Add func test.

tests/functional/isolate-icp-fcp/00-simple.t

@@ -0,0 +1,22 @@
+#!/usr/bin/env bash
+# THIS FILE IS PART OF THE CYLC WORKFLOW ENGINE.
+# Copyright (C) NIWA & British Crown (Met Office) & Contributors.
+# 
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#-------------------------------------------------------------------------------
+# Test optinoal isolation of initial and final cycle point graphs.
+. "$(dirname "$0")/test_header"
+set_test_number 2
+reftest
+exit

tests/functional/isolate-icp-fcp/00-simple/flow.cylc

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+# Test optional isolation of initial and final cycle point graphs.
+[scheduler]
+    [[events]]
+        stall timeout = PT0S
+        abort on stall timeout = True
+[scheduling]
+    cycling mode = integer
+    final cycle point = 3
+    isolate initial cycle point = True
+    isolate final cycle point = True
+    [[graph]]
+        R1 = "prep => foo"
+        P1 = "foo"
+        R1/$ = "foo => clean"
+[runtime]
+    [[prep]]
+        script = "sleep 5"
+    [[foo]]
+        script = """
+            # No foo instance should start before prep is finished.
+            grep -s "1/prep running .* succeeded" "${CYLC_WORKFLOW_LOG_DIR}/log"
+            if ((CYLC_TASK_CYCLE_POINT == 1)); then
+                sleep 5
+            fi
+        """
+    [[clean]]
+        script = """
+            # Clean should not run before 1/foo is finished.
+            grep -s "1/foo running .* succeeded" "${CYLC_WORKFLOW_LOG_DIR}/log"
+        """

tests/functional/isolate-icp-fcp/00-simple/reference.log

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+1/prep -triggered off [] in flow 1
+1/foo -triggered off ['1/prep'] in flow 1
+2/foo -triggered off [] in flow 1
+3/foo -triggered off [] in flow 1
+3/clean -triggered off ['3/foo'] in flow 1

tests/functional/isolate-icp-fcp/test_header

@@ -0,0 +1 @@
+../lib/bash/test_header