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json_config_test.go
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json_config_test.go
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//Copyright 2016 lyobzik
//
//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.
package config
import (
"errors"
"fmt"
"testing"
"github.com/stretchr/testify/require"
)
var (
oneLevelJSONConfig = `{"stringElement": "value", "boolElement": true,
"floatElement": 1.23456, "intElement": 123456,
"stringElements": ["value1", "value2", "value3"],
"boolElements": [true, false, true],
"floatElements": [1.23, 4.56, 7.89],
"intElements": [123, 456, 789],
"timeElement": "2006-01-02T15:04:05+07:00",
"durationElement": "2h45m5s150ms",
"timeElements": ["2006-01-02T15:04:05+07:00", "2015-01-02T01:15:45Z", "1999-12-31T23:59:59+00:00"],
"durationElements": ["1h", "1h15m30s450ms", "1s750ms"]}`
twoLevelJSONConfig = fmt.Sprintf(`{"first": %[1]s, "second": %[1]s}`, oneLevelJSONConfig)
manyLevelJSONConfig = fmt.Sprintf(`{"root": {"child1": %[1]s, "child": {"grandchild": %[1]s}},
"root1": {"child": %[1]s}}`, twoLevelJSONConfig)
)
func equalJSONTest(t *testing.T, data string, path string, functors Functors) {
config, err := newJSONConfig([]byte(data))
require.NoError(t, err, "Cannot parse json-config")
value, err := functors.Getter(config, path)
require.NoError(t, err, "Cannot get value of '%s'", path)
functors.Checker(t, value)
}
// Tests.
func TestCreateEmptyJson(t *testing.T) {
_, err := newJSONConfig([]byte("{}"))
require.NoError(t, err, "Cannot parse empty json-config")
}
func TestOneLevelJson(t *testing.T) {
for element, functors := range elementFunctors {
equalJSONTest(t, oneLevelJSONConfig, element, functors)
}
}
func TestTwoLevelJson(t *testing.T) {
for element, functors := range elementFunctors {
equalJSONTest(t, twoLevelJSONConfig, joinPath("first", element), functors)
equalJSONTest(t, twoLevelJSONConfig, joinPath("second", element), functors)
}
}
func TestManyLevelJson(t *testing.T) {
for element, functors := range elementFunctors {
equalJSONTest(t, manyLevelJSONConfig, joinPath("/root/child/grandchild/first", element), functors)
equalJSONTest(t, manyLevelJSONConfig, joinPath("/root/child/grandchild/second", element), functors)
}
}
func TestManyLevelJsonLoadValue(t *testing.T) {
config, err := newJSONConfig([]byte(manyLevelJSONConfig))
require.NoError(t, err, "Cannot parse json-config")
value := configData{}
err = LoadValueIgnoringMissingFieldErrors(config, "/root/child/grandchild/first", &value)
require.NoError(t, err, "Cannot load value from config")
value.Check(t)
}
func TestJsonGetEmptyStrings(t *testing.T) {
config, err := newJSONConfig([]byte(`{"stringElements": []}`))
require.NoError(t, err, "Cannot parse json-config")
value, err := config.GetStrings("/stringElements", defaultArrayDelimiter)
require.NoError(t, err, "Cannot get value")
require.Empty(t, value)
}
func TestJsonGetFloatAsInt(t *testing.T) {
config, err := newJSONConfig([]byte(`{"intElement": 1.0, "intElements": [1.0, 2.0, 3.0]}`))
require.NoError(t, err, "Cannot parse json-config")
intValue, err := config.GetInt("/intElement")
require.NoError(t, err, "Cannot get value")
require.Equal(t, intValue, int64(1))
intValues, err := config.GetInts("/intElements", defaultArrayDelimiter)
require.NoError(t, err, "Cannot get value")
require.Equal(t, intValues, []int64{1, 2, 3})
}
func TestJsonGrabValue(t *testing.T) {
config, err := newJSONConfig([]byte(oneLevelJSONConfig))
require.NoError(t, err, "Cannot parse json-config")
var intValue int64
var convertingError error
err = config.GrabValue("/intElement", func(data interface{}) error {
intValue, convertingError = parseJSONInt(data)
return nil
})
require.NoError(t, err, "Cannot grab value from json-config")
require.NoError(t, convertingError, "Cannot convert intElement to int")
checkIntValue(t, intValue)
}
func TestJsonGrabValues(t *testing.T) {
config, err := newJSONConfig([]byte(oneLevelJSONConfig))
require.NoError(t, err, "Cannot parse json-config")
var intValues []int64
err = config.GrabValues("/intElements", defaultArrayDelimiter,
func(length int) { intValues = make([]int64, 0, length) },
func(data interface{}) error {
value, err := parseJSONInt(data)
if err != nil {
return err
}
intValues = append(intValues, value)
return nil
})
require.NoError(t, err, "Cannot grab value from json-config")
checkIntValues(t, intValues)
}
// Negative tests.
func TestIncorrectJsonConfig(t *testing.T) {
_, err := newJSONConfig([]byte("{"))
require.Error(t, err, "Incorrect json-config parsed successfully")
}
func TestJsonGetValueEmptyPath(t *testing.T) {
config, err := newJSONConfig([]byte(`{"element": "value"}`))
require.NoError(t, err, "Cannot parse json-config")
for _, functors := range elementFunctors {
_, err = functors.Getter(config, "")
require.EqualError(t, err, ErrorNotFound.Error())
}
}
func TestJsonGetAbsentValue(t *testing.T) {
config, err := newJSONConfig([]byte(`{"element": "value"}`))
require.NoError(t, err, "Cannot parse json-config")
for _, functors := range elementFunctors {
_, err = functors.Getter(config, "/root")
require.Error(t, err, ErrorNotFound.Error())
}
}
func TestJsonGetValueOfIncorrectType(t *testing.T) {
config, err := newJSONConfig([]byte(oneLevelJSONConfig))
require.NoError(t, err, "Cannot parse json-config")
_, err = config.GetBool("/stringElement")
require.Error(t, err, ErrorIncorrectValueType.Error(), "Incorrect value parsed successfully")
_, err = config.GetInt("/stringElement")
require.Error(t, err, ErrorIncorrectValueType.Error(), "Incorrect value parsed successfully")
_, err = config.GetFloat("/stringElement")
require.Error(t, err, ErrorIncorrectValueType.Error(), "Incorrect value parsed successfully")
_, err = config.GetBools("/stringElement", defaultArrayDelimiter)
require.Error(t, err, ErrorIncorrectValueType.Error(), "Incorrect value parsed successfully")
_, err = config.GetInts("/stringElement", defaultArrayDelimiter)
require.Error(t, err, ErrorIncorrectValueType.Error(), "Incorrect value parsed successfully")
_, err = config.GetFloats("/stringElement", defaultArrayDelimiter)
require.Error(t, err, ErrorIncorrectValueType.Error(), "Incorrect value parsed successfully")
_, err = config.GetBools("/stringElements", defaultArrayDelimiter)
require.Error(t, err, ErrorIncorrectValueType.Error(), "Incorrect value parsed successfully")
_, err = config.GetInts("/stringElements", defaultArrayDelimiter)
require.Error(t, err, ErrorIncorrectValueType.Error(), "Incorrect value parsed successfully")
_, err = config.GetFloats("/stringElements", defaultArrayDelimiter)
require.Error(t, err, ErrorIncorrectValueType.Error(), "Incorrect value parsed successfully")
_, err = config.GetInt("/floatElement")
require.Error(t, err, ErrorIncorrectValueType.Error(), "Incorrect value parsed successfully")
_, err = config.GetInts("/floatElements", defaultArrayDelimiter)
require.Error(t, err, ErrorIncorrectValueType.Error(), "Incorrect value parsed successfully")
}
func TestJsonGrabAbsentValue(t *testing.T) {
config, err := newJSONConfig([]byte(oneLevelJSONConfig))
require.NoError(t, err, "Cannot parse json-config")
executed := false
err = config.GrabValue("/absentElement", func(data interface{}) error {
executed = true
return nil
})
require.EqualError(t, err, ErrorNotFound.Error())
require.Equal(t, false, executed, "Value grabber must not be executed")
}
func TestJsonGrabAbsentValues(t *testing.T) {
config, err := newJSONConfig([]byte(oneLevelJSONConfig))
require.NoError(t, err, "Cannot parse json-config")
executed := false
err = config.GrabValues("/absentElement", defaultArrayDelimiter,
func(length int) { executed = true },
func(data interface{}) error {
executed = true
return nil
})
require.EqualError(t, err, ErrorNotFound.Error())
require.Equal(t, false, executed, "Value grabber must not be executed")
}
func TestJsonGrabValuePassError(t *testing.T) {
config, err := newJSONConfig([]byte(oneLevelJSONConfig))
require.NoError(t, err, "Cannot parse json-config")
expectedError := errors.New("TestJsonGrabValuePassError error")
err = config.GrabValue("/intElement", func(data interface{}) error {
return expectedError
})
require.EqualError(t, err, expectedError.Error())
}
func TestJsonGrabValuesPassError(t *testing.T) {
config, err := newJSONConfig([]byte(oneLevelJSONConfig))
require.NoError(t, err, "Cannot parse json-config")
expectedError := errors.New("TestJsonGrabValuesPassError error")
err = config.GrabValues("/intElements", defaultArrayDelimiter,
func(length int) {},
func(data interface{}) error {
return expectedError
})
require.EqualError(t, err, expectedError.Error())
}
func TestJsonGrabValuesOfSingleElement(t *testing.T) {
config, err := newJSONConfig([]byte(oneLevelJSONConfig))
require.NoError(t, err, "Cannot parse json-config")
err = config.GrabValues("/intElement", defaultArrayDelimiter,
func(length int) {},
func(data interface{}) error {
return nil
})
require.EqualError(t, err, ErrorIncorrectValueType.Error())
}
func TestJsonIncorrectInnerData(t *testing.T) {
config := &jsonConfig{data: 1}
for element, functors := range elementFunctors {
_, err := functors.Getter(config, element)
require.EqualError(t, err, ErrorNotFound.Error())
}
}
// Parser tests.
func TestParseJsonString(t *testing.T) {
value, err := parseJSONString(expectedStringValue)
require.NoError(t, err, "Cannot parse json string")
checkStringValue(t, value)
for _, expected := range []interface{}{expectedBoolValue,
expectedFloatValue, expectedInt8Value, expectedInt16Value, expectedIntValue} {
value, err = parseJSONString(expected)
require.NoError(t, err, fmt.Sprintf("Cannot parse value %v as string", expected))
require.Equal(t, fmt.Sprintf("%v", expected), value)
}
_, err = parseJSONString(expectedStringValues)
require.EqualError(t, err, ErrorIncorrectValueType.Error())
}
func TestParseJsonBool(t *testing.T) {
value, err := parseJSONBool(expectedBoolValue)
require.NoError(t, err, "Cannot parse json bool")
checkBoolValue(t, value)
_, err = parseJSONBool(expectedStringValue)
require.EqualError(t, err, ErrorIncorrectValueType.Error())
_, err = parseJSONBool(expectedBoolValues)
require.EqualError(t, err, ErrorIncorrectValueType.Error())
}
func TestParseJsonFloat(t *testing.T) {
value, err := parseJSONFloat(expectedFloatValue)
require.NoError(t, err, "Cannot parse json float")
checkFloatValue(t, value)
_, err = parseJSONFloat(expectedStringValue)
require.EqualError(t, err, ErrorIncorrectValueType.Error())
_, err = parseJSONFloat(expectedFloatValues)
require.EqualError(t, err, ErrorIncorrectValueType.Error())
}
func TestParseJsonInt(t *testing.T) {
value, err := parseJSONInt(expectedIntValue)
require.NoError(t, err, "Cannot parse json int")
checkIntValue(t, value)
value, err = parseJSONInt(int(expectedIntValue))
require.NoError(t, err, "Cannot parse json int")
checkIntValue(t, value)
value, err = parseJSONInt(float64(expectedIntValue))
require.NoError(t, err, "Cannot parse json int")
checkIntValue(t, value)
_, err = parseJSONInt(float64(expectedIntValue) + 0.00000001)
require.EqualError(t, err, ErrorIncorrectValueType.Error())
_, err = parseJSONInt(expectedStringValue)
require.EqualError(t, err, ErrorIncorrectValueType.Error())
_, err = parseJSONInt(expectedIntValues)
require.EqualError(t, err, ErrorIncorrectValueType.Error())
}
// Test GetConfigPart
func TestJsonGetConfigPartRootFromRoot(t *testing.T) {
rootConfig, err := newJSONConfig([]byte(twoLevelJSONConfig))
require.Nil(t, err, "Cannot parse root json-config")
configPart, err := rootConfig.GetConfigPart("/")
require.Nil(t, err, "Cannot get config part")
require.Equal(t, rootConfig, configPart, "Not equal configs")
}
func TestJsonGetConfigPartSectionFromRoot(t *testing.T) {
rootConfig, err := newJSONConfig([]byte(manyLevelJSONConfig))
require.NoError(t, err, "Cannot parse root json-config")
expectedConfig, err := newJSONConfig([]byte(oneLevelJSONConfig))
require.NoError(t, err, "Cannot parse expected json-config")
configPart, err := rootConfig.GetConfigPart("/root/child/grandchild/first")
require.NoError(t, err, "Cannot get config part")
require.Equal(t, configPart, expectedConfig, "Not equal configs")
}
func TestJsonGetConfigPartSectionFromSection(t *testing.T) {
rootConfig, err := newJSONConfig([]byte(manyLevelJSONConfig))
require.NoError(t, err, "Cannot parse root json-config")
configSection, err := rootConfig.GetConfigPart("/root/child/grandchild/first")
require.NoError(t, err, "Cannot get config section")
configPart, err := configSection.GetConfigPart("/")
require.NoError(t, err, "Cannot get config part")
require.Equal(t, configSection, configPart, "Not equal configs")
}
func TestJsonGetConfigPartWithLongPath(t *testing.T) {
rootConfig, err := newJSONConfig([]byte(manyLevelJSONConfig))
require.NoError(t, err, "Cannot parse root json-config")
configSection, err := rootConfig.GetConfigPart("/root/child/grandchild")
require.NoError(t, err, "Cannot get config section")
_, err = rootConfig.GetConfigPart("/root/child/grandchild/first/stringElement/element")
require.EqualError(t, err, ErrorNotFound.Error())
_, err = configSection.GetConfigPart("/first/stringElement/element")
require.EqualError(t, err, ErrorNotFound.Error())
}
func TestJsonGetAbsentConfigPart(t *testing.T) {
config, err := newJSONConfig([]byte(manyLevelJSONConfig))
require.NoError(t, err, "Cannot parse json-config")
_, err = config.GetConfigPart("/third")
require.Error(t, err, ErrorNotFound.Error())
_, err = config.GetConfigPart("/root/child/grandchild/third")
require.Error(t, err, ErrorNotFound.Error())
}