Grand test fixup (#138)

* start fixing up tests

* fix up tests + automate with drone

* fiddle with linting

* messing about with drone.yml

* some more fiddling

* hmmm

* add cache

* add vendor directory

* verbose

* ci updates

* update some little things

* update sig

vendor/github.com/vmihailenco/msgpack/v5/encode_map.go

@@ -0,0 +1,178 @@
+package msgpack
+
+import (
+	"math"
+	"reflect"
+	"sort"
+
+	"github.com/vmihailenco/msgpack/v5/msgpcode"
+)
+
+func encodeMapValue(e *Encoder, v reflect.Value) error {
+	if v.IsNil() {
+		return e.EncodeNil()
+	}
+
+	if err := e.EncodeMapLen(v.Len()); err != nil {
+		return err
+	}
+
+	for _, key := range v.MapKeys() {
+		if err := e.EncodeValue(key); err != nil {
+			return err
+		}
+		if err := e.EncodeValue(v.MapIndex(key)); err != nil {
+			return err
+		}
+	}
+
+	return nil
+}
+
+func encodeMapStringStringValue(e *Encoder, v reflect.Value) error {
+	if v.IsNil() {
+		return e.EncodeNil()
+	}
+
+	if err := e.EncodeMapLen(v.Len()); err != nil {
+		return err
+	}
+
+	m := v.Convert(mapStringStringType).Interface().(map[string]string)
+	if e.flags&sortMapKeysFlag != 0 {
+		return e.encodeSortedMapStringString(m)
+	}
+
+	for mk, mv := range m {
+		if err := e.EncodeString(mk); err != nil {
+			return err
+		}
+		if err := e.EncodeString(mv); err != nil {
+			return err
+		}
+	}
+
+	return nil
+}
+
+func encodeMapStringInterfaceValue(e *Encoder, v reflect.Value) error {
+	if v.IsNil() {
+		return e.EncodeNil()
+	}
+	m := v.Convert(mapStringInterfaceType).Interface().(map[string]interface{})
+	if e.flags&sortMapKeysFlag != 0 {
+		return e.EncodeMapSorted(m)
+	}
+	return e.EncodeMap(m)
+}
+
+func (e *Encoder) EncodeMap(m map[string]interface{}) error {
+	if m == nil {
+		return e.EncodeNil()
+	}
+	if err := e.EncodeMapLen(len(m)); err != nil {
+		return err
+	}
+	for mk, mv := range m {
+		if err := e.EncodeString(mk); err != nil {
+			return err
+		}
+		if err := e.Encode(mv); err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+func (e *Encoder) EncodeMapSorted(m map[string]interface{}) error {
+	if m == nil {
+		return e.EncodeNil()
+	}
+	if err := e.EncodeMapLen(len(m)); err != nil {
+		return err
+	}
+
+	keys := make([]string, 0, len(m))
+
+	for k := range m {
+		keys = append(keys, k)
+	}
+
+	sort.Strings(keys)
+
+	for _, k := range keys {
+		if err := e.EncodeString(k); err != nil {
+			return err
+		}
+		if err := e.Encode(m[k]); err != nil {
+			return err
+		}
+	}
+
+	return nil
+}
+
+func (e *Encoder) encodeSortedMapStringString(m map[string]string) error {
+	keys := make([]string, 0, len(m))
+	for k := range m {
+		keys = append(keys, k)
+	}
+	sort.Strings(keys)
+
+	for _, k := range keys {
+		err := e.EncodeString(k)
+		if err != nil {
+			return err
+		}
+		if err = e.EncodeString(m[k]); err != nil {
+			return err
+		}
+	}
+
+	return nil
+}
+
+func (e *Encoder) EncodeMapLen(l int) error {
+	if l < 16 {
+		return e.writeCode(msgpcode.FixedMapLow | byte(l))
+	}
+	if l <= math.MaxUint16 {
+		return e.write2(msgpcode.Map16, uint16(l))
+	}
+	return e.write4(msgpcode.Map32, uint32(l))
+}
+
+func encodeStructValue(e *Encoder, strct reflect.Value) error {
+	structFields := structs.Fields(strct.Type(), e.structTag)
+	if e.flags&arrayEncodedStructsFlag != 0 || structFields.AsArray {
+		return encodeStructValueAsArray(e, strct, structFields.List)
+	}
+	fields := structFields.OmitEmpty(strct, e.flags&omitEmptyFlag != 0)
+
+	if err := e.EncodeMapLen(len(fields)); err != nil {
+		return err
+	}
+
+	for _, f := range fields {
+		if err := e.EncodeString(f.name); err != nil {
+			return err
+		}
+		if err := f.EncodeValue(e, strct); err != nil {
+			return err
+		}
+	}
+
+	return nil
+}
+
+func encodeStructValueAsArray(e *Encoder, strct reflect.Value, fields []*field) error {
+	if err := e.EncodeArrayLen(len(fields)); err != nil {
+		return err
+	}
+	for _, f := range fields {
+		if err := f.EncodeValue(e, strct); err != nil {
+			return err
+		}
+	}
+	return nil
+}