Only create build.yaml if actually building

2 files changed, 14 insertions, 1 deletions

diff --git a/doc/040-simple.yarn b/doc/040-simple.yarn
index 2414db6..8c3da6d 100644
--- a/doc/040-simple.yarn
+++ b/doc/040-simple.yarn
@@ -59,12 +59,13 @@ build command.
 
     WHEN user runs ick KITTEN.ick
     THEN ick build log for FOO in KITTEN.state contains "BUILDING FOO"
+    AND there is 1 build log for FOO in KITTEN.state
 
 If we now run Ick again, it shouldn't do anything, since nothing in
 the git repository has changed.
 
     WHEN user runs ick KITTEN.ick
-    THEN ick build log for FOO in KITTEN.state doesn't contain "BUILDING FOO"
+    THEN there is 1 build log for FOO in KITTEN.state
 
 There we go. That's all you should need to know to run builds and
 build-time tests for a simple project. This doesn't produce Debian
diff --git a/doc/900-implements.yarn b/doc/900-implements.yarn
index 68de27f..a275848 100644
--- a/doc/900-implements.yarn
+++ b/doc/900-implements.yarn
@@ -83,6 +83,18 @@ Inspect the captured output of the latest ick file.
     cat "$build_log"
     ! grep "$PATTERN" "$build_log"
 
+    IMPLEMENTS THEN there is (\d+) build log(s?) for (.+) in (.+)
+    export COUNT="$MATCH_1"
+    export PROJECT="$MATCH_3"
+    export STATE="$MATCH_4"
+    builds="$DATADIR/$STATE/$PROJECT/builds"
+    export NUM_BUILDS="$(ls "$builds" | wc -l)"
+    if [ "$NUM_BUILDS" != "$COUNT" ]
+    then
+        echo "Expected $COUNT builds, found $NUM_BUILDS" 1>&2
+        exit 1
+    fi
+
 ## Creating a git repository
 
 We need a git repository with some source code. It should have a