Add unit tests for mapRunnerToDataSourceModel in data_source.go

data_source.go had no test file at all. The two new tests cover the
full-field mapping path and the null/optional-field path, matching the
pattern used for the equivalent runners_data_source_test.go tests.

https://claude.ai/code/session_01RGuqEJbEyQYff6DAr5nst1

Author: claude

internal/provider/data_source_test.go

@@ -0,0 +1,97 @@
+package provider
+
+import (
+	"encoding/json"
+	"testing"
+
+	gitpod "github.com/gitpod-io/gitpod-sdk-go"
+	"github.com/hashicorp/terraform-plugin-framework/types"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestMapRunnerToDataSourceModel_MapsAllFields(t *testing.T) {
+	var cfg gitpod.RunnerConfiguration
+	require.NoError(t, json.Unmarshal([]byte(`{"autoUpdate":true,"devcontainerImageCacheEnabled":true,"region":"us-east-1","releaseChannel":"RUNNER_RELEASE_CHANNEL_STABLE","logLevel":"LOG_LEVEL_INFO","metrics":{"enabled":true,"managedMetricsEnabled":true,"url":"https://metrics.example","username":"metrics-user"},"updateWindow":{"startHour":8,"endHour":12}}`), &cfg))
+
+	runner := gitpod.Runner{
+		RunnerID:        "runner-123",
+		Name:            "Test Runner",
+		Provider:        gitpod.RunnerProviderAwsEc2,
+		RunnerManagerID: "mgr-456",
+		Spec: gitpod.RunnerSpec{
+			DesiredPhase:  gitpod.RunnerPhaseActive,
+			Variant:       gitpod.RunnerVariantStandard,
+			Configuration: cfg,
+		},
+		Status: gitpod.RunnerStatus{
+			Phase:   gitpod.RunnerPhaseDegraded,
+			Message: "degraded",
+			Version: "1.2.3",
+			Region:  "eu-central-1",
+		},
+	}
+
+	got := mapRunnerToDataSourceModel(runner)
+
+	assert.Equal(t, "runner-123", got.ID.ValueString())
+	assert.Equal(t, "Test Runner", got.Name.ValueString())
+	assert.Equal(t, string(gitpod.RunnerProviderAwsEc2), got.ProviderType.ValueString())
+	assert.Equal(t, "mgr-456", got.RunnerManagerID.ValueString())
+
+	require.NotNil(t, got.Spec)
+	assert.Equal(t, string(gitpod.RunnerPhaseActive), got.Spec.DesiredPhase.ValueString())
+	assert.Equal(t, string(gitpod.RunnerVariantStandard), got.Spec.Variant.ValueString())
+
+	require.NotNil(t, got.Spec.Configuration)
+	assert.True(t, got.Spec.Configuration.AutoUpdate.ValueBool())
+	assert.True(t, got.Spec.Configuration.DevcontainerImageCacheEnabled.ValueBool())
+	assert.Equal(t, "us-east-1", got.Spec.Configuration.Region.ValueString())
+	assert.Equal(t, string(gitpod.RunnerReleaseChannelStable), got.Spec.Configuration.ReleaseChannel.ValueString())
+	assert.Equal(t, string(gitpod.LogLevelInfo), got.Spec.Configuration.LogLevel.ValueString())
+
+	require.NotNil(t, got.Spec.Configuration.Metrics)
+	assert.True(t, got.Spec.Configuration.Metrics.Enabled.ValueBool())
+	assert.True(t, got.Spec.Configuration.Metrics.ManagedMetricsEnabled.ValueBool())
+	assert.Equal(t, "https://metrics.example", got.Spec.Configuration.Metrics.URL.ValueString())
+	assert.Equal(t, "metrics-user", got.Spec.Configuration.Metrics.Username.ValueString())
+
+	require.NotNil(t, got.Spec.Configuration.UpdateWindow)
+	assert.Equal(t, int64(8), got.Spec.Configuration.UpdateWindow.StartHour.ValueInt64())
+	assert.Equal(t, int64(12), got.Spec.Configuration.UpdateWindow.EndHour.ValueInt64())
+
+	statusAttrs := got.Status.Attributes()
+	assert.Equal(t, string(gitpod.RunnerPhaseDegraded), statusAttrs["phase"].(types.String).ValueString())
+	assert.Equal(t, "degraded", statusAttrs["message"].(types.String).ValueString())
+	assert.Equal(t, "1.2.3", statusAttrs["version"].(types.String).ValueString())
+	assert.Equal(t, "eu-central-1", statusAttrs["region"].(types.String).ValueString())
+}
+
+func TestMapRunnerToDataSourceModel_NullOptionalFields(t *testing.T) {
+	runner := gitpod.Runner{
+		RunnerID: "runner-456",
+		Name:     "Minimal Runner",
+		Provider: gitpod.RunnerProviderLinuxHost,
+		Spec: gitpod.RunnerSpec{
+			Configuration: gitpod.RunnerConfiguration{},
+		},
+	}
+
+	got := mapRunnerToDataSourceModel(runner)
+
+	assert.True(t, got.RunnerManagerID.IsNull())
+
+	require.NotNil(t, got.Spec)
+	assert.True(t, got.Spec.DesiredPhase.IsNull())
+	assert.True(t, got.Spec.Variant.IsNull())
+
+	require.NotNil(t, got.Spec.Configuration)
+	assert.True(t, got.Spec.Configuration.Region.IsNull())
+	assert.True(t, got.Spec.Configuration.ReleaseChannel.IsNull())
+	assert.True(t, got.Spec.Configuration.LogLevel.IsNull())
+	assert.Nil(t, got.Spec.Configuration.UpdateWindow)
+
+	require.NotNil(t, got.Spec.Configuration.Metrics)
+	assert.True(t, got.Spec.Configuration.Metrics.URL.IsNull())
+	assert.True(t, got.Spec.Configuration.Metrics.Username.IsNull())
+}