[pythagorean-triplet] Add a Jinja test template (#856)

[no important files changed]

Author: IsaacG

bin/validate_one_exercise

@@ -28,13 +28,12 @@ solution=$(jq -r '.files.example[0]' "$config")
 # Ensure each exercise has the expected number of commented-out skip lines
 case ${exercise} in
     hello-world)         expected=0 ;;
-    pythagorean-triplet) expected=2 ;;
     *)                   expected=1 ;;
 esac
 # a PCRE: the `\Q...\E` defines a literal segment
 skip_re='^\s*#+\s*\Q[[ $BATS_RUN_SKIPPED == "true" ]] || skip\E$'
 num_skip_comments=$(grep -cP "${skip_re}" "${tests}") || true
-(( num_skip_comments == expected )) || die "There should be exactly $expected commented skip directive in ${tests}"
+(( num_skip_comments == expected )) || die "There should be exactly $expected commented skip directive(s) in ${tests}"
 
 echo "Processing $exercise"
 

exercises/practice/pythagorean-triplet/.meta/template.j2

@@ -0,0 +1,21 @@
+{{ header }}
+{% for idx, case in cases %}
+@test "{{ case["description"] }}" {
+    {% if idx == 0 %}# {% endif %}[[ $BATS_RUN_SKIPPED == "true" ]] || skip
+{%- if case["input"]["n"] > 10000 %}
+
+    # This test is very time-consuming for a brute force solution.
+    # Remove the skip and run only for extra credit (or punishment).
+    [[ $RUN_HARD_TEST == "true" ]] || skip
+
+{%- endif %}
+    run bash {{ solution }} {{ case["input"]["n"] }}
+    assert_success
+    actual=$( sort -t, -n -k1,1 <<< "$output" )
+    expected=$(cat <<'END_EXPECTED'
+{{ case["expected"] | map("join", ",") | join("\n") }}
+END_EXPECTED
+)
+    assert_equal "$actual" "$expected"
+}
+{% endfor %}

exercises/practice/pythagorean-triplet/pythagorean_triplet.bats

@@ -1,17 +1,18 @@
 #!/usr/bin/env bats
 load bats-extra
 
-# local version: 1.0.0.0
-
-# Output your triplets, comma-separated, one per line.
-
+# generated on 2026-06-29T06:52:43+00:00
+# local version: 2.0.0.0
 
 @test "triplets whose sum is 12" {
-    #[[ $BATS_RUN_SKIPPED == "true" ]] || skip
+    # [[ $BATS_RUN_SKIPPED == "true" ]] || skip
     run bash pythagorean_triplet.sh 12
     assert_success
     actual=$( sort -t, -n -k1,1 <<< "$output" )
-    expected="3,4,5"
+    expected=$(cat <<'END_EXPECTED'
+3,4,5
+END_EXPECTED
+)
     assert_equal "$actual" "$expected"
 }
 
@@ -20,7 +21,10 @@ load bats-extra
     run bash pythagorean_triplet.sh 108
     assert_success
     actual=$( sort -t, -n -k1,1 <<< "$output" )
-    expected="27,36,45"
+    expected=$(cat <<'END_EXPECTED'
+27,36,45
+END_EXPECTED
+)
     assert_equal "$actual" "$expected"
 }
 
@@ -29,26 +33,35 @@ load bats-extra
     run bash pythagorean_triplet.sh 1000
     assert_success
     actual=$( sort -t, -n -k1,1 <<< "$output" )
-    expected="200,375,425"
+    expected=$(cat <<'END_EXPECTED'
+200,375,425
+END_EXPECTED
+)
     assert_equal "$actual" "$expected"
 }
 
 @test "no matching triplets for 1001" {
     [[ $BATS_RUN_SKIPPED == "true" ]] || skip
     run bash pythagorean_triplet.sh 1001
     assert_success
-    refute_output
-}
+    actual=$( sort -t, -n -k1,1 <<< "$output" )
+    expected=$(cat <<'END_EXPECTED'
 
-# Note: using ANSI-C Quoting here
-# see https://www.gnu.org/software/bash/manual/bash.html#ANSI_002dC-Quoting
+END_EXPECTED
+)
+    assert_equal "$actual" "$expected"
+}
 
 @test "returns all matching triplets" {
     [[ $BATS_RUN_SKIPPED == "true" ]] || skip
     run bash pythagorean_triplet.sh 90
     assert_success
     actual=$( sort -t, -n -k1,1 <<< "$output" )
-    expected=$'9,40,41\n15,36,39'
+    expected=$(cat <<'END_EXPECTED'
+9,40,41
+15,36,39
+END_EXPECTED
+)
     assert_equal "$actual" "$expected"
 }
 
@@ -57,29 +70,36 @@ load bats-extra
     run bash pythagorean_triplet.sh 840
     assert_success
     actual=$( sort -t, -n -k1,1 <<< "$output" )
-    expected="40,399,401
+    expected=$(cat <<'END_EXPECTED'
+40,399,401
 56,390,394
 105,360,375
 120,350,370
 140,336,364
 168,315,357
 210,280,350
-240,252,348"
+240,252,348
+END_EXPECTED
+)
     assert_equal "$actual" "$expected"
 }
 
-# This test is very time-consuming for a brute force solution.
-# Uncomment and run only for extra credit (or punishment).
+@test "triplets for large number" {
+    [[ $BATS_RUN_SKIPPED == "true" ]] || skip
 
-#@test "triplets for large number" {
-#    [[ $BATS_RUN_SKIPPED == "true" ]] || skip
-#    run bash pythagorean_triplet.sh 30000
-#    assert_success
-#    actual=$( sort -t, -n -k1,1 <<< "$output" )
-#    expected="1200,14375,14425
-#1875,14000,14125
-#5000,12000,13000
-#6000,11250,12750
-#7500,10000,12500"
-#    assert_equal "$actual" "$expected"
-#}
+    # This test is very time-consuming for a brute force solution.
+    # Remove the skip and run only for extra credit (or punishment).
+    [[ $RUN_HARD_TEST == "true" ]] || skip
+    run bash pythagorean_triplet.sh 30000
+    assert_success
+    actual=$( sort -t, -n -k1,1 <<< "$output" )
+    expected=$(cat <<'END_EXPECTED'
+1200,14375,14425
+1875,14000,14125
+5000,12000,13000
+6000,11250,12750
+7500,10000,12500
+END_EXPECTED
+)
+    assert_equal "$actual" "$expected"
+}