package main

import "testing"

func TestCanInt(t *testing.T) {
	if !CanInt("12345") {
		t.Errorf("Expected valid int conversion of '12345'")
	}
	if CanInt("9.81") {
		t.Errorf("Unexpected int conversion of '9.81', this should return true on CanFloat (not CanInt)")
	}
	if !CanInt("-42") {
		t.Errorf("Expected valid int conversion of '-42'")
	}
	if CanInt("-24-88") {
		t.Errorf("Unexpected int conversion of '-24-88', this should not be allowed as we have 2 '-'")
	}
	if !CanInt("-1234567890") {
		t.Errorf("Expected valid int conversion of '-1234567890'")
	}
	if CanInt("123abc") {
		t.Errorf("Unexpected int conversion of '123abc', contains letters 'abc' which are not numerics")
	}
}

func TestCanFloat(t *testing.T) {
	if !CanFloat("9.81") {
		t.Errorf("Expected valid float conversion of '9.81'")
	}
	if CanFloat("198.164.255.0") {
		t.Errorf("Unexpected float conversion of '198.164.255.0', this is a IP, not a floating value")
	}
	if !CanFloat("-42.0") {
		t.Errorf("Expected valid float conversion of '-42.0'")
	}
	if !CanFloat("1234567890.1234567890") {
		t.Errorf("Expected valid float conversion of '1234567890.1234567890'")
	}
	if CanFloat("-123.-1234") {
		t.Errorf("Unexpected float conversion of '-123.-1234', contains 2 '-'")
	}
	if !CanFloat("0.15") {
		t.Errorf("Expected valid float conversion of '0.15'")
	}
	if !CanFloat(".15") {
		t.Errorf("Expected valid float conversion of '.15'")
	}
	if CanFloat("-123.abc") {
		t.Errorf("Unexpected float conversion of '-123.abc', contains 'abc' which are not numerics")
	}
}

func TestFormatCredits(t *testing.T) {
	if FormatCredit(1000) != "1,000" {
		t.Errorf("Expected '1,000' from 1000, got '%s'", FormatCredit(1000))
	}
	if FormatCredit(10000) != "10,000" {
		t.Errorf("Expected '10,000' from 10000, got '%s'", FormatCredit(10000))
	}
	if FormatCredit(1000000) != "1,000,000" {
		t.Errorf("Expected '1,000,000' from 1000000, got '%s'", FormatCredit(1000000))
	}
	if FormatCredit(-4000) != "-4,000" {
		t.Errorf("Expected '-4,000' from -4000, got '%s'", FormatCredit(-4000))
	}
}