refactor: extract types and pkgs to new files

internal/util/util.go

@@ -0,0 +1,64 @@
+package util
+
+func SliceEqual(s1, s2 []string) bool {
+	if len(s1) != len(s2) {
+		return false
+	}
+
+	for i := range s1 {
+		if s1[i] != s2[i] {
+			return false
+		}
+	}
+
+	return true
+}
+
+func SliceSubtract(a1, a2 []string) []string {
+	a := []string{}
+
+	for _, e1 := range a1 {
+		found := false
+
+		for _, e2 := range a2 {
+			if e1 == e2 {
+				found = true
+				break
+			}
+		}
+
+		if !found {
+			a = append(a, e1)
+		}
+	}
+
+	return a
+}
+
+func StringMapSubtract(m1, m2 map[string]string) map[string]string {
+	m := map[string]string{}
+
+	for k1, v1 := range m1 {
+		if v2, ok := m2[k1]; ok {
+			if v2 != v1 {
+				m[k1] = v1
+			}
+		} else {
+			m[k1] = v1
+		}
+	}
+
+	return m
+}
+
+func StructMapSubtract(m1, m2 map[string]struct{}) map[string]struct{} {
+	m := map[string]struct{}{}
+
+	for k1, v1 := range m1 {
+		if _, ok := m2[k1]; !ok {
+			m[k1] = v1
+		}
+	}
+
+	return m
+}

internal/util/util_test.go

@@ -0,0 +1,66 @@
+package util
+
+import (
+	"github.com/stretchr/testify/assert"
+	"testing"
+)
+
+
+
+func TestSliceEqual_True(t *testing.T) {
+	s1 := []string{"a", "b", "c"}
+	s2 := []string{"a", "b", "c"}
+
+	result := SliceEqual(s1, s2)
+
+	assert.True(t, result)
+}
+
+func TestSliceEqual_DifferentLengths(t *testing.T) {
+	s1 := []string{"a", "b", "c"}
+	s2 := []string{"a", "b", "c", "d"}
+
+	result := SliceEqual(s1, s2)
+
+	assert.False(t, result)
+}
+
+func TestSliceEqual_DifferentContents(t *testing.T) {
+	s1 := []string{"a", "b", "c"}
+	s2 := []string{"a", "b", "d"}
+
+	result := SliceEqual(s1, s2)
+
+	assert.False(t, result)
+}
+
+func TestSliceSubtract(t *testing.T) {
+	a1 := []string{"a", "b", "c"}
+	a2 := []string{"a", "c"}
+
+	result := SliceSubtract(a1, a2)
+	assert.Equal(t, []string{"b"}, result)
+	assert.Equal(t, []string{"a", "b", "c"}, a1)
+	assert.Equal(t, []string{"a", "c"}, a2)
+}
+
+func TestStringMapSubtract(t *testing.T) {
+	m1 := map[string]string{"a": "a", "b": "b", "c": "sea"}
+	m2 := map[string]string{"a": "a", "c": "c"}
+
+	result := StringMapSubtract(m1, m2)
+	assert.Equal(t, map[string]string{"b": "b", "c": "sea"}, result)
+	assert.Equal(t, map[string]string{"a": "a", "b": "b", "c": "sea"}, m1)
+	assert.Equal(t, map[string]string{"a": "a", "c": "c"}, m2)
+}
+
+func TestStructMapSubtract(t *testing.T) {
+	x := struct{}{}
+	m1 := map[string]struct{}{"a": x, "b": x, "c": x}
+	m2 := map[string]struct{}{"a": x, "c": x}
+
+	result := StructMapSubtract(m1, m2)
+	assert.Equal(t, map[string]struct{}{"b": x}, result)
+	assert.Equal(t, map[string]struct{}{"a": x, "b": x, "c": x}, m1)
+	assert.Equal(t, map[string]struct{}{"a": x, "c": x}, m2)
+}