diff --git a/test/js/samples/computed-collapsed-if/expected.js b/test/js/samples/computed-collapsed-if/expected.js
index 754d202429..bc01e0dfc0 100644
--- a/test/js/samples/computed-collapsed-if/expected.js
+++ b/test/js/samples/computed-collapsed-if/expected.js
@@ -40,6 +40,14 @@ class SvelteComponent extends SvelteComponent_1 {
 		super();
 		init(this, options, instance, create_fragment, safe_not_equal, ["x", "a", "b"]);
 	}
+
+	get a() {
+		return this.$$.ctx.a;
+	}
+
+	get b() {
+		return this.$$.ctx.b;
+	}
 }
 
 export default SvelteComponent;
\ No newline at end of file
diff --git a/test/js/samples/debug-empty/expected.js b/test/js/samples/debug-empty/expected.js
index f122a7b979..73eebd73ca 100644
--- a/test/js/samples/debug-empty/expected.js
+++ b/test/js/samples/debug-empty/expected.js
@@ -82,6 +82,14 @@ class SvelteComponent extends SvelteComponentDev {
 			console.warn("<SvelteComponent> was created without expected prop 'name'");
 		}
 	}
+
+	get name() {
+		throw new Error("<SvelteComponent>: Props cannot be read directly from the component instance unless compiling with 'accessors: true' or '<svelte:options accessors/>'");
+	}
+
+	set name(value) {
+		throw new Error("<SvelteComponent>: Props cannot be set directly on the component instance unless compiling with 'accessors: true' or '<svelte:options accessors/>'");
+	}
 }
 
 export default SvelteComponent;
\ No newline at end of file
diff --git a/test/js/samples/debug-foo-bar-baz-things/expected.js b/test/js/samples/debug-foo-bar-baz-things/expected.js
index b8b134606c..2ba87abfd9 100644
--- a/test/js/samples/debug-foo-bar-baz-things/expected.js
+++ b/test/js/samples/debug-foo-bar-baz-things/expected.js
@@ -180,6 +180,38 @@ class SvelteComponent extends SvelteComponentDev {
 			console.warn("<SvelteComponent> was created without expected prop 'baz'");
 		}
 	}
+
+	get things() {
+		throw new Error("<SvelteComponent>: Props cannot be read directly from the component instance unless compiling with 'accessors: true' or '<svelte:options accessors/>'");
+	}
+
+	set things(value) {
+		throw new Error("<SvelteComponent>: Props cannot be set directly on the component instance unless compiling with 'accessors: true' or '<svelte:options accessors/>'");
+	}
+
+	get foo() {
+		throw new Error("<SvelteComponent>: Props cannot be read directly from the component instance unless compiling with 'accessors: true' or '<svelte:options accessors/>'");
+	}
+
+	set foo(value) {
+		throw new Error("<SvelteComponent>: Props cannot be set directly on the component instance unless compiling with 'accessors: true' or '<svelte:options accessors/>'");
+	}
+
+	get bar() {
+		throw new Error("<SvelteComponent>: Props cannot be read directly from the component instance unless compiling with 'accessors: true' or '<svelte:options accessors/>'");
+	}
+
+	set bar(value) {
+		throw new Error("<SvelteComponent>: Props cannot be set directly on the component instance unless compiling with 'accessors: true' or '<svelte:options accessors/>'");
+	}
+
+	get baz() {
+		throw new Error("<SvelteComponent>: Props cannot be read directly from the component instance unless compiling with 'accessors: true' or '<svelte:options accessors/>'");
+	}
+
+	set baz(value) {
+		throw new Error("<SvelteComponent>: Props cannot be set directly on the component instance unless compiling with 'accessors: true' or '<svelte:options accessors/>'");
+	}
 }
 
 export default SvelteComponent;
\ No newline at end of file
diff --git a/test/js/samples/debug-foo/expected.js b/test/js/samples/debug-foo/expected.js
index 94f580ed9d..09502f6025 100644
--- a/test/js/samples/debug-foo/expected.js
+++ b/test/js/samples/debug-foo/expected.js
@@ -172,6 +172,22 @@ class SvelteComponent extends SvelteComponentDev {
 			console.warn("<SvelteComponent> was created without expected prop 'foo'");
 		}
 	}
+
+	get things() {
+		throw new Error("<SvelteComponent>: Props cannot be read directly from the component instance unless compiling with 'accessors: true' or '<svelte:options accessors/>'");
+	}
+
+	set things(value) {
+		throw new Error("<SvelteComponent>: Props cannot be set directly on the component instance unless compiling with 'accessors: true' or '<svelte:options accessors/>'");
+	}
+
+	get foo() {
+		throw new Error("<SvelteComponent>: Props cannot be read directly from the component instance unless compiling with 'accessors: true' or '<svelte:options accessors/>'");
+	}
+
+	set foo(value) {
+		throw new Error("<SvelteComponent>: Props cannot be set directly on the component instance unless compiling with 'accessors: true' or '<svelte:options accessors/>'");
+	}
 }
 
 export default SvelteComponent;
\ No newline at end of file
diff --git a/test/js/samples/dev-warning-missing-data-computed/expected.js b/test/js/samples/dev-warning-missing-data-computed/expected.js
index 447477bea5..18ec0e5074 100644
--- a/test/js/samples/dev-warning-missing-data-computed/expected.js
+++ b/test/js/samples/dev-warning-missing-data-computed/expected.js
@@ -88,6 +88,14 @@ class SvelteComponent extends SvelteComponentDev {
 			console.warn("<SvelteComponent> was created without expected prop 'foo'");
 		}
 	}
+
+	get foo() {
+		throw new Error("<SvelteComponent>: Props cannot be read directly from the component instance unless compiling with 'accessors: true' or '<svelte:options accessors/>'");
+	}
+
+	set foo(value) {
+		throw new Error("<SvelteComponent>: Props cannot be set directly on the component instance unless compiling with 'accessors: true' or '<svelte:options accessors/>'");
+	}
 }
 
 export default SvelteComponent;
\ No newline at end of file