From 258b8826b302e09e0630f03a066c6f8740c80f90 Mon Sep 17 00:00:00 2001
From: Lang Martin <lang@hashicorp.com>
Date: Fri, 5 Apr 2019 12:42:51 -0400
Subject: [PATCH] decoder_test check for decodedFields and unusedKeys

---
 decoder_test.go                             | 34 +++++++++++++++++++++
 test-fixtures/structure_map_extra_keys.hcl  |  4 +++
 test-fixtures/structure_map_extra_keys.json |  6 ++++
 3 files changed, 44 insertions(+)
 create mode 100644 test-fixtures/structure_map_extra_keys.hcl
 create mode 100644 test-fixtures/structure_map_extra_keys.json

diff --git a/decoder_test.go b/decoder_test.go
index 3ffdcfd..adc4ee6 100644
--- a/decoder_test.go
+++ b/decoder_test.go
@@ -786,6 +786,40 @@ func TestDecode_structureMapInvalid(t *testing.T) {
 	}
 }
 
+func TestDecode_structureMapExtraKeys(t *testing.T) {
+	type hclVariable struct {
+		A     int
+		B     int
+		Found []string `hcl:",decodedFields"`
+		Extra []string `hcl:",unusedKeys"`
+	}
+
+	q := hclVariable{
+		A:     1,
+		B:     2,
+		Found: []string{"A", "B"},
+		Extra: []string{"extra1", "extra2"},
+	}
+
+	var p hclVariable
+	ast, _ := Parse(testReadFile(t, "structure_map_extra_keys.hcl"))
+	DecodeObject(&p, ast)
+	if !(p.A == q.A && p.B == q.B &&
+		reflect.DeepEqual(p.Found, q.Found) &&
+		reflect.DeepEqual(p.Extra, q.Extra)) {
+		t.Fatal("not equal")
+	}
+
+	var j hclVariable
+	ast, _ = Parse(testReadFile(t, "structure_map_extra_keys.json"))
+	DecodeObject(&j, ast)
+	if !(j.A == q.A && j.B == q.B &&
+		reflect.DeepEqual(j.Found, q.Found) &&
+		reflect.DeepEqual(j.Extra, q.Extra)) {
+		t.Fatal("not equal")
+	}
+}
+
 func TestDecode_interfaceNonPointer(t *testing.T) {
 	var value interface{}
 	err := Decode(value, testReadFile(t, "basic_int_string.hcl"))
diff --git a/test-fixtures/structure_map_extra_keys.hcl b/test-fixtures/structure_map_extra_keys.hcl
new file mode 100644
index 0000000..b888c76
--- /dev/null
+++ b/test-fixtures/structure_map_extra_keys.hcl
@@ -0,0 +1,4 @@
+a = 1
+b = 2
+extra1 = 3
+extra2 = 4
diff --git a/test-fixtures/structure_map_extra_keys.json b/test-fixtures/structure_map_extra_keys.json
new file mode 100644
index 0000000..2c04972
--- /dev/null
+++ b/test-fixtures/structure_map_extra_keys.json
@@ -0,0 +1,6 @@
+{
+	"a": 1,
+	"b": 2,
+	"extra1": 3,
+	"extra2": 4
+}