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test_import.py
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test_import.py
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import os
from ..utils import TranspileTestCase
class ImportTests(TranspileTestCase):
def test_import_java_module_static_method(self):
"You can invoke a static method from a native Java namespace"
self.assertJavaExecution(
"""
from java import lang
props = lang.System.getProperties()
print(props.get("file.separator"))
print("Done.")
""",
"""
%s
Done.
""" % os.path.sep)
def test_import_java_class_static_method(self):
"You can invoke a static method from a native Java class"
self.assertJavaExecution(
"""
from java.lang import System
props = System.getProperties()
print(props.get("file.separator"))
print("Done.")
""",
"""
%s
Done.
""" % os.path.sep)
def test_import_java_module(self):
"You can import a native Java namespace as a Python module"
self.assertJavaExecution(
"""
from java import lang
buf = lang.StringBuilder()
buf.append('Hello, ')
buf.append('World')
print(buf.toString())
print("Done.")
""",
"""
Hello, World
Done.
""")
def test_import_java_class(self):
"You can import a native Java class as a Python module"
self.assertJavaExecution(
"""
from java.lang import StringBuilder
buf = StringBuilder()
buf.append('Hello, ')
buf.append('World')
print(buf.toString())
print("Done.")
""",
"""
Hello, World
Done.
""")
def test_import_stdlib_module(self):
"You can import a Python module implemented in Java (a native stdlib shim)"
self.assertCodeExecution(
"""
import time
time.time()
print("Done.")
""")
def test_import_module(self):
"You can import a Python module implemented in Python"
self.assertCodeExecution(
"""
print(1)
import example
print(2)
example.some_method()
print(3)
print("Done.")
""",
extra_code={
'example':
"""
print("Now we're in the example module")
def some_method():
print("Now we're calling a module method")
"""
})
def test_multiple_module_import(self):
"You can import a multiple Python modules implemented in Python"
self.assertCodeExecution(
"""
import example, other
example.some_method()
other.other_method()
print("Done.")
""",
extra_code={
'example':
"""
print("Now we're in the example module")
def some_method():
print("Now we're calling a module method")
""",
'other':
"""
print("Now we're in the other module")
def other_method():
print("Now we're calling another module method")
"""
})
def test_full_dotted_path(self):
self.assertCodeExecution(
"""
import example.submodule
example.submodule.some_method()
print("Done.")
""",
extra_code={
'example.__init__':
"""
print("Initializing the example module")
""",
'example.submodule':
"""
print("Now we're in example.submodule")
def some_method():
print("Now we're calling a submodule method")
"""
})
def test_module_from_dotted_path(self):
self.assertCodeExecution(
"""
from example import submodule
submodule.some_method()
print("Done.")
""",
extra_code={
'example.__init__':
"""
print("Initializing the example module")
""",
'example.submodule':
"""
print("Now we're in example.submodule")
def some_method():
print("Now we're calling a submodule method")
"""
})
def test_symbol_from_dotted_path(self):
self.assertCodeExecution(
"""
from example.submodule import some_method
some_method()
print("Done.")
""",
extra_code={
'example.__init__':
"""
print("Initializing the example module")
""",
'example.submodule':
"""
print("Now we're in example.submodule")
def some_method():
print("Now we're calling a submodule method")
"""
})
def test_full_deep_dotted_path(self):
self.assertCodeExecution(
"""
import example.submodule.subsubmodule.another
example.submodule.subsubmodule.another.another_method()
print("Done.")
""",
extra_code={
'example.__init__':
"""
print("Initializing the example module")
""",
'example.submodule.__init__':
"""
print("Now we're in example.submodule.__init__")
""",
'example.submodule.other':
"""
print("Now we're in example.submodule.other")
def other_method():
print("Now we're calling a submodule method")
""",
'example.submodule.subsubmodule.__init__':
"""
print("Now we're in example.submodule.subsubmodule.__init__")
""",
'example.submodule.subsubmodule.another':
"""
print("Now we're in example.submodule.subsubmodule.another")
def another_method():
print("Now we're calling a subsubmodule method")
"""
})
def test_module_from_deep_dotted_path(self):
self.assertCodeExecution(
"""
from example.submodule.subsubmodule import another
another.another_method()
print("Done.")
""",
extra_code={
'example.__init__':
"""
print("Initializing the example module")
""",
'example.submodule.__init__':
"""
print("Now we're in example.submodule.__init__")
""",
'example.submodule.other':
"""
print("Now we're in example.submodule.other")
def other_method():
print("Now we're calling a submodule method")
""",
'example.submodule.subsubmodule.__init__':
"""
print("Now we're in example.submodule.subsubmodule.__init__")
""",
'example.submodule.subsubmodule.another':
"""
print("Now we're in example.submodule.subsubmodule.another")
def another_method():
print("Now we're calling a subsubmodule method")
"""
})
def test_symbol_from_deep_dotted_path(self):
self.assertCodeExecution(
"""
from example.submodule.subsubmodule.another import another_method
another_method()
print("Done.")
""",
extra_code={
'example.__init__':
"""
print("Initializing the example module")
""",
'example.submodule.__init__':
"""
print("Now we're in example.submodule.__init__")
""",
'example.submodule.other':
"""
print("Now we're in example.submodule.other")
def other_method():
print("Now we're calling a submodule method")
""",
'example.submodule.subsubmodule.__init__':
"""
print("Now we're in example.submodule.subsubmodule.__init__")
""",
'example.submodule.subsubmodule.another':
"""
print("Now we're in example.submodule.subsubmodule.another")
def another_method():
print("Now we're calling a subsubmodule method")
"""
})
def test_symbol_import(self):
self.assertCodeExecution(
"""
from example import some_method
some_method()
print("Done.")
""",
extra_code={
'example':
"""
print("Now we're in the example module")
def some_method():
print("Now we're calling a module method")
"""
})
def test_multiple_symbol_import(self):
self.assertCodeExecution(
"""
from example import some_method, other_method
print("Call some method...")
some_method()
print("Call another method...")
other_method()
try:
print("But this will fail...")
third_method()
except NameError:
print("Which it does.")
print("Done.")
""",
extra_code={
'example':
"""
print("Now we're in the example module")
def some_method():
print("Now we're calling a module method")
def other_method():
print("Now we're calling another module method")
def third_method():
print("This shouldn't be called")
"""
})
def test_import_star(self):
self.assertCodeExecution(
"""
from example import *
print("Call some method...")
some_method()
print("Call another method...")
other_method()
print("Call a third method...")
third_method()
print("Done.")
""",
extra_code={
'example':
"""
print("Now we're in the example module")
def some_method():
print("Now we're calling a module method")
def other_method():
print("Now we're calling another module method")
def third_method():
print("Now we're calling a third module method")
"""
}, run_in_function=False)
def test_import_star_with_all(self):
self.assertCodeExecution(
"""
from example import *
print("Call some method...")
some_method()
print("Call another method...")
other_method()
try:
print("But this will fail...")
third_method()
except NameError:
print("Which it does.")
print("Done.")
""",
extra_code={
'example':
"""
__all__ = ['some_method', 'other_method']
print("Now we're in the example module")
def some_method():
print("Now we're calling a module method")
def other_method():
print("Now we're calling another module method")
def third_method():
print("This shouldn't be called")
"""
}, run_in_function=False)