etl/test/test_format_spec.cpp

/******************************************************************************
The MIT License(MIT)

Embedded Template Library.
https://github.com/ETLCPP/etl
https://www.etlcpp.com

Copyright(c) 2019 John Wellbelove

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files(the "Software"), to deal
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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******************************************************************************/

#include "unit_test_framework.h"

#include <ostream>
#include <sstream>
#include <iomanip>

#include "etl/format_spec.h"
#include "etl/wformat_spec.h"
#include "etl/u16format_spec.h"
#include "etl/u32format_spec.h"

namespace
{
  SUITE(test_format_spec)
  {
    //*************************************************************************
    TEST(test_default_format)
    {
      etl::format_spec format;

      CHECK_EQUAL(10,    format.get_base());
      CHECK_EQUAL(' ',   format.get_fill());
      CHECK_EQUAL(0,     format.get_precision());
      CHECK_EQUAL(0,     format.get_width());
      CHECK_EQUAL(false, format.is_boolalpha());
      CHECK_EQUAL(false, format.is_left());
      CHECK_EQUAL(true,  format.is_right());
      CHECK_EQUAL(false, format.is_show_base());
      CHECK_EQUAL(false, format.is_upper_case());
    }

    //*************************************************************************
    TEST(test_constexpr_parameterised_format)
    {
      constexpr etl::format_spec format(16U, 4, 6, true, false, true, false, '?');

      CHECK_EQUAL(16, format.get_base());
      CHECK_EQUAL('?', format.get_fill());
      CHECK_EQUAL(6, format.get_precision());
      CHECK_EQUAL(4, format.get_width());
      CHECK_EQUAL(true, format.is_boolalpha());
      CHECK_EQUAL(false, format.is_left());
      CHECK_EQUAL(true, format.is_right());
      CHECK_EQUAL(false, format.is_show_base());
      CHECK_EQUAL(true, format.is_upper_case());
    }

    //*************************************************************************
    TEST(test_format)
    {
      etl::format_spec format;

      format.base(16).boolalpha(true).fill('?').left().precision(6).show_base(true).upper_case(true).width(10);

      CHECK_EQUAL(16,    format.get_base());
      CHECK_EQUAL('?',   format.get_fill());
      CHECK_EQUAL(6,     format.get_precision());
      CHECK_EQUAL(10,    format.get_width());
      CHECK_EQUAL(true,  format.is_boolalpha());
      CHECK_EQUAL(true,  format.is_left());
      CHECK_EQUAL(false, format.is_right());
      CHECK_EQUAL(true,  format.is_show_base());
      CHECK_EQUAL(true,  format.is_upper_case());
    }

        //*************************************************************************
#if ETL_USING_CPP11
    TEST(test_format_rvalue_ref_qualifiers)
    {
      // Test chaining on temporary (rvalue)
      auto format = etl::format_spec()
                      .base(16)
                      .boolalpha(true)
                      .fill('*')
                      .left()
                      .precision(3)
                      .show_base(true)
                      .upper_case(true)
                      .width(8);

      CHECK_EQUAL(16,    format.get_base());
      CHECK_EQUAL('*',   format.get_fill());
      CHECK_EQUAL(3,     format.get_precision());
      CHECK_EQUAL(8,     format.get_width());
      CHECK_EQUAL(true,  format.is_boolalpha());
      CHECK_EQUAL(true,  format.is_left());
      CHECK_EQUAL(false, format.is_right());
      CHECK_EQUAL(true,  format.is_show_base());
      CHECK_EQUAL(true,  format.is_upper_case());
    }

    //*************************************************************************
    TEST(test_format_lvalue_ref_qualifiers)
    {
      // Test chaining on lvalue
      etl::format_spec format;
      
      format.hex().boolalpha(true).fill('#').right().precision(5).show_base(false).upper_case(false).width(12);

      CHECK_EQUAL(16,    format.get_base());
      CHECK_EQUAL('#',   format.get_fill());
      CHECK_EQUAL(5,     format.get_precision());
      CHECK_EQUAL(12,    format.get_width());
      CHECK_EQUAL(true,  format.is_boolalpha());
      CHECK_EQUAL(false, format.is_left());
      CHECK_EQUAL(true,  format.is_right());
      CHECK_EQUAL(false, format.is_show_base());
      CHECK_EQUAL(false, format.is_upper_case());
    }

    //*************************************************************************
    TEST(test_format_base_methods)
    {
      // Test binary
      auto format_bin = etl::format_spec().binary().width(8).fill('0');
      CHECK_EQUAL(2, format_bin.get_base());
      CHECK_EQUAL(8, format_bin.get_width());
      CHECK_EQUAL('0', format_bin.get_fill());

      // Test octal
      auto format_oct = etl::format_spec().octal().width(6);
      CHECK_EQUAL(8, format_oct.get_base());
      CHECK_EQUAL(6, format_oct.get_width());

      // Test decimal
      auto format_dec = etl::format_spec().decimal().precision(2);
      CHECK_EQUAL(10, format_dec.get_base());
      CHECK_EQUAL(2, format_dec.get_precision());

      // Test hex
      auto format_hex = etl::format_spec().hex().upper_case(true);
      CHECK_EQUAL(16, format_hex.get_base());
      CHECK_EQUAL(true, format_hex.is_upper_case());
    }

    //*************************************************************************
    TEST(test_format_mixed_lvalue_rvalue)
    {
      // Create as rvalue, then use as lvalue
      auto format = etl::format_spec().hex().width(8);
      
      // Continue chaining on lvalue
      format.fill('0').upper_case(true).show_base(true);

      CHECK_EQUAL(16,   format.get_base());
      CHECK_EQUAL('0',  format.get_fill());
      CHECK_EQUAL(8,    format.get_width());
      CHECK_EQUAL(true, format.is_upper_case());
      CHECK_EQUAL(true, format.is_show_base());
    }
#endif

    //*************************************************************************
#if ETL_USING_CPP14
    TEST(test_format_constexpr)
    {
      constexpr etl::format_spec format = etl::format_spec().base(16).boolalpha(true).fill('?').left().precision(6).show_base(true).upper_case(true).width(10);

      constexpr int  base       = format.get_base();
      constexpr char fill       = format.get_fill();
      constexpr int  precision  = format.get_precision();
      constexpr int  width      = format.get_width();
      constexpr bool boolalpha  = format.is_boolalpha();
      constexpr bool left       = format.is_left();
      constexpr bool right      = format.is_right();
      constexpr bool show_base  = format.is_show_base();
      constexpr bool upper_case = format.is_upper_case();

      CHECK_EQUAL(16,    base);
      CHECK_EQUAL('?',   fill);
      CHECK_EQUAL(6,     precision);
      CHECK_EQUAL(10,    width);
      CHECK_EQUAL(true,  boolalpha);
      CHECK_EQUAL(true,  left);
      CHECK_EQUAL(false, right);
      CHECK_EQUAL(true,  show_base);
      CHECK_EQUAL(true,  upper_case);
    }
#endif
  }
}