[colinleach]

Another 8 templates, plus some template macros.

I finally thought to ask for the comments to be written to a Markdown file with proper formatting. Better late than never?

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Adds Jinja2 test templates for word-count, nucleotide-count, etl, resistor-color-trio, kindergarten-garden, food-chain, proverb and yacht

Each runtests.jl is regenerated from canonical data, and every exercise passes against its example solution. In line with the canonical-only decision, the hand-written tests that weren't in the canonical data have been removed.

Things to look at:

• Shared macros (config/generator_macros.j2):
  • julia_string now also escapes newlines and tabs as \n and \t. word-count and kindergarten-garden need this.
  • New julia_dict(d, char_keys=false) macro. It writes a Dict(...) literal, quoting string keys, or writing them as Char literals ('A') when char_keys=true. Values reuse julia_string and julia_vector.
  • Every previously templated exercise still passes --check, so their generated files don't change.
• Char keys: nucleotide-count and etl use Char keys and letters where the canonical data has strings, so their templates use char_keys=true. etl also turns the canonical string score keys into integers: transform(Dict(1 => ['A'])) == Dict('a' => 1).
• resistor-color-trio: the canonical {value, unit} becomes the string the Julia label returns, e.g. "2 kiloohms".
• proverb: the Julia recite returns a single string, so the canonical list of lines is joined with \n.
• kindergarten-garden: its canonical groups are nested two levels deep ("partial garden" contains "multiple students for the same garden with three students"), so the template uses a recursive macro.
• nucleotide-count: the canonical error case keeps the existing DomainError.
• Removed non-canonical tests:
  • resistor-color-trio: five cases, including every decimal value such as "3.3 kiloohms". The canonical data only has whole numbers, so decimal formatting is no longer tested. Worth a look, because the example solution handles decimals.
  • word-count: the "no words" test, wordcount(" .\n,\t!^&*()~@#\$%{}[]:;'/<>") == Dict(), and the "Should've could've would've" check.
• Unchanged: for food-chain, proverb, yacht, etl and nucleotide-count, the assertions are the same as before. Only the layout and testset names changed.

[github-actions]

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