go implementation

go/internal/config/config_test.go

@@ -0,0 +1,127 @@
+package config
+
+import (
+	"os"
+	"testing"
+)
+
+func TestDefault(t *testing.T) {
+	cfg := Default()
+
+	if cfg.Server.Host != "0.0.0.0" {
+		t.Errorf("Expected host 0.0.0.0, got %s", cfg.Server.Host)
+	}
+
+	if cfg.Server.Port != 8080 {
+		t.Errorf("Expected port 8080, got %d", cfg.Server.Port)
+	}
+
+	if cfg.SSL.Enabled {
+		t.Error("Expected SSL to be disabled by default")
+	}
+}
+
+func TestValidate(t *testing.T) {
+	tests := []struct {
+		name    string
+		modify  func(*Config)
+		wantErr bool
+	}{
+		{
+			name:    "valid default config",
+			modify:  func(c *Config) {},
+			wantErr: false,
+		},
+		{
+			name: "invalid port - too low",
+			modify: func(c *Config) {
+				c.Server.Port = 0
+			},
+			wantErr: true,
+		},
+		{
+			name: "invalid port - too high",
+			modify: func(c *Config) {
+				c.Server.Port = 70000
+			},
+			wantErr: true,
+		},
+		{
+			name: "SSL enabled without cert",
+			modify: func(c *Config) {
+				c.SSL.Enabled = true
+				c.SSL.CertFile = ""
+			},
+			wantErr: true,
+		},
+		{
+			name: "SSL enabled without key",
+			modify: func(c *Config) {
+				c.SSL.Enabled = true
+				c.SSL.CertFile = "cert.pem"
+				c.SSL.KeyFile = ""
+			},
+			wantErr: true,
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			cfg := Default()
+			tt.modify(cfg)
+
+			err := cfg.Validate()
+			if (err != nil) != tt.wantErr {
+				t.Errorf("Validate() error = %v, wantErr %v", err, tt.wantErr)
+			}
+		})
+	}
+}
+
+func TestLoad(t *testing.T) {
+	// Create temporary config file
+	content := `
+server:
+  host: 127.0.0.1
+  port: 3000
+
+logging:
+  level: DEBUG
+`
+	tmpfile, err := os.CreateTemp("", "config-*.yaml")
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer os.Remove(tmpfile.Name())
+
+	if _, err := tmpfile.Write([]byte(content)); err != nil {
+		t.Fatal(err)
+	}
+	if err := tmpfile.Close(); err != nil {
+		t.Fatal(err)
+	}
+
+	cfg, err := Load(tmpfile.Name())
+	if err != nil {
+		t.Fatalf("Failed to load config: %v", err)
+	}
+
+	if cfg.Server.Host != "127.0.0.1" {
+		t.Errorf("Expected host 127.0.0.1, got %s", cfg.Server.Host)
+	}
+
+	if cfg.Server.Port != 3000 {
+		t.Errorf("Expected port 3000, got %d", cfg.Server.Port)
+	}
+
+	if cfg.Logging.Level != "DEBUG" {
+		t.Errorf("Expected level DEBUG, got %s", cfg.Logging.Level)
+	}
+}
+
+func TestLoadNotFound(t *testing.T) {
+	_, err := Load("/nonexistent/config.yaml")
+	if err == nil {
+		t.Error("Expected error for non-existent file")
+	}
+}