Zod config validation (#635)

* Zod WIP

* Zod form validation

* DynamicForm testing

* Fix linting

* Delete rasterSource.ts

---------

Co-authored-by: philon- <philon-@users.noreply.github.com>

src/validation/pskSchema.test.ts

@@ -0,0 +1,174 @@
+import { describe, expect, it } from "vitest";
+import { makePskHelpers } from "./pskSchema.ts";
+import { fromByteArray } from "base64-js";
+
+function makeBase64OfLength(len: number): string {
+  return fromByteArray(new Uint8Array(len));
+}
+
+describe("stringSchema", () => {
+  it("accepts valid base64 string of allowed length", () => {
+    const { stringSchema } = makePskHelpers([16]);
+    const valid = makeBase64OfLength(16);
+    expect(() => stringSchema().parse(valid)).not.toThrow();
+  });
+
+  it("rejects base64 string of disallowed length", () => {
+    const { stringSchema, msgs } = makePskHelpers([16]);
+    const invalid = makeBase64OfLength(8);
+    const result = stringSchema().safeParse(invalid);
+    expect(result.success).toBe(false);
+    if (!result.success) {
+      expect(result.error.issues[0].message).toBe(msgs.length);
+    }
+  });
+
+  it("rejects invalid base64 string", () => {
+    const { stringSchema, msgs } = makePskHelpers([16]);
+    const result = stringSchema().safeParse("not_base64!");
+    expect(result.success).toBe(false);
+    if (!result.success) {
+      expect(result.error.issues[0].message).toBe(msgs.format);
+    }
+  });
+
+  it("rejects empty string if not optional and 0 not allowed", () => {
+    const { stringSchema, msgs } = makePskHelpers([16]);
+    const result = stringSchema().safeParse("");
+    expect(result.success).toBe(false);
+    if (!result.success) {
+      expect(result.error.issues[0].message).toBe(msgs.required);
+    }
+  });
+
+  it("accepts empty string if 0 is allowed", () => {
+    const { stringSchema } = makePskHelpers([0]);
+    const result = stringSchema().safeParse("");
+    expect(result.success).toBe(true);
+  });
+
+  it("accepts empty string if optional=true", () => {
+    const { stringSchema } = makePskHelpers([16]);
+    const result = stringSchema(true).safeParse("");
+    expect(result.success).toBe(true);
+  });
+
+  it("accepts all allowed lengths", () => {
+    const { stringSchema } = makePskHelpers([8, 16, 32]);
+    for (const len of [8, 16, 32]) {
+      const valid = makeBase64OfLength(len);
+      const result = stringSchema().safeParse(valid);
+      expect(result.success).toBe(true);
+    }
+  });
+
+  it("accepts valid base64 string as optional when optional=true", () => {
+    const { stringSchema } = makePskHelpers([16]);
+    const valid = makeBase64OfLength(16);
+    const result = stringSchema(true).safeParse(valid);
+    expect(result.success).toBe(true);
+  });
+
+  it("rejects base64 string with correct length but extra padding", () => {
+    const { stringSchema, msgs } = makePskHelpers([16]);
+    const valid = makeBase64OfLength(16) + "==";
+    const result = stringSchema().safeParse(valid);
+    expect(result.success).toBe(false);
+    if (!result.success) {
+      expect(result.error.issues[0].message).toBe(msgs.format);
+    }
+  });
+
+  it("accepts empty string if allowedByteLengths includes 0 and optional=false", () => {
+    const { stringSchema } = makePskHelpers([0, 16]);
+    const result = stringSchema(false).safeParse("");
+    expect(result.success).toBe(true);
+  });
+
+  it("rejects base64 string with valid format but not in allowedByteLengths", () => {
+    const { stringSchema, msgs } = makePskHelpers([8, 32]);
+    const invalid = makeBase64OfLength(16);
+    const result = stringSchema().safeParse(invalid);
+    expect(result.success).toBe(false);
+    if (!result.success) {
+      expect(result.error.issues[0].message).toBe(msgs.length);
+    }
+  });
+
+  describe("bytesSchema", () => {
+    it("accepts valid byte array of allowed length", () => {
+      const { bytesSchema } = makePskHelpers([16]);
+      const valid = new Uint8Array(16);
+      expect(() => bytesSchema().parse(valid)).not.toThrow();
+    });
+
+    it("rejects byte array of disallowed length", () => {
+      const { bytesSchema, msgs } = makePskHelpers([16]);
+      const invalid = new Uint8Array(8);
+      const result = bytesSchema().safeParse(invalid);
+      expect(result.success).toBe(false);
+      if (!result.success) {
+        expect(result.error.issues[0].message).toBe(msgs.length);
+      }
+    });
+
+    it("rejects non-Uint8Array input", () => {
+      const { bytesSchema } = makePskHelpers([16]);
+      const result = bytesSchema().safeParse([1, 2, 3]);
+      expect(result.success).toBe(false);
+    });
+
+    it("rejects empty array if not optional and 0 not allowed", () => {
+      const { bytesSchema, msgs } = makePskHelpers([16]);
+      const result = bytesSchema().safeParse(new Uint8Array(0));
+      expect(result.success).toBe(false);
+      if (!result.success) {
+        expect(result.error.issues[0].message).toBe(msgs.required);
+      }
+    });
+
+    it("accepts empty array if 0 is allowed", () => {
+      const { bytesSchema } = makePskHelpers([0]);
+      const result = bytesSchema().safeParse(new Uint8Array(0));
+      expect(result.success).toBe(true);
+    });
+
+    it("accepts empty array if optional=true", () => {
+      const { bytesSchema } = makePskHelpers([16]);
+      const result = bytesSchema(true).safeParse(new Uint8Array(0));
+      expect(result.success).toBe(true);
+    });
+
+    it("accepts all allowed lengths", () => {
+      const { bytesSchema } = makePskHelpers([8, 16, 32]);
+      for (const len of [8, 16, 32]) {
+        const valid = new Uint8Array(len);
+        const result = bytesSchema().safeParse(valid);
+        expect(result.success).toBe(true);
+      }
+    });
+
+    it("accepts valid byte array as optional when optional=true", () => {
+      const { bytesSchema } = makePskHelpers([16]);
+      const valid = new Uint8Array(16);
+      const result = bytesSchema(true).safeParse(valid);
+      expect(result.success).toBe(true);
+    });
+
+    it("accepts empty array if allowedByteLengths includes 0 and optional=false", () => {
+      const { bytesSchema } = makePskHelpers([0, 16]);
+      const result = bytesSchema(false).safeParse(new Uint8Array(0));
+      expect(result.success).toBe(true);
+    });
+
+    it("rejects byte array with valid format but not in allowedByteLengths", () => {
+      const { bytesSchema, msgs } = makePskHelpers([8, 32]);
+      const invalid = new Uint8Array(16);
+      const result = bytesSchema().safeParse(invalid);
+      expect(result.success).toBe(false);
+      if (!result.success) {
+        expect(result.error.issues[0].message).toBe(msgs.length);
+      }
+    });
+  });
+});