Merge pull request #243 from tscircuit/use-led

Add useLed hook

lib/hooks/use-led.tsx

@@ -0,0 +1,7 @@
+import { ledPins, type LedProps } from "@tscircuit/props"
+import { createUseComponent } from "./create-use-component"
+
+export const useLed = createUseComponent(
+  (props: LedProps) => <led {...props} />,
+  ledPins,
+)

lib/index.ts

@@ -5,6 +5,7 @@ export * from "./hooks/create-use-component"
 export * from "./hooks/use-capacitor"
 export * from "./hooks/use-chip"
 export * from "./hooks/use-diode"
+export * from "./hooks/use-led"
 export * from "./hooks/use-resistor"
 
 import "./register-catalogue"

tests/hooks/use-led.test.tsx

@@ -0,0 +1,31 @@
+import { test, expect } from "bun:test"
+import { useLed } from "lib/hooks/use-led"
+import { Circuit } from "lib/Circuit"
+
+test("useLed hook creates component with correct props and traces", () => {
+  const circuit = new Circuit()
+
+  const LED1 = useLed("LED1", { footprint: "1206" })
+  const LED2 = useLed("LED2", { footprint: "0603" })
+
+  circuit.add(
+    <board width="10mm" height="10mm">
+      <LED1 anode="net.VCC" cathode="net.GND" />
+      <LED2 pos={LED1.anode} neg="net.GND" />
+    </board>,
+  )
+
+  circuit.render()
+
+  // Check if LED components were created correctly
+  const leds = circuit.selectAll("led")
+  expect(leds.length).toBe(2)
+  expect(leds[0].props.name).toBe("LED1")
+  expect(leds[0].props.footprint).toBe("1206")
+  expect(leds[1].props.name).toBe("LED2") 
+  expect(leds[1].props.footprint).toBe("0603")
+
+  // Check if traces were created correctly
+  const traces = circuit.selectAll("trace")
+  expect(traces.length).toBe(4)
+})