fix tests and format

Author: oscardssmith

test/common_interface/ida.jl

@@ -113,7 +113,7 @@ isapprox(only(sol.u[begin]), 1, rtol = 1e-3)
 # test that solve produced the right answer.
 isapprox(only(sol.u[end]), exp(1), rtol = 1e-3)
 
-f_noconverge(out, du, u, p, t) = out .= [du[1]+u[1]/(t-1)]
-prob= DAEProblem(f, [1.], [1.], (0,2); differential_vars=[true])
+f_noconverge(out, du, u, p, t) = out .= [du[1] + u[1] / (t - 1)]
+prob = DAEProblem(f_noconverge, [1.0], [1.0], (0, 2); differential_vars = [true])
 sol = solve(prob, IDA())
-@test !(sol.retcode in (ReturnCode.Success, ReturnCode.MaxIters)
+@test !(sol.retcode in (ReturnCode.Success, ReturnCode.MaxIters))