Function TestDecimal_RoundAndStringFixed

decimal_test.go:1094–1171

(t *testing.T)

}

func TestDecimal_RoundAndStringFixed(t *testing.T) {
	type testData struct {
		input         string
		places        int32
		expected      string
		expectedFixed string
	}
	tests := []testData{
		{"1.454", 0, "1", ""},
		{"1.454", 1, "1.5", ""},
		{"1.454", 2, "1.45", ""},
		{"1.454", 3, "1.454", ""},
		{"1.454", 4, "1.454", "1.4540"},
		{"1.454", 5, "1.454", "1.45400"},
		{"1.554", 0, "2", ""},
		{"1.554", 1, "1.6", ""},
		{"1.554", 2, "1.55", ""},
		{"0.554", 0, "1", ""},
		{"0.454", 0, "0", ""},
		{"0.454", 5, "0.454", "0.45400"},
		{"0", 0, "0", ""},
		{"0", 1, "0", "0.0"},
		{"0", 2, "0", "0.00"},
		{"0", -1, "0", ""},
		{"5", 2, "5", "5.00"},
		{"5", 1, "5", "5.0"},
		{"5", 0, "5", ""},
		{"500", 2, "500", "500.00"},
		{"545", -1, "550", ""},
		{"545", -2, "500", ""},
		{"545", -3, "1000", ""},
		{"545", -4, "0", ""},
		{"499", -3, "0", ""},
		{"499", -4, "0", ""},
	}

	// add negative number tests
	for _, test := range tests {
		expected := test.expected
		if expected != "0" {
			expected = "-" + expected
		}
		expectedStr := test.expectedFixed
		if strings.ContainsAny(expectedStr, "123456789") && expectedStr != "" {
			expectedStr = "-" + expectedStr
		}
		tests = append(tests,
			testData{"-" + test.input, test.places, expected, expectedStr})
	}

	for _, test := range tests {
		d, err := NewFromString(test.input)
		if err != nil {
			t.Fatal(err)
		}

		// test Round
		expected, err := NewFromString(test.expected)