fix: check for panics on page registration. Fix header append bug: was appending multiple ctx_id to the header; feat: handle complex signal init values as json; add tests; other small improvemnts

signal_test.go

@@ -0,0 +1,64 @@
+package via
+
+import (
+	//	"net/http/httptest"
+	"testing"
+
+	"github.com/go-via/via/h"
+	"github.com/stretchr/testify/assert"
+)
+
+func TestSignalReturnAsString(t *testing.T) {
+	testcases := []struct {
+		given    any
+		expected string
+	}{
+		{"test", "test"},
+		{"another", "another"},
+		{1, "1"},
+		{-99, "-99"},
+		{1.1, "1.1"},
+		{-34.345, "-34.345"},
+		{true, "true"},
+		{false, "false"},
+	}
+
+	for _, testcase := range testcases {
+		var sig *signal
+		v := New()
+		v.Page("/", func(c *Context) {
+			c.View(func() h.H { return nil })
+			sig = c.Signal(testcase.given)
+		})
+
+		assert.Equal(t, testcase.expected, sig.String())
+
+	}
+}
+
+func TestSignalReturnAsStringComplexTypes(t *testing.T) {
+	testcases := []struct {
+		given    any
+		expected string
+	}{
+		{[]string{"test"}, `["test"]`},
+		{[]int{1, 2}, "[1, 2]"},
+		{struct{ Val string }{"test"}, `{"Val": "test"}`},
+		{struct {
+			Num        int
+			IsPositive bool
+		}{1, true}, `{"Num": 1, "IsPositive": true}`},
+	}
+
+	for _, testcase := range testcases {
+		var sig *signal
+		v := New()
+		v.Page("/", func(c *Context) {
+			c.View(func() h.H { return nil })
+			sig = c.Signal(testcase.given)
+		})
+
+		assert.JSONEq(t, testcase.expected, sig.String())
+
+	}
+}