scanner: test for errors with multi-line objects crossing node.

multi-line strings and comments musn't cross nodes.
Testing this increases coverage above 94%

Signed-off-by: NeilBrown <neil@brown.name>

diff --git a/csrc/scanner-tests.mdc b/csrc/scanner-tests.mdc
index 7858e1d51f9c43048dd35d2b2c5ef08e187f6656..6a81989880b9415dd866ddc6d4252fd02c6ee455 100644 (file)
--- a/csrc/scanner-tests.mdc
+++ b/csrc/scanner-tests.mdc
@@ -38,7 +38,7 @@ about each test.
                @mv *.gcov coverage; [ -f .gcov ] && mv .gcov coverage || true
                @awk '/NOTEST/ { next } /^ *[1-9]/ {ran+=1} /^ *###/ {skip+=1} \
                    END {printf "coverage: %6.2f%%\n", ran * 100 / (ran + skip); \
-                        if (ran < (ran + skip) *0.92) exit(1) }' \
+                        if (ran < (ran + skip) *0.94) exit(1) }' \
                        coverage/scanner.mdc.gcov
                @rm -f .tmp*
 
@@ -742,7 +742,7 @@ to one.
        done
 
 ###### test list
-       scanner_section_tests += section1
+       scanner_section_tests += section1 section_string section_comment
 
 ###### test: section1
 
@@ -778,6 +778,60 @@ to one.
        4:0 newline()
        4:0 eof()
 
+###### test: section_string
+       a = '''
+         A sting mustn't cross
+         ## string B
+       skip
+
+###### string B
+       to a new node
+       '''
+
+###### output: section_string
+       Tokenizing: test: section_string
+       1:8 ident(a)
+       1:10 mark(=)
+       1:12 ERROR('''\x0a\x09  A sting mus..)
+       7:8 in()
+       7:8 ident(to)
+       7:11 ident(a)
+       7:13 ident(new)
+       7:17 ident(node)
+       8:8 newline()
+       8:8 ERROR(''')
+       4:8 newline()
+       4:8 out()
+       4:8 newline()
+       4:8 ident(skip)
+       5:0 newline()
+       5:0 eof()
+
+###### test: section_comment
+       /* Mult-line comment must stay within
+       ## comment B
+       */
+
+###### comment B
+       a single node, they cannot cross nodes.
+
+###### output: section_comment
+       Tokenizing: test: section_comment
+       1:8 ERROR(/* Mult-line comme..)
+       6:8 ident(a)
+       6:10 ident(single)
+       6:17 ident(node)
+       6:21 mark(,)
+       6:23 ident(they)
+       6:28 ident(cannot)
+       6:35 ident(cross)
+       6:41 ident(nodes)
+       6:46 mark(.)
+       3:8 newline()
+       3:8 mark(*/)
+       4:0 newline()
+       4:0 eof()
+
 ## Ad-hoc test
 
 These tests test bugs that were found in practice, and so prevent them recuring.