tests/: update __future__ imports

TN: Q223-029

testsuite/tests/create_project/test.py

@@ -3,6 +3,9 @@ Test that the "create-project.py" script creates a valid Langkit project by
 generating it and building it.
 """
 
+from __future__ import (absolute_import, division, print_function,
+                        unicode_literals)
+
 import os.path
 import subprocess
 import sys
@@ -23,4 +26,4 @@ manage_py = os.path.join('mylang', 'manage.py')
 python(create_project_py, 'Mylang')
 python(manage_py, '-vnone', 'make')
 
-print 'Done'
+print('Done')

testsuite/tests/grammar/invalid_list/test.out

@@ -1,5 +1,5 @@
-File "test.py", line 30, In definition of grammar rule main_rule
+File "test.py", line 33, In definition of grammar rule main_rule
     Error: List parsers only accept subparsers that yield AST nodes (TokenType provided here)
-File "test.py", line 39, In definition of grammar rule main_rule
+File "test.py", line 42, In definition of grammar rule main_rule
     Error: Invalid list type for List parser: ListNode. Not a list type
 Done

testsuite/tests/grammar/invalid_list/test.py

@@ -1,3 +1,6 @@
+from __future__ import (absolute_import, division, print_function,
+                        unicode_literals)
+
 import os.path
 
 from langkit.compiled_types import ASTNode, Field, root_grammar_class

testsuite/tests/grammar/invalid_main_rule/test.out

@@ -1,3 +1,3 @@
-File "test.py", line 21, In definition of grammar
+File "test.py", line 24, In definition of grammar
     Error: Invalid rule name specified for main rule: "main_rulezz". Did you mean "main_rule"?
 Done

testsuite/tests/grammar/invalid_main_rule/test.py

@@ -1,3 +1,6 @@
+from __future__ import (absolute_import, division, print_function,
+                        unicode_literals)
+
 from langkit.compiled_types import ASTNode, abstract, root_grammar_class
 from langkit.diagnostics import Diagnostics
 from langkit.parsers import Grammar, Row
@@ -27,4 +30,4 @@ def lang_def():
 
 
 emit_and_print_errors(lang_def)
-print 'Done'
+print('Done')

testsuite/tests/grammar/invalid_row/test.out

@@ -1,3 +1,3 @@
-File "test.py", line 30, In definition of grammar rule main_rule
+File "test.py", line 33, In definition of grammar rule main_rule
     Error: Grammar rules must yield an AST node
 Done

testsuite/tests/grammar/invalid_row/test.py

@@ -2,6 +2,9 @@
 Test that top-level Row parsers are properly reported as errors.
 """
 
+from __future__ import (absolute_import, division, print_function,
+                        unicode_literals)
+
 import os.path
 
 from langkit.compiled_types import ASTNode, Field, root_grammar_class

testsuite/tests/grammar/invalid_rule_dup/test.out

@@ -1,3 +1,3 @@
-File "test.py", line 28, In definition of rule 'sec_rule'
+File "test.py", line 31, In definition of rule 'sec_rule'
     Error: Rule 'sec_rule' is already present in the grammar
 Done

testsuite/tests/grammar/invalid_rule_dup/test.py

@@ -1,3 +1,6 @@
+from __future__ import (absolute_import, division, print_function,
+                        unicode_literals)
+
 from langkit.compiled_types import ASTNode, abstract, root_grammar_class
 from langkit.diagnostics import Diagnostics
 from langkit.parsers import Grammar, Row
@@ -29,4 +32,4 @@ def lang_def():
     )
 
 emit_and_print_errors(lang_def)
-print 'Done'
+print('Done')

testsuite/tests/grammar/invalid_rule_usage/test.out

@@ -1,3 +1,3 @@
-File "test.py", line 24, In definition of grammar rule main_rule
+File "test.py", line 27, In definition of grammar rule main_rule
     Error: Wrong rule name: 'sec_rules'. Did you mean 'sec_rule'?
 Done

testsuite/tests/grammar/invalid_rule_usage/test.py

@@ -1,3 +1,6 @@
+from __future__ import (absolute_import, division, print_function,
+                        unicode_literals)
+
 from langkit.compiled_types import ASTNode, abstract, root_grammar_class
 from langkit.diagnostics import Diagnostics
 from langkit.parsers import Grammar, Row
@@ -27,4 +30,4 @@ def lang_def():
 
 
 emit_and_print_errors(lang_def)
-print 'Done'
+print('Done')

testsuite/tests/grammar/newline/main.py

@@ -1,3 +1,6 @@
+from __future__ import (absolute_import, division, print_function,
+                        unicode_literals)
+
 import libfoolang
 
 ctx = libfoolang.AnalysisContext()
@@ -6,9 +9,9 @@ ctx = libfoolang.AnalysisContext()
 def process(text):
     u = ctx.get_from_buffer('main.txt', text)
     if u.diagnostics:
-        print "Found errors:"
+        print("Found errors:")
         for d in u.diagnostics:
-            print "", d
+            print("", d)
     else:
         u.root.dump()
 

testsuite/tests/grammar/newline/test.py

@@ -2,6 +2,9 @@
 Test that Bind works when binding from env elements.
 """
 
+from __future__ import (absolute_import, division, print_function,
+                        unicode_literals)
+
 import os.path
 
 from langkit.compiled_types import (
@@ -94,4 +97,4 @@ foo_grammar.add_rules(
     main_rule=Or(A.comp, A.ind, A.nl)
 )
 build_and_run(foo_grammar, 'main.py', lexer=foo_lexer)
-print 'Done'
+print('Done')

testsuite/tests/grammar/recursive_list/test.py

@@ -1,3 +1,6 @@
+from __future__ import (absolute_import, division, print_function,
+                        unicode_literals)
+
 from langkit.compiled_types import (
     ASTNode, Field, root_grammar_class
 )
@@ -35,4 +38,4 @@ def lang_def():
 
 emit_and_print_errors(lang_def)
 
-print 'Done'
+print('Done')

testsuite/tests/grammar/trailing_garbage/main.py

@@ -1,3 +1,6 @@
+from __future__ import (absolute_import, division, print_function,
+                        unicode_literals)
+
 import libfoolang
 
 

testsuite/tests/grammar/trailing_garbage/test.py

@@ -3,6 +3,9 @@ Test that garbage tokens left after the main parsing rule completes does not
 crash. It used to!
 """
 
+from __future__ import (absolute_import, division, print_function,
+                        unicode_literals)
+
 import os.path
 
 from langkit.compiled_types import ASTNode, Field, root_grammar_class
@@ -30,4 +33,4 @@ foo_grammar.add_rules(
     main_rule=Row(Tok(Token.Number, keep=True)) ^ Literal,
 )
 build_and_run(foo_grammar, 'main.py')
-print 'Done'
+print('Done')

testsuite/tests/grammar/unreferenced_node/test.out

@@ -1,3 +1,3 @@
-File "test.py", line 21, in UnreferencedNode
+File "test.py", line 24, in UnreferencedNode
     Error: Unresolved ASTNode subclass. Use it in the grammar or provide a type annotation for all its fields
 Done

testsuite/tests/grammar/unreferenced_node/test.py

@@ -1,3 +1,6 @@
+from __future__ import (absolute_import, division, print_function,
+                        unicode_literals)
+
 from langkit.compiled_types import ASTNode, Field, abstract, root_grammar_class
 from langkit.diagnostics import Diagnostics
 from langkit.parsers import Grammar, Row
@@ -29,4 +32,4 @@ def lang_def():
 
 
 emit_and_print_errors(lang_def)
-print 'Done'
+print('Done')

testsuite/tests/lexical_envs/env_hook_unbound/test.out

@@ -1,3 +1,3 @@
-File "test.py", line 20, in BarNode
+File "test.py", line 23, in BarNode
     Error: Cannot invoke the environment hook if CompileContext.bind_env_hook has not been called
 Done

testsuite/tests/lexical_envs/env_hook_unbound/test.py

@@ -1,3 +1,6 @@
+from __future__ import (absolute_import, division, print_function,
+                        unicode_literals)
+
 import os.path
 
 from langkit.compiled_types import ASTNode, root_grammar_class
@@ -30,4 +33,4 @@ def lang_def():
 
 
 emit_and_print_errors(lang_def)
-print 'Done'
+print('Done')