ifp: Add tests for non positive gap.

Signed-off-by: Christian COSTA <[email protected]>

Author: titan73

src/ifp/test/init_floorplan_gap.ok

@@ -1,5 +1,9 @@
 [INFO ODB-0227] LEF file: Nangate45/Nangate45.lef, created 22 layers, 27 vias, 135 library cells
 [INFO ODB-0227] LEF file: init_floorplan_gap.lef
+[ERROR IFP-0036] Gap must be positive (-2000)
+[ERROR IFP-0036] Gap must be positive (0)
+[ERROR IFP-0036] Gap must be positive (-2000)
+[ERROR IFP-0036] Gap must be positive (0)
 [INFO IFP-0001] Added 71 rows of 526 site FreePDK45_38x28_10R_NP_162NW_34O.
 [INFO IFP-0001] Added 35 rows of 526 site FreePDK45_38x28_10R_NP_162NW_34O_DoubleHeight.
 No differences found.

src/ifp/test/init_floorplan_gap.py

@@ -23,9 +23,33 @@
 floorplan = design.getFloorplan()
 site = floorplan.findSite("FreePDK45_38x28_10R_NP_162NW_34O")
 additional_site = floorplan.findSite("FreePDK45_38x28_10R_NP_162NW_34O_DoubleHeight")
+
+# Test non positive gap
+try:
+    floorplan.initFloorplan(
+        die, core, site, [additional_site], "NONE", [], design.micronToDBU(-1)
+    )
+except Exception:
+    pass
+try:
+    floorplan.initFloorplan(
+        die, core, site, [additional_site], "NONE", [], design.micronToDBU(0)
+    )
+except Exception:
+    pass
+try:
+    floorplan.makeRows(core, site, [], "NONE", [], design.micronToDBU(-1))
+except Exception:
+    pass
+try:
+    floorplan.makeRows(core, site, [], "NONE", [], design.micronToDBU(0))
+except Exception:
+    pass
+
 floorplan.initFloorplan(
     die, core, site, [additional_site], "NONE", [], design.micronToDBU(2)
 )
+
 def_file = helpers.make_result_file("init_floorplan_gap.def")
 design.writeDef(def_file)
 helpers.diff_files("init_floorplan_gap.defok", def_file)

src/ifp/test/init_floorplan_gap.tcl

@@ -5,9 +5,37 @@ read_lef init_floorplan_gap.lef
 read_liberty Nangate45/Nangate45_typ.lib
 read_verilog reg1.v
 link_design top
+
+set area {0 0 100 100}
+
 create_voltage_domain TEMP_ANALOG -area {34 34 66 66}
-initialize_floorplan -die_area {0 0 100 100} \
-  -core_area {0 0 100 100} \
+
+# Test non positive gap
+catch {
+  initialize_floorplan -die_area $area \
+    -core_area $area \
+    -site FreePDK45_38x28_10R_NP_162NW_34O \
+    -gap -1
+}
+catch {
+  initialize_floorplan -die_area $area \
+    -core_area $area \
+    -site FreePDK45_38x28_10R_NP_162NW_34O \
+    -gap 0
+}
+catch {
+  make_rows -core_area $area \
+    -site FreePDK45_38x28_10R_NP_162NW_34O \
+    -gap -1
+}
+catch {
+  make_rows -core_area $area \
+    -site FreePDK45_38x28_10R_NP_162NW_34O \
+    -gap 0
+}
+
+initialize_floorplan -die_area $area \
+  -core_area $area \
   -site FreePDK45_38x28_10R_NP_162NW_34O \
   -additional_sites FreePDK45_38x28_10R_NP_162NW_34O_DoubleHeight \
   -gap 2