Split [.foo] into [.][foo] when parsing test specs

b77cec05c0 fixed this problem for tagging tests, so that a test
case tagged with `[.foo]` would be parsed as tagged with `[.][foo]`.
This does the same for the test spec parsing.

Fixes #1798

include/internal/catch_test_spec_parser.cpp

@@ -20,10 +20,10 @@ namespace Catch {
         m_substring.reserve(m_arg.size());
         m_patternName.reserve(m_arg.size());
         m_realPatternPos = 0;
-        
+
         for( m_pos = 0; m_pos < m_arg.size(); ++m_pos )
           //if visitChar fails
-           if( !visitChar( m_arg[m_pos] ) ){ 
+           if( !visitChar( m_arg[m_pos] ) ){
                m_testSpec.m_invalidArgs.push_back(arg);
                break;
            }
@@ -113,9 +113,9 @@ namespace Catch {
         switch( m_mode ) {
         case Name:
         case QuotedName:
-            return addPattern<TestSpec::NamePattern>();
+            return addNamePattern();
         case Tag:
-            return addPattern<TestSpec::TagPattern>();
+            return addTagPattern();
         case EscapedName:
             revertBackToLastMode();
             return;
@@ -156,12 +156,12 @@ namespace Catch {
     void TestSpecParser::saveLastMode() {
       lastMode = m_mode;
     }
-    
+
     void TestSpecParser::revertBackToLastMode() {
       m_mode = lastMode;
     }
-    
-    bool TestSpecParser::separate() {  
+
+    bool TestSpecParser::separate() {
       if( (m_mode==QuotedName) || (m_mode==Tag) ){
          //invalid argument, signal failure to previous scope.
          m_mode = None;
@@ -174,7 +174,63 @@ namespace Catch {
       addFilter();
       return true; //success
     }
-    
+
+    std::string TestSpecParser::preprocessPattern() {
+        std::string token = m_patternName;
+        for (std::size_t i = 0; i < m_escapeChars.size(); ++i)
+            token = token.substr(0, m_escapeChars[i] - i) + token.substr(m_escapeChars[i] - i + 1);
+        m_escapeChars.clear();
+        if (startsWith(token, "exclude:")) {
+            m_exclusion = true;
+            token = token.substr(8);
+        }
+
+        m_patternName.clear();
+
+        return token;
+    }
+
+    void TestSpecParser::addNamePattern() {
+        auto token = preprocessPattern();
+
+        if (!token.empty()) {
+            TestSpec::PatternPtr pattern = std::make_shared<TestSpec::NamePattern>(token, m_substring);
+            if (m_exclusion)
+                pattern = std::make_shared<TestSpec::ExcludedPattern>(pattern);
+            m_currentFilter.m_patterns.push_back(pattern);
+        }
+        m_substring.clear();
+        m_exclusion = false;
+        m_mode = None;
+    }
+
+    void TestSpecParser::addTagPattern() {
+        auto token = preprocessPattern();
+
+        if (!token.empty()) {
+            // If the tag pattern is the "hide and tag" shorthand (e.g. [.foo])
+            // we have to create a separate hide tag and shorten the real one
+            if (token.size() > 1 && token[0] == '.') {
+                token.erase(token.begin());
+                TestSpec::PatternPtr pattern = std::make_shared<TestSpec::TagPattern>(".", m_substring);
+                if (m_exclusion) {
+                    pattern = std::make_shared<TestSpec::ExcludedPattern>(pattern);
+                }
+                m_currentFilter.m_patterns.push_back(pattern);
+            }
+
+            TestSpec::PatternPtr pattern = std::make_shared<TestSpec::TagPattern>(token, m_substring);
+
+            if (m_exclusion) {
+                pattern = std::make_shared<TestSpec::ExcludedPattern>(pattern);
+            }
+            m_currentFilter.m_patterns.push_back(pattern);
+        }
+        m_substring.clear();
+        m_exclusion = false;
+        m_mode = None;
+    }
+
     TestSpec parseTestSpec( std::string const& arg ) {
         return TestSpecParser( ITagAliasRegistry::get() ).parse( arg ).testSpec();
     }

include/internal/catch_test_spec_parser.h

@@ -53,35 +53,20 @@ namespace Catch {
         void revertBackToLastMode();
         void addFilter();
         bool separate();
-        
-        template<typename T>
-        void addPattern() {
-            std::string token = m_patternName;
-            for( std::size_t i = 0; i < m_escapeChars.size(); ++i )
-                token = token.substr( 0, m_escapeChars[i] - i ) + token.substr( m_escapeChars[i] -i +1 );
-            m_escapeChars.clear();
-            if( startsWith( token, "exclude:" ) ) {
-                m_exclusion = true;
-                token = token.substr( 8 );
-            }
-            if( !token.empty() ) {
-                TestSpec::PatternPtr pattern = std::make_shared<T>( token, m_substring );
-                if( m_exclusion )
-                    pattern = std::make_shared<TestSpec::ExcludedPattern>( pattern );
-                m_currentFilter.m_patterns.push_back( pattern );
-            }
-            m_substring.clear();
-            m_patternName.clear();
-            m_exclusion = false;
-            m_mode = None;
-        }
-        
+
+        // Handles common preprocessing of the pattern for name/tag patterns
+        std::string preprocessPattern();
+        // Adds the current pattern as a test name
+        void addNamePattern();
+        // Adds the current pattern as a tag
+        void addTagPattern();
+
         inline void addCharToPattern(char c) {
             m_substring += c;
             m_patternName += c;
             m_realPatternPos++;
         }
-        
+
     };
     TestSpec parseTestSpec( std::string const& arg );
 

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

@@ -1027,6 +1027,12 @@ CmdLine.tests.cpp:<line number>: passed: spec.matches( fakeTestCase( "  aardvark
 CmdLine.tests.cpp:<line number>: passed: spec.matches( fakeTestCase( " aardvark " ) ) for: true
 CmdLine.tests.cpp:<line number>: passed: spec.matches( fakeTestCase( "aardvark " ) ) for: true
 CmdLine.tests.cpp:<line number>: passed: spec.matches( fakeTestCase( "aardvark" ) ) for: true
+CmdLine.tests.cpp:<line number>: passed: spec.matches(fakeTestCase("hidden and foo", "[.][foo]")) for: true
+CmdLine.tests.cpp:<line number>: passed: !(spec.matches(fakeTestCase("only foo", "[foo]"))) for: !false
+CmdLine.tests.cpp:<line number>: passed: !(spec.matches(fakeTestCase("hidden and foo", "[.][foo]"))) for: !false
+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
 Condition.tests.cpp:<line number>: passed: p == 0 for: 0 == 0
 Condition.tests.cpp:<line number>: passed: p == pNULL for: 0 == 0
 Condition.tests.cpp:<line number>: passed: p != 0 for: 0x<hex digits> != 0

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

@@ -1381,5 +1381,5 @@ due to unexpected exception with message:
 
 ===============================================================================
 test cases:  304 |  230 passed |  70 failed |  4 failed as expected
-assertions: 1653 | 1501 passed | 131 failed | 21 failed as expected
+assertions: 1659 | 1507 passed | 131 failed | 21 failed as expected
 

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

@@ -7361,6 +7361,50 @@ CmdLine.tests.cpp:<line number>: PASSED:
 with expansion:
   true
 
+-------------------------------------------------------------------------------
+Parse test names and tags
+  Shortened hide tags are split apart when parsing
+-------------------------------------------------------------------------------
+CmdLine.tests.cpp:<line number>
+...............................................................................
+
+CmdLine.tests.cpp:<line number>: PASSED:
+  CHECK( spec.matches(fakeTestCase("hidden and foo", "[.][foo]")) )
+with expansion:
+  true
+
+CmdLine.tests.cpp:<line number>: PASSED:
+  CHECK_FALSE( spec.matches(fakeTestCase("only foo", "[foo]")) )
+with expansion:
+  !false
+
+-------------------------------------------------------------------------------
+Parse test names and tags
+  Shortened hide tags also properly handle exclusion
+-------------------------------------------------------------------------------
+CmdLine.tests.cpp:<line number>
+...............................................................................
+
+CmdLine.tests.cpp:<line number>: PASSED:
+  CHECK_FALSE( spec.matches(fakeTestCase("hidden and foo", "[.][foo]")) )
+with expansion:
+  !false
+
+CmdLine.tests.cpp:<line number>: PASSED:
+  CHECK_FALSE( spec.matches(fakeTestCase("only foo", "[foo]")) )
+with expansion:
+  !false
+
+CmdLine.tests.cpp:<line number>: PASSED:
+  CHECK_FALSE( spec.matches(fakeTestCase("only hidden", "[.]")) )
+with expansion:
+  !false
+
+CmdLine.tests.cpp:<line number>: PASSED:
+  CHECK( spec.matches(fakeTestCase("neither foo nor hidden", "[bar]")) )
+with expansion:
+  true
+
 -------------------------------------------------------------------------------
 Pointers can be compared to null
 -------------------------------------------------------------------------------
@@ -13208,5 +13252,5 @@ Misc.tests.cpp:<line number>: PASSED:
 
 ===============================================================================
 test cases:  304 |  214 passed |  86 failed |  4 failed as expected
-assertions: 1670 | 1501 passed | 148 failed | 21 failed as expected
+assertions: 1676 | 1507 passed | 148 failed | 21 failed as expected
 

projects/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="132" tests="1671" hostname="tbd" time="{duration}" timestamp="{iso8601-timestamp}">
+  <testsuite name="<exe-name>" errors="17" failures="132" tests="1677" hostname="tbd" time="{duration}" timestamp="{iso8601-timestamp}">
     <properties>
       <property name="filters" value="~[!nonportable]~[!benchmark]~[approvals]"/>
       <property name="random-seed" value="1"/>
@@ -982,6 +982,8 @@ Message.tests.cpp:<line number>
     <testcase classname="<exe-name>.global" name="Parse test names and tags/quoted string followed by tag exclusion" time="{duration}"/>
     <testcase classname="<exe-name>.global" name="Parse test names and tags/Leading and trailing spaces in test spec" time="{duration}"/>
     <testcase classname="<exe-name>.global" name="Parse test names and tags/Leading and trailing spaces in test name" time="{duration}"/>
+    <testcase classname="<exe-name>.global" name="Parse test names and tags/Shortened hide tags are split apart when parsing" time="{duration}"/>
+    <testcase classname="<exe-name>.global" name="Parse test names and tags/Shortened hide tags also properly handle exclusion" time="{duration}"/>
     <testcase classname="<exe-name>.global" name="Pointers can be compared to null" time="{duration}"/>
     <testcase classname="<exe-name>.global" name="Precision of floating point stringification can be set/Floats" time="{duration}"/>
     <testcase classname="<exe-name>.global" name="Precision of floating point stringification can be set/Double" time="{duration}"/>

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

@@ -35,6 +35,8 @@
     <testCase name="Parse test names and tags/quoted string followed by tag exclusion" duration="{duration}"/>
     <testCase name="Parse test names and tags/Leading and trailing spaces in test spec" duration="{duration}"/>
     <testCase name="Parse test names and tags/Leading and trailing spaces in test name" duration="{duration}"/>
+    <testCase name="Parse test names and tags/Shortened hide tags are split apart when parsing" duration="{duration}"/>
+    <testCase name="Parse test names and tags/Shortened hide tags also properly handle exclusion" duration="{duration}"/>
     <testCase name="Process can be configured on command line/empty args don't cause a crash" duration="{duration}"/>
     <testCase name="Process can be configured on command line/default - no arguments" duration="{duration}"/>
     <testCase name="Process can be configured on command line/test lists/Specify one test case using" duration="{duration}"/>

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

@@ -8019,7 +8019,7 @@ Nor would this
       </Section>
       <OverallResult success="false"/>
     </TestCase>
-    <TestCase name="Parse test names and tags" filename="projects/<exe-name>/IntrospectiveTests/CmdLine.tests.cpp" >
+    <TestCase name="Parse test names and tags" tags="[command-line][test-spec]" filename="projects/<exe-name>/IntrospectiveTests/CmdLine.tests.cpp" >
       <Section name="Empty test spec should have no filters" filename="projects/<exe-name>/IntrospectiveTests/CmdLine.tests.cpp" >
         <Expression success="true" type="CHECK" filename="projects/<exe-name>/IntrospectiveTests/CmdLine.tests.cpp" >
           <Original>
@@ -9279,6 +9279,60 @@ Nor would this
         </Expression>
         <OverallResults successes="5" failures="0" expectedFailures="0"/>
       </Section>
+      <Section name="Shortened hide tags are split apart when parsing" filename="projects/<exe-name>/IntrospectiveTests/CmdLine.tests.cpp" >
+        <Expression success="true" type="CHECK" filename="projects/<exe-name>/IntrospectiveTests/CmdLine.tests.cpp" >
+          <Original>
+            spec.matches(fakeTestCase("hidden and foo", "[.][foo]"))
+          </Original>
+          <Expanded>
+            true
+          </Expanded>
+        </Expression>
+        <Expression success="true" type="CHECK_FALSE" filename="projects/<exe-name>/IntrospectiveTests/CmdLine.tests.cpp" >
+          <Original>
+            !(spec.matches(fakeTestCase("only foo", "[foo]")))
+          </Original>
+          <Expanded>
+            !false
+          </Expanded>
+        </Expression>
+        <OverallResults successes="2" failures="0" expectedFailures="0"/>
+      </Section>
+      <Section name="Shortened hide tags also properly handle exclusion" filename="projects/<exe-name>/IntrospectiveTests/CmdLine.tests.cpp" >
+        <Expression success="true" type="CHECK_FALSE" filename="projects/<exe-name>/IntrospectiveTests/CmdLine.tests.cpp" >
+          <Original>
+            !(spec.matches(fakeTestCase("hidden and foo", "[.][foo]")))
+          </Original>
+          <Expanded>
+            !false
+          </Expanded>
+        </Expression>
+        <Expression success="true" type="CHECK_FALSE" filename="projects/<exe-name>/IntrospectiveTests/CmdLine.tests.cpp" >
+          <Original>
+            !(spec.matches(fakeTestCase("only foo", "[foo]")))
+          </Original>
+          <Expanded>
+            !false
+          </Expanded>
+        </Expression>
+        <Expression success="true" type="CHECK_FALSE" filename="projects/<exe-name>/IntrospectiveTests/CmdLine.tests.cpp" >
+          <Original>
+            !(spec.matches(fakeTestCase("only hidden", "[.]")))
+          </Original>
+          <Expanded>
+            !false
+          </Expanded>
+        </Expression>
+        <Expression success="true" type="CHECK" filename="projects/<exe-name>/IntrospectiveTests/CmdLine.tests.cpp" >
+          <Original>
+            spec.matches(fakeTestCase("neither foo nor hidden", "[bar]"))
+          </Original>
+          <Expanded>
+            true
+          </Expanded>
+        </Expression>
+        <OverallResults successes="4" failures="0" expectedFailures="0"/>
+      </Section>
       <OverallResult success="true"/>
     </TestCase>
     <TestCase name="Pointers can be compared to null" filename="projects/<exe-name>/UsageTests/Condition.tests.cpp" >
@@ -15790,7 +15844,7 @@ loose text artifact
       </Section>
       <OverallResult success="true"/>
     </TestCase>
-    <OverallResults successes="1501" failures="149" expectedFailures="21"/>
+    <OverallResults successes="1507" failures="149" expectedFailures="21"/>
   </Group>
-  <OverallResults successes="1501" failures="148" expectedFailures="21"/>
+  <OverallResults successes="1507" failures="148" expectedFailures="21"/>
 </Catch>

projects/SelfTest/IntrospectiveTests/CmdLine.tests.cpp

@@ -17,7 +17,7 @@
 
 inline Catch::TestCase fakeTestCase(const char* name, const char* desc = "") { return Catch::makeTestCase(nullptr, "", { name, desc }, CATCH_INTERNAL_LINEINFO); }
 
-TEST_CASE( "Parse test names and tags" ) {
+TEST_CASE( "Parse test names and tags", "[command-line][test-spec]" ) {
 
     using Catch::parseTestSpec;
     using Catch::TestSpec;
@@ -269,7 +269,6 @@ TEST_CASE( "Parse test names and tags" ) {
         CHECK( spec.matches( fakeTestCase( " aardvark " ) ) );
         CHECK( spec.matches( fakeTestCase( "aardvark " ) ) );
         CHECK( spec.matches( fakeTestCase( "aardvark" ) ) );
-
     }
     SECTION( "Leading and trailing spaces in test name" ) {
         TestSpec spec = parseTestSpec( "aardvark" );
@@ -278,7 +277,18 @@ TEST_CASE( "Parse test names and tags" ) {
         CHECK( spec.matches( fakeTestCase( " aardvark " ) ) );
         CHECK( spec.matches( fakeTestCase( "aardvark " ) ) );
         CHECK( spec.matches( fakeTestCase( "aardvark" ) ) );
-
+    }
+    SECTION("Shortened hide tags are split apart when parsing") {
+        TestSpec spec = parseTestSpec("[.foo]");
+        CHECK(spec.matches(fakeTestCase("hidden and foo", "[.][foo]")));
+        CHECK_FALSE(spec.matches(fakeTestCase("only foo", "[foo]")));
+    }
+    SECTION("Shortened hide tags also properly handle exclusion") {
+        TestSpec spec = parseTestSpec("~[.foo]");
+        CHECK_FALSE(spec.matches(fakeTestCase("hidden and foo", "[.][foo]")));
+        CHECK_FALSE(spec.matches(fakeTestCase("only foo", "[foo]")));
+        CHECK_FALSE(spec.matches(fakeTestCase("only hidden", "[.]")));
+        CHECK(spec.matches(fakeTestCase("neither foo nor hidden", "[bar]")));
     }
 }
 
@@ -486,7 +496,7 @@ TEST_CASE( "Process can be configured on command line", "[config][command-line]"
 
             REQUIRE(config.benchmarkSamples == 200);
         }
-        
+
         SECTION("resamples") {
             CHECK(cli.parse({ "test", "--benchmark-resamples=20000" }));