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Testsuite added with covers common symlink cases.
Testsuite added with covers common symlink cases.
Testsuit was added to be able to test common symlink madness cases and to verify wether symlinks behaves correct.pull/2/head
Philipp Lutz
10 years ago
3 changed files with 195 additions and 1 deletions
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#!/usr/bin/env bash |
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# |
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# Unit test for symlinks |
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# Generate artificial rootfs for testing purpose |
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# |
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SYMLINKS_BIN=../symlinks |
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ROOTFS_FOLDER=rootfs |
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TEST_FOLDER=$(dirname $0) |
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# create rootfs folder and cd into it |
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mkdir -p $TEST_FOLDER/$ROOTFS_FOLDER |
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cd $TEST_FOLDER/$ROOTFS_FOLDER |
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echo "* Creating artificial rootfs in $TEST_FOLDER/$ROOTFS_FOLDER" |
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################################################################################################### |
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# Create an example rootfs |
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################################################################################################### |
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mkdir -p usr \ |
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lib \ |
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etc \ |
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opt \ |
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usr/bin \ |
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usr/sbin \ |
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usr/share \ |
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usr/lib \ |
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usr/lib/toolchain/bin \ |
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usr/lib/libsomething \ |
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usr/lib/jvm/java-1.5-jdk-1.5.2/bin \ |
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etc/alternatives \ |
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lib/toolchain1/bin \ |
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lib/toolchain2/bin |
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touch usr/lib/libsomething/libsomething.so.1.1.1 \ |
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usr/lib/libsomething/libsomething.so.1.1.2 \ |
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usr/lib/libsomething/libsomething.so.1.2.1 \ |
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usr/lib/libsomething/libsomething.so.1.2.2 \ |
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usr/lib/libsomething/libsomething.so.1.2.3 \ |
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usr/lib/libsomething/libsomething.so.2.1.1 \ |
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usr/lib/libsomething/libsomething.so.2.1.2 \ |
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usr/lib/libsomething/libsomething.so.2.1.3 \ |
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lib/toolchain1/bin/tool1 \ |
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lib/toolchain1/bin/tool2 \ |
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lib/toolchain2/bin/tool1 \ |
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lib/toolchain2/bin/tool2 \ |
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usr/lib/jvm/java-1.5-jdk-1.5.2/jdk-config \ |
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usr/lib/jvm/java-1.5-jdk-1.5.2/bin/java |
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################################################################################################### |
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# Test case #1: normal chained / cascaded symlinks in the case of software versioning |
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# |
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# Expected Result: do nothing, everything is fine here! |
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################################################################################################### |
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ln -sf libsomething.so.1.1.2 \ |
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usr/lib/libsomething/libsomething.so.1.1 |
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ln -sf libsomething.so.1.2.3 \ |
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usr/lib/libsomething/libsomething.so.1.2 |
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ln -sf libsomething.so.1.2.3 \ |
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usr/lib/libsomething/libsomething.so.1 |
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ln -sf libsomething.so.2.1.3 \ |
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usr/lib/libsomething/libsomething.so.2.1 |
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ln -sf libsomething.so.2.1 \ |
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usr/lib/libsomething/libsomething.so.2 |
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ln -sf libsomething.so.2 \ |
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usr/lib/libsomething/libsomething.so |
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ln -s java-1.5-jdk-1.5.2 \ |
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usr/lib/jvm/java-1.5-jdk |
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################################################################################################### |
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# Test case #2: absolute symlinks |
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# |
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# Expected result: change absolute symlinks into relative ones |
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################################################################################################### |
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ln -sf /lib/toolchain2/bin/tool1 \ |
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usr/lib/toolchain/bin/ |
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ln -sf /lib/toolchain2/bin/tool2 \ |
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usr/lib/toolchain/bin/ |
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################################################################################################### |
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# Test case #3: detect dangling symlinks as in the case of messed up library versioning |
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# |
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# Expected result: detect and delete all symlinks which are involved |
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################################################################################################### |
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# now let's create a symlink to a target which doesn't exist |
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ln -sf libsomething.so.2.1.4 \ |
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usr/lib/libsomething/libsomething.so.2.1 |
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################################################################################################### |
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# Test case #4: recursive mess of absolute symlinks |
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# |
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# Expected result: resolve all symlinks, at least after second run! |
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################################################################################################### |
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ln -sf /usr/lib/toolchain/bin/tool1 \ |
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etc/alternatives/ |
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ln -sf /usr/lib/toolchain/bin/tool2 \ |
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etc/alternatives/ |
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ln -sf /usr/lib/jvm/java-1.5-jdk \ |
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etc/alternatives/java-sdk |
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ln -sf /usr/lib/jvm/java-1.5-jdk/bin/java \ |
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etc/alternatives/java |
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ln -sf /etc/alternatives/java \ |
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usr/bin/ |
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@ -0,0 +1,81 @@ |
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#!/usr/bin/env bash |
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# |
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# Unit test for symlinks |
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# Run test on a test set e.g. an artificially created rootfs |
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# |
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SYMLINKS_BIN=../symlinks |
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ROOTFS_FOLDER=rootfs |
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ROOTFS_DANGLING_LINKS=3 |
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TEST_FOLDER=$(dirname $0) |
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echo "* Running unit tests on $TEST_FOLDER/$ROOTFS_FOLDER" |
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################################################################################################### |
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# Simple test which should cover all test cases implemented in (generate-rootfs.sh): |
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# |
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# Test case #1: normal chained / cascaded symlinks in the case of software versioning |
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# Expected Result: do nothing, everything is fine here! |
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# |
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# Test case #2: absolute symlinks |
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# Expected result: change absolute symlinks into relative ones |
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# |
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# Test case #3: detect dangling symlinks as in the case of messed up library versioning |
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# Expected result: detect and delete all symlinks which are involved |
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# |
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# Test case #4: recursive mess of absolute symlinks |
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# Expected result: resolve all symlinks, at least after second run! |
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################################################################################################### |
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# let's run symlink against the just generated rootfs folder and see how it does: |
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# cd into rootfs folder first |
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cd $TEST_FOLDER/$ROOTFS_FOLDER |
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# call 'symlinks' to convert all absolute symlinks to relative ones with the following options: |
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# -v verbose |
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# -r recursive |
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# -c change absolute links into relative links |
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COUNT=0 |
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while [ "$(../$SYMLINKS_BIN -verc . | grep absolute)" ]; do |
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COUNT=$((COUNT+1)) |
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echo "Test run #$COUNT" |
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done |
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# call 'symlinks' again to get rid of the remaining dangling symlinks which could not be fixed |
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echo "Last run to fix the remaining dangling symlinks" |
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DANGLING_SYMLINKS_COUNT=$(../$SYMLINKS_BIN -verd . | grep dangling | wc -l) |
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echo "Removed $DANGLING_SYMLINKS_COUNT dangling links!" |
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if [ $DANGLING_SYMLINKS_COUNT -lt $ROOTFS_DANGLING_LINKS ]; then |
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echo "Detected and removed too less broken symlinks!" |
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elif [ $DANGLING_SYMLINKS_COUNT -gt $ROOTFS_DANGLING_LINKS ]; then |
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echo "Detected and removed too many broken symlinks!" |
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fi |
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# now let's look if there are broken symlinks left, 'find' offers some easy way to do that |
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BROKEN_SYMLINKS=$(find -L -type l) |
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# and also if there are still existing (maybe even working) absolute symlinks left |
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ABSOLUTE_SYMLINKS=$(find -type l -exec readlink {} \; | grep "^/") |
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if [ "$BROKEN_SYMLINKS" ] || [ "$ABSOLUTE_SYMLINKS" ]; then |
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echo "Test failed, program was not able to fix all symlink problems..." |
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if [ "$BROKEN_SYMLINKS" ]; then |
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echo "The following symlinks have not been fixed:" |
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for link in $BROKEN_SYMLINKS; do |
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echo -e "\t * $link -> $(readlink $link)" |
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done |
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fi |
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if [ "$ABSOLUTE_SYMLINKS" ]; then |
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echo "There are still (maybe even working) absolute symlinks left:" |
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for link in $ABSOLUTE_SYMLINKS; do |
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echo -e "\t * $link -> $(readlink $link)" |
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done |
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fi |
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else |
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echo "Test succeeded, it seems symlinks was able to solve all symlink problems!" |
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fi |
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