test: add geminicli codeassist types tests

- Add TierInfo UnmarshalJSON tests
- Add LoadCodeAssistResponse GetTier tests
- Add model field tests

internal/pkg/geminicli/codeassist_types_test.go

@@ -0,0 +1,139 @@
+package geminicli
+
+import (
+	"encoding/json"
+	"testing"
+
+	"github.com/stretchr/testify/require"
+)
+
+func TestTierInfo_UnmarshalJSON(t *testing.T) {
+	tests := []struct {
+		name     string
+		input    string
+		wantID   string
+		wantErr  bool
+	}{
+		{"string_tier", `"free-tier"`, "free-tier", false},
+		{"object_tier", `{"id":"pro-tier"}`, "pro-tier", false},
+		{"empty_string", `""`, "", false},
+		{"null", `null`, "", false},
+		{"invalid_json_empty", ``, "", true},
+		{"invalid_json_whitespace", `   `, "", true},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			var tier TierInfo
+			err := json.Unmarshal([]byte(tt.input), &tier)
+			if tt.wantErr {
+				require.Error(t, err)
+			} else {
+				require.NoError(t, err)
+				require.Equal(t, tt.wantID, tier.ID)
+			}
+		})
+	}
+}
+
+func TestLoadCodeAssistResponse_GetTier(t *testing.T) {
+	tests := []struct {
+		name string
+		resp LoadCodeAssistResponse
+		want string
+	}{
+		{
+			name: "paid_tier_priority",
+			resp: LoadCodeAssistResponse{
+				PaidTier:    &TierInfo{ID: "pro"},
+				CurrentTier: &TierInfo{ID: "free"},
+			},
+			want: "pro",
+		},
+		{
+			name: "current_tier_only",
+			resp: LoadCodeAssistResponse{
+				CurrentTier: &TierInfo{ID: "free"},
+			},
+			want: "free",
+		},
+		{
+			name: "paid_empty_fallback",
+			resp: LoadCodeAssistResponse{
+				PaidTier:    &TierInfo{ID: ""},
+				CurrentTier: &TierInfo{ID: "free"},
+			},
+			want: "free",
+		},
+		{
+			name: "no_tier",
+			resp: LoadCodeAssistResponse{},
+			want: "",
+		},
+		{
+			name: "nil_tiers",
+			resp: LoadCodeAssistResponse{
+				PaidTier:    nil,
+				CurrentTier: nil,
+			},
+			want: "",
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			got := tt.resp.GetTier()
+			require.Equal(t, tt.want, got)
+		})
+	}
+}
+
+func TestAllowedTier_Fields(t *testing.T) {
+	tier := AllowedTier{
+		ID:        "pro",
+		IsDefault: true,
+	}
+	require.Equal(t, "pro", tier.ID)
+	require.True(t, tier.IsDefault)
+}
+
+func TestOnboardUserRequest_Fields(t *testing.T) {
+	req := OnboardUserRequest{
+		TierID: "pro",
+		Metadata: LoadCodeAssistMetadata{
+			IDEType:    "vscode",
+			Platform:   "linux",
+			PluginType: "extension",
+		},
+	}
+	require.Equal(t, "pro", req.TierID)
+	require.Equal(t, "vscode", req.Metadata.IDEType)
+	require.Equal(t, "linux", req.Metadata.Platform)
+	require.Equal(t, "extension", req.Metadata.PluginType)
+}
+
+func TestOnboardUserResponse_Fields(t *testing.T) {
+	resp := OnboardUserResponse{
+		Done: true,
+		Response: &OnboardUserResultData{
+			CloudAICompanionProject: "project123",
+		},
+		Name: "test",
+	}
+	require.True(t, resp.Done)
+	require.Equal(t, "test", resp.Name)
+	require.NotNil(t, resp.Response)
+}
+
+func TestLoadCodeAssistRequest_Fields(t *testing.T) {
+	req := LoadCodeAssistRequest{
+		Metadata: LoadCodeAssistMetadata{
+			IDEType:    "vscode",
+			Platform:   "macos",
+			PluginType: "extension",
+		},
+	}
+	require.Equal(t, "vscode", req.Metadata.IDEType)
+	require.Equal(t, "macos", req.Metadata.Platform)
+	require.Equal(t, "extension", req.Metadata.PluginType)
+}