validation_test.ExampleBoolProperty - Code Metrics - Inspection of "Merge pull request #47 from muonsoft/tests-updated" - muonsoft/validation - Measure and Improve Code Quality continuously with Scrutinizer

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by Rushan

created 2021-05-18 18:35 UTC

validation_test.ExampleBoolProperty A

↳ Parent: examples_test.go

Complexity

Conditions

Size

Total Lines	10
Code Lines	7

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
cc	1
eloc	7
nop	0
dl	0
loc	10
rs	10
c	0
b	0
f	0

package validation_test

import (
	"context"
	"fmt"
	"log"
	"regexp"
	"time"

	languagepkg "github.com/muonsoft/language"
	"github.com/muonsoft/validation"
	"github.com/muonsoft/validation/it"
	"github.com/muonsoft/validation/message/translations/russian"
	"github.com/muonsoft/validation/validator"
	"golang.org/x/text/feature/plural"
	"golang.org/x/text/language"
	"golang.org/x/text/message/catalog"
)

func ExampleValue() {
	v := ""
	err := validator.Validate(validation.Value(v, it.IsNotBlank()))
	fmt.Println(err)
	// Output:
	// violation: This value should not be blank.
}

func ExamplePropertyValue() {
	v := Book{Title: ""}
	err := validator.Validate(
		validation.PropertyValue("title", v.Title, it.IsNotBlank()),
	)
	fmt.Println(err)
	// Output:
	// violation at 'title': This value should not be blank.
}

func ExampleBool() {
	v := false
	err := validator.Validate(validation.Bool(&v, it.IsTrue()))
	fmt.Println(err)
	// Output:
	// violation: This value should be true.
}

func ExampleBoolProperty() {
	v := struct {
		IsPublished bool
	}{
		IsPublished: false,
	}
	err := validator.Validate(
		validation.BoolProperty("isPublished", &v.IsPublished, it.IsTrue()),
	)
	fmt.Println(err)
	// Output:
	// violation at 'isPublished': This value should be true.
}

func ExampleNumber() {
	v := 5
	err := validator.Validate(validation.Number(&v, it.IsGreaterThanInteger(5)))
	fmt.Println(err)
	// Output:
	// violation: This value should be greater than 5.
}

func ExampleNumberProperty() {
	v := struct {
		Count int
	}{
		Count: 5,
	}
	err := validator.Validate(
		validation.NumberProperty("count", &v.Count, it.IsGreaterThanInteger(5)),
	)
	fmt.Println(err)
	// Output:
	// violation at 'count': This value should be greater than 5.
}

func ExampleString() {
	v := ""
	err := validator.Validate(validation.String(&v, it.IsNotBlank()))
	fmt.Println(err)
	// Output:
	// violation: This value should not be blank.
}

func ExampleStringProperty() {
	v := Book{Title: ""}
	err := validator.Validate(
		validation.StringProperty("title", &v.Title, it.IsNotBlank()),
	)
	fmt.Println(err)
	// Output:
	// violation at 'title': This value should not be blank.
}

func ExampleIterable() {
	v := make([]string, 0)
	err := validator.Validate(validation.Iterable(v, it.IsNotBlank()))
	fmt.Println(err)
	// Output:
	// violation: This value should not be blank.
}

func ExampleIterableProperty() {
	v := Product{Tags: []string{}}
	err := validator.Validate(
		validation.IterableProperty("tags", v.Tags, it.IsNotBlank()),
	)
	fmt.Println(err)
	// Output:
	// violation at 'tags': This value should not be blank.
}

func ExampleCountable() {
	s := []string{"a", "b"}
	err := validator.Validate(validation.Countable(len(s), it.HasMinCount(3)))
	fmt.Println(err)
	// Output:
	// violation: This collection should contain 3 elements or more.
}

func ExampleCountableProperty() {
	v := Product{Tags: []string{"a", "b"}}
	err := validator.Validate(
		validation.CountableProperty("tags", len(v.Tags), it.HasMinCount(3)),
	)
	fmt.Println(err)
	// Output:
	// violation at 'tags': This collection should contain 3 elements or more.
}

func ExampleTime() {
	t := time.Now()
	compared, _ := time.Parse(time.RFC3339, "2006-01-02T15:00:00Z")
	err := validator.Validate(
		validation.Time(&t, it.IsEarlierThan(compared)),
	)
	fmt.Println(err)
	// Output:
	// violation: This value should be earlier than 2006-01-02T15:00:00Z.
}

func ExampleTimeProperty() {
	v := struct {
		CreatedAt time.Time
	}{
		CreatedAt: time.Now(),
	}
	compared, _ := time.Parse(time.RFC3339, "2006-01-02T15:00:00Z")
	err := validator.Validate(
		validation.TimeProperty("createdAt", &v.CreatedAt, it.IsEarlierThan(compared)),
	)
	fmt.Println(err)
	// Output:
	// violation at 'createdAt': This value should be earlier than 2006-01-02T15:00:00Z.
}

func ExampleEach() {
	v := []string{""}
	err := validator.Validate(validation.Each(v, it.IsNotBlank()))
	fmt.Println(err)
	// Output:
	// violation at '[0]': This value should not be blank.
}

func ExampleEachProperty() {
	v := Product{Tags: []string{""}}
	err := validator.Validate(
		validation.EachProperty("tags", v.Tags, it.IsNotBlank()),
	)
	fmt.Println(err)
	// Output:
	// violation at 'tags[0]': This value should not be blank.
}

func ExampleEachString() {
	v := []string{""}
	err := validator.Validate(validation.EachString(v, it.IsNotBlank()))
	fmt.Println(err)
	// Output:
	// violation at '[0]': This value should not be blank.
}

func ExampleEachStringProperty() {
	v := Product{Tags: []string{""}}
	err := validator.Validate(
		validation.EachStringProperty("tags", v.Tags, it.IsNotBlank()),
	)
	fmt.Println(err)
	// Output:
	// violation at 'tags[0]': This value should not be blank.
}

func ExampleNewCustomStringConstraint() {
	validate := func(s string) bool {
		return s == "valid"
	}
	constraint := validation.NewCustomStringConstraint(
		validate,
		"ExampleConstraint", // constraint name
		"exampleCode",       // violation code
		"Unexpected value.", // violation message template
	)

	s := "foo"
	err := validator.ValidateString(&s, constraint)

	fmt.Println(err)
	// Output:
	// violation: Unexpected value.
}

func ExampleConditionalConstraint_Then() {
	v := "foo"
	err := validator.ValidateString(
		&v,
		validation.When(true).
			Then(
				it.Matches(regexp.MustCompile(`^\w+$`)),
			),
	)
	fmt.Println(err)
	// Output:
	// <nil>
}

func ExampleConditionalConstraint_Else() {
	v := "123"
	err := validator.ValidateString(
		&v,
		validation.When(false).
			Then(
				it.Matches(regexp.MustCompile(`^\w+$`)),
			).
			Else(
				it.Matches(regexp.MustCompile(`^\d+$`)),
			),
	)
	fmt.Println(err)
	// Output:
	// <nil>
}

func ExampleSequentially() {
	title := "bar"

	err := validator.ValidateString(
		&title,
		validation.Sequentially(
			it.IsBlank(),
			it.HasMinLength(5),
		),
	)

	violations := err.(validation.ViolationList)
	for _, violation := range violations {
		fmt.Println(violation.Error())
	}
	// Output:
	// violation: This value should be blank.
}

func ExampleValidator_Validate_basicValidation() {
	s := ""

	validator, err := validation.NewValidator()
	if err != nil {
		log.Fatal(err)
	}
	err = validator.Validate(validation.String(&s, it.IsNotBlank()))

	violations := err.(validation.ViolationList)
	for _, violation := range violations {
		fmt.Println(violation.Error())
	}
	// Output:
	// violation: This value should not be blank.
}

func ExampleValidator_Validate_singletonValidator() {
	s := ""

	err := validator.Validate(validation.String(&s, it.IsNotBlank()))

	violations := err.(validation.ViolationList)
	for _, violation := range violations {
		fmt.Println(violation.Error())
	}
	// Output:
	// violation: This value should not be blank.
}

func ExampleValidator_ValidateString_shorthandAlias() {
	s := ""

	err := validator.ValidateString(&s, it.IsNotBlank())

	violations := err.(validation.ViolationList)
	for _, violation := range violations {
		fmt.Println(violation.Error())
	}
	// Output:
	// violation: This value should not be blank.
}

func ExampleValidator_Validate_conditionalValidationOnConstraint() {
	notes := []struct {
		Title    string
		IsPublic bool
		Text     string
	}{
		{Title: "published note", IsPublic: true, Text: "text of published note"},
		{Title: "draft note", IsPublic: true, Text: ""},
	}

	for i, note := range notes {
		err := validator.Validate(
			validation.StringProperty("name", &note.Title, it.IsNotBlank()),
			validation.StringProperty("text", &note.Text, it.IsNotBlank().When(note.IsPublic)),
		)
		if err != nil {
			violations := err.(validation.ViolationList)
			for _, violation := range violations {
				fmt.Printf("error on note %d: %s", i, violation.Error())
			}
		}
	}

	// Output:
	// error on note 1: violation at 'text': This value should not be blank.
}

func ExampleValidator_Validate_passingPropertyPathViaOptions() {
	s := ""

	err := validator.Validate(
		validation.String(
			&s,
			validation.PropertyName("properties"),
			validation.ArrayIndex(1),
			validation.PropertyName("tag"),
			it.IsNotBlank(),
		),
	)

	violation := err.(validation.ViolationList)[0]
	fmt.Println("property path:", violation.PropertyPath().String())
	// Output:
	// property path: properties[1].tag
}

func ExampleValidator_Validate_propertyPathWithScopedValidator() {
	s := ""

	err := validator.
		AtProperty("properties").
		AtIndex(1).
		AtProperty("tag").
		Validate(validation.String(&s, it.IsNotBlank()))

	violation := err.(validation.ViolationList)[0]
	fmt.Println("property path:", violation.PropertyPath().String())
	// Output:
	// property path: properties[1].tag
}

func ExampleValidator_Validate_propertyPathBySpecialArgument() {
	s := ""

	err := validator.Validate(
		// this is an alias for
		// validation.String(&s, validation.PropertyName("property"), it.IsNotBlank()),
		validation.StringProperty("property", &s, it.IsNotBlank()),
	)

	violation := err.(validation.ViolationList)[0]
	fmt.Println("property path:", violation.PropertyPath().String())
	// Output:
	// property path: property
}

func ExampleValidator_AtProperty() {
	book := &Book{Title: ""}

	err := validator.AtProperty("book").Validate(
		validation.StringProperty("title", &book.Title, it.IsNotBlank()),
	)

	violation := err.(validation.ViolationList)[0]
	fmt.Println("property path:", violation.PropertyPath().String())
	// Output:
	// property path: book.title
}

func ExampleValidator_AtIndex() {
	books := []Book{{Title: ""}}

	err := validator.AtIndex(0).Validate(
		validation.StringProperty("title", &books[0].Title, it.IsNotBlank()),
	)

	violation := err.(validation.ViolationList)[0]
	fmt.Println("property path:", violation.PropertyPath().String())
	// Output:
	// property path: [0].title
}

func ExampleValidator_Validate_translationsByDefaultLanguage() {
	validator, err := validation.NewValidator(
		validation.Translations(russian.Messages),
		validation.DefaultLanguage(language.Russian),
	)
	if err != nil {
		log.Fatal(err)
	}

	s := ""
	err = validator.ValidateString(&s, it.IsNotBlank())

	violations := err.(validation.ViolationList)
	for _, violation := range violations {
		fmt.Println(violation.Error())
	}
	// Output:
	// violation: Значение не должно быть пустым.
}

func ExampleValidator_Validate_translationsByArgument() {
	validator, err := validation.NewValidator(
		validation.Translations(russian.Messages),
	)
	if err != nil {
		log.Fatal(err)
	}

	s := ""
	err = validator.Validate(
		validation.Language(language.Russian),
		validation.String(&s, it.IsNotBlank()),
	)

	violations := err.(validation.ViolationList)
	for _, violation := range violations {
		fmt.Println(violation.Error())
	}
	// Output:
	// violation: Значение не должно быть пустым.
}

func ExampleValidator_Validate_translationsByContextArgument() {
	validator, err := validation.NewValidator(
		validation.Translations(russian.Messages),
	)
	if err != nil {
		log.Fatal(err)
	}

	s := ""
	ctx := languagepkg.WithContext(context.Background(), language.Russian)
	err = validator.Validate(
		validation.Context(ctx),
		validation.String(&s, it.IsNotBlank()),
	)

	violations := err.(validation.ViolationList)
	for _, violation := range violations {
		fmt.Println(violation.Error())
	}
	// Output:
	// violation: Значение не должно быть пустым.
}

func ExampleValidator_Validate_translationsByContextValidator() {
	validator, err := validation.NewValidator(
		validation.Translations(russian.Messages),
	)
	if err != nil {
		log.Fatal(err)
	}
	ctx := languagepkg.WithContext(context.Background(), language.Russian)
	validator = validator.WithContext(ctx)

	s := ""
	err = validator.ValidateString(&s, it.IsNotBlank())

	violations := err.(validation.ViolationList)
	for _, violation := range violations {
		fmt.Println(violation.Error())
	}
	// Output:
	// violation: Значение не должно быть пустым.
}

func ExampleValidator_Validate_customizingErrorMessage() {
	s := ""

	err := validator.ValidateString(&s, it.IsNotBlank().Message("this value is required"))

	violations := err.(validation.ViolationList)
	for _, violation := range violations {
		fmt.Println(violation.Error())
	}
	// Output:
	// violation: this value is required
}

func ExampleValidator_Validate_translationForCustomMessage() {
	const customMessage = "tags should contain more than {{ limit }} element(s)"
	validator, err := validation.NewValidator(
		validation.Translations(map[language.Tag]map[string]catalog.Message{
			language.Russian: {
				customMessage: plural.Selectf(1, "",
					plural.One, "теги должны содержать {{ limit }} элемент и более",
					plural.Few, "теги должны содержать более {{ limit }} элемента",
					plural.Other, "теги должны содержать более {{ limit }} элементов"),
			},
		}),
	)
	if err != nil {
		log.Fatal(err)
	}

	var tags []string
	err = validator.Validate(
		validation.Language(language.Russian),
		validation.Iterable(tags, it.HasMinCount(1).MinMessage(customMessage)),
	)

	violations := err.(validation.ViolationList)
	for _, violation := range violations {
		fmt.Println(violation.Error())
	}
	// Output:
	// violation: теги должны содержать 1 элемент и более
}


1			package validation_test
2
3			import (
4			"context"
5			"fmt"
6			"log"
7			"regexp"
8			"time"
9
10			languagepkg "github.com/muonsoft/language"
11			"github.com/muonsoft/validation"
12			"github.com/muonsoft/validation/it"
13			"github.com/muonsoft/validation/message/translations/russian"
14			"github.com/muonsoft/validation/validator"
15			"golang.org/x/text/feature/plural"
16			"golang.org/x/text/language"
17			"golang.org/x/text/message/catalog"
18			)
19
20			func ExampleValue() {
21			v := ""
22			err := validator.Validate(validation.Value(v, it.IsNotBlank()))
23			fmt.Println(err)
24			// Output:
25			// violation: This value should not be blank.
26			}
27
28			func ExamplePropertyValue() {
29			v := Book{Title: ""}
30			err := validator.Validate(
31			validation.PropertyValue("title", v.Title, it.IsNotBlank()),
32			)
33			fmt.Println(err)
34			// Output:
35			// violation at 'title': This value should not be blank.
36			}
37
38			func ExampleBool() {
39			v := false
40			err := validator.Validate(validation.Bool(&v, it.IsTrue()))
41			fmt.Println(err)
42			// Output:
43			// violation: This value should be true.
44			}
45
46			func ExampleBoolProperty() {
47			v := struct {
48			IsPublished bool
49			}{
50			IsPublished: false,
51			}
52			err := validator.Validate(
53			validation.BoolProperty("isPublished", &v.IsPublished, it.IsTrue()),
54			)
55			fmt.Println(err)
56			// Output:
57			// violation at 'isPublished': This value should be true.
58			}
59
60			func ExampleNumber() {
61			v := 5
62			err := validator.Validate(validation.Number(&v, it.IsGreaterThanInteger(5)))
63			fmt.Println(err)
64			// Output:
65			// violation: This value should be greater than 5.
66			}
67
68			func ExampleNumberProperty() {
69			v := struct {
70			Count int
71			}{
72			Count: 5,
73			}
74			err := validator.Validate(
75			validation.NumberProperty("count", &v.Count, it.IsGreaterThanInteger(5)),
76			)
77			fmt.Println(err)
78			// Output:
79			// violation at 'count': This value should be greater than 5.
80			}
81
82			func ExampleString() {
83			v := ""
84			err := validator.Validate(validation.String(&v, it.IsNotBlank()))
85			fmt.Println(err)
86			// Output:
87			// violation: This value should not be blank.
88			}
89
90			func ExampleStringProperty() {
91			v := Book{Title: ""}
92			err := validator.Validate(
93			validation.StringProperty("title", &v.Title, it.IsNotBlank()),
94			)
95			fmt.Println(err)
96			// Output:
97			// violation at 'title': This value should not be blank.
98			}
99
100			func ExampleIterable() {
101			v := make([]string, 0)
102			err := validator.Validate(validation.Iterable(v, it.IsNotBlank()))
103			fmt.Println(err)
104			// Output:
105			// violation: This value should not be blank.
106			}
107
108			func ExampleIterableProperty() {
109			v := Product{Tags: []string{}}
110			err := validator.Validate(
111			validation.IterableProperty("tags", v.Tags, it.IsNotBlank()),
112			)
113			fmt.Println(err)
114			// Output:
115			// violation at 'tags': This value should not be blank.
116			}
117
118			func ExampleCountable() {
119			s := []string{"a", "b"}
120			err := validator.Validate(validation.Countable(len(s), it.HasMinCount(3)))
121			fmt.Println(err)
122			// Output:
123			// violation: This collection should contain 3 elements or more.
124			}
125
126			func ExampleCountableProperty() {
127			v := Product{Tags: []string{"a", "b"}}
128			err := validator.Validate(
129			validation.CountableProperty("tags", len(v.Tags), it.HasMinCount(3)),
130			)
131			fmt.Println(err)
132			// Output:
133			// violation at 'tags': This collection should contain 3 elements or more.
134			}
135
136			func ExampleTime() {
137			t := time.Now()
138			compared, _ := time.Parse(time.RFC3339, "2006-01-02T15:00:00Z")
139			err := validator.Validate(
140			validation.Time(&t, it.IsEarlierThan(compared)),
141			)
142			fmt.Println(err)
143			// Output:
144			// violation: This value should be earlier than 2006-01-02T15:00:00Z.
145			}
146
147			func ExampleTimeProperty() {
148			v := struct {
149			CreatedAt time.Time
150			}{
151			CreatedAt: time.Now(),
152			}
153			compared, _ := time.Parse(time.RFC3339, "2006-01-02T15:00:00Z")
154			err := validator.Validate(
155			validation.TimeProperty("createdAt", &v.CreatedAt, it.IsEarlierThan(compared)),
156			)
157			fmt.Println(err)
158			// Output:
159			// violation at 'createdAt': This value should be earlier than 2006-01-02T15:00:00Z.
160			}
161
162			func ExampleEach() {
163			v := []string{""}
164			err := validator.Validate(validation.Each(v, it.IsNotBlank()))
165			fmt.Println(err)
166			// Output:
167			// violation at '[0]': This value should not be blank.
168			}
169
170			func ExampleEachProperty() {
171			v := Product{Tags: []string{""}}
172			err := validator.Validate(
173			validation.EachProperty("tags", v.Tags, it.IsNotBlank()),
174			)
175			fmt.Println(err)
176			// Output:
177			// violation at 'tags[0]': This value should not be blank.
178			}
179
180			func ExampleEachString() {
181			v := []string{""}
182			err := validator.Validate(validation.EachString(v, it.IsNotBlank()))
183			fmt.Println(err)
184			// Output:
185			// violation at '[0]': This value should not be blank.
186			}
187
188			func ExampleEachStringProperty() {
189			v := Product{Tags: []string{""}}
190			err := validator.Validate(
191			validation.EachStringProperty("tags", v.Tags, it.IsNotBlank()),
192			)
193			fmt.Println(err)
194			// Output:
195			// violation at 'tags[0]': This value should not be blank.
196			}
197
198			func ExampleNewCustomStringConstraint() {
199			validate := func(s string) bool {
200			return s == "valid"
201			}
202			constraint := validation.NewCustomStringConstraint(
203			validate,
204			"ExampleConstraint", // constraint name
205			"exampleCode", // violation code
206			"Unexpected value.", // violation message template
207			)
208
209			s := "foo"
210			err := validator.ValidateString(&s, constraint)
211
212			fmt.Println(err)
213			// Output:
214			// violation: Unexpected value.
215			}
216
217			func ExampleConditionalConstraint_Then() {
218			v := "foo"
219			err := validator.ValidateString(
220			&v,
221			validation.When(true).
222			Then(
223			it.Matches(regexp.MustCompile(`^\w+$`)),
224			),
225			)
226			fmt.Println(err)
227			// Output:
228			// <nil>
229			}
230
231			func ExampleConditionalConstraint_Else() {
232			v := "123"
233			err := validator.ValidateString(
234			&v,
235			validation.When(false).
236			Then(
237			it.Matches(regexp.MustCompile(`^\w+$`)),
238			).
239			Else(
240			it.Matches(regexp.MustCompile(`^\d+$`)),
241			),
242			)
243			fmt.Println(err)
244			// Output:
245			// <nil>
246			}
247
248			func ExampleSequentially() {
249			title := "bar"
250
251			err := validator.ValidateString(
252			&title,
253			validation.Sequentially(
254			it.IsBlank(),
255			it.HasMinLength(5),
256			),
257			)
258
259			violations := err.(validation.ViolationList)
260			for _, violation := range violations {
261			fmt.Println(violation.Error())
262			}
263			// Output:
264			// violation: This value should be blank.
265			}
266
267			func ExampleValidator_Validate_basicValidation() {
268			s := ""
269
270			validator, err := validation.NewValidator()
271			if err != nil {
272			log.Fatal(err)
273			}
274			err = validator.Validate(validation.String(&s, it.IsNotBlank()))
275
276			violations := err.(validation.ViolationList)
277			for _, violation := range violations {
278			fmt.Println(violation.Error())
279			}
280			// Output:
281			// violation: This value should not be blank.
282			}
283
284			func ExampleValidator_Validate_singletonValidator() {
285			s := ""
286
287			err := validator.Validate(validation.String(&s, it.IsNotBlank()))
288
289			violations := err.(validation.ViolationList)
290			for _, violation := range violations {
291			fmt.Println(violation.Error())
292			}
293			// Output:
294			// violation: This value should not be blank.
295			}
296
297			func ExampleValidator_ValidateString_shorthandAlias() {
298			s := ""
299
300			err := validator.ValidateString(&s, it.IsNotBlank())
301
302			violations := err.(validation.ViolationList)
303			for _, violation := range violations {
304			fmt.Println(violation.Error())
305			}
306			// Output:
307			// violation: This value should not be blank.
308			}
309
310			func ExampleValidator_Validate_conditionalValidationOnConstraint() {
311			notes := []struct {
312			Title string
313			IsPublic bool
314			Text string
315			}{
316			{Title: "published note", IsPublic: true, Text: "text of published note"},
317			{Title: "draft note", IsPublic: true, Text: ""},
318			}
319
320			for i, note := range notes {
321			err := validator.Validate(
322			validation.StringProperty("name", &note.Title, it.IsNotBlank()),
323			validation.StringProperty("text", &note.Text, it.IsNotBlank().When(note.IsPublic)),
324			)
325			if err != nil {
326			violations := err.(validation.ViolationList)
327			for _, violation := range violations {
328			fmt.Printf("error on note %d: %s", i, violation.Error())
329			}
330			}
331			}
332
333			// Output:
334			// error on note 1: violation at 'text': This value should not be blank.
335			}
336
337			func ExampleValidator_Validate_passingPropertyPathViaOptions() {
338			s := ""
339
340			err := validator.Validate(
341			validation.String(
342			&s,
343			validation.PropertyName("properties"),
344			validation.ArrayIndex(1),
345			validation.PropertyName("tag"),
346			it.IsNotBlank(),
347			),
348			)
349
350			violation := err.(validation.ViolationList)[0]
351			fmt.Println("property path:", violation.PropertyPath().String())
352			// Output:
353			// property path: properties[1].tag
354			}
355
356			func ExampleValidator_Validate_propertyPathWithScopedValidator() {
357			s := ""
358
359			err := validator.
360			AtProperty("properties").
361			AtIndex(1).
362			AtProperty("tag").
363			Validate(validation.String(&s, it.IsNotBlank()))
364
365			violation := err.(validation.ViolationList)[0]
366			fmt.Println("property path:", violation.PropertyPath().String())
367			// Output:
368			// property path: properties[1].tag
369			}
370
371			func ExampleValidator_Validate_propertyPathBySpecialArgument() {
372			s := ""
373
374			err := validator.Validate(
375			// this is an alias for
376			// validation.String(&s, validation.PropertyName("property"), it.IsNotBlank()),
377			validation.StringProperty("property", &s, it.IsNotBlank()),
378			)
379
380			violation := err.(validation.ViolationList)[0]
381			fmt.Println("property path:", violation.PropertyPath().String())
382			// Output:
383			// property path: property
384			}
385
386			func ExampleValidator_AtProperty() {
387			book := &Book{Title: ""}
388
389			err := validator.AtProperty("book").Validate(
390			validation.StringProperty("title", &book.Title, it.IsNotBlank()),
391			)
392
393			violation := err.(validation.ViolationList)[0]
394			fmt.Println("property path:", violation.PropertyPath().String())
395			// Output:
396			// property path: book.title
397			}
398
399			func ExampleValidator_AtIndex() {
400			books := []Book{{Title: ""}}
401
402			err := validator.AtIndex(0).Validate(
403			validation.StringProperty("title", &books[0].Title, it.IsNotBlank()),
404			)
405
406			violation := err.(validation.ViolationList)[0]
407			fmt.Println("property path:", violation.PropertyPath().String())
408			// Output:
409			// property path: [0].title
410			}
411
412			func ExampleValidator_Validate_translationsByDefaultLanguage() {
413			validator, err := validation.NewValidator(
414			validation.Translations(russian.Messages),
415			validation.DefaultLanguage(language.Russian),
416			)
417			if err != nil {
418			log.Fatal(err)
419			}
420
421			s := ""
422			err = validator.ValidateString(&s, it.IsNotBlank())
423
424			violations := err.(validation.ViolationList)
425			for _, violation := range violations {
426			fmt.Println(violation.Error())
427			}
428			// Output:
429			// violation: Значение не должно быть пустым.
430			}
431
432			func ExampleValidator_Validate_translationsByArgument() {
433			validator, err := validation.NewValidator(
434			validation.Translations(russian.Messages),
435			)
436			if err != nil {
437			log.Fatal(err)
438			}
439
440			s := ""
441			err = validator.Validate(
442			validation.Language(language.Russian),
443			validation.String(&s, it.IsNotBlank()),
444			)
445
446			violations := err.(validation.ViolationList)
447			for _, violation := range violations {
448			fmt.Println(violation.Error())
449			}
450			// Output:
451			// violation: Значение не должно быть пустым.
452			}
453
454			func ExampleValidator_Validate_translationsByContextArgument() {
455			validator, err := validation.NewValidator(
456			validation.Translations(russian.Messages),
457			)
458			if err != nil {
459			log.Fatal(err)
460			}
461
462			s := ""
463			ctx := languagepkg.WithContext(context.Background(), language.Russian)
464			err = validator.Validate(
465			validation.Context(ctx),
466			validation.String(&s, it.IsNotBlank()),
467			)
468
469			violations := err.(validation.ViolationList)
470			for _, violation := range violations {
471			fmt.Println(violation.Error())
472			}
473			// Output:
474			// violation: Значение не должно быть пустым.
475			}
476
477			func ExampleValidator_Validate_translationsByContextValidator() {
478			validator, err := validation.NewValidator(
479			validation.Translations(russian.Messages),
480			)
481			if err != nil {
482			log.Fatal(err)
483			}
484			ctx := languagepkg.WithContext(context.Background(), language.Russian)
485			validator = validator.WithContext(ctx)
486
487			s := ""
488			err = validator.ValidateString(&s, it.IsNotBlank())
489
490			violations := err.(validation.ViolationList)
491			for _, violation := range violations {
492			fmt.Println(violation.Error())
493			}
494			// Output:
495			// violation: Значение не должно быть пустым.
496			}
497
498			func ExampleValidator_Validate_customizingErrorMessage() {
499			s := ""
500
501			err := validator.ValidateString(&s, it.IsNotBlank().Message("this value is required"))
502
503			violations := err.(validation.ViolationList)
504			for _, violation := range violations {
505			fmt.Println(violation.Error())
506			}
507			// Output:
508			// violation: this value is required
509			}
510
511			func ExampleValidator_Validate_translationForCustomMessage() {
512			const customMessage = "tags should contain more than {{ limit }} element(s)"
513			validator, err := validation.NewValidator(
514			validation.Translations(map[language.Tag]map[string]catalog.Message{
515			language.Russian: {
516			customMessage: plural.Selectf(1, "",
517			plural.One, "теги должны содержать {{ limit }} элемент и более",
518			plural.Few, "теги должны содержать более {{ limit }} элемента",
519			plural.Other, "теги должны содержать более {{ limit }} элементов"),
520			},
521			}),
522			)
523			if err != nil {
524			log.Fatal(err)
525			}
526
527			var tags []string
528			err = validator.Validate(
529			validation.Language(language.Russian),
530			validation.Iterable(tags, it.HasMinCount(1).MinMessage(customMessage)),
531			)
532
533			violations := err.(validation.ViolationList)
534			for _, violation := range violations {
535			fmt.Println(violation.Error())
536			}
537			// Output:
538			// violation: теги должны содержать 1 элемент и более
539			}
540

muonsoft / validation

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