go.charczuk.com@v0.0.0-20240327042549-bc490516bd1a/sdk/assert/its_empty.go (about)

     1  /*
     2  
     3  Copyright (c) 2023 - Present. Will Charczuk. All rights reserved.
     4  Use of this source code is governed by a MIT license that can be found in the LICENSE file at the root of the repository.
     5  
     6  */
     7  
     8  package assert
     9  
    10  import "testing"
    11  
    12  // ItsEmpty is an assertion helper.
    13  //
    14  // It will test that the given value is empty, printing
    15  // the value if the value has a string form.
    16  func ItsEmpty(t *testing.T, v any, message ...any) {
    17  	t.Helper()
    18  	if Len(v) != 0 {
    19  		Fatalf(t, "expected value to be empty, was %v", []any{v}, message)
    20  	}
    21  }
    22  
    23  // ItsNotEmpty is an assertion helper.
    24  //
    25  // It will test that the given value is not empty.
    26  func ItsNotEmpty(t *testing.T, v any, message ...any) {
    27  	t.Helper()
    28  	if Len(v) == 0 {
    29  		Fatalf(t, "expected value to not be empty", nil, message)
    30  	}
    31  }
    32  
    33  // ItsLen is an assertion helper.
    34  //
    35  // It will test that the given value has a given length.
    36  func ItsLen(t *testing.T, v interface{}, expected int, message ...any) {
    37  	t.Helper()
    38  	if vl := Len(v); vl != expected {
    39  		Fatalf(t, "expected value to have length %d, was %d", []any{expected, vl}, message)
    40  	}
    41  }