Function TestWithMessagef

errors_test.go:208–225

(t *testing.T)

}

func TestWithMessagef(t *testing.T) {
	tests := []struct {
		err     error
		message string
		want    string
	}{
		{io.EOF, "read error", "read error: EOF"},
		{WithMessagef(io.EOF, "read error without format specifier"), "client error", "client error: read error without format specifier: EOF"},
		{WithMessagef(io.EOF, "read error with %d format specifier", 1), "client error", "client error: read error with 1 format specifier: EOF"},
	}

	for _, tt := range tests {
		got := WithMessagef(tt.err, tt.message).Error()
		if got != tt.want {
			t.Errorf("WithMessage(%v, %q): got: %q, want %q", tt.err, tt.message, got, tt.want)
		}
	}
}

// errors.New, etc values are not expected to be compared by value
// but the change in errors#27 made them incomparable. Assert that