Introspection: Add test for get_nets Signed-off-by: Tomasz Michalak <tmichalak@antmicro.com>

diff --git a/design_introspection-plugin/tests/get_nets/get_nets.golden.txt b/design_introspection-plugin/tests/get_nets/get_nets.golden.txt
new file mode 100644
index 0000000..24c2e2f
--- /dev/null
+++ b/design_introspection-plugin/tests/get_nets/get_nets.golden.txt

@@ -0,0 +1,10 @@
+*inter* nets quiet
+bottom_intermediate_inst.I bottom_intermediate_inst.O bottom_intermediate_inst.bottom_intermediate_wire inter_wire inter_wire_2
+*inter* nets
+bottom_intermediate_inst.I bottom_intermediate_inst.O bottom_intermediate_inst.bottom_intermediate_wire inter_wire inter_wire_2
+*inter* nets with invalid filter expression
+bottom_intermediate_inst.I bottom_intermediate_inst.O bottom_intermediate_inst.bottom_intermediate_wire inter_wire inter_wire_2
+Filtered nets
+clk
+All nets
+{$abc$2135$aiger2134$38} {$abc$2135$aiger2134$42} {$abc$2135$aiger2134$43} {$abc$2135$aiger2134$48} {$abc$2135$aiger2134$49} {$abc$2135$aiger2134$54} {$abc$2135$aiger2134$55} {$abc$2135$aiger2134$60} {$abc$2135$aiger2134$61} {$abc$2135$aiger2134$66} {$abc$2135$aiger2134$67} {$abc$2135$aiger2134$72} {$abc$2135$aiger2134$73} {$abc$2135$aiger2134$76} {$abc$2135$aiger2134$77} {$abc$2135$aiger2134$78} {$abc$2135$iopadmap$clk} {$auto$alumacc.cc:485:replace_alu$1469.O} LD6 LD7 LD8 LD9 bottom_inst.I bottom_inst.O bottom_inst.OB bottom_intermediate_inst.I bottom_intermediate_inst.O bottom_intermediate_inst.bottom_intermediate_wire clk counter inter_wire inter_wire_2 led out_a out_b signal_n signal_p

diff --git a/design_introspection-plugin/tests/get_nets/get_nets.tcl b/design_introspection-plugin/tests/get_nets/get_nets.tcl
new file mode 100644
index 0000000..c4fe329
--- /dev/null
+++ b/design_introspection-plugin/tests/get_nets/get_nets.tcl

@@ -0,0 +1,33 @@
+yosys -import
+plugin -i design_introspection
+#Import the commands from the plugins to the tcl interpreter
+yosys -import
+
+read_verilog get_nets.v
+# Some of symbiflow expects eblifs with only one module.
+synth_xilinx -vpr -flatten -abc9 -nosrl -noclkbuf -nodsp
+
+
+set fp [open "get_nets.txt" "w"]
+
+puts "\n*inter* nets quiet"
+puts $fp "*inter* nets quiet"
+puts $fp [get_nets -quiet *inter*]
+
+puts "\n*inter* nets"
+puts $fp "*inter* nets"
+puts $fp [get_nets *inter*]
+
+puts "\n*inter* nets with invalid filter expression"
+puts $fp "*inter* nets with invalid filter expression"
+puts $fp [get_nets -filter {mr_ff != true} *inter* ]
+
+puts "\nFiltered nets"
+puts $fp "Filtered nets"
+puts $fp [get_nets -filter {mr_ff == true || async_reg == true && dont_touch == true} ]
+
+puts "\nAll nets"
+puts $fp "All nets"
+puts $fp [get_nets]
+
+close $fp

diff --git a/design_introspection-plugin/tests/get_nets/get_nets.v b/design_introspection-plugin/tests/get_nets/get_nets.v
new file mode 100644
index 0000000..d40055b
--- /dev/null
+++ b/design_introspection-plugin/tests/get_nets/get_nets.v

@@ -0,0 +1,75 @@
+module top (
+	(* async_reg = "true", mr_ff = "true", dont_touch = "true" *) input  clk,
+	output [3:0] led,
+	inout out_a,
+	output [1:0] out_b,
+	output signal_p,
+	output signal_n
+);
+
+	wire LD6, LD7, LD8, LD9;
+	wire inter_wire, inter_wire_2;
+	localparam BITS = 1;
+	localparam LOG2DELAY = 25;
+
+	reg [BITS+LOG2DELAY-1:0] counter = 0;
+
+	always @(posedge clk) begin
+		counter <= counter + 1;
+	end
+	assign led[1] = inter_wire;
+	assign inter_wire = inter_wire_2;
+	assign {LD9, LD8, LD7, LD6} = counter >> LOG2DELAY;
+	OBUFTDS OBUFTDS_2(
+		.I(LD6),
+		.O(signal_p),
+		.OB(signal_n),
+		.T(1'b1)
+	);
+	OBUF #(
+		.IOSTANDARD("LVCMOS33"),
+		.SLEW("SLOW")
+	) OBUF_6(.I(LD6), .O(led[0]));
+	OBUF #(
+		.IOSTANDARD("LVCMOS33"),
+		.SLEW("SLOW")
+	) OBUF_7(.I(LD7), .O(inter_wire_2));
+	OBUF #(
+		.IOSTANDARD("LVCMOS33"),
+		.SLEW("SLOW")
+	) OBUF_OUT(.I(LD7), .O(out_a));
+	bottom bottom_inst(.I(LD8), .O(led[2]), .OB(out_b));
+	bottom_intermediate bottom_intermediate_inst(.I(LD9), .O(led[3]));
+endmodule
+
+module bottom_intermediate (
+	input I,
+	output O
+);
+	wire bottom_intermediate_wire;
+	assign O = bottom_intermediate_wire;
+	OBUF #(
+		.IOSTANDARD("LVCMOS33"),
+		.SLEW("SLOW")
+	) OBUF_8(.I(I), .O(bottom_intermediate_wire));
+endmodule
+
+module bottom (
+	input I,
+	output [1:0] OB,
+	output O
+);
+	OBUF #(
+		.IOSTANDARD("LVCMOS33"),
+		.SLEW("SLOW")
+	) OBUF_9(.I(I), .O(O));
+	OBUF #(
+		.IOSTANDARD("LVCMOS33"),
+		.SLEW("SLOW")
+	) OBUF_10(.I(I), .O(OB[0]));
+	OBUF #(
+		.IOSTANDARD("LVCMOS33"),
+		.SLEW("SLOW")
+	) OBUF_11(.I(I), .O(OB[1]));
+endmodule
+