commit 95f6a1aee48d7aede4fa881527577eb289b9cfdd
author Lionel Villard <villard@us.ibm.com> Wed Apr 25 16:59:45 2018 -0400
committer Lionel Villard <villard@us.ibm.com> Wed Apr 25 16:59:45 2018 -0400
tree 2c516471c780d53d71aadccd53e241e46ab5c7d4
parent d31e04a2e4dd8894a779d9e1b1c8989e41b18704

Added composer.literal

setup.cfg

diff --git a/setup.cfg b/setup.cfg
index 29543d6..34eb9c3 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,7 +1,6 @@
 [bdist_wheel]
 universal = 1
 
-
 [flake8]
 max-line-length = 140
 exclude = */migrations/*
@@ -21,6 +20,8 @@
     --doctest-modules
     --doctest-glob=\*.rst
     --tb=short
+markers =
+    literal
 
 [isort]
 force_single_line = True

src/composer/__init__.py

diff --git a/src/composer/__init__.py b/src/composer/__init__.py
index a6822ff..753c2c1 100644
--- a/src/composer/__init__.py
+++ b/src/composer/__init__.py
@@ -5,4 +5,7 @@
 _composer = Compiler()
 
 def sequence(*arguments):
-    return _composer.sequence(*arguments)
\ No newline at end of file
+    return _composer.sequence(*arguments)
+
+def literal(value):
+    return _composer.literal(value)
\ No newline at end of file

src/composer/composer.py

diff --git a/src/composer/composer.py b/src/composer/composer.py
index fcfbfea..5392565 100644
--- a/src/composer/composer.py
+++ b/src/composer/composer.py
@@ -44,7 +44,6 @@
        self.message = message
        self.argument = arguments
 
-
 def serialize(obj):
     return obj.__dict__
 
@@ -56,6 +55,9 @@
         return json.dumps(self.__dict__, indent=2, default=serialize)
 
 class Compiler:
+    def literal(self, value):
+        return self._compose('literal', (value,))
+
     def empty(self):
         return self._compose('empty', ())
 
@@ -99,7 +101,8 @@
             if 'type' not in arg:
                 setattr(composition, arg['_'], self.task(argument))
             elif arg['type'] == 'value':
-                # if (typeof argument === 'function') throw new ComposerError('Invalid argument', argument)
+                if type(argument).__name__ == 'function':
+                    raise ComposerError('Invalid argument', argument)
                 setattr(composition, arg['_'], argument)
             else:
                 setattr(composition, arg['_'], argument)
@@ -146,12 +149,12 @@
         return delimiter+newName
 
 # class Composer(Compiler):
-#         def action(self, name, options):
-#             """ enhanced action combinator: mangle name, capture code """
+#   def action(self, name, options):
+#     """ enhanced action combinator: mangle name, capture code """
 
 #             name = parseActionName(name)
-            # let exec
+# let exec
 
-            # const composition = { type: 'action', name }
-            # if (exec) composition.action = { exec }
-            # return new Composition(composition)
+# const composition = { type: 'action', name }
+# if (exec) composition.action = { exec }
+# return new Composition(composition)

tests/test_composer.py

diff --git a/tests/test_composer.py b/tests/test_composer.py
index b827a7a..52d52a1 100644
--- a/tests/test_composer.py
+++ b/tests/test_composer.py
@@ -1,6 +1,5 @@
-
 import composer
-
+import pytest
 
 def test_parse_action_name():
     combos = [
@@ -34,3 +33,22 @@
 def test_main():
     composition = composer.sequence("first", "second")
     print(composition)
+
+@pytest.mark.literal
+class TestLiteral:
+
+    def test_boolean(self):
+        composition = composer.literal(True)
+        print(composition)
+
+    def test_number(self):
+        composition = composer.literal(42)
+        print(composition)
+
+    def test_invalid_arg(self):
+        try:
+            composer.literal(lambda x:x)
+            assert False
+        except composer.ComposerError as error:
+            assert error.message == 'Invalid argument'
+