Add a test that will ensure that AutoFactory continues to generate Java7-compatible code, even if the processor itself is changed so it only runs on Java 8.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=150903705

1 files changed, 47 insertions, 0 deletions

diff --git a/factory/src/it/functional/java7_compat_test.sh b/factory/src/it/functional/java7_compat_test.sh
new file mode 100755
index 00000000..c3365e18
--- /dev/null
+++ b/factory/src/it/functional/java7_compat_test.sh
@@ -0,0 +1,47 @@
+#!/bin/bash
+# Test that the code generated by AutoFactory can run on Java 7.
+# The AutoFactory processor itself runs on Java 8, but the code it
+# generates is supposed to be able to run on Java 7.
+#
+# Users can achieve that by compiling like this:
+#   javac -source 7 -target 7 -bootclasspath .../rt.jar
+# where javac is the one from Java 8 or later and .../rt.jar is
+# the one from Java 7. 
+#
+# So this test basically does the same thing, using a large functional
+# test as input. If that test compiles and runs, it is a good sign
+# that user code will too.
+
+# Exit if any command fails.
+set -e
+
+# Arguments are the fully-qualified name of the test class, followed by
+# the path to each source file.
+TEST_CLASS="$1"
+if [ -z "${TEST_CLASS}" ]; then
+  echo "Usage: $0 TEST_CLASS" >&2
+  exit 1
+fi
+shift
+
+MY_DIR=$(dirname "${TEST_BINARY}")
+SOURCE_FILES=$(for f in "$@"; do echo "${MY_DIR}/${f}"; done)
+
+JDK8=third_party/java/jdk/jdk-64
+JDK7=third_party/java/jdk/jdk7-64
+JDK8_JAVAC="${JDK8}"/bin/javac
+JDK7_JAVA="${JDK7}"/bin/java
+CLASS_PATH="${MY_DIR}"/java7_compat_test_java_deps.jar
+BOOT_PATH="${JDK7}"/jre/lib/rt.jar
+PROCESSOR_PATH=\
+third_party/java/auto/auto_factory_ide.jar:\
+third_party/java/dagger/dagger_components_ide.jar
+
+"${JDK8_JAVAC}" -d "${TEST_TMPDIR}" \
+    -encoding utf8 -source 7 -target 7 \
+    -bootclasspath "${BOOT_PATH}" \
+    -classpath "${CLASS_PATH}" \
+    -processorpath "${PROCESSOR_PATH}" \
+    ${SOURCE_FILES}
+"${JDK7_JAVA}" -classpath "${TEST_TMPDIR}:${CLASS_PATH}" \
+    org.junit.runner.JUnitCore "${TEST_CLASS}"