tests: add new test in fixtures/sourcing.sh

I added this to the bottom of the file to minimize snapshot diffs. they're large enough as it is.

server/src/__tests__/analyzer.test.ts

@@ -123,6 +123,28 @@ describe('analyze', () => {
           "severity": 3,
           "source": "bash-language-server",
         },
+        {
+          "message": "Source command could not be analyzed: failed to resolve path.
+
+      Consider adding a ShellCheck directive above this line to fix or ignore this:
+      # shellcheck source=/my-file.sh # specify the file to source
+      # shellcheck source-path=my_script_folder # specify the folder to search in
+      # shellcheck source=/dev/null # to ignore the error
+
+      Disable this message by changing the configuration option "enableSourceErrorDiagnostics"",
+          "range": {
+            "end": {
+              "character": 49,
+              "line": 26,
+            },
+            "start": {
+              "character": 0,
+              "line": 26,
+            },
+          },
+          "severity": 3,
+          "source": "bash-language-server",
+        },
       ]
     `)
 
@@ -847,6 +869,7 @@ describe('initiateBackgroundAnalysis', () => {
       [expect.stringContaining('parse-problems.sh: syntax error')],
       [expect.stringContaining('sourcing.sh line 16: failed to resolve path')],
       [expect.stringContaining('sourcing.sh line 21: non-constant source not supported')],
+      [expect.stringContaining('sourcing.sh line 26: failed to resolve path')],
     ])
 
     // Intro, stats on glob, one file skipped due to shebang, and outro

testing/fixtures/sourcing.sh

@@ -23,3 +23,5 @@ loadlib () {
 }
 
 loadlib "issue206"
+
+source $SCRIPT_DIR/tag-release.inc with arguments