112 lines
4.1 KiB
Go
112 lines
4.1 KiB
Go
package spells
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import (
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"bytes"
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"encoding/json"
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"os"
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"reflect"
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"strings"
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"testing"
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"gitea.maximumdirect.net/eric/notarius/internal/core/source"
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"gitea.maximumdirect.net/eric/notarius/internal/framework/contracts"
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"gitea.maximumdirect.net/eric/notarius/internal/framework/pipeline"
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"gitea.maximumdirect.net/eric/notarius/internal/modules/dnd"
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)
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func TestCodecMatchesMaintainedDurableFixture(t *testing.T) {
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raw, err := os.ReadFile("testdata/dnd_spells.v1.json")
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if err != nil {
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t.Fatalf("read durable fixture: %v", err)
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}
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codec := New()
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value, err := codec.Decode(raw)
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if err != nil {
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t.Fatalf("Decode() error = %v, want nil", err)
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}
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want := dnd.SpellList{SpellCasts: []dnd.SpellCast{
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{Caster: "Aria", Spell: "Cure Wounds", Effect: "Heals an injured ally.", NarrativeDescription: "Aria restores the fighter after the fight.", SourceRefs: []source.SourceRef{{SourceID: "session-alpha", StartUnitID: 1, EndUnitID: 2}}},
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{Caster: "Borin", Spell: "Fire Bolt", Effect: "Scorches the wight.", NarrativeDescription: "Borin hurls fire at the wight.", SourceRefs: []source.SourceRef{{SourceID: "session-alpha", StartUnitID: 3, EndUnitID: 3}}},
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}}
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if !reflect.DeepEqual(value, want) {
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t.Fatalf("Decode() = %#v, want %#v", value, want)
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}
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encoded, err := codec.Encode(value)
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if err != nil {
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t.Fatalf("Encode() error = %v, want nil", err)
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}
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var compact bytes.Buffer
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if err := json.Compact(&compact, raw); err != nil {
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t.Fatalf("compact durable fixture: %v", err)
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}
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if !bytes.Equal(encoded, compact.Bytes()) {
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t.Fatalf("Encode() = %s, want stable durable JSON %s", encoded, compact.Bytes())
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}
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second, err := codec.Encode(value)
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if err != nil || !bytes.Equal(second, encoded) {
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t.Fatalf("second Encode() = %s, %v; want deterministic bytes", second, err)
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}
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}
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func TestCodecOwnsDurableSchemaAndRegistersExactType(t *testing.T) {
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codec := New()
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schema := codec.Schema()
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if codec.Kind() != dnd.SpellListKind || codec.MediaType() != MediaType {
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t.Fatalf("codec identity = %q/%q", codec.Kind(), codec.MediaType())
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}
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if schema.ID != SchemaID || schema.Name != SchemaName || schema.Version != SchemaVersion || !json.Valid(schema.JSONSchema) {
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t.Fatalf("schema = %#v, want durable spell schema", schema)
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}
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var document map[string]any
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if err := json.Unmarshal(schema.JSONSchema, &document); err != nil || document["$id"] != SchemaID {
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t.Fatalf("durable schema document = %#v, %v", document, err)
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}
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registry := pipeline.NewArtifactCodecRegistry()
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if err := pipeline.RegisterArtifactCodec(registry, codec); err != nil {
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t.Fatalf("RegisterArtifactCodec() error = %v", err)
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}
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spec, ok := registry.Spec(dnd.SpellListKind)
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if !ok || spec.SchemaDigest != contracts.DigestArtifactSchema(schema) {
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t.Fatalf("registered spec = %#v, %t", spec, ok)
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}
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}
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func TestCodecStrictlyRejectsInvalidRepresentations(t *testing.T) {
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codec := New()
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tests := []struct {
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name string
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raw string
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want string
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}{
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{name: "unknown", raw: `{"spell_casts":[],"unexpected":true}`, want: "unknown field"},
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{name: "trailing", raw: `{"spell_casts":[]} {}`, want: "multiple JSON values"},
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{name: "missing", raw: `{}`, want: "spell_casts must be present"},
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{name: "invalid evidence", raw: `{"spell_casts":[{"caster":"Aria","spell":"Cure Wounds","effect":"Heals","narrative_description":"Aria heals","source_refs":[{"source_id":"session","start_unit_id":0,"end_unit_id":1}]}]}`, want: "start_unit_id"},
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}
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for _, test := range tests {
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t.Run(test.name, func(t *testing.T) {
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_, err := codec.Decode([]byte(test.raw))
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if err == nil || !strings.Contains(err.Error(), test.want) {
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t.Fatalf("Decode() error = %v, want %q", err, test.want)
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}
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})
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}
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}
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func TestCodecRejectsInvalidCanonicalValues(t *testing.T) {
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_, err := New().Encode(dnd.SpellList{})
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if err == nil || !strings.Contains(err.Error(), "spell_casts must be present") {
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t.Fatalf("Encode() error = %v, want strict shape error", err)
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}
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}
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func TestCodecSchemaIsMutationSafe(t *testing.T) {
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first := New().Schema()
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first.JSONSchema[0] = '['
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second := New().Schema()
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if !json.Valid(second.JSONSchema) || second.JSONSchema[0] == '[' {
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t.Fatalf("Schema() returned shared bytes: %s", second.JSONSchema)
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}
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}
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