Add template generator

Author: dem4ron

bin/generator-utils/generate_tests

@@ -0,0 +1,38 @@
+#!/usr/bin/env bash
+
+# shellcheck source=/dev/null
+source ./bin/generator-utils/utils
+
+function digest_template() {
+  template=$(cat bin/generator-utils/test_template)
+  # shellcheck disable=SC2001
+  # turn every token into a jq command
+  echo "$template" | sed 's/${\([^}]*\)\}\$/$(echo $case | jq -r '\''.\1'\'')/g'
+}
+
+canonical_json=$(cat canonical_data.json)
+SLUG=$(echo "$canonical_json" | jq '.exercise')
+EXERCISE_DIR="exercises/practice/${SLUG}"
+EXERCISE_DIR="exercises/practice/${SLUG}"
+TEST_FILE="${EXERCISE_DIR}/tests/${SLUG}.rs"
+    cat <<EOT >"$TEST_FILE"
+use $(dash_to_underscore "$SLUG")::*;
+// Add tests here
+
+EOT
+rm "$TEST_FILE"
+cases=$(echo "$canonical_json" | jq '[ .. | objects | with_entries(select(.key | IN("uuid", "description", "input", "expected", "property"))) | select(. != {}) | select(has("uuid")) ]')
+
+# shellcheck disable=SC2034
+jq -c '.[]' <<<"$cases" | while read -r case; do
+
+  # Evaluate the bash parts and replace them with their return values
+  eval_template="$(digest_template | sed -e "s/\$(\(.*\))/\$\(\1\)/g")"
+  eval_template="$(eval "echo \"$eval_template\"")"
+
+  # Turn function name unto snake_case
+  formatted_template=$(echo "$eval_template" | sed -e ':loop' -e 's/\(fn[^(]*\)[ -]/\1_/g' -e 't loop' | sed 's/fn_/fn /')
+  # Push to file
+  echo "$formatted_template" >>tests.rs
+
+done

bin/generator-utils/templates.sh

@@ -24,6 +24,7 @@ EOT
     )
     # fetch canonical_data
     canonical_json=$(curl "${curlopts[@]}" "https://raw.githubusercontent.com/exercism/problem-specifications/main/exercises/${slug}/canonical-data.json")
+    $canonical_json >>canonical_data.json
 
     if [ "${canonical_json}" == "404: Not Found" ]; then
         canonical_json=$(jq --null-input '{cases: []}')
@@ -40,6 +41,7 @@ EOT
         #(see kindergarten-garden https://github.com/exercism/problem-specifications/blob/main/exercises/kindergarten-garden/canonical-data.json)
         # so let's flatten it
         cases=$(echo "$canonical_json" | jq '[ .. | objects | with_entries(select(.key | IN("uuid", "description", "input", "expected"))) | select(. != {}) | select(has("uuid")) ]')
+        fn_name=$(echo "$canonical_json" | jq -r 'first(.. | .property? // empty)')
 
         first_iteration=true
         # loop through each object
@@ -57,7 +59,7 @@ fn ${desc}() {
     let expected = ${expected};
 
     // TODO: Add assertion
-    assert_eq!(input, expected)
+    assert_eq!(${fn_name}(input), expected)
 }
 
 EOT

bin/generator-utils/test_template

@@ -0,0 +1,9 @@
+#[test]
+#[ignore]
+fn ${description}$() {
+
+    let expected = vec!${expected}$;
+
+    assert_eq!(${property}$(${input.startVerse}$, ${input.endVerse}$), expected)
+}
+