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| package util_test
import (
"fmt"
"reflect"
"testing"
"github.com/pkg/errors"
"{{{ .Package }}}/app/util"
)
func TestStringArrayMaxLength(t *testing.T) {
t.Parallel()
tests := []struct {
name string
input []string
expected int
}{
{name: "empty array", input: []string{}, expected: 0},
{name: "single element", input: []string{"hello"}, expected: 5},
{name: "multiple elements with same length", input: []string{"abc", "def", "ghi"}, expected: 3},
{name: "multiple elements with different lengths", input: []string{"a", "abc", "abcde"}, expected: 5},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
t.Parallel()
result := util.StringArrayMaxLength(tt.input)
if result != tt.expected {
t.Errorf("StringArrayMaxLength() = %v, want %v", result, tt.expected)
}
})
}
}
func TestArrayToStringArray(t *testing.T) {
t.Parallel()
tests := []struct {
name string
input []any
expected []string
}{
{name: "empty array", input: []any{}, expected: []string{}},
{name: "integers", input: []any{1, 2, 3}, expected: []string{"1", "2", "3"}},
{name: "mixed types", input: []any{1, "hello", true, 3.14}, expected: []string{"1", "hello", "true", "3.14"}},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
t.Parallel()
anySlice := util.ArrayCopy(tt.input)
result := util.ArrayToStringArray(anySlice)
if !reflect.DeepEqual(result, tt.expected) {
t.Errorf("ArrayToStringArray() = %v, want %v", result, tt.expected)
}
})
}
}
func TestStringArrayQuoted(t *testing.T) {
t.Parallel()
tests := []struct {
name string
input []string
expected []string
}{
{name: "empty array", input: []string{}, expected: []string{}},
{name: "simple strings", input: []string{"hello", "world"}, expected: []string{`"hello"`, `"world"`}},
{name: "strings with quotes", input: []string{`a"b`, `c'd`}, expected: []string{`"a\"b"`, `"c'd"`}},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
t.Parallel()
result := util.StringArrayQuoted(tt.input)
if !reflect.DeepEqual(result, tt.expected) {
t.Errorf("StringArrayQuoted() = %v, want %v", result, tt.expected)
}
})
}
}
func TestStringArrayFromAny(t *testing.T) {
t.Parallel()
tests := []struct {
name string
input []any
maxLength int
expected []string
}{
{name: "empty array", input: []any{}, maxLength: 0, expected: []string{}},
{name: "mixed types no truncation", input: []any{1, "hello", true, []byte("world")}, maxLength: 0, expected: []string{"1", "hello", "true", "world"}},
{name: "with truncation", input: []any{"abcdefghij", "12345"}, maxLength: 5, expected: []string{"abcde... (truncated)", "12345"}},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
t.Parallel()
result := util.StringArrayFromAny(tt.input, tt.maxLength)
if !reflect.DeepEqual(result, tt.expected) {
t.Errorf("StringArrayFromAny() = %v, want %v", result, tt.expected)
}
})
}
}
func TestArrayCopy(t *testing.T) {
t.Parallel()
tests := []struct {
name string
input []int
expected []int
}{
{name: "nil array", input: nil, expected: nil},
{name: "empty array", input: []int{}, expected: []int{}},
{name: "integers", input: []int{1, 2, 3}, expected: []int{1, 2, 3}},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
t.Parallel()
result := util.ArrayCopy(tt.input)
if !reflect.DeepEqual(result, tt.expected) {
t.Errorf("ArrayCopy() = %v, want %v", result, tt.expected)
}
if len(tt.input) > 0 {
original := make([]int, len(tt.input))
copy(original, tt.input)
tt.input[0] = 999
if len(result) > 0 && reflect.DeepEqual(result, tt.input) {
t.Errorf("ArrayCopy() did not create a true copy")
}
copy(tt.input, original)
}
})
}
}
func TestArrayRemoveDuplicates(t *testing.T) {
t.Parallel()
tests := []struct {
name string
input []int
expected []int
}{
{name: "empty array", input: []int{}, expected: []int{}},
{name: "no duplicates", input: []int{1, 2, 3}, expected: []int{1, 2, 3}},
{name: "with duplicates", input: []int{1, 2, 2, 3, 1, 4}, expected: []int{1, 2, 3, 4}},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
t.Parallel()
result := util.ArrayRemoveDuplicates(tt.input)
if len(result) != len(tt.expected) {
t.Errorf("ArrayRemoveDuplicates() length = %v, want %v", len(result), len(tt.expected))
}
resultMap := make(map[int]bool)
for _, v := range result {
resultMap[v] = true
}
expectedMap := make(map[int]bool)
for _, v := range tt.expected {
expectedMap[v] = true
}
for k := range expectedMap {
if !resultMap[k] {
t.Errorf("ArrayRemoveDuplicates() missing expected element %v", k)
}
}
for k := range resultMap {
if !expectedMap[k] {
t.Errorf("ArrayRemoveDuplicates() has unexpected element %v", k)
}
}
})
}
}
func TestArraySorted(t *testing.T) {
t.Parallel()
tests := []struct {
name string
input []int
expected []int
}{
{name: "empty array", input: []int{}, expected: []int{}},
{name: "already sorted", input: []int{1, 2, 3}, expected: []int{1, 2, 3}},
{name: "unsorted", input: []int{3, 1, 2}, expected: []int{1, 2, 3}},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
t.Parallel()
result := util.ArraySorted(tt.input)
if !reflect.DeepEqual(result, tt.expected) {
t.Errorf("ArraySorted() = %v, want %v", result, tt.expected)
}
})
}
}
func TestArrayLimit(t *testing.T) {
t.Parallel()
tests := []struct {
name string
input []int
limit int
expectedArray []int
expectedRest int
}{
{name: "empty array", input: []int{}, limit: 5, expectedArray: []int{}, expectedRest: 0},
{name: "limit larger than array", input: []int{1, 2, 3}, limit: 5, expectedArray: []int{1, 2, 3}, expectedRest: 0},
{name: "limit smaller than array", input: []int{1, 2, 3, 4, 5}, limit: 3, expectedArray: []int{1, 2, 3}, expectedRest: 2},
{name: "limit zero", input: []int{1, 2, 3}, limit: 0, expectedArray: []int{1, 2, 3}, expectedRest: 0},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
t.Parallel()
result, rest := util.ArrayLimit(tt.input, tt.limit)
if !reflect.DeepEqual(result, tt.expectedArray) {
t.Errorf("ArrayLimit() array = %v, want %v", result, tt.expectedArray)
}
if rest != tt.expectedRest {
t.Errorf("ArrayLimit() rest = %v, want %v", rest, tt.expectedRest)
}
})
}
}
func TestStringArrayOxfordComma(t *testing.T) {
t.Parallel()
tests := []struct {
name string
input []string
separator string
expected string
}{
{name: "empty array", input: []string{}, separator: "and", expected: ""},
{name: "single element", input: []string{"apple"}, separator: "and", expected: "apple"},
{name: "two elements", input: []string{"apple", "banana"}, separator: "and", expected: "apple and banana"},
{name: "three elements", input: []string{"apple", "banana", "cherry"}, separator: "and", expected: "apple, banana, and cherry"},
{name: "four elements", input: []string{"apple", "banana", "cherry", "date"}, separator: "or", expected: "apple, banana, cherry, or date"},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
t.Parallel()
result := util.StringArrayOxfordComma(tt.input, tt.separator)
if result != tt.expected {
t.Errorf("StringArrayOxfordComma() = %v, want %v", result, tt.expected)
}
})
}
}
func TestArrayTransform(t *testing.T) {
tx := func(i int) string {
return "x" + string(rune(i+'0'))
}
t.Parallel()
tests := []struct {
name string
input []int
fn func(int) string
expected []string
}{
{name: "empty array", input: []int{}, fn: tx, expected: []string{}},
{name: "transform integers to strings", input: []int{1, 2, 3}, fn: tx, expected: []string{"x1", "x2", "x3"}},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
t.Parallel()
result := util.ArrayTransform(tt.input, tt.fn)
if !reflect.DeepEqual(result, tt.expected) {
t.Errorf("ArrayTransform() = %v, want %v", result, tt.expected)
}
})
}
}
func TestArraySplit(t *testing.T) {
fn := func(i int) bool {
return i%2 == 0
}
t.Parallel()
tests := []struct {
name string
input []int
fn func(int) bool
expectedTrue []int
expectedFalse []int
}{
{name: "empty array", input: []int{}, fn: fn, expectedTrue: []int{}, expectedFalse: []int{}},
{name: "split even/odd", input: []int{1, 2, 3, 4, 5}, fn: fn, expectedTrue: []int{2, 4}, expectedFalse: []int{1, 3, 5}},
{name: "all true", input: []int{2, 4, 6}, fn: fn, expectedTrue: []int{2, 4, 6}, expectedFalse: []int{}},
{name: "all false", input: []int{1, 3, 5}, fn: fn, expectedTrue: []int{}, expectedFalse: []int{1, 3, 5}},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
t.Parallel()
trueResult, falseResult := util.ArraySplit(tt.input, tt.fn)
if len(trueResult) != len(tt.expectedTrue) {
t.Errorf("ArraySplit() true result length = %v, want %v", len(trueResult), len(tt.expectedTrue))
} else {
for i, v := range trueResult {
if i < len(tt.expectedTrue) && v != tt.expectedTrue[i] {
t.Errorf("ArraySplit() true result[%d] = %v, want %v", i, v, tt.expectedTrue[i])
}
}
}
if len(falseResult) != len(tt.expectedFalse) {
t.Errorf("ArraySplit() false result length = %v, want %v", len(falseResult), len(tt.expectedFalse))
} else {
for i, v := range falseResult {
if i < len(tt.expectedFalse) && v != tt.expectedFalse[i] {
t.Errorf("ArraySplit() false result[%d] = %v, want %v", i, v, tt.expectedFalse[i])
}
}
}
})
}
}
func TestArrayRemoveNil(t *testing.T) {
t.Parallel()
i1, i2, i3 := 1, 2, 3
tests := []struct {
name string
input []*int
expected []*int
}{
{name: "empty array", input: []*int{}, expected: []*int{}},
{name: "no nil elements", input: []*int{&i1, &i2, &i3}, expected: []*int{&i1, &i2, &i3}},
{name: "some nil elements", input: []*int{&i1, nil, &i2, nil, &i3}, expected: []*int{&i1, &i2, &i3}},
{name: "all nil elements", input: []*int{nil, nil, nil}, expected: []*int{}},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
t.Parallel()
result := util.ArrayRemoveNil(tt.input)
if len(result) != len(tt.expected) {
t.Errorf("ArrayRemoveNil() length = %v, want %v", len(result), len(tt.expected))
return
}
for i, v := range result {
switch {
case v == nil:
t.Errorf("ArrayRemoveNil() contains nil at index %d", i)
case tt.expected[i] == nil:
t.Errorf("ArrayRemoveNil() expected nil at index %d, got %v", i, *v)
case *v != *tt.expected[i]:
t.Errorf("ArrayRemoveNil() at index %d = %v, want %v", i, *v, *tt.expected[i])
}
}
})
}
}
func TestArrayRemoveEmpty(t *testing.T) {
t.Parallel()
tests := []struct {
name string
input []string
expected []string
}{
{name: "empty array", input: []string{}, expected: []string{}},
{name: "no empty elements", input: []string{"a", "b", "c"}, expected: []string{"a", "b", "c"}},
{name: "some empty elements", input: []string{"a", "", "b", "", "c"}, expected: []string{"a", "b", "c"}},
{name: "all empty elements", input: []string{"", "", ""}, expected: []string{}},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
t.Parallel()
result := util.ArrayRemoveEmpty(tt.input)
if !reflect.DeepEqual(result, tt.expected) {
t.Errorf("ArrayRemoveEmpty() = %v, want %v", result, tt.expected)
}
})
}
intTests := []struct {
name string
input []int
expected []int
}{
{name: "empty array", input: []int{}, expected: []int{}},
{name: "no zero elements", input: []int{1, 2, 3}, expected: []int{1, 2, 3}},
{name: "some zero elements", input: []int{1, 0, 2, 0, 3}, expected: []int{1, 2, 3}},
{name: "all zero elements", input: []int{0, 0, 0}, expected: []int{}},
}
for _, tt := range intTests {
t.Run(tt.name+" (int)", func(t *testing.T) {
t.Parallel()
result := util.ArrayRemoveEmpty(tt.input)
if !reflect.DeepEqual(result, tt.expected) {
t.Errorf("ArrayRemoveEmpty() = %v, want %v", result, tt.expected)
}
})
}
}
func TestArrayDereference(t *testing.T) {
t.Parallel()
i1, i2, i3 := 1, 2, 3
tests := []struct {
name string
input []*int
expected []int
}{
{name: "empty array", input: []*int{}, expected: []int{}},
{name: "simple array", input: []*int{&i1, &i2, &i3}, expected: []int{1, 2, 3}},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
t.Parallel()
result := util.ArrayDereference(tt.input)
if !reflect.DeepEqual(result, tt.expected) {
t.Errorf("ArrayDereference() = %v, want %v", result, tt.expected)
}
})
}
}
func TestLengthAny(t *testing.T) {
t.Parallel()
tests := []struct {
name string
input any
expected int
}{
{name: "empty slice", input: []int{}, expected: 0},
{name: "int slice", input: []int{1, 2, 3}, expected: 3},
{name: "string slice", input: []string{"a", "b", "c"}, expected: 3},
{name: "pointer to slice", input: &[]int{1, 2, 3, 4}, expected: 4},
{name: "array", input: [3]int{1, 2, 3}, expected: 3},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
t.Parallel()
result := util.LengthAny(tt.input)
if result != tt.expected {
t.Errorf("LengthAny() = %v, want %v", result, tt.expected)
}
})
}
}
func TestArrayFromAny(t *testing.T) {
t.Parallel()
tests := []struct {
name string
input any
expected []int
}{
{name: "empty slice", input: []int{}, expected: []int{}},
{name: "int slice", input: []int{1, 2, 3}, expected: []int{1, 2, 3}},
{name: "pointer to slice", input: &[]int{1, 2, 3, 4}, expected: []int{1, 2, 3, 4}},
{name: "array", input: [3]int{1, 2, 3}, expected: []int{1, 2, 3}},
{name: "single value", input: 42, expected: []int{42}},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
t.Parallel()
result := util.ArrayFromAny[int](tt.input)
if !reflect.DeepEqual(result, tt.expected) {
t.Errorf("ArrayFromAny() = %v, want %v", result, tt.expected)
}
})
}
}
func TestArrayTest(t *testing.T) {
t.Parallel()
tests := []struct {
name string
input any
expected bool
}{
{name: "empty slice", input: []int{}, expected: true},
{name: "non-empty slice", input: []int{1, 2, 3}, expected: true},
{name: "array", input: [3]int{1, 2, 3}, expected: true},
{name: "string", input: "not an array", expected: false},
{name: "integer", input: 42, expected: false},
{name: "struct", input: struct{ name string }{"test"}, expected: false},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
t.Parallel()
result := util.ArrayTest(tt.input)
if result != tt.expected {
t.Errorf("ArrayTest() = %v, want %v", result, tt.expected)
}
})
}
}
func TestArrayFlatten(t *testing.T) {
t.Parallel()
tests := []struct {
name string
input [][]int
expected []int
}{
{name: "empty arrays", input: [][]int{}, expected: []int{}},
{name: "single empty array", input: [][]int{{}}, expected: []int{}},
{name: "multiple arrays", input: [][]int{{1, 2}, {3, 4}, {5, 6}}, expected: []int{1, 2, 3, 4, 5, 6}},
{name: "mixed empty and non-empty arrays", input: [][]int{{}, {1, 2}, {}, {3, 4}}, expected: []int{1, 2, 3, 4}},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
t.Parallel()
result := util.ArrayFlatten(tt.input...)
if !reflect.DeepEqual(result, tt.expected) {
t.Errorf("ArrayFlatten() = %v, want %v", result, tt.expected)
}
})
}
}
func TestArrayFirstN(t *testing.T) {
t.Parallel()
tests := []struct {
name string
input []int
n int
expected []int
}{
{name: "empty array", input: []int{}, n: 3, expected: []int{}},
{name: "n larger than array", input: []int{1, 2, 3}, n: 5, expected: []int{1, 2, 3}},
{name: "n smaller than array", input: []int{1, 2, 3, 4, 5}, n: 3, expected: []int{1, 2, 3}},
{name: "n equal to array length", input: []int{1, 2, 3}, n: 3, expected: []int{1, 2, 3}},
{name: "n is zero", input: []int{1, 2, 3}, n: 0, expected: []int{}},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
t.Parallel()
result := util.ArrayFirstN(tt.input, tt.n)
if !reflect.DeepEqual(result, tt.expected) {
t.Errorf("ArrayFirstN() = %v, want %v", result, tt.expected)
}
})
}
}
func TestArrayLastN(t *testing.T) {
t.Parallel()
tests := []struct {
name string
input []int
n int
expected []int
}{
{name: "empty array", input: []int{}, n: 3, expected: []int{}},
{name: "n larger than array", input: []int{1, 2, 3}, n: 5, expected: []int{1, 2, 3}},
{name: "n smaller than array", input: []int{1, 2, 3, 4, 5}, n: 3, expected: []int{3, 4, 5}},
{name: "n equal to array length", input: []int{1, 2, 3}, n: 3, expected: []int{1, 2, 3}},
{name: "n is zero", input: []int{1, 2, 3}, n: 0, expected: []int{}},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
t.Parallel()
result := util.ArrayLastN(tt.input, tt.n)
if !reflect.DeepEqual(result, tt.expected) {
t.Errorf("ArrayLastN() = %v, want %v", result, tt.expected)
}
})
}
}
func TestArrayReplaceOrAdd(t *testing.T) {
chk := func(i int) bool {
return i == 2
}
t.Parallel()
tests := []struct {
name string
input []int
fn func(int) bool
replace int
expected []int
}{
{name: "empty array", input: []int{}, fn: chk, replace: 42, expected: []int{42}},
{name: "element found", input: []int{1, 2, 3}, fn: chk, replace: 42, expected: []int{1, 42, 3}},
{name: "element not found", input: []int{1, 3, 5}, fn: chk, replace: 42, expected: []int{1, 3, 5, 42}},
{name: "multiple matches (should replace first)", input: []int{1, 2, 3, 2, 4}, fn: chk, replace: 42, expected: []int{1, 42, 3, 2, 4}},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
t.Parallel()
result := util.ArrayReplaceOrAdd(tt.input, tt.fn, tt.replace)
if !reflect.DeepEqual(result, tt.expected) {
t.Errorf("ArrayReplaceOrAdd() = %v, want %v", result, tt.expected)
}
})
}
}
func TestMapError(t *testing.T) {
chk := func(i, idx int) (string, error) {
return fmt.Sprintf("x%d", i), nil
}
chk3 := func(i, idx int) (string, error) {
if i == 3 {
return "", errors.Errorf("error at value %d", i)
}
return fmt.Sprintf("x%d", i), nil
}
t.Parallel()
tests := []struct {
name string
input []int
fn func(int, int) (string, error)
expected []string
expectError bool
}{
{name: "empty array", input: []int{}, fn: chk, expected: []string{}},
{name: "no errors", input: []int{1, 2, 3}, fn: chk, expected: []string{"x1", "x2", "x3"}},
{name: "with error", input: []int{1, 2, 3, 4, 5}, fn: chk3, expected: nil, expectError: true},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
t.Parallel()
result, err := util.MapError(tt.input, tt.fn)
if tt.expectError {
if err == nil {
t.Errorf("MapError() expected error but got nil")
}
} else {
if err != nil {
t.Errorf("MapError() unexpected error: %v", err)
}
if !reflect.DeepEqual(result, tt.expected) {
t.Errorf("MapError() = %v, want %v", result, tt.expected)
}
}
})
}
}
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