Load core faasd service definitions from compose

**What**
- Use the compose-go library to read the service definitions from an
  external compose file instead of building them in Go
- Add default compose file and copy during `faasd install`
- Add test for load and parse of compose file
- Make testing easier  by sorting the env keys
- Allow append to instantiate the slices so that we can more easily test
  for proper parsing (e.g. nil is still nil etc)
- Add the arch suffix to the compose file and set this as part of the
  env when we parse the compose file. This allows faasd to dynamically
  set the arch suffix used for the basic auth and the gateway images.

Signed-off-by: Lucas Roesler <roesler.lucas@gmail.com>

vendor/github.com/xeipuuv/gojsonschema/validation.go

@@ -0,0 +1,858 @@
+// Copyright 2015 xeipuuv ( https://github.com/xeipuuv )
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//   http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// author           xeipuuv
+// author-github    https://github.com/xeipuuv
+// author-mail      xeipuuv@gmail.com
+//
+// repository-name  gojsonschema
+// repository-desc  An implementation of JSON Schema, based on IETF's draft v4 - Go language.
+//
+// description      Extends Schema and subSchema, implements the validation phase.
+//
+// created          28-02-2013
+
+package gojsonschema
+
+import (
+	"encoding/json"
+	"math/big"
+	"reflect"
+	"regexp"
+	"strconv"
+	"strings"
+	"unicode/utf8"
+)
+
+// Validate loads and validates a JSON schema
+func Validate(ls JSONLoader, ld JSONLoader) (*Result, error) {
+	// load schema
+	schema, err := NewSchema(ls)
+	if err != nil {
+		return nil, err
+	}
+	return schema.Validate(ld)
+}
+
+// Validate loads and validates a JSON document
+func (v *Schema) Validate(l JSONLoader) (*Result, error) {
+	root, err := l.LoadJSON()
+	if err != nil {
+		return nil, err
+	}
+	return v.validateDocument(root), nil
+}
+
+func (v *Schema) validateDocument(root interface{}) *Result {
+	result := &Result{}
+	context := NewJsonContext(STRING_CONTEXT_ROOT, nil)
+	v.rootSchema.validateRecursive(v.rootSchema, root, result, context)
+	return result
+}
+
+func (v *subSchema) subValidateWithContext(document interface{}, context *JsonContext) *Result {
+	result := &Result{}
+	v.validateRecursive(v, document, result, context)
+	return result
+}
+
+// Walker function to validate the json recursively against the subSchema
+func (v *subSchema) validateRecursive(currentSubSchema *subSchema, currentNode interface{}, result *Result, context *JsonContext) {
+
+	if internalLogEnabled {
+		internalLog("validateRecursive %s", context.String())
+		internalLog(" %v", currentNode)
+	}
+
+	// Handle true/false schema as early as possible as all other fields will be nil
+	if currentSubSchema.pass != nil {
+		if !*currentSubSchema.pass {
+			result.addInternalError(
+				new(FalseError),
+				context,
+				currentNode,
+				ErrorDetails{},
+			)
+		}
+		return
+	}
+
+	// Handle referenced schemas, returns directly when a $ref is found
+	if currentSubSchema.refSchema != nil {
+		v.validateRecursive(currentSubSchema.refSchema, currentNode, result, context)
+		return
+	}
+
+	// Check for null value
+	if currentNode == nil {
+		if currentSubSchema.types.IsTyped() && !currentSubSchema.types.Contains(TYPE_NULL) {
+			result.addInternalError(
+				new(InvalidTypeError),
+				context,
+				currentNode,
+				ErrorDetails{
+					"expected": currentSubSchema.types.String(),
+					"given":    TYPE_NULL,
+				},
+			)
+			return
+		}
+
+		currentSubSchema.validateSchema(currentSubSchema, currentNode, result, context)
+		v.validateCommon(currentSubSchema, currentNode, result, context)
+
+	} else { // Not a null value
+
+		if isJSONNumber(currentNode) {
+
+			value := currentNode.(json.Number)
+
+			isInt := checkJSONInteger(value)
+
+			validType := currentSubSchema.types.Contains(TYPE_NUMBER) || (isInt && currentSubSchema.types.Contains(TYPE_INTEGER))
+
+			if currentSubSchema.types.IsTyped() && !validType {
+
+				givenType := TYPE_INTEGER
+				if !isInt {
+					givenType = TYPE_NUMBER
+				}
+
+				result.addInternalError(
+					new(InvalidTypeError),
+					context,
+					currentNode,
+					ErrorDetails{
+						"expected": currentSubSchema.types.String(),
+						"given":    givenType,
+					},
+				)
+				return
+			}
+
+			currentSubSchema.validateSchema(currentSubSchema, value, result, context)
+			v.validateNumber(currentSubSchema, value, result, context)
+			v.validateCommon(currentSubSchema, value, result, context)
+			v.validateString(currentSubSchema, value, result, context)
+
+		} else {
+
+			rValue := reflect.ValueOf(currentNode)
+			rKind := rValue.Kind()
+
+			switch rKind {
+
+			// Slice => JSON array
+
+			case reflect.Slice:
+
+				if currentSubSchema.types.IsTyped() && !currentSubSchema.types.Contains(TYPE_ARRAY) {
+					result.addInternalError(
+						new(InvalidTypeError),
+						context,
+						currentNode,
+						ErrorDetails{
+							"expected": currentSubSchema.types.String(),
+							"given":    TYPE_ARRAY,
+						},
+					)
+					return
+				}
+
+				castCurrentNode := currentNode.([]interface{})
+
+				currentSubSchema.validateSchema(currentSubSchema, castCurrentNode, result, context)
+
+				v.validateArray(currentSubSchema, castCurrentNode, result, context)
+				v.validateCommon(currentSubSchema, castCurrentNode, result, context)
+
+			// Map => JSON object
+
+			case reflect.Map:
+				if currentSubSchema.types.IsTyped() && !currentSubSchema.types.Contains(TYPE_OBJECT) {
+					result.addInternalError(
+						new(InvalidTypeError),
+						context,
+						currentNode,
+						ErrorDetails{
+							"expected": currentSubSchema.types.String(),
+							"given":    TYPE_OBJECT,
+						},
+					)
+					return
+				}
+
+				castCurrentNode, ok := currentNode.(map[string]interface{})
+				if !ok {
+					castCurrentNode = convertDocumentNode(currentNode).(map[string]interface{})
+				}
+
+				currentSubSchema.validateSchema(currentSubSchema, castCurrentNode, result, context)
+
+				v.validateObject(currentSubSchema, castCurrentNode, result, context)
+				v.validateCommon(currentSubSchema, castCurrentNode, result, context)
+
+				for _, pSchema := range currentSubSchema.propertiesChildren {
+					nextNode, ok := castCurrentNode[pSchema.property]
+					if ok {
+						subContext := NewJsonContext(pSchema.property, context)
+						v.validateRecursive(pSchema, nextNode, result, subContext)
+					}
+				}
+
+			// Simple JSON values : string, number, boolean
+
+			case reflect.Bool:
+
+				if currentSubSchema.types.IsTyped() && !currentSubSchema.types.Contains(TYPE_BOOLEAN) {
+					result.addInternalError(
+						new(InvalidTypeError),
+						context,
+						currentNode,
+						ErrorDetails{
+							"expected": currentSubSchema.types.String(),
+							"given":    TYPE_BOOLEAN,
+						},
+					)
+					return
+				}
+
+				value := currentNode.(bool)
+
+				currentSubSchema.validateSchema(currentSubSchema, value, result, context)
+				v.validateNumber(currentSubSchema, value, result, context)
+				v.validateCommon(currentSubSchema, value, result, context)
+				v.validateString(currentSubSchema, value, result, context)
+
+			case reflect.String:
+
+				if currentSubSchema.types.IsTyped() && !currentSubSchema.types.Contains(TYPE_STRING) {
+					result.addInternalError(
+						new(InvalidTypeError),
+						context,
+						currentNode,
+						ErrorDetails{
+							"expected": currentSubSchema.types.String(),
+							"given":    TYPE_STRING,
+						},
+					)
+					return
+				}
+
+				value := currentNode.(string)
+
+				currentSubSchema.validateSchema(currentSubSchema, value, result, context)
+				v.validateNumber(currentSubSchema, value, result, context)
+				v.validateCommon(currentSubSchema, value, result, context)
+				v.validateString(currentSubSchema, value, result, context)
+
+			}
+
+		}
+
+	}
+
+	result.incrementScore()
+}
+
+// Different kinds of validation there, subSchema / common / array / object / string...
+func (v *subSchema) validateSchema(currentSubSchema *subSchema, currentNode interface{}, result *Result, context *JsonContext) {
+
+	if internalLogEnabled {
+		internalLog("validateSchema %s", context.String())
+		internalLog(" %v", currentNode)
+	}
+
+	if len(currentSubSchema.anyOf) > 0 {
+
+		validatedAnyOf := false
+		var bestValidationResult *Result
+
+		for _, anyOfSchema := range currentSubSchema.anyOf {
+			if !validatedAnyOf {
+				validationResult := anyOfSchema.subValidateWithContext(currentNode, context)
+				validatedAnyOf = validationResult.Valid()
+
+				if !validatedAnyOf && (bestValidationResult == nil || validationResult.score > bestValidationResult.score) {
+					bestValidationResult = validationResult
+				}
+			}
+		}
+		if !validatedAnyOf {
+
+			result.addInternalError(new(NumberAnyOfError), context, currentNode, ErrorDetails{})
+
+			if bestValidationResult != nil {
+				// add error messages of closest matching subSchema as
+				// that's probably the one the user was trying to match
+				result.mergeErrors(bestValidationResult)
+			}
+		}
+	}
+
+	if len(currentSubSchema.oneOf) > 0 {
+
+		nbValidated := 0
+		var bestValidationResult *Result
+
+		for _, oneOfSchema := range currentSubSchema.oneOf {
+			validationResult := oneOfSchema.subValidateWithContext(currentNode, context)
+			if validationResult.Valid() {
+				nbValidated++
+			} else if nbValidated == 0 && (bestValidationResult == nil || validationResult.score > bestValidationResult.score) {
+				bestValidationResult = validationResult
+			}
+		}
+
+		if nbValidated != 1 {
+
+			result.addInternalError(new(NumberOneOfError), context, currentNode, ErrorDetails{})
+
+			if nbValidated == 0 {
+				// add error messages of closest matching subSchema as
+				// that's probably the one the user was trying to match
+				result.mergeErrors(bestValidationResult)
+			}
+		}
+
+	}
+
+	if len(currentSubSchema.allOf) > 0 {
+		nbValidated := 0
+
+		for _, allOfSchema := range currentSubSchema.allOf {
+			validationResult := allOfSchema.subValidateWithContext(currentNode, context)
+			if validationResult.Valid() {
+				nbValidated++
+			}
+			result.mergeErrors(validationResult)
+		}
+
+		if nbValidated != len(currentSubSchema.allOf) {
+			result.addInternalError(new(NumberAllOfError), context, currentNode, ErrorDetails{})
+		}
+	}
+
+	if currentSubSchema.not != nil {
+		validationResult := currentSubSchema.not.subValidateWithContext(currentNode, context)
+		if validationResult.Valid() {
+			result.addInternalError(new(NumberNotError), context, currentNode, ErrorDetails{})
+		}
+	}
+
+	if currentSubSchema.dependencies != nil && len(currentSubSchema.dependencies) > 0 {
+		if isKind(currentNode, reflect.Map) {
+			for elementKey := range currentNode.(map[string]interface{}) {
+				if dependency, ok := currentSubSchema.dependencies[elementKey]; ok {
+					switch dependency := dependency.(type) {
+
+					case []string:
+						for _, dependOnKey := range dependency {
+							if _, dependencyResolved := currentNode.(map[string]interface{})[dependOnKey]; !dependencyResolved {
+								result.addInternalError(
+									new(MissingDependencyError),
+									context,
+									currentNode,
+									ErrorDetails{"dependency": dependOnKey},
+								)
+							}
+						}
+
+					case *subSchema:
+						dependency.validateRecursive(dependency, currentNode, result, context)
+					}
+				}
+			}
+		}
+	}
+
+	if currentSubSchema._if != nil {
+		validationResultIf := currentSubSchema._if.subValidateWithContext(currentNode, context)
+		if currentSubSchema._then != nil && validationResultIf.Valid() {
+			validationResultThen := currentSubSchema._then.subValidateWithContext(currentNode, context)
+			if !validationResultThen.Valid() {
+				result.addInternalError(new(ConditionThenError), context, currentNode, ErrorDetails{})
+				result.mergeErrors(validationResultThen)
+			}
+		}
+		if currentSubSchema._else != nil && !validationResultIf.Valid() {
+			validationResultElse := currentSubSchema._else.subValidateWithContext(currentNode, context)
+			if !validationResultElse.Valid() {
+				result.addInternalError(new(ConditionElseError), context, currentNode, ErrorDetails{})
+				result.mergeErrors(validationResultElse)
+			}
+		}
+	}
+
+	result.incrementScore()
+}
+
+func (v *subSchema) validateCommon(currentSubSchema *subSchema, value interface{}, result *Result, context *JsonContext) {
+
+	if internalLogEnabled {
+		internalLog("validateCommon %s", context.String())
+		internalLog(" %v", value)
+	}
+
+	// const:
+	if currentSubSchema._const != nil {
+		vString, err := marshalWithoutNumber(value)
+		if err != nil {
+			result.addInternalError(new(InternalError), context, value, ErrorDetails{"error": err})
+		}
+		if *vString != *currentSubSchema._const {
+			result.addInternalError(new(ConstError),
+				context,
+				value,
+				ErrorDetails{
+					"allowed": *currentSubSchema._const,
+				},
+			)
+		}
+	}
+
+	// enum:
+	if len(currentSubSchema.enum) > 0 {
+		vString, err := marshalWithoutNumber(value)
+		if err != nil {
+			result.addInternalError(new(InternalError), context, value, ErrorDetails{"error": err})
+		}
+		if !isStringInSlice(currentSubSchema.enum, *vString) {
+			result.addInternalError(
+				new(EnumError),
+				context,
+				value,
+				ErrorDetails{
+					"allowed": strings.Join(currentSubSchema.enum, ", "),
+				},
+			)
+		}
+	}
+
+	result.incrementScore()
+}
+
+func (v *subSchema) validateArray(currentSubSchema *subSchema, value []interface{}, result *Result, context *JsonContext) {
+
+	if internalLogEnabled {
+		internalLog("validateArray %s", context.String())
+		internalLog(" %v", value)
+	}
+
+	nbValues := len(value)
+
+	// TODO explain
+	if currentSubSchema.itemsChildrenIsSingleSchema {
+		for i := range value {
+			subContext := NewJsonContext(strconv.Itoa(i), context)
+			validationResult := currentSubSchema.itemsChildren[0].subValidateWithContext(value[i], subContext)
+			result.mergeErrors(validationResult)
+		}
+	} else {
+		if currentSubSchema.itemsChildren != nil && len(currentSubSchema.itemsChildren) > 0 {
+
+			nbItems := len(currentSubSchema.itemsChildren)
+
+			// while we have both schemas and values, check them against each other
+			for i := 0; i != nbItems && i != nbValues; i++ {
+				subContext := NewJsonContext(strconv.Itoa(i), context)
+				validationResult := currentSubSchema.itemsChildren[i].subValidateWithContext(value[i], subContext)
+				result.mergeErrors(validationResult)
+			}
+
+			if nbItems < nbValues {
+				// we have less schemas than elements in the instance array,
+				// but that might be ok if "additionalItems" is specified.
+
+				switch currentSubSchema.additionalItems.(type) {
+				case bool:
+					if !currentSubSchema.additionalItems.(bool) {
+						result.addInternalError(new(ArrayNoAdditionalItemsError), context, value, ErrorDetails{})
+					}
+				case *subSchema:
+					additionalItemSchema := currentSubSchema.additionalItems.(*subSchema)
+					for i := nbItems; i != nbValues; i++ {
+						subContext := NewJsonContext(strconv.Itoa(i), context)
+						validationResult := additionalItemSchema.subValidateWithContext(value[i], subContext)
+						result.mergeErrors(validationResult)
+					}
+				}
+			}
+		}
+	}
+
+	// minItems & maxItems
+	if currentSubSchema.minItems != nil {
+		if nbValues < int(*currentSubSchema.minItems) {
+			result.addInternalError(
+				new(ArrayMinItemsError),
+				context,
+				value,
+				ErrorDetails{"min": *currentSubSchema.minItems},
+			)
+		}
+	}
+	if currentSubSchema.maxItems != nil {
+		if nbValues > int(*currentSubSchema.maxItems) {
+			result.addInternalError(
+				new(ArrayMaxItemsError),
+				context,
+				value,
+				ErrorDetails{"max": *currentSubSchema.maxItems},
+			)
+		}
+	}
+
+	// uniqueItems:
+	if currentSubSchema.uniqueItems {
+		var stringifiedItems = make(map[string]int)
+		for j, v := range value {
+			vString, err := marshalWithoutNumber(v)
+			if err != nil {
+				result.addInternalError(new(InternalError), context, value, ErrorDetails{"err": err})
+			}
+			if i, ok := stringifiedItems[*vString]; ok {
+				result.addInternalError(
+					new(ItemsMustBeUniqueError),
+					context,
+					value,
+					ErrorDetails{"type": TYPE_ARRAY, "i": i, "j": j},
+				)
+			}
+			stringifiedItems[*vString] = j
+		}
+	}
+
+	// contains:
+
+	if currentSubSchema.contains != nil {
+		validatedOne := false
+		var bestValidationResult *Result
+
+		for i, v := range value {
+			subContext := NewJsonContext(strconv.Itoa(i), context)
+
+			validationResult := currentSubSchema.contains.subValidateWithContext(v, subContext)
+			if validationResult.Valid() {
+				validatedOne = true
+				break
+			} else {
+				if bestValidationResult == nil || validationResult.score > bestValidationResult.score {
+					bestValidationResult = validationResult
+				}
+			}
+		}
+		if !validatedOne {
+			result.addInternalError(
+				new(ArrayContainsError),
+				context,
+				value,
+				ErrorDetails{},
+			)
+			if bestValidationResult != nil {
+				result.mergeErrors(bestValidationResult)
+			}
+		}
+	}
+
+	result.incrementScore()
+}
+
+func (v *subSchema) validateObject(currentSubSchema *subSchema, value map[string]interface{}, result *Result, context *JsonContext) {
+
+	if internalLogEnabled {
+		internalLog("validateObject %s", context.String())
+		internalLog(" %v", value)
+	}
+
+	// minProperties & maxProperties:
+	if currentSubSchema.minProperties != nil {
+		if len(value) < int(*currentSubSchema.minProperties) {
+			result.addInternalError(
+				new(ArrayMinPropertiesError),
+				context,
+				value,
+				ErrorDetails{"min": *currentSubSchema.minProperties},
+			)
+		}
+	}
+	if currentSubSchema.maxProperties != nil {
+		if len(value) > int(*currentSubSchema.maxProperties) {
+			result.addInternalError(
+				new(ArrayMaxPropertiesError),
+				context,
+				value,
+				ErrorDetails{"max": *currentSubSchema.maxProperties},
+			)
+		}
+	}
+
+	// required:
+	for _, requiredProperty := range currentSubSchema.required {
+		_, ok := value[requiredProperty]
+		if ok {
+			result.incrementScore()
+		} else {
+			result.addInternalError(
+				new(RequiredError),
+				context,
+				value,
+				ErrorDetails{"property": requiredProperty},
+			)
+		}
+	}
+
+	// additionalProperty & patternProperty:
+	for pk := range value {
+
+		// Check whether this property is described by "properties"
+		found := false
+		for _, spValue := range currentSubSchema.propertiesChildren {
+			if pk == spValue.property {
+				found = true
+			}
+		}
+
+		//  Check whether this property is described by "patternProperties"
+		ppMatch := v.validatePatternProperty(currentSubSchema, pk, value[pk], result, context)
+
+		// If it is not described by neither "properties" nor "patternProperties" it must pass "additionalProperties"
+		if !found && !ppMatch {
+			switch ap := currentSubSchema.additionalProperties.(type) {
+			case bool:
+				// Handle the boolean case separately as it's cleaner to return a specific error than failing to pass the false schema
+				if !ap {
+					result.addInternalError(
+						new(AdditionalPropertyNotAllowedError),
+						context,
+						value[pk],
+						ErrorDetails{"property": pk},
+					)
+
+				}
+			case *subSchema:
+				validationResult := ap.subValidateWithContext(value[pk], NewJsonContext(pk, context))
+				result.mergeErrors(validationResult)
+			}
+		}
+	}
+
+	// propertyNames:
+	if currentSubSchema.propertyNames != nil {
+		for pk := range value {
+			validationResult := currentSubSchema.propertyNames.subValidateWithContext(pk, context)
+			if !validationResult.Valid() {
+				result.addInternalError(new(InvalidPropertyNameError),
+					context,
+					value, ErrorDetails{
+						"property": pk,
+					})
+				result.mergeErrors(validationResult)
+			}
+		}
+	}
+
+	result.incrementScore()
+}
+
+func (v *subSchema) validatePatternProperty(currentSubSchema *subSchema, key string, value interface{}, result *Result, context *JsonContext) bool {
+
+	if internalLogEnabled {
+		internalLog("validatePatternProperty %s", context.String())
+		internalLog(" %s %v", key, value)
+	}
+
+	validated := false
+
+	for pk, pv := range currentSubSchema.patternProperties {
+		if matches, _ := regexp.MatchString(pk, key); matches {
+			validated = true
+			subContext := NewJsonContext(key, context)
+			validationResult := pv.subValidateWithContext(value, subContext)
+			result.mergeErrors(validationResult)
+		}
+	}
+
+	if !validated {
+		return false
+	}
+
+	result.incrementScore()
+	return true
+}
+
+func (v *subSchema) validateString(currentSubSchema *subSchema, value interface{}, result *Result, context *JsonContext) {
+
+	// Ignore JSON numbers
+	if isJSONNumber(value) {
+		return
+	}
+
+	// Ignore non strings
+	if !isKind(value, reflect.String) {
+		return
+	}
+
+	if internalLogEnabled {
+		internalLog("validateString %s", context.String())
+		internalLog(" %v", value)
+	}
+
+	stringValue := value.(string)
+
+	// minLength & maxLength:
+	if currentSubSchema.minLength != nil {
+		if utf8.RuneCount([]byte(stringValue)) < int(*currentSubSchema.minLength) {
+			result.addInternalError(
+				new(StringLengthGTEError),
+				context,
+				value,
+				ErrorDetails{"min": *currentSubSchema.minLength},
+			)
+		}
+	}
+	if currentSubSchema.maxLength != nil {
+		if utf8.RuneCount([]byte(stringValue)) > int(*currentSubSchema.maxLength) {
+			result.addInternalError(
+				new(StringLengthLTEError),
+				context,
+				value,
+				ErrorDetails{"max": *currentSubSchema.maxLength},
+			)
+		}
+	}
+
+	// pattern:
+	if currentSubSchema.pattern != nil {
+		if !currentSubSchema.pattern.MatchString(stringValue) {
+			result.addInternalError(
+				new(DoesNotMatchPatternError),
+				context,
+				value,
+				ErrorDetails{"pattern": currentSubSchema.pattern},
+			)
+
+		}
+	}
+
+	// format
+	if currentSubSchema.format != "" {
+		if !FormatCheckers.IsFormat(currentSubSchema.format, stringValue) {
+			result.addInternalError(
+				new(DoesNotMatchFormatError),
+				context,
+				value,
+				ErrorDetails{"format": currentSubSchema.format},
+			)
+		}
+	}
+
+	result.incrementScore()
+}
+
+func (v *subSchema) validateNumber(currentSubSchema *subSchema, value interface{}, result *Result, context *JsonContext) {
+
+	// Ignore non numbers
+	if !isJSONNumber(value) {
+		return
+	}
+
+	if internalLogEnabled {
+		internalLog("validateNumber %s", context.String())
+		internalLog(" %v", value)
+	}
+
+	number := value.(json.Number)
+	float64Value, _ := new(big.Rat).SetString(string(number))
+
+	// multipleOf:
+	if currentSubSchema.multipleOf != nil {
+		if q := new(big.Rat).Quo(float64Value, currentSubSchema.multipleOf); !q.IsInt() {
+			result.addInternalError(
+				new(MultipleOfError),
+				context,
+				number,
+				ErrorDetails{
+					"multiple": new(big.Float).SetRat(currentSubSchema.multipleOf),
+				},
+			)
+		}
+	}
+
+	//maximum & exclusiveMaximum:
+	if currentSubSchema.maximum != nil {
+		if float64Value.Cmp(currentSubSchema.maximum) == 1 {
+			result.addInternalError(
+				new(NumberLTEError),
+				context,
+				number,
+				ErrorDetails{
+					"max": new(big.Float).SetRat(currentSubSchema.maximum),
+				},
+			)
+		}
+	}
+	if currentSubSchema.exclusiveMaximum != nil {
+		if float64Value.Cmp(currentSubSchema.exclusiveMaximum) >= 0 {
+			result.addInternalError(
+				new(NumberLTError),
+				context,
+				number,
+				ErrorDetails{
+					"max": new(big.Float).SetRat(currentSubSchema.exclusiveMaximum),
+				},
+			)
+		}
+	}
+
+	//minimum & exclusiveMinimum:
+	if currentSubSchema.minimum != nil {
+		if float64Value.Cmp(currentSubSchema.minimum) == -1 {
+			result.addInternalError(
+				new(NumberGTEError),
+				context,
+				number,
+				ErrorDetails{
+					"min": new(big.Float).SetRat(currentSubSchema.minimum),
+				},
+			)
+		}
+	}
+	if currentSubSchema.exclusiveMinimum != nil {
+		if float64Value.Cmp(currentSubSchema.exclusiveMinimum) <= 0 {
+			result.addInternalError(
+				new(NumberGTError),
+				context,
+				number,
+				ErrorDetails{
+					"min": new(big.Float).SetRat(currentSubSchema.exclusiveMinimum),
+				},
+			)
+		}
+	}
+
+	// format
+	if currentSubSchema.format != "" {
+		if !FormatCheckers.IsFormat(currentSubSchema.format, float64Value) {
+			result.addInternalError(
+				new(DoesNotMatchFormatError),
+				context,
+				value,
+				ErrorDetails{"format": currentSubSchema.format},
+			)
+		}
+	}
+
+	result.incrementScore()
+}