feat: publish the Sandwich Hime source preview

Signed-off-by: Cole Speelman <gamertan@noreply.localhost>

internal/devserver/config_test.go

@@ -0,0 +1,69 @@
+// SPDX-License-Identifier: AGPL-3.0-only
+
+package devserver
+
+import (
+	"os"
+	"path/filepath"
+	"strings"
+	"testing"
+)
+
+func TestLoadConfigDefaultsAndRejectsUnknownFields(t *testing.T) {
+	t.Parallel()
+	path := filepath.Join(t.TempDir(), "himesan.json")
+	if err := os.WriteFile(path, []byte(`{"version":1,"proxyAddress":"[::1]:0"}`), 0o600); err != nil {
+		t.Fatal(err)
+	}
+	cfg, err := LoadConfig(path)
+	if err != nil {
+		t.Fatalf("LoadConfig() error = %v", err)
+	}
+	if cfg.GoPackage != "." || cfg.ListenAddressEnv != defaultListenAddressEnv || cfg.HealthPath != "/" {
+		t.Fatalf("LoadConfig() did not apply defaults: %#v", cfg)
+	}
+
+	if err := os.WriteFile(path, []byte(`{"version":1,"mystery":true}`), 0o600); err != nil {
+		t.Fatal(err)
+	}
+	if _, err := LoadConfig(path); err == nil || !strings.Contains(err.Error(), "unknown field") {
+		t.Fatalf("LoadConfig() unknown field error = %v", err)
+	}
+
+	if err := os.WriteFile(path, []byte(`{"proxyAddress":"127.0.0.1:0"}`), 0o600); err != nil {
+		t.Fatal(err)
+	}
+	if _, err := LoadConfig(path); err == nil || !strings.Contains(err.Error(), "version") {
+		t.Fatalf("LoadConfig() missing version error = %v", err)
+	}
+}
+
+func TestConfigValidation(t *testing.T) {
+	t.Parallel()
+	tests := []struct {
+		name   string
+		mutate func(*Config)
+	}{
+		{"public proxy", func(c *Config) { c.ProxyAddress = "0.0.0.0:7331" }},
+		{"hostname proxy", func(c *Config) { c.ProxyAddress = "localhost:7331" }},
+		{"bad port", func(c *Config) { c.ProxyAddress = "127.0.0.1:http" }},
+		{"bad environment", func(c *Config) { c.ListenAddressEnv = "bad-name" }},
+		{"health query", func(c *Config) { c.HealthPath = "/health?full=1" }},
+		{"empty source roots", func(c *Config) { c.SourceRoots = nil }},
+		{"nul argument", func(c *Config) { c.AppArgs = []string{"a\x00b"} }},
+	}
+	for _, test := range tests {
+		t.Run(test.name, func(t *testing.T) {
+			cfg := DefaultConfig()
+			test.mutate(&cfg)
+			if err := cfg.Validate(); err == nil {
+				t.Fatal("Validate() unexpectedly succeeded")
+			}
+		})
+	}
+	for _, address := range []string{"127.0.0.1:0", "127.12.3.4:65535", "[::1]:7331"} {
+		if err := ValidateLoopbackAddress(address); err != nil {
+			t.Errorf("ValidateLoopbackAddress(%q) = %v", address, err)
+		}
+	}
+}