diff --git a/tests/block-parser.test.ts b/tests/block-parser.test.ts
index c15cc43..690be19 100644
--- a/tests/block-parser.test.ts
+++ b/tests/block-parser.test.ts
@@ -1,4 +1,5 @@
 import { extractFirstRaindropBlock, parseRaindropBlock } from "../src/block-parser";
+import { DEFAULT_DISPLAY_FIELDS, resolveRaindropDisplayFields } from "../src/renderer";
 
 describe("parseRaindropBlock", () => {
 	it("parses supported key-value options", () => {
@@ -41,6 +42,67 @@ describe("parseRaindropBlock", () => {
 		expect(parsed.options.limit).toBe(1);
 		expect(parsed.warnings).toEqual(["Invalid `limit`; using the plugin default."]);
 	});
+
+	it("parses show and hide field lists", () => {
+		const parsed = parseRaindropBlock(`
+			show: collection, cover
+			hide: excerpt, tags
+		`);
+
+		expect(parsed.options.showFields).toEqual(["collection", "cover"]);
+		expect(parsed.options.hideFields).toEqual(["excerpt", "tags"]);
+		expect(parsed.warnings).toEqual([]);
+	});
+
+	it("normalizes casing and duplicates in field lists", () => {
+		const parsed = parseRaindropBlock("show: Cover, cover, ,DOMAIN");
+
+		expect(parsed.options.showFields).toEqual(["cover", "domain"]);
+		expect(parsed.warnings).toEqual([]);
+	});
+
+	it("warns about unknown field names and keeps valid ones", () => {
+		const parsed = parseRaindropBlock("hide: excerpt, banana");
+
+		expect(parsed.options.hideFields).toEqual(["excerpt"]);
+		expect(parsed.warnings).toEqual([
+			"Unknown field `banana` in `hide`; expected one of cover, domain, created, excerpt, tags, collection.",
+		]);
+	});
+
+	it("omits field lists when no valid names remain", () => {
+		const parsed = parseRaindropBlock("show: banana");
+
+		expect(parsed.options.showFields).toBeUndefined();
+		expect(parsed.warnings).toHaveLength(1);
+	});
+});
+
+describe("resolveRaindropDisplayFields", () => {
+	it("returns the defaults when no overrides are given", () => {
+		expect(resolveRaindropDisplayFields(DEFAULT_DISPLAY_FIELDS)).toEqual(DEFAULT_DISPLAY_FIELDS);
+	});
+
+	it("layers show and hide on top of the defaults", () => {
+		const fields = resolveRaindropDisplayFields(DEFAULT_DISPLAY_FIELDS, ["collection", "cover"], ["excerpt", "tags"]);
+
+		expect(fields).toEqual({
+			cover: true,
+			domain: true,
+			created: true,
+			excerpt: false,
+			tags: false,
+			collection: true,
+		});
+	});
+
+	it("applies hide after show and does not mutate the defaults", () => {
+		const defaults = { ...DEFAULT_DISPLAY_FIELDS };
+		const fields = resolveRaindropDisplayFields(defaults, ["excerpt"], ["excerpt"]);
+
+		expect(fields.excerpt).toBe(false);
+		expect(defaults).toEqual(DEFAULT_DISPLAY_FIELDS);
+	});
 });
 
 describe("extractFirstRaindropBlock", () => {