_field_to_plot(key=key_field, time=time) File "/home/avmo/src/gfdyn/fluidsim/fluidsim/base/output/phys_fields.py", line 276, in get_field_to_plot interpolate_time=interpolate_time, File "/home/avmo/src/gfdyn/fluidsim/fluidsim/base/output/phys_fields.py", line 401, in get_field_to_plot if self.times.min() > time > self.times.max(): File "/usr/lib/python3.7/site-packages/numpy/core/_methods.py", line 32, in _amin return umr_minimum(a, axis, None, out, keepdims, initial) ValueError: zero-size array to reduction operation minimum which has no identity ---------------------------------------------------------------------- Ran 2 tests in 1.840s FAILED (errors=1) ``` Needs numpy==1.16.0 to reproduce?
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