288 lines
10 KiB
Go
288 lines
10 KiB
Go
package engine
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import (
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"errors"
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"reflect"
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"testing"
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"gitea.maximumdirect.net/eric/ConfigKit/internal/document"
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)
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func TestNormalizeDestinationUsesLiteralMappingKeys(t *testing.T) {
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t.Parallel()
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parsed, err := ParsePath("/a~1b/0/~0")
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if err != nil {
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t.Fatal(err)
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}
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normalized, err := normalizeDestination(parsed)
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if err != nil {
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t.Fatal(err)
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}
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if got, want := normalized.String(), "/a~1b/0/~0"; got != want {
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t.Fatalf("normalized path = %q, want %q", got, want)
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}
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for index, want := range []string{"a/b", "0", "~"} {
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segment := normalized.segments[index]
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if segment.kind != pathSegmentKey || segment.key != want {
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t.Fatalf("segment %d = %#v, want key %q", index, segment, want)
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}
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}
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original := Keys("owned", "path")
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owned, err := normalizeDestination(original)
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if err != nil {
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t.Fatal(err)
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}
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owned.segments[0].key = "changed"
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if got := original.String(); got != "/owned/path" {
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t.Fatalf("normalizing shared path storage mutated its input: %q", got)
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}
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}
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func TestMappingPlacementModeMatchesZeroValue(t *testing.T) {
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t.Parallel()
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body := &document.Node{
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Kind: document.Mapping,
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Mapping: []document.Entry{{
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Key: "name", Value: &document.Node{Kind: document.String, Text: "entry"},
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}},
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}
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destination := Keys("catalog", "entry")
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path, zero, err := placeDocument(body, destination, body.Location, 5, 32)
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if err != nil {
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t.Fatal(err)
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}
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explicitPath, explicit, err := placeDocumentWithMode(body, destination, PlacementModeMapping, body.Location, 5, 32)
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if err != nil {
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t.Fatal(err)
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}
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if path.String() != explicitPath.String() || !reflect.DeepEqual(zero, explicit) {
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t.Fatalf("zero placement (%q, %#v) differs from mapping mode (%q, %#v)", path.String(), zero, explicitPath.String(), explicit)
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}
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}
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func TestAppendDestinationCopiesLiteralSegments(t *testing.T) {
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t.Parallel()
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parent := Keys("collection", "entry")
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relative := Keys("a/b", "0", "~")
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combined := appendDestination(parent, relative)
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if got, want := combined.String(), "/collection/entry/a~1b/0/~0"; got != want {
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t.Fatalf("combined destination = %q, want %q", got, want)
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}
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if len(combined.segments) != 5 {
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t.Fatalf("combined segments = %#v", combined.segments)
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}
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for index, segment := range combined.segments {
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if segment.kind != pathSegmentKey {
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t.Errorf("segment %d kind = %v, want mapping key", index, segment.kind)
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}
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}
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combined.segments[0].key = "changed parent"
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combined.segments[2].key = "changed relative"
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if got := parent.String(); got != "/collection/entry" {
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t.Fatalf("combined path shares parent segment storage: %q", got)
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}
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if got := relative.String(); got != "/a~1b/0/~0" {
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t.Fatalf("combined path shares relative segment storage: %q", got)
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}
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}
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func TestNormalizeDestinationRejectsIndicesAndReservedKeys(t *testing.T) {
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t.Parallel()
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for name, path := range map[string]Path{
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"explicit index": Keys("items").Index(0),
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"negative index": Keys("items").Index(-1),
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"invalid path": Path{invalid: true},
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"configkit": Keys("configkit"),
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"extends": Keys("extends"),
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"nested configkit": Keys("outer", "configkit"),
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"nested extends": Keys("outer", "extends"),
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} {
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t.Run(name, func(t *testing.T) {
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t.Parallel()
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if _, err := normalizeDestination(path); !errors.Is(err, errInvalidDestination) {
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t.Fatalf("normalizeDestination(%q) error = %v, want invalid destination", path.String(), err)
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}
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})
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}
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for _, key := range []string{"myextends", "configkit2", "", ".", "..", "../x", "a.b", "a/b", "~"} {
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t.Run("ordinary key "+key, func(t *testing.T) {
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t.Parallel()
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if _, err := normalizeDestination(Keys(key)); err != nil {
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t.Fatalf("normalizeDestination(%q): %v", key, err)
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}
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})
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}
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}
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func TestPlaceDocumentWrapsEmptyMappingAndPreservesSourceCoordinates(t *testing.T) {
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t.Parallel()
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rootLocation := document.Location{SourceID: "source-a", Line: 1, Column: 1}
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body := &document.Node{
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Kind: document.Mapping,
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Location: document.Location{SourceID: "source-a", Line: 4, Column: 1},
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}
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path, placed, err := placeDocument(body, Keys("a", "b"), rootLocation, 2, 5)
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if err != nil {
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t.Fatal(err)
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}
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if got, want := path.String(), "/a/b"; got != want {
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t.Fatalf("normalized destination = %q, want %q", got, want)
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}
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if placed == body || len(placed.Mapping) != 1 || placed.Mapping[0].Key != "a" {
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t.Fatalf("outer destination mapping was not created: %#v", placed)
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}
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inner := placed.Mapping[0].Value
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if inner.Kind != document.Mapping || len(inner.Mapping) != 1 || inner.Mapping[0].Key != "b" {
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t.Fatalf("inner destination mapping was not created: %#v", inner)
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}
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if inner.Mapping[0].Value != body || len(body.Mapping) != 0 {
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t.Fatal("placement mutated or copied the authored body")
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}
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if placed.Location != rootLocation || inner.Location != rootLocation || placed.Mapping[0].KeyLocation != rootLocation || placed.Mapping[0].ValueLocation != rootLocation {
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t.Fatal("introduced structure did not use the source-root coordinate fallback")
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}
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if body.Location != (document.Location{SourceID: "source-a", Line: 4, Column: 1}) {
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t.Fatalf("authored body location changed: %#v", body.Location)
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}
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if got, want := countInputNodes(placed), countInputNodes(body)+4; got != want {
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t.Fatalf("placed node count = %d, want body count plus four synthetic nodes (%d)", got, want)
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}
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}
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func TestPlaceDocumentPreservesAuthoredEntryCoordinates(t *testing.T) {
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t.Parallel()
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rootLocation := document.Location{SourceID: "source-b", Line: 1, Column: 1}
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bodyLocation := document.Location{SourceID: "source-b", Line: 3, Column: 1}
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keyLocation := document.Location{SourceID: "source-b", Line: 3, Column: 3}
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valueLocation := document.Location{SourceID: "source-b", Line: 4, Column: 5}
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value := &document.Node{Kind: document.String, Location: valueLocation, Text: "value"}
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body := &document.Node{
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Kind: document.Mapping,
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Location: bodyLocation,
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Mapping: []document.Entry{{
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Key: "leaf",
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KeyLocation: keyLocation,
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ValueLocation: valueLocation,
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Value: value,
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}},
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}
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_, placed, err := placeDocument(body, Keys("mounted"), rootLocation, 2, 5)
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if err != nil {
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t.Fatal(err)
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}
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if placed.Mapping[0].KeyLocation != rootLocation || placed.Mapping[0].ValueLocation != rootLocation {
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t.Fatal("introduced destination entry did not use the source-root fallback")
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}
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if placed.Mapping[0].Value != body || body.Location != bodyLocation {
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t.Fatal("placement changed the authored body node or location")
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}
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entry := body.Mapping[0]
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if entry.KeyLocation != keyLocation || entry.ValueLocation != valueLocation || entry.Value != value || value.Location != valueLocation {
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t.Fatal("placement changed authored entry or value coordinates")
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}
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}
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func TestPlaceDocumentRootAndBounds(t *testing.T) {
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t.Parallel()
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body := &document.Node{
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Kind: document.Mapping,
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Mapping: []document.Entry{{
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Key: "leaf",
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Value: &document.Node{Kind: document.String, Text: "value"},
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}},
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}
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path, placed, err := placeDocument(body, Path{}, body.Location, 1, 3)
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if err != nil {
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t.Fatal(err)
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}
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if path.String() != "" || placed != body {
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t.Fatal("root placement must preserve the existing body")
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}
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destination := Keys("a", "b")
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if !destinationWithinLimits(body, destination, 3, 7) {
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t.Fatal("exact depth and node limits should admit the placed document")
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}
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if destinationWithinLimits(body, destination, 2, 7) {
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t.Fatal("placement exceeding the depth limit was accepted")
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}
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if destinationWithinLimits(body, destination, 3, 6) {
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t.Fatal("placement exceeding the node limit was accepted")
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}
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_, placed, err = placeDocument(body, destination, body.Location, 3, 6)
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if !errors.Is(err, errDestinationLimit) || placed != nil {
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t.Fatalf("bounded placement returned node %p and error %v", placed, err)
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}
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_, absent, err := placeDocument(nil, destination, document.Location{}, 0, 0)
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if err != nil || absent != nil {
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t.Fatalf("absent body should not consume placement limits: node %p, error %v", absent, err)
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}
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}
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func TestPlaceDocumentSequenceItemAndMountedBounds(t *testing.T) {
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t.Parallel()
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root := document.Location{SourceID: "item", Line: 1, Column: 1}
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body := &document.Node{Kind: document.Mapping, Location: root}
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destination := Keys("catalog", "entries")
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placedPath, placed, err := placeDocumentWithMode(body, destination, PlacementModeSequenceItem, root, 3, 6)
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if err != nil {
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t.Fatal(err)
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}
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if placedPath.String() != "/catalog/entries" || placed.Kind != document.Mapping {
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t.Fatalf("placed root = %q %#v", placedPath.String(), placed)
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}
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container, ok := documentAtPath(placed, destination)
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if !ok || container.Kind != document.Sequence || len(container.Sequence) != 1 || container.Sequence[0] != body {
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t.Fatalf("item destination = %#v, present %v", container, ok)
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}
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if got, want := countInputNodes(placed), countInputNodes(body)+destinationWrapperNodeCount(destination)+1; got != want {
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t.Fatalf("item node count = %d, want %d", got, want)
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}
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if container.Location != root || container.Sequence[0].Location != root {
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t.Fatal("synthetic sequence or authored mapping lost source coordinates")
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}
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if _, _, err := placeDocumentWithMode(body, Path{}, PlacementModeSequenceItem, root, 3, 6); !errors.Is(err, errInvalidDestination) {
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t.Fatalf("root item placement error = %v, want invalid destination", err)
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}
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if _, _, err := placeDocumentWithMode(&document.Node{Kind: document.String}, destination, PlacementModeSequenceItem, root, 3, 6); !errors.Is(err, errInvalidDestination) {
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t.Fatalf("non-mapping item placement error = %v, want invalid destination", err)
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}
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if _, _, err := placeDocumentWithMode(body, destination, PlacementMode(255), root, 3, 6); !errors.Is(err, errInvalidDestination) {
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t.Fatalf("unknown placement mode error = %v, want invalid destination", err)
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}
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for _, test := range []struct {
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name string
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depth int
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nodes int
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wantAccept bool
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}{
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{name: "exact allowance", depth: 3, nodes: 6, wantAccept: true},
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{name: "one too shallow", depth: 2, nodes: 6},
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{name: "one node short", depth: 3, nodes: 5},
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} {
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t.Run(test.name, func(t *testing.T) {
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t.Parallel()
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_, _, err := placeDocumentWithMode(body, destination, PlacementModeSequenceItem, root, test.depth, test.nodes)
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if test.wantAccept && err != nil {
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t.Fatalf("exact bounds rejected: %v", err)
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}
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if !test.wantAccept && !errors.Is(err, errDestinationLimit) {
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t.Fatalf("over-bound placement error = %v", err)
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}
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})
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}
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}
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