Raise an error if a builder is called multiple times for a given target, unless the builder is marked as multicall safe. (Anthony Roach)

1 files changed, 236 insertions, 0 deletions

diff --git a/test/multi.py b/test/multi.py
new file mode 100644
index 0000000..d955720
--- /dev/null
+++ b/test/multi.py
@@ -0,0 +1,236 @@
+#!/usr/bin/env python
+#
+# Copyright (c) 2001, 2002 Steven Knight
+#
+# Permission is hereby granted, free of charge, to any person obtaining
+# a copy of this software and associated documentation files (the
+# "Software"), to deal in the Software without restriction, including
+# without limitation the rights to use, copy, modify, merge, publish,
+# distribute, sublicense, and/or sell copies of the Software, and to
+# permit persons to whom the Software is furnished to do so, subject to
+# the following conditions:
+#
+# The above copyright notice and this permission notice shall be included
+# in all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
+# KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
+# WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+#
+
+__revision__ = "__FILE__ __REVISION__ __DATE__ __DEVELOPER__"
+
+import TestSCons
+import os.path
+
+test = TestSCons.TestSCons()
+
+test.write('SConstruct', """
+def build(env, target, source):
+    file = open(str(target[0]), "wt")
+    for s in source:
+        file.write(open(str(s), 'rt').read())
+
+B = Builder(name='B', action=build, multi=1)
+env = Environment(BUILDERS = [B])
+env.B(target = 'foo.out', source = 'foo.in')
+env.B(target = 'foo.out', source = 'bar.in')
+""")
+
+test.write('foo.in', 'foo.in\n')
+test.write('bar.in', 'bar.in\n')
+
+test.run(arguments='foo.out')
+
+test.fail_test(not os.path.exists(test.workpath('foo.out')))
+test.fail_test(not test.read('foo.out') == 'foo.in\nbar.in\n')
+
+test.write('SConstruct', """
+def build(env, target, source):
+    file = open(str(target[0]), "wt")
+    for s in source:
+        file.write(open(str(s), 'rt').read())
+
+B = Builder(name='B', action=build, multi=0)
+env = Environment(BUILDERS = [B])
+env.B(target = 'foo.out', source = 'foo.in')
+env.B(target = 'foo.out', source = 'bar.in')
+""")
+
+test.run(arguments='foo.out', 
+         status=2, 
+         stderr="""
+SCons error: Multiple ways to build the same target were specified for: foo.out
+File "SConstruct", line 10, in ?
+""")
+
+test.write('SConstruct', """
+def build(env, target, source):
+    file = open(str(target[0]), "wt")
+    for s in source:
+        file.write(open(str(s), 'rt').read())
+
+B = Builder(name='B', action=build, multi=1)
+env = Environment(BUILDERS = [B])
+env.B(target = 'foo.out', source = 'foo.in', foo=1)
+env.B(target = 'foo.out', source = 'bar.in', foo=2)
+""")
+
+test.run(arguments='foo.out', 
+         status=2, 
+         stderr="""
+SCons error: Two different sets of build arguments were specified for the same target: foo.out
+File "SConstruct", line 10, in ?
+""")
+
+test.write('SConstruct', """
+def build(env, target, source):
+    file = open(str(target[0]), "wt")
+    for s in source:
+        file.write(open(str(s), 'rt').read())
+
+B = Builder(name='B', action=build, multi=1)
+env = Environment(BUILDERS = [B])
+env2 = env.Copy(CCFLAGS='foo')
+env.B(target = 'foo.out', source = 'foo.in')
+env2.B(target = 'foo.out', source = 'bar.in')
+""")
+
+test.run(arguments='foo.out', 
+         status=2, 
+         stderr="""
+SCons error: Two different environments were specified for the same target: foo.out
+File "SConstruct", line 11, in ?
+""")
+
+test.write('SConstruct', """
+def build(env, target, source):
+    file = open(str(target[0]), "wt")
+    for s in source:
+        file.write(open(str(s), 'rt').read())
+
+B = Builder(name='B', action=build, multi=0)
+env = Environment(BUILDERS = [B])
+env.B(target = 'foo.out', source = 'foo.in')
+env.B(target = 'foo.out', source = 'foo.in')
+""")
+
+test.run(arguments='foo.out')
+test.fail_test(not test.read('foo.out') == 'foo.in\n')
+
+test.write('SConstruct', """
+def build(env, target, source):
+    file = open(str(target[0]), "wt")
+    for s in source:
+        file.write(open(str(s), 'rt').read())
+
+B = Builder(name='B', action=build, multi=1)
+C = Builder(name='C', action=build, multi=1)
+env = Environment(BUILDERS = [B,C])
+env.B(target = 'foo.out', source = 'foo.in')
+env.C(target = 'foo.out', source = 'bar.in')
+""")
+
+test.run(arguments='foo.out', 
+         status=2, 
+         stderr="""
+SCons error: Two different builders (B and C) were specified for the same target: foo.out
+File "SConstruct", line 11, in ?
+""")
+
+test.write('SConstruct', """
+def build(env, target, source):
+    for t in target:
+        file = open(str(t), "wt")
+        for s in source:
+            file.write(open(str(s), 'rt').read())
+
+B = Builder(name='B', action=build, multi=1)
+env = Environment(BUILDERS = [B])
+env.B(target = ['foo.out', 'bar.out'], source = 'foo.in')
+env.B(target = ['foo.out', 'bar.out'], source = 'bar.in')
+""")
+
+test.run(arguments='bar.out')
+test.fail_test(not os.path.exists(test.workpath('bar.out')))
+test.fail_test(not test.read('bar.out') == 'foo.in\nbar.in\n')
+test.fail_test(not os.path.exists(test.workpath('foo.out')))
+test.fail_test(not test.read('foo.out') == 'foo.in\nbar.in\n')
+
+test.write('SConstruct', """
+def build(env, target, source):
+    for t in target:
+        file = open(str(target[0]), "wt")
+        for s in source:
+            file.write(open(str(s), 'rt').read())
+
+B = Builder(name='B', action=build, multi=1)
+env = Environment(BUILDERS = [B])
+env.B(target = ['foo.out', 'bar.out'], source = 'foo.in')
+env.B(target = ['bar.out', 'foo.out'], source = 'bar.in')
+""")
+
+# This is intentional. The order of the targets matter to the
+# builder because the build command can contain things like ${TARGET[0]}:
+test.run(arguments='foo.out', 
+         status=2, 
+         stderr="""
+SCons error: Two different target sets have a target in common: bar.out
+File "SConstruct", line 11, in ?
+""")
+
+# XXX It would be nice if the following two tests could be made to 
+# work by executing the action once for each unique set of
+# targets. This would make it simple to deal with PDB files on Windows like so:
+#
+#     env.Object(['foo.obj', 'vc60.pdb'], 'foo.c')
+#     env.Object(['bar.obj', 'vc60.pdb'], 'bar.c')
+
+test.write('SConstruct', """
+def build(env, target, source):
+    for t in target:
+        file = open(str(target[0]), "wt")
+        for s in source:
+            file.write(open(str(s), 'rt').read())
+
+B = Builder(name='B', action=build, multi=1)
+env = Environment(BUILDERS = [B])
+env.B(target = ['foo.out', 'bar.out'], source = 'foo.in')
+env.B(target = ['bar.out', 'blat.out'], source = 'bar.in')
+""")
+
+test.run(arguments='foo.out', 
+         status=2, 
+         stderr="""
+SCons error: Two different target sets have a target in common: bar.out
+File "SConstruct", line 11, in ?
+""")
+
+test.write('SConstruct', """
+def build(env, target, source):
+    for t in target:
+        file = open(str(target[0]), "wt")
+        for s in source:
+            file.write(open(str(s), 'rt').read())
+
+B = Builder(name='B', action=build, multi=1)
+env = Environment(BUILDERS = [B])
+env.B(target = ['foo.out', 'bar.out'], source = 'foo.in')
+env.B(target = 'foo.out', source = 'bar.in')
+""")
+
+test.run(arguments='foo.out', 
+         status=2, 
+         stderr="""
+SCons error: Two different builders (ListBuilder(B) and B) were specified for the same target: foo.out
+File "SConstruct", line 11, in ?
+""")
+
+
+
+
+test.pass_test()