Function TestSplitLabels

handler/handler_test.go:783–866

(t *testing.T)

}

func TestSplitLabels(t *testing.T) {
	scenarios := map[string]struct {
		input          string
		expectError    bool
		expectedOutput map[string]string
	}{
		"regular labels": {
			input: "/label_name1/label_value1/label_name2/label_value2",
			expectedOutput: map[string]string{
				"label_name1": "label_value1",
				"label_name2": "label_value2",
			},
		},
		"invalid label name": {
			input:       "/label_name1/label_value1/a=b/label_value2",
			expectError: true,
		},
		"reserved label name": {
			input:       "/label_name1/label_value1/__label_name2/label_value2",
			expectError: true,
		},
		"unencoded slash in label value": {
			input:       "/label_name1/label_value1/label_name2/label/value2",
			expectError: true,
		},
		"encoded slash in first label value ": {
			input: "/label_name1@base64/bGFiZWwvdmFsdWUx/label_name2/label_value2",
			expectedOutput: map[string]string{
				"label_name1": "label/value1",
				"label_name2": "label_value2",
			},
		},
		"encoded slash in last label value": {
			input: "/label_name1/label_value1/label_name2@base64/bGFiZWwvdmFsdWUy",
			expectedOutput: map[string]string{
				"label_name1": "label_value1",
				"label_name2": "label/value2",
			},
		},
		"encoded slash in last label value with padding": {
			input: "/label_name1/label_value1/label_name2@base64/bGFiZWwvdmFsdWUy==",
			expectedOutput: map[string]string{
				"label_name1": "label_value1",
				"label_name2": "label/value2",
			},
		},
		"invalid base64 encoding": {
			input:       "/label_name1@base64/foo.bar/label_name2/label_value2",
			expectError: true,
		},
		"regular label and UTF-8 escaped label name with legacy validation": {
			input: "/label_name1/label_value1/U__label_2e_name2/label_value2",
			expectedOutput: map[string]string{
				"label_name1":       "label_value1",
				"U__label_2e_name2": "label_value2",
			},
		},
	}