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WalkthroughThe changes add several new validation functions in the validator module. The Changes
Sequence Diagram(s)sequenceDiagram
participant C as Client
participant V as Validator
participant R as Reflect
C->>V: Call IsIn or IsNotIn with value & list of values
V->>V: Check if value is nil
alt Value is nil
V-->>C: Return error ("value is nil")
else
V->>R: Compare value with list items using reflect.DeepEqual
R-->>V: Return comparison result
alt Match found in IsIn
V-->>C: Return success (or error for IsNotIn)
else
V-->>C: Return error (or success for IsNotIn)
end
end
sequenceDiagram
participant C as Client
participant AV as Array Validator
participant I as Iterator
C->>AV: Call IsInArray or IsNotInArray with value & array/slice
AV->>AV: Verify value is not nil and argument is an array/slice
alt Verification fails
AV-->>C: Return error ("invalid input" or "value is nil")
else
AV->>I: Iterate over array elements
I-->>AV: Report match result
alt Matching condition met in IsInArray
AV-->>C: Return success (or error for IsNotInArray)
else
AV-->>C: Return error (or success for IsNotInArray)
end
end
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Actionable comments posted: 0
🧹 Nitpick comments (3)
validator/is.go (2)
116-134: The IsInArray implementation correctly validates array membership.This function properly validates if a value exists in an array using reflection. The error message could be improved to include contextual information about which value was not found.
Consider enhancing the error message to include the value being checked:
- return fmt.Errorf("value must be one of %v", array) + return fmt.Errorf("value %v must be one of %v", value, array)
136-154: The IsNotInArray implementation has similar error message opportunity.The function correctly validates that a value is not in an array, but could benefit from a more descriptive error message.
Consider enhancing the error message to include the value that was unexpectedly found:
- return fmt.Errorf("value must not be one of %v", array) + return fmt.Errorf("value %v must not be one of %v", value, array)validator/is_test.go (1)
136-154: Tests for IsInArray cover key scenarios.Test cases verify behavior with valid values, nil values, values not in the array, and different types. One observation: line 146 has a test case labeled "wrong type" but it's just testing a value not in the array, which is already covered by the previous test case.
The "wrong type" test case is testing the same behavior as the "invalid value" test. Consider renaming or testing with a value of a different type that might be handled differently:
- {"wrong type", 123, errors.New("value must be one of [apple banana cherry]")}, + {"numeric value", 123, errors.New("value must be one of [apple banana cherry]")},
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📒 Files selected for processing (3)
validator/is.go(1 hunks)validator/is_test.go(1 hunks)validator/transformers_test.go(1 hunks)
🔇 Additional comments (5)
validator/transformers_test.go (1)
174-174: New test case enhances Replace transformer testing.The added test case validates the Replace transformer's behavior with multiple occurrences of the substring, ensuring it replaces all instances of "foo" with "bar" in the string.
validator/is.go (2)
87-92: Improved input validation for IsIn.The addition of a nil check enhances robustness by explicitly handling nil values. Using reflect.DeepEqual is a good change as it enables correct comparison of complex types.
100-114: The IsNotIn implementation aligns with PR objectives.The function correctly validates that a value is not in a list of disallowed values. It handles nil values appropriately and provides clear error messages.
validator/is_test.go (2)
116-134: Tests for IsNotIn cover key scenarios.The test cases appropriately verify the validator's behavior with valid inputs, nil values, disallowed values, and different types. The test structure aligns with the project's conventions.
156-174: Tests for IsNotInArray are consistent with other validators.The test cases properly verify the validator's behavior with valid values, nil values, forbidden values, and different types.
1 participant
Descriptions of the Functions
IsNotIn
Purpose: Validates that a given value is not present in a predefined list of disallowed values.
How It Works: It takes a variadic list of disallowedValues (of type interface{}) and checks if the input value matches any of them using ==. If a match is found, it returns an error; otherwise, it returns nil.
Error Message: "value must not be one of %v", where %v is the list of disallowed values.
Use Case: Useful for ensuring a value isn’t one of a specific set (e.g., banning certain strings like "admin" or "root").
Limitations: The comparison uses ==, which might not work as expected for complex types (e.g., slices or structs) unless they’re comparable.
IsInArray
Purpose: Validates that a given value is present in a provided array or slice.
How It Works: It uses reflection (reflect.ValueOf) to iterate over the elements of the input array (of type interface{}) and checks if the value matches any element using Interface() == value. Returns nil if found, or an error if not.
Error Message: "value is not in the array".
Use Case: Ensures a value is within an allowed set (e.g., a dropdown menu’s options).
Limitations: The error message doesn’t reflect the array’s contents, and reflection can be slow for large arrays.
IsNotInArray
Purpose: Validates that a given value is not present in a provided array or slice.
How It Works: Similar to IsInArray, it iterates over the array using reflection. If the value matches any element, it returns an error; otherwise, it returns nil.
Error Message: "value is in the array".
Use Case: Ensures a value isn’t in a forbidden list (e.g., excluding reserved keywords).
Limitations: Same as IsInArray—error message lacks context, and reflection is used.
Summary by CodeRabbit
New Features
Tests