Expand to use pytest.

Author: whitequark

.gitignore

@@ -8,5 +8,8 @@ __pycache__/
 /.pdm-python
 /.venv
 
+# pytest
+/.pytest_cache
+
 # Amaranth
 /build*

pdm.lock

@@ -5,17 +5,22 @@ description = "Template for a generic FPGA project using Amaranth"
 
 requires-python = "~=3.8"
 dependencies = [
-    "amaranth @ git+https://github.com/amaranth-lang/amaranth",
-    "amaranth-yosys",
+    "amaranth[builtin-yosys] @ git+https://github.com/amaranth-lang/amaranth",
     "amaranth-boards @ git+https://github.com/amaranth-lang/amaranth-boards",
     "yowasp-yosys",
     "yowasp-nextpnr-ice40",
     "yowasp-nextpnr-ecp5",
     "yowasp-nextpnr-gowin",
 ]
 
+[tool.pdm.dev-dependencies]
+test = [
+    "pytest"
+]
+
 [tool.pdm.scripts]
 _.env_file = ".env.toolchain"
-build_ice40 = {call = "amaranth_template_fpga:build_ice40()"}
-build_ecp5 = {call = "amaranth_template_fpga:build_ecp5()"}
-build_gowin = {call = "amaranth_template_fpga:build_gowin()"}
+test = { cmd = "pytest" }
+build_ice40 = { call = "amaranth_template_fpga:build_ice40()" }
+build_ecp5  = { call = "amaranth_template_fpga:build_ecp5()"  }
+build_gowin = { call = "amaranth_template_fpga:build_gowin()" }

pyproject.toml

@@ -0,0 +1,29 @@
+from amaranth import *
+
+from amaranth_boards.icestick import ICEStickPlatform
+from amaranth_boards.versa_ecp5 import VersaECP5Platform
+from amaranth_boards.tang_nano import TangNanoPlatform
+
+from .blinky import Blinky
+
+
+class Toplevel(Elaboratable):
+    def elaborate(self, platform):
+        m = Module()
+
+        m.submodules.blinky = blinky = Blinky(frequency=platform.default_clk_frequency)
+        m.d.comb += platform.request("led", 0).o.eq(blinky.led)
+
+        return m
+
+
+def build_ice40():
+    ICEStickPlatform().build(Toplevel())
+
+
+def build_ecp5():
+    VersaECP5Platform().build(Toplevel())
+
+
+def build_gowin():
+    TangNanoPlatform().build(Toplevel())