feat: Phase 1 — config, auth, OAuth2 PKCE, CLI scaffold, token store

internal/config/config_test.go

@@ -0,0 +1,73 @@
+package config
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestLoadDefaults(t *testing.T) {
+	cfg, err := Load("", "")
+	require.NoError(t, err)
+	assert.Equal(t, "GoCalGoo", cfg.App.Name)
+	assert.Equal(t, 53682, cfg.OAuth.DefaultPort)
+	assert.Equal(t, "primary", cfg.Google.DefaultCalendarID)
+	assert.Equal(t, 8080, cfg.Server.Port)
+	assert.NotEmpty(t, cfg.Google.Scopes)
+}
+
+func TestValidate(t *testing.T) {
+	tests := []struct {
+		name    string
+		mutate  func(*Config)
+		wantErr bool
+	}{
+		{
+			name:    "valid config",
+			mutate:  func(c *Config) {},
+			wantErr: false,
+		},
+		{
+			name: "missing credentials file",
+			mutate: func(c *Config) {
+				c.OAuth.ClientCredentialsFile = ""
+			},
+			wantErr: true,
+		},
+		{
+			name: "missing token store",
+			mutate: func(c *Config) {
+				c.OAuth.TokenStoreFile = ""
+			},
+			wantErr: true,
+		},
+		{
+			name: "empty scopes",
+			mutate: func(c *Config) {
+				c.Google.Scopes = nil
+			},
+			wantErr: true,
+		},
+		{
+			name: "invalid port",
+			mutate: func(c *Config) {
+				c.Server.Port = 0
+			},
+			wantErr: true,
+		},
+	}
+	for _, tc := range tests {
+		t.Run(tc.name, func(t *testing.T) {
+			cfg, err := Load("", "")
+			require.NoError(t, err)
+			tc.mutate(cfg)
+			err = Validate(cfg)
+			if tc.wantErr {
+				assert.Error(t, err)
+			} else {
+				assert.NoError(t, err)
+			}
+		})
+	}
+}