Added unit test for mesh subroutines.

src/tests/Makefile

@@ -21,7 +21,7 @@ all: $(executables)
 $(executables): $(test_objects) $(objects)
 	$(F90) $(LDFLAGS) $@.o $(objects) -o $@
 clean:
-	@rm -f *.o *.mod $(tests)
+	@rm -f *.o *.mod $(executables)
 neat:
 	@rm -f *.o *.mod
 

src/tests/test_mesh.f90

@@ -0,0 +1,67 @@
+program test_mesh
+
+  use mesh, only: mesh_indices_to_bin, bin_to_mesh_indices
+  use mesh_header, only: StructuredMesh
+
+  implicit none
+
+  integer              :: i, j, k
+  integer              :: x, y, z
+  integer              :: ijk(3), ijk_new(3)
+  integer              :: bin, bin_new
+  integer, parameter   :: n = 3
+  real(8)              :: xyz(3)
+  logical              :: passed
+  type(StructuredMesh), pointer :: m => null()
+
+  x = 21
+  y = 16
+  z = 52
+
+  allocate(m)
+  m % n_dimension = n
+  allocate(m % dimension(n))
+  m % dimension = (/ x, y, z /)
+
+  passed = .true.
+  write(*,'(A)', ADVANCE='no') "Testing ijk --> bin:"
+  do i = 1, x
+     do j = 1, y
+        do k = 1, z
+           ijk = (/ i, j, k /)
+           bin = mesh_indices_to_bin(m, ijk)
+           call bin_to_mesh_indices(m, bin, ijk_new)
+
+           ! Check to make sure new indices match old
+           if (any(ijk /= ijk_new)) passed = .false.
+        end do
+     end do
+  end do
+  call write_result(passed)
+
+  passed = .true.
+  write(*,'(A)', ADVANCE='no') "Testing bin --> ijk:"
+  do bin = 1, product(m % dimension)
+     call bin_to_mesh_indices(m, bin, ijk)
+     bin_new = mesh_indices_to_bin(m, ijk)
+
+     ! Check to make sure new bin matches old
+     if (bin_new /= bin) passed = .false.
+  end do
+  call write_result(passed)
+
+contains
+
+  subroutine write_result(passed)
+
+    logical, intent(in) :: passed
+
+    if (passed) then
+       write (*,'(5X,A)') char(27) // '[32mPASSED' // char(27) // '[30m'
+    else
+       write (*,'(5X,A)') char(27) // '[31mFAILED' // char(27) // '[30m'
+    end if
+
+  end subroutine write_result
+
+end program test_mesh