Improve test suite for bibtex

.Rbuildignore

@@ -9,3 +9,6 @@ revdep
 ^_pkgdown\.yml$
 ^docs$
 ^pkgdown$
+^bibtex\.Rcheck$
+^bibtex.*\.tar\.gz$
+^bibtex.*\.tgz$

.github/workflows/R-CMD-check.yaml

@@ -23,6 +23,15 @@ jobs:
           - {os: ubuntu-latest,   r: 'devel', http-user-agent: 'release'}
           - {os: ubuntu-latest,   r: 'release'}
           - {os: ubuntu-latest,   r: 'oldrel/1'}
+          - {os: ubuntu-latest,   r: 'oldrel/2'}
+          # Use 3.6 to trigger usage of RTools35
+          - {os: windows-latest, r: '3.6'}
+          # Use older ubuntu to maximise backward compatibility
+          - {os: ubuntu-18.04,   r: 'devel', http-user-agent: 'release'}
+          - {os: ubuntu-18.04,   r: 'release'}
+          - {os: ubuntu-18.04,   r: 'oldrel-1'}
+          - {os: ubuntu-18.04,   r: 'oldrel-2'}
+
 
     env:
       GITHUB_PAT: ${{ secrets.GITHUB_TOKEN }}
@@ -41,7 +50,9 @@ jobs:
 
       - uses: r-lib/actions/setup-r-dependencies@v1
         with:
-          extra-packages: rcmdcheck
+          extra-packages: |
+            rcmdcheck
+            devtools
 
       - name: Check
         env:

.github/workflows/test-coverage.yaml

@@ -23,7 +23,9 @@ jobs:
 
       - uses: r-lib/actions/setup-r-dependencies@v1
         with:
-          extra-packages: covr
+          extra-packages: |
+            covr
+            devtools
 
       - name: Test coverage
         run: covr::codecov()

.gitignore

@@ -7,3 +7,6 @@ src/*.so
 src/*.dll
 bibtex.Rproj
 docs
+bibtex.Rcheck/
+bibtex*.tar.gz
+bibtex*.tgz

DESCRIPTION

@@ -47,7 +47,8 @@ Depends:
 Imports:
     utils
 Suggests:
-    testthat
+    testthat (>= 3.0.0)
 LazyLoad: yes
 Encoding: UTF-8
-RoxygenNote: 7.1.1
+RoxygenNote: 7.1.2
+Config/testthat/edition: 3

inst/bib/multiline_string.bib

@@ -0,0 +1,22 @@
+@String{inst-CS-U-MARYLAND      = "Department of Computer Science,
+                                   University of Maryland"}
+
+
+@TechReport{Golub:1976:RDLb,
+  author =       "G. H. Golub and Virginia Klema and G. W. {Stewart
+                 III}",
+  title =        "Rank Degeneracy and Least Squares Problems",
+  type =         "Report",
+  number =       "TR-751",
+  institution =  inst-CS-U-MARYLAND,
+  pages =        "????",
+  month =        "????",
+  year =         "1976",
+  bibdate =      "Thu May 29 16:12:45 2014",
+  bibsource =    "http://www.math.utah.edu/pub/bibnet/authors/g/golub-gene-h.bib;
+                 http://www.math.utah.edu/pub/bibnet/authors/s/stewart-gilbert-w.bib",
+  acknowledgement = ack-nhfb,
+  GWSnumber =   "N6",
+  xxnote =       "Check: is this the same as Golub:1976:RDLa? If so,
+                 which report number is correct??",
+}

inst/bib/unable_recover_42.bib

@@ -0,0 +1,10 @@
+@String{{BAZ = "Foo Bar Baz" }
+
+@misc{murdoch:2009, 
+	author = "Duncan Murdoch", 
+	title = "Parsing Rd files", 
+	year = 2009, 
+	institution =  BAZ,
+	url = "http://developer.r-project.org/parseRd.pdf"
+}
+

inst/bib/unbalanced_braces.bib

@@ -0,0 +1,15 @@
+@misc{murdoch:2009, 
+	author = "Duncan Murdoch", 
+	title = "Parsing Rd files", 
+	year = 2009, 
+	url = "http://developer.r-project.org/parseRd.pdf"
+}
+
+
+@misc{murdoch:2010, 
+	author = "Duncan Murdoch", 
+	title = {"Parsing {Rd} files unbalanced", 
+	year = 2010, 
+	url = "http://developer.r-project.org/parseRd.pdf"
+}
+