feat: Add IsOneOf routine

values/one_of.go

@@ -0,0 +1,11 @@
+package values
+
+// IsOneOf returns if src is equals to any of the items contained in cmpValues variadic slice.
+func IsOneOf[T comparable](src T, cmpValues ...T) bool {
+	for _, comparison := range cmpValues {
+		if src == comparison {
+			return true
+		}
+	}
+	return false
+}

values/one_of_test.go

@@ -0,0 +1,74 @@
+package values_test
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+
+	"github.com/neutrinocorp/nolan/values"
+)
+
+func TestIsOneOf(t *testing.T) {
+	tests := []struct {
+		name       string
+		inBaseCase string
+		inOneOf    []string
+		exp        bool
+	}{
+		{
+			name:       "both empty",
+			inBaseCase: "",
+			inOneOf:    nil,
+			exp:        false,
+		},
+		{
+			name:       "one of nil",
+			inBaseCase: "foo",
+			inOneOf:    nil,
+			exp:        false,
+		},
+		{
+			name:       "base empty",
+			inBaseCase: "",
+			inOneOf:    []string{"foo"},
+			exp:        false,
+		},
+		{
+			name:       "single not equal",
+			inBaseCase: "foo",
+			inOneOf:    []string{"bar"},
+			exp:        false,
+		},
+		{
+			name:       "multi not equal",
+			inBaseCase: "foo",
+			inOneOf:    []string{"bar", "baz", "foobar"},
+			exp:        false,
+		},
+		{
+			name:       "single equal",
+			inBaseCase: "foo",
+			inOneOf:    []string{"foo"},
+			exp:        true,
+		},
+		{
+			name:       "multi one equal",
+			inBaseCase: "foo",
+			inOneOf:    []string{"bar", "baz", "foo"},
+			exp:        true,
+		},
+		{
+			name:       "multi all equal",
+			inBaseCase: "foo",
+			inOneOf:    []string{"foo", "foo", "foo"},
+			exp:        true,
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			out := values.IsOneOf(tt.inBaseCase, tt.inOneOf...)
+			assert.Equal(t, tt.exp, out)
+		})
+	}
+}