def test_readme_task(self):
        t = Task("task_name")
        t.inputs.append(Input(WdlType.parse_type("String"), "taskGreeting"))
        # command in next section
        t.outputs.append(
            Output(WdlType.parse_type("File"), "standardOut", "stdout()"))

        command = Task.Command("echo")
        command.inputs.append(
            Task.Command.CommandInput(
                "taskGreeting",
                optional=False,
                position=None,
                prefix="-a",
                separate_value_from_prefix=True,
                default=None,
            ))
        command.inputs.append(
            Task.Command.CommandInput(
                "otherInput",
                optional=True,
                position=2,
                prefix="optional-param=",
                separate_value_from_prefix=False,
                default=None,
            ))

        # t is the task
        t.command = command
        print(t.get_string())
    def test_simple_task(self):
        # Task based on: https://github.com/openwdl/wdl/blob/master/versions/draft-2/SPEC.md#introduction
        t = Task("hello",
                 runtime=Task.Runtime(docker="broadinstitute/my_image"))
        t.inputs.extend([
            Input(WdlType.parse_type("String"), "pattern"),
            Input(WdlType.parse_type("File"), "in"),
        ])

        t.outputs.append(
            Output(WdlType.parse_type("Array[String]"), "matches",
                   "read_lines(stdout())"))

        t.command = Task.Command(
            "egrep",
            inputs=[Task.Command.CommandInput.from_input(i) for i in t.inputs])

        print(t.get_string())
        return t
    def test_hello_tasks():
        # https://github.com/openwdl/wdl/#specifying-inputs-and-using-declarations

        t1 = Task(
            "hello",
            inputs=[Input(String, "name"),
                    Input(String, "salutation")],
            outputs=[Output(String, "response", "read_string(stdout())")],
        )
        t1.command = Task.Command(
            "echo",
            inputs=[
                Task.Command.CommandInput.from_input(t1.inputs[i], position=i)
                for i in range(2)
            ],
        )

        print(t1.get_string())

        return t1