Add more tests for various less common tag-related cases

docs/test-cases-and-sections.md

@@ -44,7 +44,15 @@ The tag expression, ```"[widget]"``` selects A, B & D. ```"[gadget]"``` selects
 
 For more detail on command line selection see [the command line docs](command-line.md#specifying-which-tests-to-run)
 
-Tag names are not case sensitive and can contain any ASCII characters. This means that tags `[tag with spaces]` and `[I said "good day"]` are both allowed tags and can be filtered on. Escapes are not supported however and `[\]]` is not a valid tag.
+Tag names are not case sensitive and can contain any ASCII characters.
+This means that tags `[tag with spaces]` and `[I said "good day"]`
+are both allowed tags and can be filtered on. However, escapes are not
+supported however and `[\]]` is not a valid tag.
+
+The same tag can be specified multiple times for a single test case,
+but only one of the instances of identical tags will be kept. Which one
+is kept is functionally random.
+
 
 ### Special Tags
 

tests/CMakeLists.txt

@@ -87,6 +87,7 @@ set(TEST_SOURCES
         ${SELF_TEST_DIR}/IntrospectiveTests/RandomNumberGeneration.tests.cpp
         ${SELF_TEST_DIR}/IntrospectiveTests/Reporters.tests.cpp
         ${SELF_TEST_DIR}/IntrospectiveTests/Tag.tests.cpp
+        ${SELF_TEST_DIR}/IntrospectiveTests/TestSpecParser.tests.cpp
         ${SELF_TEST_DIR}/IntrospectiveTests/TextFlow.tests.cpp
         ${SELF_TEST_DIR}/IntrospectiveTests/Sharding.tests.cpp
         ${SELF_TEST_DIR}/IntrospectiveTests/String.tests.cpp

tests/SelfTest/Baselines/automake.sw.approved.txt

@@ -128,6 +128,7 @@ Nor would this
 :test-result: FAIL Custom std-exceptions can be custom translated
 :test-result: PASS Default scale is invisible to comparison
 :test-result: PASS Directly creating an EnumInfo
+:test-result: PASS Empty tag is not allowed
 :test-result: FAIL EndsWith string matcher
 :test-result: PASS Enums can quickly have stringification enabled using REGISTER_ENUM
 :test-result: PASS Enums in namespaces can quickly have stringification enabled using REGISTER_ENUM
@@ -180,7 +181,9 @@ Nor would this
 :test-result: FAIL Output from all sections is reported
 :test-result: PASS Overloaded comma or address-of operators are not used
 :test-result: PASS Parse test names and tags
+:test-result: PASS Parsed tags are matched case insensitive
 :test-result: PASS Parsing sharding-related cli flags
+:test-result: PASS Parsing tags with non-alphabetical characters is pass-through
 :test-result: PASS Parsing warnings
 :test-result: PASS Pointers can be compared to null
 :test-result: PASS Precision of floating point stringification can be set
@@ -224,6 +227,7 @@ Message from section two
 :test-result: PASS Stringifying std::chrono::time_point<system_clock>
 :test-result: FAIL Tabs and newlines show in output
 :test-result: PASS Tag alias can be registered against tag patterns
+:test-result: PASS Tags with spaces and non-alphanumerical characters are accepted
 :test-result: PASS Template test case method with test types specified inside std::tuple - MyTypes - 0
 :test-result: PASS Template test case method with test types specified inside std::tuple - MyTypes - 1
 :test-result: PASS Template test case method with test types specified inside std::tuple - MyTypes - 2
@@ -242,6 +246,7 @@ Message from section two
 :test-result: PASS TemplateTestSig: vectors can be sized and resized - float,4
 :test-result: PASS TemplateTestSig: vectors can be sized and resized - int,5
 :test-result: PASS TemplateTestSig: vectors can be sized and resized - std::string,15
+:test-result: PASS Test case with identical tags keeps just one
 :test-result: PASS Test case with one argument
 :test-result: PASS Test enum bit values
 :test-result: PASS Test with special, characters "in name

tests/SelfTest/Baselines/compact.sw.approved.txt

@@ -491,6 +491,7 @@ ToString.tests.cpp:<line number>: passed: enumInfo->lookup(1) == "Value2" for: V
 ToString.tests.cpp:<line number>: passed: enumInfo->lookup(3) == "{** unexpected enum value **}" for: {** unexpected enum value **}
 ==
 "{** unexpected enum value **}"
+Tag.tests.cpp:<line number>: passed: Catch::TestCaseInfo( "", { "fake test name", "[]" }, dummySourceLineInfo )
 Matchers.tests.cpp:<line number>: failed: testStringForMatching(), EndsWith( "Substring" ) for: "this string contains 'abc' as a substring" ends with: "Substring"
 Matchers.tests.cpp:<line number>: failed: testStringForMatching(), EndsWith( "this", Catch::CaseSensitive::No ) for: "this string contains 'abc' as a substring" ends with: "this" (case insensitive)
 EnumToString.tests.cpp:<line number>: passed: stringify( EnumClass3::Value1 ) == "Value1" for: "Value1" == "Value1"
@@ -1203,6 +1204,9 @@ CmdLine.tests.cpp:<line number>: passed: !(spec.matches(*fakeTestCase("hidden an
 CmdLine.tests.cpp:<line number>: passed: !(spec.matches(*fakeTestCase("only foo", "[foo]"))) for: !false
 CmdLine.tests.cpp:<line number>: passed: !(spec.matches(*fakeTestCase("only hidden", "[.]"))) for: !false
 CmdLine.tests.cpp:<line number>: passed: spec.matches(*fakeTestCase("neither foo nor hidden", "[bar]")) for: true
+TestSpecParser.tests.cpp:<line number>: passed: spec.hasFilters() for: true
+TestSpecParser.tests.cpp:<line number>: passed: spec.getInvalidSpecs().empty() for: true
+TestSpecParser.tests.cpp:<line number>: passed: spec.matches( testCase ) for: true
 CmdLine.tests.cpp:<line number>: passed: cli.parse({ "test", "--shard-count=8" }) for: {?}
 CmdLine.tests.cpp:<line number>: passed: config.shardCount == 8 for: 8 == 8
 CmdLine.tests.cpp:<line number>: passed: !(result) for: !{?}
@@ -1215,6 +1219,12 @@ CmdLine.tests.cpp:<line number>: passed: !(result) for: !{?}
 CmdLine.tests.cpp:<line number>: passed: result.errorMessage(), ContainsSubstring("Shard index must be a non-negative number") for: "Shard index must be a non-negative number" contains: "Shard index must be a non-negative number"
 CmdLine.tests.cpp:<line number>: passed: cli.parse({ "test", "--shard-index=0" }) for: {?}
 CmdLine.tests.cpp:<line number>: passed: config.shardIndex == 0 for: 0 == 0
+TestSpecParser.tests.cpp:<line number>: passed: spec.hasFilters() for: true with 1 message: 'tagString := "[tag with spaces]"'
+TestSpecParser.tests.cpp:<line number>: passed: spec.getInvalidSpecs().empty() for: true with 1 message: 'tagString := "[tag with spaces]"'
+TestSpecParser.tests.cpp:<line number>: passed: spec.matches( testCase ) for: true with 1 message: 'tagString := "[tag with spaces]"'
+TestSpecParser.tests.cpp:<line number>: passed: spec.hasFilters() for: true with 1 message: 'tagString := "[I said "good day" sir!]"'
+TestSpecParser.tests.cpp:<line number>: passed: spec.getInvalidSpecs().empty() for: true with 1 message: 'tagString := "[I said "good day" sir!]"'
+TestSpecParser.tests.cpp:<line number>: passed: spec.matches( testCase ) for: true with 1 message: 'tagString := "[I said "good day" sir!]"'
 CmdLine.tests.cpp:<line number>: passed: cli.parse( { "test", "-w", "NoAssertions" } ) for: {?}
 CmdLine.tests.cpp:<line number>: passed: config.warnings == WarnAbout::NoAssertions for: 1 == 1
 CmdLine.tests.cpp:<line number>: passed: !(cli.parse( { "test", "-w", "NoTests" } )) for: !{?}
@@ -1627,6 +1637,8 @@ Tag.tests.cpp:<line number>: passed: registry.add( "[no ampersat]", "", Catch::S
 Tag.tests.cpp:<line number>: passed: registry.add( "[the @ is not at the start]", "", Catch::SourceLineInfo( "file", 3 ) )
 Tag.tests.cpp:<line number>: passed: registry.add( "@no square bracket at start]", "", Catch::SourceLineInfo( "file", 3 ) )
 Tag.tests.cpp:<line number>: passed: registry.add( "[@no square bracket at end", "", Catch::SourceLineInfo( "file", 3 ) )
+Tag.tests.cpp:<line number>: passed: testCase.tags.size() == 2 for: 2 == 2
+Tag.tests.cpp:<line number>: passed: testCase.tags, VectorContains( Tag( "tag with spaces" ) ) && VectorContains( Tag( "I said \"good day\" sir!"_catch_sr ) ) for: { {?}, {?} } ( Contains: {?} and Contains: {?} )
 Class.tests.cpp:<line number>: passed: Template_Fixture<TestType>::m_a == 1 for: 1 == 1
 Class.tests.cpp:<line number>: passed: Template_Fixture<TestType>::m_a == 1 for: 1 == 1
 Class.tests.cpp:<line number>: passed: Template_Fixture<TestType>::m_a == 1 for: 1.0 == 1
@@ -1773,6 +1785,8 @@ Misc.tests.cpp:<line number>: passed: v.size() == V for: 15 == 15
 Misc.tests.cpp:<line number>: passed: v.capacity() >= V for: 15 >= 15
 Misc.tests.cpp:<line number>: passed: v.size() == V for: 15 == 15
 Misc.tests.cpp:<line number>: passed: v.capacity() >= V for: 15 >= 15
+Tag.tests.cpp:<line number>: passed: testCase.tags.size() == 1 for: 1 == 1
+Tag.tests.cpp:<line number>: passed: testCase.tags[0] == Tag( "tag1" ) for: {?} == {?}
 VariadicMacros.tests.cpp:<line number>: passed: with 1 message: 'no assertions'
 Tricky.tests.cpp:<line number>: passed: 0x<hex digits> == bit30and31 for: 3221225472 (0x<hex digits>) == 3221225472
 CmdLine.tests.cpp:<line number>: passed:

tests/SelfTest/Baselines/console.std.approved.txt

@@ -1426,6 +1426,6 @@ due to unexpected exception with message:
   Why would you throw a std::string?
 
 ===============================================================================
-test cases:  379 |  302 passed |  70 failed |  7 failed as expected
-assertions: 2169 | 2013 passed | 129 failed | 27 failed as expected
+test cases:  384 |  307 passed |  70 failed |  7 failed as expected
+assertions: 2183 | 2027 passed | 129 failed | 27 failed as expected
 

tests/SelfTest/Baselines/console.sw.approved.txt

@@ -3893,6 +3893,15 @@ with expansion:
   ==
   "{** unexpected enum value **}"
 
+-------------------------------------------------------------------------------
+Empty tag is not allowed
+-------------------------------------------------------------------------------
+Tag.tests.cpp:<line number>
+...............................................................................
+
+Tag.tests.cpp:<line number>: PASSED:
+  REQUIRE_THROWS( Catch::TestCaseInfo( "", { "fake test name", "[]" }, dummySourceLineInfo ) )
+
 -------------------------------------------------------------------------------
 EndsWith string matcher
 -------------------------------------------------------------------------------
@@ -8782,6 +8791,27 @@ CmdLine.tests.cpp:<line number>: PASSED:
 with expansion:
   true
 
+-------------------------------------------------------------------------------
+Parsed tags are matched case insensitive
+-------------------------------------------------------------------------------
+TestSpecParser.tests.cpp:<line number>
+...............................................................................
+
+TestSpecParser.tests.cpp:<line number>: PASSED:
+  REQUIRE( spec.hasFilters() )
+with expansion:
+  true
+
+TestSpecParser.tests.cpp:<line number>: PASSED:
+  REQUIRE( spec.getInvalidSpecs().empty() )
+with expansion:
+  true
+
+TestSpecParser.tests.cpp:<line number>: PASSED:
+  REQUIRE( spec.matches( testCase ) )
+with expansion:
+  true
+
 -------------------------------------------------------------------------------
 Parsing sharding-related cli flags
   shard-count
@@ -8887,6 +8917,60 @@ CmdLine.tests.cpp:<line number>: PASSED:
 with expansion:
   0 == 0
 
+-------------------------------------------------------------------------------
+Parsing tags with non-alphabetical characters is pass-through
+-------------------------------------------------------------------------------
+TestSpecParser.tests.cpp:<line number>
+...............................................................................
+
+TestSpecParser.tests.cpp:<line number>: PASSED:
+  REQUIRE( spec.hasFilters() )
+with expansion:
+  true
+with message:
+  tagString := "[tag with spaces]"
+
+TestSpecParser.tests.cpp:<line number>: PASSED:
+  REQUIRE( spec.getInvalidSpecs().empty() )
+with expansion:
+  true
+with message:
+  tagString := "[tag with spaces]"
+
+TestSpecParser.tests.cpp:<line number>: PASSED:
+  REQUIRE( spec.matches( testCase ) )
+with expansion:
+  true
+with message:
+  tagString := "[tag with spaces]"
+
+-------------------------------------------------------------------------------
+Parsing tags with non-alphabetical characters is pass-through
+-------------------------------------------------------------------------------
+TestSpecParser.tests.cpp:<line number>
+...............................................................................
+
+TestSpecParser.tests.cpp:<line number>: PASSED:
+  REQUIRE( spec.hasFilters() )
+with expansion:
+  true
+with message:
+  tagString := "[I said "good day" sir!]"
+
+TestSpecParser.tests.cpp:<line number>: PASSED:
+  REQUIRE( spec.getInvalidSpecs().empty() )
+with expansion:
+  true
+with message:
+  tagString := "[I said "good day" sir!]"
+
+TestSpecParser.tests.cpp:<line number>: PASSED:
+  REQUIRE( spec.matches( testCase ) )
+with expansion:
+  true
+with message:
+  tagString := "[I said "good day" sir!]"
+
 -------------------------------------------------------------------------------
 Parsing warnings
   NoAssertions
@@ -11497,6 +11581,22 @@ Tag.tests.cpp:<line number>: PASSED:
 Tag.tests.cpp:<line number>: PASSED:
   CHECK_THROWS( registry.add( "[@no square bracket at end", "", Catch::SourceLineInfo( "file", 3 ) ) )
 
+-------------------------------------------------------------------------------
+Tags with spaces and non-alphanumerical characters are accepted
+-------------------------------------------------------------------------------
+Tag.tests.cpp:<line number>
+...............................................................................
+
+Tag.tests.cpp:<line number>: PASSED:
+  REQUIRE( testCase.tags.size() == 2 )
+with expansion:
+  2 == 2
+
+Tag.tests.cpp:<line number>: PASSED:
+  REQUIRE_THAT( testCase.tags, VectorContains( Tag( "tag with spaces" ) ) && VectorContains( Tag( "I said \"good day\" sir!"_catch_sr ) ) )
+with expansion:
+  { {?}, {?} } ( Contains: {?} and Contains: {?} )
+
 -------------------------------------------------------------------------------
 Template test case method with test types specified inside std::tuple - MyTypes
 - 0
@@ -12774,6 +12874,22 @@ Misc.tests.cpp:<line number>: PASSED:
 with expansion:
   15 >= 15
 
+-------------------------------------------------------------------------------
+Test case with identical tags keeps just one
+-------------------------------------------------------------------------------
+Tag.tests.cpp:<line number>
+...............................................................................
+
+Tag.tests.cpp:<line number>: PASSED:
+  REQUIRE( testCase.tags.size() == 1 )
+with expansion:
+  1 == 1
+
+Tag.tests.cpp:<line number>: PASSED:
+  REQUIRE( testCase.tags[0] == Tag( "tag1" ) )
+with expansion:
+  {?} == {?}
+
 -------------------------------------------------------------------------------
 Test case with one argument
 -------------------------------------------------------------------------------
@@ -17424,6 +17540,6 @@ Misc.tests.cpp:<line number>
 Misc.tests.cpp:<line number>: PASSED:
 
 ===============================================================================
-test cases:  379 |  286 passed |  86 failed |  7 failed as expected
-assertions: 2186 | 2013 passed | 146 failed | 27 failed as expected
+test cases:  384 |  291 passed |  86 failed |  7 failed as expected
+assertions: 2200 | 2027 passed | 146 failed | 27 failed as expected
 

tests/SelfTest/Baselines/junit.sw.approved.txt

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <testsuitesloose text artifact
 >
-  <testsuite name="<exe-name>" errors="17" failures="129" tests="2186" hostname="tbd" time="{duration}" timestamp="{iso8601-timestamp}">
+  <testsuite name="<exe-name>" errors="17" failures="129" tests="2200" hostname="tbd" time="{duration}" timestamp="{iso8601-timestamp}">
     <properties>
       <property name="random-seed" value="1"/>
       <property name="filters" value="~[!nonportable]~[!benchmark]~[approvals] *"/>
@@ -451,6 +451,7 @@ Exception.tests.cpp:<line number>
     </testcase>
     <testcase classname="<exe-name>.global" name="Default scale is invisible to comparison" time="{duration}" status="run"/>
     <testcase classname="<exe-name>.global" name="Directly creating an EnumInfo" time="{duration}" status="run"/>
+    <testcase classname="<exe-name>.global" name="Empty tag is not allowed" time="{duration}" status="run"/>
     <testcase classname="<exe-name>.global" name="EndsWith string matcher" time="{duration}" status="run">
       <failure message="testStringForMatching(), EndsWith( &quot;Substring&quot; )" type="CHECK_THAT">
 FAILED:
@@ -1068,12 +1069,14 @@ Message.tests.cpp:<line number>
     <testcase classname="<exe-name>.global" name="Parse test names and tags/Leading and trailing spaces in test name" time="{duration}" status="run"/>
     <testcase classname="<exe-name>.global" name="Parse test names and tags/Shortened hide tags are split apart when parsing" time="{duration}" status="run"/>
     <testcase classname="<exe-name>.global" name="Parse test names and tags/Shortened hide tags also properly handle exclusion" time="{duration}" status="run"/>
+    <testcase classname="<exe-name>.global" name="Parsed tags are matched case insensitive" time="{duration}" status="run"/>
     <testcase classname="<exe-name>.global" name="Parsing sharding-related cli flags/shard-count" time="{duration}" status="run"/>
     <testcase classname="<exe-name>.global" name="Parsing sharding-related cli flags/Negative shard count reports error" time="{duration}" status="run"/>
     <testcase classname="<exe-name>.global" name="Parsing sharding-related cli flags/Zero shard count reports error" time="{duration}" status="run"/>
     <testcase classname="<exe-name>.global" name="Parsing sharding-related cli flags/shard-index" time="{duration}" status="run"/>
     <testcase classname="<exe-name>.global" name="Parsing sharding-related cli flags/Negative shard index reports error" time="{duration}" status="run"/>
     <testcase classname="<exe-name>.global" name="Parsing sharding-related cli flags/Shard index 0 is accepted" time="{duration}" status="run"/>
+    <testcase classname="<exe-name>.global" name="Parsing tags with non-alphabetical characters is pass-through" time="{duration}" status="run"/>
     <testcase classname="<exe-name>.global" name="Parsing warnings/NoAssertions" time="{duration}" status="run"/>
     <testcase classname="<exe-name>.global" name="Parsing warnings/NoTests is no longer supported" time="{duration}" status="run"/>
     <testcase classname="<exe-name>.global" name="Parsing warnings/Combining multiple warnings" time="{duration}" status="run"/>
@@ -1273,6 +1276,7 @@ Misc.tests.cpp:<line number>
     </testcase>
     <testcase classname="<exe-name>.global" name="Tag alias can be registered against tag patterns/The same tag alias can only be registered once" time="{duration}" status="run"/>
     <testcase classname="<exe-name>.global" name="Tag alias can be registered against tag patterns/Tag aliases must be of the form [@name]" time="{duration}" status="run"/>
+    <testcase classname="<exe-name>.global" name="Tags with spaces and non-alphanumerical characters are accepted" time="{duration}" status="run"/>
     <testcase classname="<exe-name>.Template_Fixture" name="Template test case method with test types specified inside std::tuple - MyTypes - 0" time="{duration}" status="run"/>
     <testcase classname="<exe-name>.Template_Fixture" name="Template test case method with test types specified inside std::tuple - MyTypes - 1" time="{duration}" status="run"/>
     <testcase classname="<exe-name>.Template_Fixture" name="Template test case method with test types specified inside std::tuple - MyTypes - 2" time="{duration}" status="run"/>
@@ -1331,6 +1335,7 @@ Misc.tests.cpp:<line number>
     <testcase classname="<exe-name>.global" name="TemplateTestSig: vectors can be sized and resized - std::string,15/resizing smaller changes size but not capacity/We can use the 'swap trick' to reset the capacity" time="{duration}" status="run"/>
     <testcase classname="<exe-name>.global" name="TemplateTestSig: vectors can be sized and resized - std::string,15/reserving bigger changes capacity but not size" time="{duration}" status="run"/>
     <testcase classname="<exe-name>.global" name="TemplateTestSig: vectors can be sized and resized - std::string,15/reserving smaller does not change size or capacity" time="{duration}" status="run"/>
+    <testcase classname="<exe-name>.global" name="Test case with identical tags keeps just one" time="{duration}" status="run"/>
     <testcase classname="<exe-name>.global" name="Test case with one argument" time="{duration}" status="run"/>
     <testcase classname="<exe-name>.global" name="Test enum bit values" time="{duration}" status="run"/>
     <testcase classname="<exe-name>.global" name="Test with special, characters &quot;in name" time="{duration}" status="run"/>

tests/SelfTest/Baselines/sonarqube.sw.approved.txt

@@ -241,12 +241,19 @@
     <testCase name="startsWith" duration="{duration}"/>
   </file>
   <file path="tests/<exe-name>/IntrospectiveTests/Tag.tests.cpp">
+    <testCase name="Empty tag is not allowed" duration="{duration}"/>
     <testCase name="Tag alias can be registered against tag patterns/The same tag alias can only be registered once" duration="{duration}"/>
     <testCase name="Tag alias can be registered against tag patterns/Tag aliases must be of the form [@name]" duration="{duration}"/>
+    <testCase name="Tags with spaces and non-alphanumerical characters are accepted" duration="{duration}"/>
+    <testCase name="Test case with identical tags keeps just one" duration="{duration}"/>
     <testCase name="empty tags are not allowed" duration="{duration}"/>
     <testCase name="shortened hide tags are split apart" duration="{duration}"/>
     <testCase name="tags with dots in later positions are not parsed as hidden" duration="{duration}"/>
   </file>
+  <file path="tests/<exe-name>/IntrospectiveTests/TestSpecParser.tests.cpp">
+    <testCase name="Parsed tags are matched case insensitive" duration="{duration}"/>
+    <testCase name="Parsing tags with non-alphabetical characters is pass-through" duration="{duration}"/>
+  </file>
   <file path="tests/<exe-name>/IntrospectiveTests/ToString.tests.cpp">
     <testCase name="Directly creating an EnumInfo" duration="{duration}"/>
     <testCase name="Range type with sentinel" duration="{duration}"/>

tests/SelfTest/Baselines/tap.sw.approved.txt

@@ -976,6 +976,8 @@ ok {test-number} - enumInfo->lookup(0) == "Value1" for: Value1 == "Value1"
 ok {test-number} - enumInfo->lookup(1) == "Value2" for: Value2 == "Value2"
 # Directly creating an EnumInfo
 ok {test-number} - enumInfo->lookup(3) == "{** unexpected enum value **}" for: {** unexpected enum value **} == "{** unexpected enum value **}"
+# Empty tag is not allowed
+ok {test-number} - Catch::TestCaseInfo( "", { "fake test name", "[]" }, dummySourceLineInfo )
 # EndsWith string matcher
 not ok {test-number} - testStringForMatching(), EndsWith( "Substring" ) for: "this string contains 'abc' as a substring" ends with: "Substring"
 # EndsWith string matcher
@@ -2328,6 +2330,12 @@ ok {test-number} - !(spec.matches(*fakeTestCase("only foo", "[foo]"))) for: !fal
 ok {test-number} - !(spec.matches(*fakeTestCase("only hidden", "[.]"))) for: !false
 # Parse test names and tags
 ok {test-number} - spec.matches(*fakeTestCase("neither foo nor hidden", "[bar]")) for: true
+# Parsed tags are matched case insensitive
+ok {test-number} - spec.hasFilters() for: true
+# Parsed tags are matched case insensitive
+ok {test-number} - spec.getInvalidSpecs().empty() for: true
+# Parsed tags are matched case insensitive
+ok {test-number} - spec.matches( testCase ) for: true
 # Parsing sharding-related cli flags
 ok {test-number} - cli.parse({ "test", "--shard-count=8" }) for: {?}
 # Parsing sharding-related cli flags
@@ -2352,6 +2360,18 @@ ok {test-number} - result.errorMessage(), ContainsSubstring("Shard index must be
 ok {test-number} - cli.parse({ "test", "--shard-index=0" }) for: {?}
 # Parsing sharding-related cli flags
 ok {test-number} - config.shardIndex == 0 for: 0 == 0
+# Parsing tags with non-alphabetical characters is pass-through
+ok {test-number} - spec.hasFilters() for: true with 1 message: 'tagString := "[tag with spaces]"'
+# Parsing tags with non-alphabetical characters is pass-through
+ok {test-number} - spec.getInvalidSpecs().empty() for: true with 1 message: 'tagString := "[tag with spaces]"'
+# Parsing tags with non-alphabetical characters is pass-through
+ok {test-number} - spec.matches( testCase ) for: true with 1 message: 'tagString := "[tag with spaces]"'
+# Parsing tags with non-alphabetical characters is pass-through
+ok {test-number} - spec.hasFilters() for: true with 1 message: 'tagString := "[I said "good day" sir!]"'
+# Parsing tags with non-alphabetical characters is pass-through
+ok {test-number} - spec.getInvalidSpecs().empty() for: true with 1 message: 'tagString := "[I said "good day" sir!]"'
+# Parsing tags with non-alphabetical characters is pass-through
+ok {test-number} - spec.matches( testCase ) for: true with 1 message: 'tagString := "[I said "good day" sir!]"'
 # Parsing warnings
 ok {test-number} - cli.parse( { "test", "-w", "NoAssertions" } ) for: {?}
 # Parsing warnings
@@ -2899,6 +2919,10 @@ ok {test-number} - registry.add( "[the @ is not at the start]", "", Catch::Sourc
 ok {test-number} - registry.add( "@no square bracket at start]", "", Catch::SourceLineInfo( "file", 3 ) )
 # Tag alias can be registered against tag patterns
 ok {test-number} - registry.add( "[@no square bracket at end", "", Catch::SourceLineInfo( "file", 3 ) )
+# Tags with spaces and non-alphanumerical characters are accepted
+ok {test-number} - testCase.tags.size() == 2 for: 2 == 2
+# Tags with spaces and non-alphanumerical characters are accepted
+ok {test-number} - testCase.tags, VectorContains( Tag( "tag with spaces" ) ) && VectorContains( Tag( "I said \"good day\" sir!"_catch_sr ) ) for: { {?}, {?} } ( Contains: {?} and Contains: {?} )
 # Template test case method with test types specified inside std::tuple - MyTypes - 0
 ok {test-number} - Template_Fixture<TestType>::m_a == 1 for: 1 == 1
 # Template test case method with test types specified inside std::tuple - MyTypes - 1
@@ -3191,6 +3215,10 @@ ok {test-number} - v.capacity() >= V for: 15 >= 15
 ok {test-number} - v.size() == V for: 15 == 15
 # TemplateTestSig: vectors can be sized and resized - std::string,15
 ok {test-number} - v.capacity() >= V for: 15 >= 15
+# Test case with identical tags keeps just one
+ok {test-number} - testCase.tags.size() == 1 for: 1 == 1
+# Test case with identical tags keeps just one
+ok {test-number} - testCase.tags[0] == Tag( "tag1" ) for: {?} == {?}
 # Test case with one argument
 ok {test-number} - with 1 message: 'no assertions'
 # Test enum bit values
@@ -4374,5 +4402,5 @@ ok {test-number} - q3 == 23. for: 23.0 == 23.0
 ok {test-number} -
 # xmlentitycheck
 ok {test-number} -
-1..2186
+1..2200
 

tests/SelfTest/Baselines/teamcity.sw.approved.txt

@@ -294,6 +294,8 @@ Exception.tests.cpp:<line number>|nunexpected exception with message:|n  "custom
 ##teamcity[testFinished name='Default scale is invisible to comparison' duration="{duration}"]
 ##teamcity[testStarted name='Directly creating an EnumInfo']
 ##teamcity[testFinished name='Directly creating an EnumInfo' duration="{duration}"]
+##teamcity[testStarted name='Empty tag is not allowed']
+##teamcity[testFinished name='Empty tag is not allowed' duration="{duration}"]
 ##teamcity[testStarted name='EndsWith string matcher']
 Matchers.tests.cpp:<line number>|nexpression failed|n  CHECK_THAT( testStringForMatching(), EndsWith( "Substring" ) )|nwith expansion:|n  "this string contains |'abc|' as a substring" ends with: "Substring"|n']
 Matchers.tests.cpp:<line number>|nexpression failed|n  CHECK_THAT( testStringForMatching(), EndsWith( "this", Catch::CaseSensitive::No ) )|nwith expansion:|n  "this string contains |'abc|' as a substring" ends with: "this" (case insensitive)|n']
@@ -465,8 +467,12 @@ Message.tests.cpp:<line number>|nexplicit failure with message:|n  "Message from
 ##teamcity[testFinished name='Overloaded comma or address-of operators are not used' duration="{duration}"]
 ##teamcity[testStarted name='Parse test names and tags']
 ##teamcity[testFinished name='Parse test names and tags' duration="{duration}"]
+##teamcity[testStarted name='Parsed tags are matched case insensitive']
+##teamcity[testFinished name='Parsed tags are matched case insensitive' duration="{duration}"]
 ##teamcity[testStarted name='Parsing sharding-related cli flags']
 ##teamcity[testFinished name='Parsing sharding-related cli flags' duration="{duration}"]
+##teamcity[testStarted name='Parsing tags with non-alphabetical characters is pass-through']
+##teamcity[testFinished name='Parsing tags with non-alphabetical characters is pass-through' duration="{duration}"]
 ##teamcity[testStarted name='Parsing warnings']
 ##teamcity[testFinished name='Parsing warnings' duration="{duration}"]
 ##teamcity[testStarted name='Pointers can be compared to null']
@@ -553,6 +559,8 @@ Misc.tests.cpp:<line number>|nexpression failed|n  CHECK( s1 == s2 )|nwith expan
 ##teamcity[testFinished name='Tabs and newlines show in output' duration="{duration}"]
 ##teamcity[testStarted name='Tag alias can be registered against tag patterns']
 ##teamcity[testFinished name='Tag alias can be registered against tag patterns' duration="{duration}"]
+##teamcity[testStarted name='Tags with spaces and non-alphanumerical characters are accepted']
+##teamcity[testFinished name='Tags with spaces and non-alphanumerical characters are accepted' duration="{duration}"]
 ##teamcity[testStarted name='Template test case method with test types specified inside std::tuple - MyTypes - 0']
 ##teamcity[testFinished name='Template test case method with test types specified inside std::tuple - MyTypes - 0' duration="{duration}"]
 ##teamcity[testStarted name='Template test case method with test types specified inside std::tuple - MyTypes - 1']
@@ -589,6 +597,8 @@ Misc.tests.cpp:<line number>|nexpression failed|n  CHECK( s1 == s2 )|nwith expan
 ##teamcity[testFinished name='TemplateTestSig: vectors can be sized and resized - int,5' duration="{duration}"]
 ##teamcity[testStarted name='TemplateTestSig: vectors can be sized and resized - std::string,15']
 ##teamcity[testFinished name='TemplateTestSig: vectors can be sized and resized - std::string,15' duration="{duration}"]
+##teamcity[testStarted name='Test case with identical tags keeps just one']
+##teamcity[testFinished name='Test case with identical tags keeps just one' duration="{duration}"]
 ##teamcity[testStarted name='Test case with one argument']
 ##teamcity[testFinished name='Test case with one argument' duration="{duration}"]
 ##teamcity[testStarted name='Test enum bit values']

tests/SelfTest/Baselines/xml.sw.approved.txt

@@ -4306,6 +4306,17 @@ Nor would this
     </Expression>
     <OverallResult success="true"/>
   </TestCase>
+  <TestCase name="Empty tag is not allowed" filename="tests/<exe-name>/IntrospectiveTests/Tag.tests.cpp" >
+    <Expression success="true" type="REQUIRE_THROWS" filename="tests/<exe-name>/IntrospectiveTests/Tag.tests.cpp" >
+      <Original>
+        Catch::TestCaseInfo( "", { "fake test name", "[]" }, dummySourceLineInfo )
+      </Original>
+      <Expanded>
+        Catch::TestCaseInfo( "", { "fake test name", "[]" }, dummySourceLineInfo )
+      </Expanded>
+    </Expression>
+    <OverallResult success="true"/>
+  </TestCase>
   <TestCase name="EndsWith string matcher" tags="[.][failing][matchers]" filename="tests/<exe-name>/UsageTests/Matchers.tests.cpp" >
     <Expression success="false" type="CHECK_THAT" filename="tests/<exe-name>/UsageTests/Matchers.tests.cpp" >
       <Original>
@@ -10700,6 +10711,33 @@ Nor would this
     </Section>
     <OverallResult success="true"/>
   </TestCase>
+  <TestCase name="Parsed tags are matched case insensitive" tags="[test-spec][test-spec-parser]" filename="tests/<exe-name>/IntrospectiveTests/TestSpecParser.tests.cpp" >
+    <Expression success="true" type="REQUIRE" filename="tests/<exe-name>/IntrospectiveTests/TestSpecParser.tests.cpp" >
+      <Original>
+        spec.hasFilters()
+      </Original>
+      <Expanded>
+        true
+      </Expanded>
+    </Expression>
+    <Expression success="true" type="REQUIRE" filename="tests/<exe-name>/IntrospectiveTests/TestSpecParser.tests.cpp" >
+      <Original>
+        spec.getInvalidSpecs().empty()
+      </Original>
+      <Expanded>
+        true
+      </Expanded>
+    </Expression>
+    <Expression success="true" type="REQUIRE" filename="tests/<exe-name>/IntrospectiveTests/TestSpecParser.tests.cpp" >
+      <Original>
+        spec.matches( testCase )
+      </Original>
+      <Expanded>
+        true
+      </Expanded>
+    </Expression>
+    <OverallResult success="true"/>
+  </TestCase>
   <TestCase name="Parsing sharding-related cli flags" tags="[sharding]" filename="tests/<exe-name>/IntrospectiveTests/CmdLine.tests.cpp" >
     <Section name="shard-count" filename="tests/<exe-name>/IntrospectiveTests/CmdLine.tests.cpp" >
       <Expression success="true" type="CHECK" filename="tests/<exe-name>/IntrospectiveTests/CmdLine.tests.cpp" >
@@ -10817,6 +10855,75 @@ Nor would this
     </Section>
     <OverallResult success="true"/>
   </TestCase>
+  <TestCase name="Parsing tags with non-alphabetical characters is pass-through" tags="[test-spec][test-spec-parser]" filename="tests/<exe-name>/IntrospectiveTests/TestSpecParser.tests.cpp" >
+    <Info>
+      tagString := "[tag with spaces]"
+    </Info>
+    <Expression success="true" type="REQUIRE" filename="tests/<exe-name>/IntrospectiveTests/TestSpecParser.tests.cpp" >
+      <Original>
+        spec.hasFilters()
+      </Original>
+      <Expanded>
+        true
+      </Expanded>
+    </Expression>
+    <Info>
+      tagString := "[tag with spaces]"
+    </Info>
+    <Expression success="true" type="REQUIRE" filename="tests/<exe-name>/IntrospectiveTests/TestSpecParser.tests.cpp" >
+      <Original>
+        spec.getInvalidSpecs().empty()
+      </Original>
+      <Expanded>
+        true
+      </Expanded>
+    </Expression>
+    <Info>
+      tagString := "[tag with spaces]"
+    </Info>
+    <Expression success="true" type="REQUIRE" filename="tests/<exe-name>/IntrospectiveTests/TestSpecParser.tests.cpp" >
+      <Original>
+        spec.matches( testCase )
+      </Original>
+      <Expanded>
+        true
+      </Expanded>
+    </Expression>
+    <Info>
+      tagString := "[I said "good day" sir!]"
+    </Info>
+    <Expression success="true" type="REQUIRE" filename="tests/<exe-name>/IntrospectiveTests/TestSpecParser.tests.cpp" >
+      <Original>
+        spec.hasFilters()
+      </Original>
+      <Expanded>
+        true
+      </Expanded>
+    </Expression>
+    <Info>
+      tagString := "[I said "good day" sir!]"
+    </Info>
+    <Expression success="true" type="REQUIRE" filename="tests/<exe-name>/IntrospectiveTests/TestSpecParser.tests.cpp" >
+      <Original>
+        spec.getInvalidSpecs().empty()
+      </Original>
+      <Expanded>
+        true
+      </Expanded>
+    </Expression>
+    <Info>
+      tagString := "[I said "good day" sir!]"
+    </Info>
+    <Expression success="true" type="REQUIRE" filename="tests/<exe-name>/IntrospectiveTests/TestSpecParser.tests.cpp" >
+      <Original>
+        spec.matches( testCase )
+      </Original>
+      <Expanded>
+        true
+      </Expanded>
+    </Expression>
+    <OverallResult success="true"/>
+  </TestCase>
   <TestCase name="Parsing warnings" tags="[cli][warnings]" filename="tests/<exe-name>/IntrospectiveTests/CmdLine.tests.cpp" >
     <Section name="NoAssertions" filename="tests/<exe-name>/IntrospectiveTests/CmdLine.tests.cpp" >
       <Expression success="true" type="REQUIRE" filename="tests/<exe-name>/IntrospectiveTests/CmdLine.tests.cpp" >
@@ -13640,6 +13747,25 @@ Message from section two
     </Section>
     <OverallResult success="true"/>
   </TestCase>
+  <TestCase name="Tags with spaces and non-alphanumerical characters are accepted" tags="[tags]" filename="tests/<exe-name>/IntrospectiveTests/Tag.tests.cpp" >
+    <Expression success="true" type="REQUIRE" filename="tests/<exe-name>/IntrospectiveTests/Tag.tests.cpp" >
+      <Original>
+        testCase.tags.size() == 2
+      </Original>
+      <Expanded>
+        2 == 2
+      </Expanded>
+    </Expression>
+    <Expression success="true" type="REQUIRE_THAT" filename="tests/<exe-name>/IntrospectiveTests/Tag.tests.cpp" >
+      <Original>
+        testCase.tags, VectorContains( Tag( "tag with spaces" ) ) &amp;&amp; VectorContains( Tag( "I said \"good day\" sir!"_catch_sr ) )
+      </Original>
+      <Expanded>
+        { {?}, {?} } ( Contains: {?} and Contains: {?} )
+      </Expanded>
+    </Expression>
+    <OverallResult success="true"/>
+  </TestCase>
   <TestCase name="Template test case method with test types specified inside std::tuple - MyTypes - 0" tags="[class][list][template]" filename="tests/<exe-name>/UsageTests/Class.tests.cpp" >
     <Expression success="true" type="REQUIRE" filename="tests/<exe-name>/UsageTests/Class.tests.cpp" >
       <Original>
@@ -14982,6 +15108,25 @@ Message from section two
     </Section>
     <OverallResult success="true"/>
   </TestCase>
+  <TestCase name="Test case with identical tags keeps just one" tags="[tags]" filename="tests/<exe-name>/IntrospectiveTests/Tag.tests.cpp" >
+    <Expression success="true" type="REQUIRE" filename="tests/<exe-name>/IntrospectiveTests/Tag.tests.cpp" >
+      <Original>
+        testCase.tags.size() == 1
+      </Original>
+      <Expanded>
+        1 == 1
+      </Expanded>
+    </Expression>
+    <Expression success="true" type="REQUIRE" filename="tests/<exe-name>/IntrospectiveTests/Tag.tests.cpp" >
+      <Original>
+        testCase.tags[0] == Tag( "tag1" )
+      </Original>
+      <Expanded>
+        {?} == {?}
+      </Expanded>
+    </Expression>
+    <OverallResult success="true"/>
+  </TestCase>
   <TestCase name="Test case with one argument" filename="tests/<exe-name>/UsageTests/VariadicMacros.tests.cpp" >
     <OverallResult success="true"/>
   </TestCase>
@@ -20428,6 +20573,6 @@ loose text artifact
     </Section>
     <OverallResult success="true"/>
   </TestCase>
-  <OverallResults successes="2013" failures="146" expectedFailures="27"/>
-  <OverallResultsCases successes="286" failures="86" expectedFailures="7"/>
+  <OverallResults successes="2027" failures="146" expectedFailures="27"/>
+  <OverallResultsCases successes="291" failures="86" expectedFailures="7"/>
 </Catch2TestRun>

tests/SelfTest/IntrospectiveTests/Tag.tests.cpp

@@ -40,7 +40,7 @@ TEST_CASE( "Tag alias can be registered against tag patterns" ) {
 }
 
 // Dummy line info for creating dummy test cases below
-constexpr Catch::SourceLineInfo dummySourceLineInfo = CATCH_INTERNAL_LINEINFO;
+static constexpr Catch::SourceLineInfo dummySourceLineInfo = CATCH_INTERNAL_LINEINFO;
 
 TEST_CASE("shortened hide tags are split apart", "[tags]") {
     using Catch::StringRef;
@@ -66,3 +66,36 @@ TEST_CASE( "empty tags are not allowed", "[tags]" ) {
         Catch::TestCaseInfo("", { "test with an empty tag", "[]" }, dummySourceLineInfo)
     );
 }
+
+TEST_CASE( "Tags with spaces and non-alphanumerical characters are accepted",
+           "[tags]" ) {
+    using Catch::Tag;
+    using Catch::Matchers::VectorContains;
+
+    Catch::TestCaseInfo testCase(
+        "",
+        { "fake test name", "[tag with spaces][I said \"good day\" sir!]" },
+        dummySourceLineInfo );
+
+    REQUIRE( testCase.tags.size() == 2 );
+    REQUIRE_THAT( testCase.tags,
+                  VectorContains( Tag( "tag with spaces" ) ) &&
+                  VectorContains( Tag( "I said \"good day\" sir!"_catch_sr ) ) );
+}
+
+TEST_CASE( "Test case with identical tags keeps just one", "[tags]" ) {
+    using Catch::Tag;
+
+    Catch::TestCaseInfo testCase(
+        "",
+        { "fake test name", "[TaG1][tAg1][TAG1][tag1]" },
+        dummySourceLineInfo );
+
+    REQUIRE( testCase.tags.size() == 1 );
+    REQUIRE( testCase.tags[0] == Tag( "tag1" ) );
+}
+
+TEST_CASE( "Empty tag is not allowed" ) {
+    REQUIRE_THROWS( Catch::TestCaseInfo(
+        "", { "fake test name", "[]" }, dummySourceLineInfo ) );
+}

tests/SelfTest/IntrospectiveTests/TestSpecParser.tests.cpp

@@ -0,0 +1,55 @@
+
+//              Copyright Catch2 Authors
+// Distributed under the Boost Software License, Version 1.0.
+//   (See accompanying file LICENSE_1_0.txt or copy at
+//        https://www.boost.org/LICENSE_1_0.txt)
+
+// SPDX-License-Identifier: BSL-1.0
+
+#include <catch2/catch_test_macros.hpp>
+#include <catch2/generators/catch_generators.hpp>
+#include <catch2/catch_test_case_info.hpp>
+#include <catch2/internal/catch_tag_alias_registry.hpp>
+#include <catch2/internal/catch_test_spec_parser.hpp>
+
+namespace {
+    static constexpr Catch::SourceLineInfo dummySourceLineInfo = CATCH_INTERNAL_LINEINFO;
+
+    static Catch::TestSpec parseAndCreateSpec(std::string const& str) {
+        Catch::TagAliasRegistry registry;
+        Catch::TestSpecParser parser( registry );
+
+        parser.parse( str );
+        auto spec = parser.testSpec();
+        REQUIRE( spec.hasFilters() );
+        REQUIRE( spec.getInvalidSpecs().empty());
+
+        return spec;
+    }
+
+}
+
+TEST_CASE( "Parsing tags with non-alphabetical characters is pass-through",
+           "[test-spec][test-spec-parser]" ) {
+    auto const& tagString = GENERATE( as<std::string>{},
+                                      "[tag with spaces]",
+                                      "[I said \"good day\" sir!]" );
+    CAPTURE(tagString);
+
+    auto spec = parseAndCreateSpec( tagString );
+
+    Catch::TestCaseInfo testCase(
+        "", { "fake test name", tagString }, dummySourceLineInfo );
+
+    REQUIRE( spec.matches( testCase ) );
+}
+
+TEST_CASE("Parsed tags are matched case insensitive",
+    "[test-spec][test-spec-parser]") {
+    auto spec = parseAndCreateSpec( "[CASED tag]" );
+
+    Catch::TestCaseInfo testCase(
+        "", { "fake test name", "[cased TAG]" }, dummySourceLineInfo );
+
+    REQUIRE( spec.matches( testCase ) );
+}