[house] Add a Jinja test template (#844)

This changes the expecations for the output layout.
This brings the exercise in line with the problem spec and breaks all existing solutions.

Author: IsaacG

exercises/practice/house/.meta/example.sh

@@ -33,9 +33,9 @@ main() {
 
 verse() {
     local -i n=$1
-    printf "This is the %s\n" "${items[n]}"
+    printf "This is the %s" "${items[n]}"
     for ((; n>0; n--)); do
-        printf "that %s the %s\n" "${that[n]}" "${items[n-1]}"
+        printf " that %s the %s" "${that[n]}" "${items[n-1]}"
     done
 }
 

exercises/practice/house/.meta/template.j2

@@ -0,0 +1,22 @@
+{{ header }}
+{% for idx, case in cases %}
+@test "{{ case["description"] }}" {
+    {% if idx == 0 %}# {% endif %}[[ $BATS_RUN_SKIPPED == "true" ]] || skip
+    expected=$(cat <<END
+{{ case["expected"] | join("\n") }}
+END
+)
+    run bash {{ solution }} {{ case["input"]["startVerse"] }} {{ case["input"]["endVerse"] }}
+    assert_success
+    assert_output "$expected"
+}
+{% endfor %}
+
+{%- for start, end in [(0, 12), (1, -1), (14, 12), (1, 13)] %}
+@test "invalid verse {{ loop.index }}" {
+    [[ $BATS_RUN_SKIPPED == "true" ]] || skip
+    run bash {{ solution }} {{ start }} {{ end }}
+    assert_failure
+    assert_output --partial "invalid"
+}
+{% endfor %}