Add tests for the Prisma schema generator.

Test the basic CRUD capability of the exposed Prisma models.

integration-tests/prisma/.gitignore

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+*.schema

integration-tests/prisma/dbschema/default.esdl

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+module default {
+    type GameSession {
+        multi link players: User {
+            constraint exclusive;
+        }
+        required property num: int32;
+    }
+
+    abstract type Named {
+        required property name: str;
+    }
+
+    type Post {
+        required link author: User;
+        required property body: str;
+    }
+
+    type User extending Named;
+
+    type UserGroup extending Named {
+        multi link users: User;
+    }
+}

integration-tests/prisma/dbschema/migrations/00001-m1b5kog.edgeql

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+CREATE MIGRATION m1b5kogggyycxixgy2mcrqu3ntk3hhagdcospowiernk6ddu6op6ia
+    ONTO initial
+{
+  CREATE ABSTRACT TYPE default::Named {
+      CREATE REQUIRED PROPERTY name: std::str;
+  };
+  CREATE TYPE default::User EXTENDING default::Named;
+  CREATE TYPE default::GameSession {
+      CREATE MULTI LINK players: default::User {
+          CREATE CONSTRAINT std::exclusive;
+      };
+      CREATE REQUIRED PROPERTY num: std::int32;
+  };
+  CREATE TYPE default::UserGroup EXTENDING default::Named {
+      CREATE MULTI LINK users: default::User;
+  };
+  CREATE TYPE default::Post {
+      CREATE REQUIRED LINK author: default::User;
+      CREATE REQUIRED PROPERTY body: std::str;
+  };
+};

integration-tests/prisma/gel.toml

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+[edgedb]
+server-version = "nightly"

integration-tests/prisma/globalSetup.ts

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+import createClient from "edgedb";
+
+export default async () => {
+  const client = createClient();
+
+  process.env._JEST_EDGEDB_VERSION = await client.queryRequiredSingleJSON(
+    `select sys::get_version()`,
+  );
+};

integration-tests/prisma/jest.config.js

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+module.exports = {
+  preset: "ts-jest",
+  testEnvironment: "node",
+  testPathIgnorePatterns: ["./dist", "./esm", "./mts", "./cjs", "./deno"],
+  globalSetup: "./globalSetup.ts",
+  transform: {},
+  globals: {},
+};

integration-tests/prisma/package.json

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+{
+  "private": true,
+  "name": "@edgedb/integration-prisma",
+  "version": "0.0.0",
+  "scripts": {
+    "typecheck": "echo 'Integration tests - lts, skipping typecheck...'",
+    "build": "echo 'Integration tests, no build output...'",
+    "generate": "pwd && npx @edgedb/generate prisma --file prisma.schema && npx prisma generate --schema=prisma.schema",
+    "test": "yarn test:ts",
+    "test:ts": "pwd && yarn generate && NODE_OPTIONS=\"--experimental-vm-modules\" jest --testPathIgnorePatterns='(esm/.*|mts/.*|cjs/.*|deno/.*)' --detectOpenHandles --forceExit",
+    "ci:integration-test": "tsx ./testRunner.ts",
+    "bench:types": "cd ../.. && tsx integration-tests/lts/bench.ts"
+  },
+  "devDependencies": {
+    "@arktype/attest": "^0.7.8",
+    "@edgedb/generate": "*",
+    "@prisma/client": "^6.1.0",
+    "@tsconfig/node-lts": "^20.1.3",
+    "@types/jest": "^29.5.12",
+    "@types/node": "^20.12.13",
+    "conditional-type-checks": "^1.0.6",
+    "jest": "^29.7.0",
+    "prisma": "^6.1.0",
+    "superjson": "1.13.3",
+    "ts-jest": "^29.1.4",
+    "typescript": "^5.5.2"
+  },
+  "dependencies": {
+    "edgedb": "*",
+    "fast-check": "^3.19.0"
+  }
+}