gnd: Make codegen verification tests self-contained

Embed fixture data directly in the gnd crate instead of requiring
graph-cli to be installed. This removes the GRAPH_CLI_PATH environment
variable dependency and makes tests runnable without external setup.

Added regenerate.sh script for updating fixtures when needed.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Author: lutter

gnd/tests/codegen_verification.rs

@@ -1,9 +1,11 @@
 //! Integration tests that verify `gnd codegen` produces compatible output
 //! to `graph-cli codegen` using golden test fixtures.
 //!
-//! Fixtures are sourced from graph-cli's validation test directory.
-//! Set `GRAPH_CLI_PATH` environment variable to specify the graph-cli repository path,
-//! or it defaults to `../graph-cli` relative to the graph-node repository.
+//! Fixtures are stored locally in `tests/fixtures/codegen_verification/`.
+//! To regenerate fixtures after graph-cli changes, run:
+//! ```sh
+//! ./tests/fixtures/regenerate.sh
+//! ```
 //!
 //! # Known Differences
 //!
@@ -41,31 +43,12 @@ const FIXTURES: &[&str] = &[
     "topic0-is-valid",
 ];
 
-/// Get the path to the graph-cli repository
-fn graph_cli_path() -> PathBuf {
-    if let Ok(path) = std::env::var("GRAPH_CLI_PATH") {
-        PathBuf::from(path)
-    } else {
-        // Default: assume graph-cli is at ../graph-cli relative to graph-node repo
-        let manifest_dir = env!("CARGO_MANIFEST_DIR");
-        PathBuf::from(manifest_dir)
-            .parent()
-            .unwrap()
-            .parent()
-            .unwrap()
-            .join("subgraphs")
-            .join("graph-cli")
-    }
-}
-
 /// Get the path to the fixtures directory
 fn fixtures_path() -> PathBuf {
-    graph_cli_path()
-        .join("packages")
-        .join("cli")
+    PathBuf::from(env!("CARGO_MANIFEST_DIR"))
         .join("tests")
-        .join("cli")
-        .join("validation")
+        .join("fixtures")
+        .join("codegen_verification")
 }
 
 /// Get the path to the gnd binary

gnd/tests/fixtures/codegen_verification/2d-array-is-valid/Abi.json

@@ -0,0 +1,7 @@
+[
+  {
+    "type": "event",
+    "name": "ExampleEvent",
+    "inputs": [{ "type": "string" }]
+  }
+]

gnd/tests/fixtures/codegen_verification/2d-array-is-valid/generated/ExampleSubgraph/ExampleContract.ts

@@ -0,0 +1,35 @@
+// THIS IS AN AUTOGENERATED FILE. DO NOT EDIT THIS FILE DIRECTLY.
+
+import {
+  ethereum,
+  JSONValue,
+  TypedMap,
+  Entity,
+  Bytes,
+  Address,
+  BigInt
+} from "@graphprotocol/graph-ts";
+
+export class ExampleEvent extends ethereum.Event {
+  get params(): ExampleEvent__Params {
+    return new ExampleEvent__Params(this);
+  }
+}
+
+export class ExampleEvent__Params {
+  _event: ExampleEvent;
+
+  constructor(event: ExampleEvent) {
+    this._event = event;
+  }
+
+  get param0(): string {
+    return this._event.parameters[0].value.toString();
+  }
+}
+
+export class ExampleContract extends ethereum.SmartContract {
+  static bind(address: Address): ExampleContract {
+    return new ExampleContract("ExampleContract", address);
+  }
+}

gnd/tests/fixtures/codegen_verification/2d-array-is-valid/generated/schema.ts

@@ -0,0 +1,65 @@
+// THIS IS AN AUTOGENERATED FILE. DO NOT EDIT THIS FILE DIRECTLY.
+
+import {
+  TypedMap,
+  Entity,
+  Value,
+  ValueKind,
+  store,
+  Bytes,
+  BigInt,
+  BigDecimal
+} from "@graphprotocol/graph-ts";
+
+export class MyEntity extends Entity {
+  constructor(id: string) {
+    super();
+    this.set("id", Value.fromString(id));
+  }
+
+  save(): void {
+    let id = this.get("id");
+    assert(id != null, "Cannot save MyEntity entity without an ID");
+    if (id) {
+      assert(
+        id.kind == ValueKind.STRING,
+        `Entities of type MyEntity must have an ID of type String but the id '${id.displayData()}' is of type ${id.displayKind()}`
+      );
+      store.set("MyEntity", id.toString(), this);
+    }
+  }
+
+  static loadInBlock(id: string): MyEntity | null {
+    return changetype<MyEntity | null>(store.get_in_block("MyEntity", id));
+  }
+
+  static load(id: string): MyEntity | null {
+    return changetype<MyEntity | null>(store.get("MyEntity", id));
+  }
+
+  get id(): string {
+    let value = this.get("id");
+    if (!value || value.kind == ValueKind.NULL) {
+      throw new Error("Cannot return null for a required field.");
+    } else {
+      return value.toString();
+    }
+  }
+
+  set id(value: string) {
+    this.set("id", Value.fromString(value));
+  }
+
+  get childTokenURIs(): Array<Array<string>> {
+    let value = this.get("childTokenURIs");
+    if (!value || value.kind == ValueKind.NULL) {
+      throw new Error("Cannot return null for a required field.");
+    } else {
+      return value.toStringArray();
+    }
+  }
+
+  set childTokenURIs(value: Array<Array<string>>) {
+    this.set("childTokenURIs", Value.fromStringMatrix(value));
+  }
+}

gnd/tests/fixtures/codegen_verification/2d-array-is-valid/mapping.ts

@@ -0,0 +1,4 @@
+type MyEntity @entity(immutable: true) {
+  id: ID!
+  childTokenURIs: [[String!]!]! # string[][]
+}

gnd/tests/fixtures/codegen_verification/2d-array-is-valid/schema.graphql

@@ -0,0 +1,23 @@
+specVersion: 0.0.1
+repository: https://github.com/graphprotocol/test-subgraph
+description: Test subgraph
+schema:
+  file: ./schema.graphql
+dataSources:
+  - kind: ethereum/contract
+    name: ExampleSubgraph
+    source:
+      abi: ExampleContract
+    mapping:
+      kind: ethereum/events
+      apiVersion: 0.0.5
+      language: wasm/assemblyscript
+      file: ./mapping.ts
+      entities:
+        - ExampleEntity
+      abis:
+        - name: ExampleContract
+          file: ./Abi.json
+      eventHandlers:
+        - event: ExampleEvent(string)
+          handler: handleExampleEvent

gnd/tests/fixtures/codegen_verification/2d-array-is-valid/subgraph.yaml

@@ -0,0 +1,7 @@
+[
+  {
+    "type": "event",
+    "name": "ExampleEvent",
+    "inputs": [{ "type": "string" }]
+  }
+]

gnd/tests/fixtures/codegen_verification/3d-array-is-valid/Abi.json

@@ -0,0 +1,35 @@
+// THIS IS AN AUTOGENERATED FILE. DO NOT EDIT THIS FILE DIRECTLY.
+
+import {
+  ethereum,
+  JSONValue,
+  TypedMap,
+  Entity,
+  Bytes,
+  Address,
+  BigInt
+} from "@graphprotocol/graph-ts";
+
+export class ExampleEvent extends ethereum.Event {
+  get params(): ExampleEvent__Params {
+    return new ExampleEvent__Params(this);
+  }
+}
+
+export class ExampleEvent__Params {
+  _event: ExampleEvent;
+
+  constructor(event: ExampleEvent) {
+    this._event = event;
+  }
+
+  get param0(): string {
+    return this._event.parameters[0].value.toString();
+  }
+}
+
+export class ExampleContract extends ethereum.SmartContract {
+  static bind(address: Address): ExampleContract {
+    return new ExampleContract("ExampleContract", address);
+  }
+}

gnd/tests/fixtures/codegen_verification/3d-array-is-valid/generated/ExampleSubgraph/ExampleContract.ts

@@ -0,0 +1,65 @@
+// THIS IS AN AUTOGENERATED FILE. DO NOT EDIT THIS FILE DIRECTLY.
+
+import {
+  TypedMap,
+  Entity,
+  Value,
+  ValueKind,
+  store,
+  Bytes,
+  BigInt,
+  BigDecimal
+} from "@graphprotocol/graph-ts";
+
+export class MyEntity extends Entity {
+  constructor(id: string) {
+    super();
+    this.set("id", Value.fromString(id));
+  }
+
+  save(): void {
+    let id = this.get("id");
+    assert(id != null, "Cannot save MyEntity entity without an ID");
+    if (id) {
+      assert(
+        id.kind == ValueKind.STRING,
+        `Entities of type MyEntity must have an ID of type String but the id '${id.displayData()}' is of type ${id.displayKind()}`
+      );
+      store.set("MyEntity", id.toString(), this);
+    }
+  }
+
+  static loadInBlock(id: string): MyEntity | null {
+    return changetype<MyEntity | null>(store.get_in_block("MyEntity", id));
+  }
+
+  static load(id: string): MyEntity | null {
+    return changetype<MyEntity | null>(store.get("MyEntity", id));
+  }
+
+  get id(): string {
+    let value = this.get("id");
+    if (!value || value.kind == ValueKind.NULL) {
+      throw new Error("Cannot return null for a required field.");
+    } else {
+      return value.toString();
+    }
+  }
+
+  set id(value: string) {
+    this.set("id", Value.fromString(value));
+  }
+
+  get childTokenURIs(): Array<Array<Array<string>>> {
+    let value = this.get("childTokenURIs");
+    if (!value || value.kind == ValueKind.NULL) {
+      throw new Error("Cannot return null for a required field.");
+    } else {
+      return value.toStringArray();
+    }
+  }
+
+  set childTokenURIs(value: Array<Array<Array<string>>>) {
+    this.set("childTokenURIs", Value.fromStringMatrix(value));
+  }
+}