diff --git a/test/sim/abilities/flowergift.js b/test/sim/abilities/flowergift.js
index 62cb54fc04..5c74b5cb0d 100644
--- a/test/sim/abilities/flowergift.js
+++ b/test/sim/abilities/flowergift.js
@@ -92,5 +92,23 @@ describe('Flower Gift', () => {
 			assert.equal(battle.field.weather, 'raindance');
 			assert.species(battle.p1.active[0], 'Cherrim');
 		});
+
+		it(`transformed Cherrim should transform without Flower Gift`, () => {
+			battle = common.gen(4).createBattle([[
+				{ species: 'Ditto', moves: ['transform'] },
+			], [
+				{ species: 'Cherrim', moves: ['sleeptalk'] },
+				{ species: 'Torkoal', ability: 'drought', moves: ['sleeptalk'] },
+				{ species: 'Bulbasaur', ability: 'drizzle', moves: ['sleeptalk'] },
+			]]);
+			battle.makeChoices();
+			battle.makeChoices('move sleeptalk', 'switch 2');
+
+			assert.equal(battle.field.weather, 'sunnyday');
+			assert.species(battle.p1.active[0], 'Cherrim-Sunshine');
+			battle.makeChoices('auto', 'switch 3');
+			assert.equal(battle.field.weather, 'raindance');
+			assert.species(battle.p1.active[0], 'Cherrim');
+		});
 	});
 });
diff --git a/test/sim/abilities/forecast.js b/test/sim/abilities/forecast.js
new file mode 100644
index 0000000000..579f86c05e
--- /dev/null
+++ b/test/sim/abilities/forecast.js
@@ -0,0 +1,36 @@
+'use strict';
+
+const assert = require('./../../assert');
+const common = require('./../../common');
+
+let battle;
+
+describe('Forecast', () => {
+	afterEach(() => {
+		battle.destroy();
+	});
+
+	it(`should revert form if it loses its ability`, () => {
+		battle = common.createBattle([[
+			{ species: "Castform", ability: 'forecast', moves: ['sleeptalk'] },
+		], [
+			{ species: "Groudon", ability: 'drought', moves: ['skillswap'] },
+		]]);
+		assert.species(battle.p1.active[0], 'Castform-Sunny');
+		battle.makeChoices();
+		assert.species(battle.p1.active[0], 'Castform');
+	});
+
+	describe('[Gen 4]', () => {
+		it(`should not revert form if it loses its ability`, () => {
+			battle = common.gen(4).createBattle([[
+				{ species: "Castform", ability: 'forecast', moves: ['sleeptalk'] },
+			], [
+				{ species: "Groudon", ability: 'drought', moves: ['skillswap'] },
+			]]);
+			assert.species(battle.p1.active[0], 'Castform-Sunny');
+			battle.makeChoices();
+			assert.species(battle.p1.active[0], 'Castform-Sunny');
+		});
+	});
+});