milestone 30: overview as a dashboard, explicit health contract, period aggregations

admin/src/features/diagnostics/eventCopy.test.ts

@@ -48,3 +48,20 @@ test("component labels read as prose without inventing a name", () => {
 	expect(componentLabel("query_log")).toBe("Query log");
 	expect(componentLabel("disk")).toBe("Disk");
 });
+
+test("the legacy upstream_history code keeps its copy, so a retained episode still reads as prose", () => {
+	// Nothing emits it any more, but stored rows outlive the subsystem and the
+	// list endpoint passes their codes through verbatim.
+	expect(DIAGNOSTIC_CODES).toContain("upstream_history.write");
+	const copy = EVENT_COPY["upstream_history.write"];
+	expect(copy.title).toBe("Upstream history write failed");
+	expect(copy.impact).toMatch(/no longer runs/);
+});
+
+test("the recreated-log copy covers a planned schema change as well as an unreadable file", () => {
+	const copy = EVENT_COPY["query_log.recreated"];
+	// The planned cause leads, because it is the one an upgrade produces; the
+	// unreadable file is the other cause and must not be dropped from the copy.
+	expect(copy.impact).toMatch(/schema/);
+	expect(copy.impact).toMatch(/could not be read/);
+});