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vendor/github.com/mitchellh/mapstructure/decode_hooks_test.go

@@ -0,0 +1,229 @@
+package mapstructure
+
+import (
+	"errors"
+	"reflect"
+	"testing"
+	"time"
+)
+
+func TestComposeDecodeHookFunc(t *testing.T) {
+	f1 := func(
+		f reflect.Kind,
+		t reflect.Kind,
+		data interface{}) (interface{}, error) {
+		return data.(string) + "foo", nil
+	}
+
+	f2 := func(
+		f reflect.Kind,
+		t reflect.Kind,
+		data interface{}) (interface{}, error) {
+		return data.(string) + "bar", nil
+	}
+
+	f := ComposeDecodeHookFunc(f1, f2)
+
+	result, err := DecodeHookExec(
+		f, reflect.TypeOf(""), reflect.TypeOf([]byte("")), "")
+	if err != nil {
+		t.Fatalf("bad: %s", err)
+	}
+	if result.(string) != "foobar" {
+		t.Fatalf("bad: %#v", result)
+	}
+}
+
+func TestComposeDecodeHookFunc_err(t *testing.T) {
+	f1 := func(reflect.Kind, reflect.Kind, interface{}) (interface{}, error) {
+		return nil, errors.New("foo")
+	}
+
+	f2 := func(reflect.Kind, reflect.Kind, interface{}) (interface{}, error) {
+		panic("NOPE")
+	}
+
+	f := ComposeDecodeHookFunc(f1, f2)
+
+	_, err := DecodeHookExec(
+		f, reflect.TypeOf(""), reflect.TypeOf([]byte("")), 42)
+	if err.Error() != "foo" {
+		t.Fatalf("bad: %s", err)
+	}
+}
+
+func TestComposeDecodeHookFunc_kinds(t *testing.T) {
+	var f2From reflect.Kind
+
+	f1 := func(
+		f reflect.Kind,
+		t reflect.Kind,
+		data interface{}) (interface{}, error) {
+		return int(42), nil
+	}
+
+	f2 := func(
+		f reflect.Kind,
+		t reflect.Kind,
+		data interface{}) (interface{}, error) {
+		f2From = f
+		return data, nil
+	}
+
+	f := ComposeDecodeHookFunc(f1, f2)
+
+	_, err := DecodeHookExec(
+		f, reflect.TypeOf(""), reflect.TypeOf([]byte("")), "")
+	if err != nil {
+		t.Fatalf("bad: %s", err)
+	}
+	if f2From != reflect.Int {
+		t.Fatalf("bad: %#v", f2From)
+	}
+}
+
+func TestStringToSliceHookFunc(t *testing.T) {
+	f := StringToSliceHookFunc(",")
+
+	strType := reflect.TypeOf("")
+	sliceType := reflect.TypeOf([]byte(""))
+	cases := []struct {
+		f, t   reflect.Type
+		data   interface{}
+		result interface{}
+		err    bool
+	}{
+		{sliceType, sliceType, 42, 42, false},
+		{strType, strType, 42, 42, false},
+		{
+			strType,
+			sliceType,
+			"foo,bar,baz",
+			[]string{"foo", "bar", "baz"},
+			false,
+		},
+		{
+			strType,
+			sliceType,
+			"",
+			[]string{},
+			false,
+		},
+	}
+
+	for i, tc := range cases {
+		actual, err := DecodeHookExec(f, tc.f, tc.t, tc.data)
+		if tc.err != (err != nil) {
+			t.Fatalf("case %d: expected err %#v", i, tc.err)
+		}
+		if !reflect.DeepEqual(actual, tc.result) {
+			t.Fatalf(
+				"case %d: expected %#v, got %#v",
+				i, tc.result, actual)
+		}
+	}
+}
+
+func TestStringToTimeDurationHookFunc(t *testing.T) {
+	f := StringToTimeDurationHookFunc()
+
+	strType := reflect.TypeOf("")
+	timeType := reflect.TypeOf(time.Duration(5))
+	cases := []struct {
+		f, t   reflect.Type
+		data   interface{}
+		result interface{}
+		err    bool
+	}{
+		{strType, timeType, "5s", 5 * time.Second, false},
+		{strType, timeType, "5", time.Duration(0), true},
+		{strType, strType, "5", "5", false},
+	}
+
+	for i, tc := range cases {
+		actual, err := DecodeHookExec(f, tc.f, tc.t, tc.data)
+		if tc.err != (err != nil) {
+			t.Fatalf("case %d: expected err %#v", i, tc.err)
+		}
+		if !reflect.DeepEqual(actual, tc.result) {
+			t.Fatalf(
+				"case %d: expected %#v, got %#v",
+				i, tc.result, actual)
+		}
+	}
+}
+
+func TestWeaklyTypedHook(t *testing.T) {
+	var f DecodeHookFunc = WeaklyTypedHook
+
+	boolType := reflect.TypeOf(true)
+	strType := reflect.TypeOf("")
+	sliceType := reflect.TypeOf([]byte(""))
+	cases := []struct {
+		f, t   reflect.Type
+		data   interface{}
+		result interface{}
+		err    bool
+	}{
+		// TO STRING
+		{
+			boolType,
+			strType,
+			false,
+			"0",
+			false,
+		},
+
+		{
+			boolType,
+			strType,
+			true,
+			"1",
+			false,
+		},
+
+		{
+			reflect.TypeOf(float32(1)),
+			strType,
+			float32(7),
+			"7",
+			false,
+		},
+
+		{
+			reflect.TypeOf(int(1)),
+			strType,
+			int(7),
+			"7",
+			false,
+		},
+
+		{
+			sliceType,
+			strType,
+			[]uint8("foo"),
+			"foo",
+			false,
+		},
+
+		{
+			reflect.TypeOf(uint(1)),
+			strType,
+			uint(7),
+			"7",
+			false,
+		},
+	}
+
+	for i, tc := range cases {
+		actual, err := DecodeHookExec(f, tc.f, tc.t, tc.data)
+		if tc.err != (err != nil) {
+			t.Fatalf("case %d: expected err %#v", i, tc.err)
+		}
+		if !reflect.DeepEqual(actual, tc.result) {
+			t.Fatalf(
+				"case %d: expected %#v, got %#v",
+				i, tc.result, actual)
+		}
+	}
+}