Test that the wrapper for Linear problem and NonlinearProblem give the same result.

Compile a form without an associated mesh and assemble a form over a sequence of meshes.

Test assembly of complex matrices and vectors.

Solve a positive definite helmholtz problem and verify solution with the method of manufactured solutions.

Compute distance from subset of cells in a mesh to a point inside the mesh.

Test that setting a dirichletbc with a constant yields the same result as setting it with a function.

Test construction from constant values.

Test that anonymous Timer works with context manager.

Test that named Timer works as context manager.

Interval mesh embedded in gdim-dimensional space has correct tdim and gdim.

Test creation of CSR matrix with specified types.

Rectangle mesh embedded in gdim-dimensional space has correct tdim and gdim.

Test create_sub_index_map where the ownership of indices is not preserved in the submap. The diagram illustrates the case with four processes.

Create mesh of unit cube.

Create mesh of unit square.

Test creation of a distributed vector.

Test that curl is consistent for different cell permutations of a tetrahedron.

Test numba assembler for a bilinear form.

Test interpolation into an element with a value size that uses an identity map.

Test demo scripts in serial.

Test demo scripts in parallel using MPI.

Test the function derivative_block.

Find point owners (ranks and cells) using bounding box trees + global communication and compare to point ownership data results.

Test that we can mix DG-0 and other Lagrange functions.

Compute discrete curl operator, with verification using Expression.

Test that discrete curl function raises for gdim != 3.

Test that discrete curl function raises for incorrect spaces.

Test discrete interpolation operator.

Test assembly with multiple disjoint submeshes in same variational form.

Checks that the vectors in div conforming spaces on a tetrahedron are correctly oriented.

Checks that the vectors in div conforming spaces on a triangle are correctly oriented.

Tests that assembling inner(u, div(w)) * dx, where u is from a "DQ" space and w is from an "RTCF" space, gives the same matrix for square and

Tests that assembling inner(1, div(w)) * dx, where w is from an "RTCF" space, gives the same matrix for square and trapezoidal elements. This

Checks that dofs on shared triangle edges match up.

Creates the edge skeleton mesh of a regular unit square/cube and checks for correct connectivity information. The edge skeleton mesh is the m

Test that mesh independent compilation handles the re-ordering of coefficients and constants when removed through differentiation.

Test entities_to_geometry with empty entity list.

Test that dofmap with no dofs on a rank can be collapsed.

Construction of mesh where some ranks are empty.

Test VTXWriter on mesh where some ranks have no cells.

Test that num entity dofs is correctly wrapped to dolfinx::DofMap.

Test that eval is correct for a symmetric 3x3 2-tensor is correct.

Test extraction on unique function spaces for rows and columns of a block system.

Compute facet area of cell. UFL currently only supports affine cells for this computation.

Test that the integral of a function over a facet is correct.