
/* $XConsortium: emptystr1.pi,v 5.2 94/04/17 20:47:00 rws Exp $ */

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## emptystr1.pi - test pempty_struct() on a non-existent structure,
## a closed structure, and an open structure (with and without contents).
## Verify with pinq_struct_status().

tbegintest("emptystr1", "test function EMPTY STRUCTURE");

source macro.pi		/* generic macros */
source strmacro.pi	/* macros specific to structure content area */
source apimacro.pi	/* macros isolating api-specific functionality */

@WS1 = 1
points1 = IA_Ppoint(3, 0.3,0.95, 0.7,0.5, 0.1,0.5);
points2 = IA_Ppoint(3, 0.1,0.5, 0.1,0.0, 0.8,0.1);
lines1 = I_Ppoint_list(3, points1);
lines2 = I_Ppoint_list(3, points2);

# Set up phigs
i_open_phigs(NULL,PDEF_MEM_SIZE);

# test pempty_struct() on a non-existent structure before workstation opened;
# an empty structure should be created.
pempty_struct(1);
im_confirm_struct_status(1, PSTRUCT_STATUS_EMPTY, "failed: previously non-existent structure should have status PSTRUCT_STATUS_EMPTY, not %d, after pempty_struct()\n");

# open a workstation
i_open_ws(@WS1);

# Testing a closed structure: put some things in a struct, close it,
# call pempty_struct().
popen_struct(2);
pset_line_colr_ind(3);
ppolyline(&lines1);
pclose_struct();
pempty_struct(2);
im_confirm_struct_status(2, PSTRUCT_STATUS_EMPTY, "failed: closed structure should have been emptied, has status %d\n");

# Testing an empty open structure
popen_struct(3);
pempty_struct(3);
im_confirm_struct_status(3, PSTRUCT_STATUS_EMPTY, "failed: empty open structure should have stayed empty, has status %d\n");
pclose_struct();

# Testing a non-empty open structure: confirm with pinq_struct_status()
# and with pinq_elem_ptr().
popen_struct(4);
pset_line_colr_ind(2);
ppolyline(&lines2);
pempty_struct(4);
im_confirm_struct_status(4, PSTRUCT_STATUS_EMPTY, "failed: non-empty open structure should have been emptied, has status %d\n");
im_confirm_elemptr(0, "failed: element pointer %d should have been reset to 0 by pempty_struct() on open structure\n");

tendtest();
