Execute (Setup):
  set shiftwidth=2
  set expandtab

Given tex (Indent: regular tex):
  \documentclass{minimal}
  \usepackage{amsmath}
  \usepackage{tikz}
  \begin{document}

  {
      asdasd
    }

    \end{document}

Do (Indent):
  gg=G

Expect tex (Verify):
  \documentclass{minimal}
  \usepackage{amsmath}
  \usepackage{tikz}
  \begin{document}

  {
    asdasd
  }

  \end{document}

Given tex (Indent: lists):
  \begin{itemize}
  \item item is indented twice
        and the next line is indented to match
  \end{itemize}

  \begin{description}
    \item[One] Ingeniería Electrónica ``first'';
    a couple of lines.
  \item[Doctorado] ``Generic title''
    (Author): commentaries here
  \end{description}

Do (Indent):
  gg=G

Expect tex (Verify):
  \begin{itemize}
    \item item is indented twice
      and the next line is indented to match
  \end{itemize}

  \begin{description}
    \item[One] Ingeniería Electrónica ``first'';
      a couple of lines.
    \item[Doctorado] ``Generic title''
      (Author): commentaries here
  \end{description}

Given tex (Indent: math):
  \[
    1+1
        \]

  \begin{align}
      2+2=4
  \end{align}

  \begin{equation}
     \left(
       f(x) = 3
    \right)
    \left.
        f(x) = 3
  \right.
  \end{equation}

  Test $[ ... )$ of unmatched brackets in
  inline math text.

  In R, there is the operator \verb|[<-|...
  that ...

Do (Indent):
  gg=G

Expect tex (Verify):
  \[
    1+1
  \]

  \begin{align}
    2+2=4
  \end{align}

  \begin{equation}
    \left(
      f(x) = 3
    \right)
    \left.
      f(x) = 3
    \right.
  \end{equation}

  Test $[ ... )$ of unmatched brackets in
  inline math text.

  In R, there is the operator \verb|[<-|...
  that ...

Given tex (Indent: tikz):
  \tikz \fill[green] rectangle (0.5,0.5); Something
      about something.

    \begin{tikzpicture}
       \draw [solid] let \p{I} = (0,0) in (1,1) -|
          (\x{I}-1cm,-1cm) node [yshift=-.25cm] {(i)};
       % Just some comment
       \end{tikzpicture}

       \begin{tikzpicture}
  % (i) center contact head
  \draw [solid] let \p{I} = (centerContactHead) in (centerContactHead) -|
    (\x{I}-.75cm,-2.5)
    node [yshift=-.25cm] {(i)};

  % (ii) outer conductor of the contact head
    \coordinate (outerContactHead) at (.8,-1.7);
    \draw [solid] let \p{O} = (outerContactHead)
      in (outerContactHead) -- (\x{O},-2.5)
        node [yshift=-.25cm] {(ii)};

  \begin{axis}
    \addplot
      table[row sep=crcr]{%
        0       0\\
        1       1\\
        2       2\\
      };
    \end{axis}
       \end{tikzpicture}

Execute (Indent):
  let b:vimtex.packages.tikz = 1
  normal gg=G

Expect tex (Verify):
  \tikz \fill[green] rectangle (0.5,0.5); Something
  about something.

  \begin{tikzpicture}
    \draw [solid] let \p{I} = (0,0) in (1,1) -|
      (\x{I}-1cm,-1cm) node [yshift=-.25cm] {(i)};
    % Just some comment
  \end{tikzpicture}

  \begin{tikzpicture}
    % (i) center contact head
    \draw [solid] let \p{I} = (centerContactHead) in (centerContactHead) -|
      (\x{I}-.75cm,-2.5)
      node [yshift=-.25cm] {(i)};

    % (ii) outer conductor of the contact head
    \coordinate (outerContactHead) at (.8,-1.7);
    \draw [solid] let \p{O} = (outerContactHead)
      in (outerContactHead) -- (\x{O},-2.5)
      node [yshift=-.25cm] {(ii)};

    \begin{axis}
      \addplot
        table[row sep=crcr]{%
          0       0\\
          1       1\\
          2       2\\
        };
    \end{axis}
  \end{tikzpicture}

Given tex (Indent: verbatims):
  \begin{verbatim}
  #!/bin/bash
  echo "test"
      \end{verbatim}

    \begin{lstlisting}
  Indent
    should
      not affect verbatim environments!
      \end{lstlisting}

Do (Indent):
  gg=G

Expect tex (Verify):
  \begin{verbatim}
  #!/bin/bash
  echo "test"
  \end{verbatim}

  \begin{lstlisting}
  Indent
    should
      not affect verbatim environments!
  \end{lstlisting}

Given tex (Indent: ampersands):
  \begin{tabular}{cc}
      \begin{tabular}{c}
          Cell 1
      \end{tabular} &
      \begin{tabular}{c}
          Cell 2
      \end{tabular}
  \end{tabular}

  \begin{equation}
      \begin{aligned}
          1 &
          & 2 \\
          3 &
          & 4 \\
      \end{aligned}
  \end{equation}

Do (Indent):
  gg=G

Expect tex (Verify):
  \begin{tabular}{cc}
    \begin{tabular}{c}
      Cell 1
    \end{tabular} &
    \begin{tabular}{c}
      Cell 2
    \end{tabular}
  \end{tabular}

  \begin{equation}
    \begin{aligned}
      1 &
        & 2 \\
      3 &
        & 4 \\
    \end{aligned}
  \end{equation}

Given:
Execute (let g:vimtex_indent_on_ampersands = 0):
  let g:vimtex_indent_on_ampersands = 0

Given tex (Indent: ampersands 2):
  \begin{equation}
      \begin{aligned}
          1 &
          & 2 \\
          3 &
          & 4 \\
      \end{aligned}
  \end{equation}


Do (Indent):
  gg=G

Expect tex (Verify):
  \begin{equation}
    \begin{aligned}
      1 &
      & 2 \\
      3 &
      & 4 \\
    \end{aligned}
  \end{equation}

Given tex (Indent: ignored environments):
  \documentclass{minimal}
  \usepackage{amsmath}
  \begin{document}

  \begin{proof}
    This statement is false.
  \end{proof}
  \end{document}

Execute (let g:vimtex_indent_ignored_envs = ...):
  let g:vimtex_indent_ignored_envs = ['document', 'proof']

Do (Indent):
  gg=G

Expect tex (Verify):
  \documentclass{minimal}
  \usepackage{amsmath}
  \begin{document}

  \begin{proof}
  This statement is false.
  \end{proof}
  \end{document}

Given:
Execute (unlet g:vimtex_indent_ignored_envs):
  unlet g:vimtex_indent_ignored_envs
  unlet g:vimtex_indent_on_ampersands