terraform: test for interpolation escapes

terraform/context_apply_test.go

@@ -47,6 +47,35 @@ func TestContext2Apply_basic(t *testing.T) {
 	}
 }
 
+func TestContext2Apply_escape(t *testing.T) {
+	m := testModule(t, "apply-escape")
+	p := testProvider("aws")
+	p.ApplyFn = testApplyFn
+	p.DiffFn = testDiffFn
+	ctx := testContext2(t, &ContextOpts{
+		Module: m,
+		Providers: map[string]ResourceProviderFactory{
+			"aws": testProviderFuncFixed(p),
+		},
+	})
+
+	if _, err := ctx.Plan(); err != nil {
+		t.Fatalf("err: %s", err)
+	}
+
+	state, err := ctx.Apply()
+	if err != nil {
+		t.Fatalf("err: %s", err)
+	}
+
+	checkStateString(t, state, `
+aws_instance.bar:
+  ID = foo
+  foo = "bar"
+  type = aws_instance
+`)
+}
+
 func TestContext2Apply_resourceCountOneList(t *testing.T) {
 	m := testModule(t, "apply-resource-count-one-list")
 	p := testProvider("null")

terraform/test-fixtures/apply-escape/main.tf

@@ -0,0 +1,3 @@
+resource "aws_instance" "bar" {
+    foo = "${"\"bar\""}"
+}