coverage: Test for strings in case statements

Add test to check that strings in case statements are not
executed in most cases.

1 files changed, 16 insertions, 0 deletions

diff --git a/installed-tests/js/testCoverage.js b/installed-tests/js/testCoverage.js
index 522e1028..0b1aab8f 100644
--- a/installed-tests/js/testCoverage.js
+++ b/installed-tests/js/testCoverage.js
@@ -173,6 +173,22 @@ function testExpressionLinesFoundForCaseStatementsCharacters() {
                       JSUnit.assertEquals);
 }
 
+function testExpressionLinesFoundForCaseStatementsCharacters() {
+    let foundLinesInsideCaseStatements =
+        parseScriptForExpressionLines("var a = 'a';\n" +
+                                      "switch (a) {\n" +
+                                      "case 'a':\n" +
+                                      "    a++;\n" +
+                                      "    break;\n" +
+                                      "case 'b':\n" +
+                                      "    a++;\n" +
+                                      "    break;\n" +
+                                      "}\n");
+    assertArrayEquals(foundLinesInsideCaseStatements,
+                      [1, 2, 4, 5, 7, 8],
+                      JSUnit.assertEquals);
+}
+
 function testExpressionLinesFoundForLoop() {
     let foundLinesInsideLoop =
         parseScriptForExpressionLines("for (let i = 0; i < 1; i++) {\n" +