Unit test codegen

[david-crespo]

#231 is in the trash, but it had one part I really liked, and can't believe we didn't do before: pure functions that take in a chunk of schema and assert on the generated code!

oxide.ts/generator/client/api.test.ts

Lines 68 to 81 in ace6464

	describe("generateTransformFunction", () => {
	it("handles timestamps at top level", () => {
	expect(genTransformResponse(projectSchema)).toMatchInlineSnapshot(`
	"(o) => {
	o.time_created = new Date(o.time_created)
	o.time_modified = new Date(o.time_modified)
	}"
	`);
	});
	it("returns null when there are no transforms to make", () => {
	expect(genTransformResponse(noTransforms)).toEqual(undefined);
	});
	});

I also learned about these libraries that could give more structure to our very stringy generation code:

• https://ts-morph.com/
• https://github.com/stephenh/ts-poet