1 file changed, 54 insertions, 0 deletions
diff --git a/tests/t0004-docs.sh b/tests/t0004-docs.sh
new file mode 100755
index 0000000..ef12493
--- /dev/null
+++ b/tests/t0004-docs.sh
@@ -0,0 +1,54 @@
+#!/bin/sh
+
+# Checks that the configuration documents stay consistent with each other.
+# The manual documents every key the reference config sets, the reference
+# config sets every key the manual documents, and both settings sections of
+# the manual keep their entries sorted so a reader can find a key by
+# scanning. An audit found the two files drifting apart, so this pins them
+# together.
+
+test_description='Check the configuration documents'
+. ./setup.sh
+
+ROOT="$TEST_OUTPUT_DIRECTORY/.."
+
+test_expect_success 'extract the key lists' '
+	sed -n "/^Global settings$/,/^Repository-specific cgitrc file$/p" \
+		"$ROOT/MANUAL.txt" |
+	sed -n "s/^\([a-z][a-zA-Z0-9.<>-]*\)::$/\1/p" |
+	sort >manual-keys &&
+	sed -n "s/^#\{0,1\}\([a-z][a-zA-Z0-9.<>-]*\)=.*/\1/p" \
+		"$ROOT/custom/cgitrc" |
+	sed -e "s/^mimetype\..*/mimetype.<ext>/" |
+	sort -u >example-keys &&
+	sed -n "s/^#\{0,1\}\(repo\.module-link\)\..*=.*/\1.<path>/p" \
+		"$ROOT/custom/cgitrc" >>example-keys &&
+	sort -o example-keys example-keys &&
+	test -s manual-keys && test -s example-keys
+'
+
+test_expect_success 'the reference config sets every documented key' '
+	comm -23 manual-keys example-keys >missing &&
+	test_must_be_empty missing
+'
+
+test_expect_success 'every key the reference config sets is documented' '
+	comm -13 manual-keys example-keys >undocumented &&
+	test_must_be_empty undocumented
+'
+
+test_expect_success 'the manual lists its global settings in order' '
+	sed -n "/^Global settings$/,/^Repository settings$/p" \
+		"$ROOT/MANUAL.txt" |
+	sed -n "s/^\([a-z][a-zA-Z0-9.<>-]*\)::$/\1/p" >global-order &&
+	LC_ALL=C sort -c global-order
+'
+
+test_expect_success 'the manual lists its repository settings in order' '
+	sed -n "/^Repository settings$/,/^Repository-specific cgitrc file$/p" \
+		"$ROOT/MANUAL.txt" |
+	sed -n "s/^\(repo\.[a-zA-Z0-9.<>-]*\)::$/\1/p" >repo-order &&
+	LC_ALL=C sort -c repo-order
+'
+
+test_done