Submitted upstream: https://github.com/ibus/ibus-anthy/pull/35

diff --git a/tests/test-build.sh b/tests/test-build.sh
index e83b78f..bbfa7e1 100755
--- a/tests/test-build.sh
+++ b/tests/test-build.sh
@@ -63,26 +63,33 @@ parse_args()
     done;
 }
 
+maybe_install_pycotap() {
+    # Red Hat specific hint.
+    if test -f /etc/redhat-release ; then
+        if ! rpm -q --quiet python3-pycotap; then
+            echo "Please install python3-pycotap"
+            exit -1
+        fi
+    fi;
+
+    # Check if pycotap is already available.
+    if ! python3 -m pycotap >/dev/null; then
+        echo "pycotap not found; installing via pip"
+        if ! pip install pycotap --user; then
+            echo "failed to install pycotap"
+            exit -1
+        fi
+    fi
+}
+
 init_environment()
 {
     if test x$FORCE_TEST != x ; then
         RUN_ARGS="$RUN_ARGS --force";
     fi;
-    HAS_TAP=0;
-    if test -f /etc/redhat-release ; then
-        rpm -q --quiet python3-pycotap
-        if test $? -ne 0 ; then
-            echo "Not found python3-pycotap";
-            exit -1;
-	fi;
-        HAS_TAP=1;
-    fi;
-    TAP_DIR=`python -m site --user-site`/pycotap;
-    if test $HAS_TAP -ne 1 && \
-       test x"$TAP_DIR" != x && test ! -d "$TAP_DIR" ; then
-            echo "pip install pycotap --user";
-            pip install pycotap --user;
-    fi;
+
+    maybe_install_pycotap
+
     if test ! -f $BUILDDIR/../data/$ANTHY_SCHEMA_FILE ; then
         echo "Not found $BUILDDIR/../data/$ANTHY_SCHEMA_FILE";
         exit -1;
orm class='right' method='get' action='/guix/log/gnu/packages/ninja.scm'>
<input type='hidden' name='id' value='cf879dc0b6fcbf9c49515209f8c0d92cebc98d84'/><select name='qt'>
<option value='grep'>log msg</option>
<option value='author'>author</option>
<option value='committer'>committer</option>
<option value='range'>range</option>
</select>
<input class='txt' type='search' size='10' name='q' value=''/>
<input type='submit' value='search'/>
</form>
</td></tr></table>
<div class='path'>path: <a href='/guix/log/?id=cf879dc0b6fcbf9c49515209f8c0d92cebc98d84'>root</a>/<a href='/guix/log/gnu?id=cf879dc0b6fcbf9c49515209f8c0d92cebc98d84'>gnu</a>/<a href='/guix/log/gnu/packages?id=cf879dc0b6fcbf9c49515209f8c0d92cebc98d84'>packages</a>/<a href='/guix/log/gnu/packages/ninja.scm?id=cf879dc0b6fcbf9c49515209f8c0d92cebc98d84'>ninja.scm</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/guix/log/gnu/packages/ninja.scm?id=cf879dc0b6fcbf9c49515209f8c0d92cebc98d84&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2021-05-22 17:08:13 +0200'>2021-05-22</span></td><td><a href='/guix/commit/gnu/packages/ninja.scm?id=bd6cb1d4ebb3da1110025e1a73a299bed4174035'>gnu: ninja: Update to 1.10.2.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/ninja.scm (ninja): Update to 1.10.2.
[arguments]: Remove trailing #t's.
</span></span></td><td>Marius Bakke</td></tr>
<tr><td><span title='2020-02-03 15:29:15 +0100'>2020-02-03</span></td><td><a href='/guix/commit/gnu/packages/ninja.scm?id=8928425756a9cc162bc38888a7c7084fcc777bd1'>gnu: ninja: Update to 1.10.0.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/ninja.scm (ninja): Update to 1.10.0.
</span></span></td><td>Marius Bakke</td></tr>
<tr><td><span title='2020-02-03 15:29:15 +0100'>2020-02-03</span></td><td><a href='/guix/commit/gnu/packages/ninja.scm?id=181171ffdb4bdb534a4ce0fb631fa7cf103a2996'>gnu: ninja: Do not use unstable tarball.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/ninja.scm (ninja)[source]: Change to GIT-FETCH.
</span></span></td><td>Marius Bakke</td></tr>
<tr><td><span title='2019-07-07 18:38:19 +0200'>2019-07-07</span></td><td><a href='/guix/commit/gnu/packages/ninja.scm?id=2c886af91154916a656aeecf6ba517e0cdc6fe93'>gnu: ninja: Python is a regular input.</a><span class='msg-avail'>...<span class='msg-tooltip'>Ninja uses Python at run time, so it must not be a native input.

* gnu/packages/ninja.scm (ninja)[native-inputs]: Change to ...
[inputs]: ... this.
</span></span></td><td>Marius Bakke</td></tr>
<tr><td><span title='2019-07-07 18:38:19 +0200'>2019-07-07</span></td><td><a href='/guix/commit/gnu/packages/ninja.scm?id=b78491f857d974afa8339f778772e0a140a1c344'>gnu: ninja: Build against Python 3.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/ninja.scm (ninja)[native-inputs]: Change PYTHON-2 to PYTHON-WRAPPER.
</span></span></td><td>Marius Bakke</td></tr>
<tr><td><span title='2019-02-10 21:04:22 +0100'>2019-02-10</span></td><td><a href='/guix/commit/gnu/packages/ninja.scm?id=18df1ab122b81f8147c2f8e5cf937bc62ebd292d'>gnu: ninja: Update to 1.9.0.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/ninja.scm (ninja): Update to 1.9.0.
</span></span></td><td>Marius Bakke</td></tr>