Add ETo AdjustmentMethod

routes/adjustmentMethods/EToAdjustmentMethod.spec.ts

@@ -0,0 +1,43 @@
+import * as moment from "moment";
+import { expect } from "chai";
+import { GeoCoordinates } from "../../types";
+import { calculateETo, EToData } from "./EToAdjustmentMethod";
+
+
+const testData: TestData[] = require( "../../test/etoTest.json" );
+
+describe( "ETo AdjustmentMethod", () => {
+	describe( "Should correctly calculate ETo", async () => {
+		for ( const locationData of testData ) {
+			it( "Using data from " + locationData.description, async () => {
+				let date = moment.unix( locationData.startTimestamp );
+				for ( const entry of locationData.entries ) {
+					const etoData: EToData = {
+						...entry.data,
+						precip: 0,
+						timestamp: date.unix(),
+						weatherProvider: "mock"
+					};
+					const calculatedETo = calculateETo( etoData, locationData.elevation, locationData.coordinates );
+					// Allow a small margin of error for rounding, unit conversions, and approximations.
+					expect( calculatedETo ).approximately( entry.eto, 0.003 );
+
+					date = date.add( 1, "days" );
+				}
+			} );
+		}
+	} );
+} );
+
+interface TestData {
+	description: string;
+	source: string;
+	startTimestamp: number;
+	elevation: number;
+	coordinates: GeoCoordinates;
+	entries: {
+		eto: number,
+		/** This is not actually full EToData - it is missing `timestamp`, `weatherProvider`, and `precip`. */
+		data: EToData
+	}[];
+}