diff --git a/CMakeLists.txt b/CMakeLists.txt
index fd68b59bf..2c5805a3a 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -145,9 +145,9 @@ add_subdirectory (src/shell)
 add_subdirectory (doc)
 add_subdirectory (i18n)
 add_subdirectory (scripts)
-if (EXISTS test)
+if (EXISTS ${CMAKE_SOURCE_DIR}/test)
   add_subdirectory (test EXCLUDE_FROM_ALL)
-endif (EXISTS test)
+endif (EXISTS ${CMAKE_SOURCE_DIR}/test)
 if (EXISTS performance)
   add_subdirectory (performance EXCLUDE_FROM_ALL)
 endif (EXISTS performance)
diff --git a/ChangeLog b/ChangeLog
index d395c4c52..2093ec52c 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -10,6 +10,7 @@ Features
    Gill).
  + #1227 A new 'verify_l10n' utility ensures the localizations are in sync (thanks to
    Wim Schuermann).
+ + #1250 Support out-of-tree test runs (thanks to Jakub Wilk).
  + Stores un-synched transactions in <data.location>/backlog.data.
  + Adds a new 'synchronize' command to sync data with a task server.
  + Adds a new 'sync' verbosity token, which will reminds when a backlog builds
diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt
index dd6fda4f6..6da3406de 100644
--- a/test/CMakeLists.txt
+++ b/test/CMakeLists.txt
@@ -12,17 +12,29 @@ set (test_SRCS autocomplete.t color.t config.t date.t directory.t dom.t
                width.t json_test)
 
 message ("-- Configuring run_all")
-set (TESTBLOB "*.t")
+if (${CMAKE_SOURCE_DIR} STREQUAL ${CMAKE_BINARY_DIR})
+
+set (TESTBLOB "./*.t")
 if (CYGWIN)
-set (TESTBLOB "*.t *.t.exe")
+set (TESTBLOB "./*.t ./*.t.exe")
 endif (CYGWIN)
+
+else (${CMAKE_SOURCE_DIR} STREQUAL ${CMAKE_BINARY_DIR})
+
+set (TESTBLOB "${CMAKE_SOURCE_DIR}/test/*.t ${CMAKE_BINARY_DIR}/test/*.t")
+if (CYGWIN)
+set (TESTBLOB "${CMAKE_SOURCE_DIR}/test/*.t ${CMAKE_BINARY_DIR}/test/*.t.exe")
+endif (CYGWIN)
+
+endif (${CMAKE_SOURCE_DIR} STREQUAL ${CMAKE_BINARY_DIR})
+
 configure_file (
-  ${CMAKE_SOURCE_DIR}/test/run_all.in
-  ${CMAKE_SOURCE_DIR}/test/run_all)
+  run_all.in
+  run_all)
 
 add_custom_target (test ./run_all --verbose
                                   DEPENDS ${test_SRCS} task_executable
-                                  WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}/test)
+                                  WORKING_DIRECTORY ${CMAKE_BINARY_DIR}/test)
 
 add_custom_target (build_tests DEPENDS ${test_SRCS}
                                WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}/test)
diff --git a/test/bash_completion.t b/test/bash_completion.t
index 4d1892042..2fa0a462a 100755
--- a/test/bash_completion.t
+++ b/test/bash_completion.t
@@ -41,10 +41,13 @@ if (open my $fh, '>', 'bug.rc')
   ok (-r 'bug.rc', 'Created bug.rc');
 }
 
+my $source_dir = $0;
+$source_dir =~ s{[^/]+$}{..};
+
 # Copy task.sh and make substitutions & additions needed for testing.
 if (open my $target, '>', 'task.sh')
 {
-  if (open my $source, '<', '../scripts/bash/task.sh')
+  if (open my $source, '<', "$source_dir/scripts/bash/task.sh")
   {
     while (<$source>)
     {
diff --git a/test/export.yaml.t b/test/export.yaml.t
index 614d1be93..9d307f96a 100755
--- a/test/export.yaml.t
+++ b/test/export.yaml.t
@@ -30,6 +30,9 @@ use strict;
 use warnings;
 use Test::More tests => 22;
 
+my $source_dir = $0;
+$source_dir =~ s{[^/]+$}{..};
+
 # Create the rc file.
 if (open my $fh, '>', 'export.rc')
 {
@@ -44,7 +47,7 @@ if (open my $fh, '>', 'export.rc')
 qx{../src/task rc:export.rc add priority:H project:A one 2>&1};
 qx{../src/task rc:export.rc add +tag1 +tag2 two 2>&1};
 
-my $output = qx{../src/task rc:export.rc export | ../scripts/add-ons/export-yaml.pl > ./export.txt 2>&1};
+my $output = qx{../src/task rc:export.rc export | $source_dir/scripts/add-ons/export-yaml.pl > ./export.txt 2>&1};
 my @lines;
 if (open my $fh, '<', './export.txt')
 {
diff --git a/test/import.todo.sh.t b/test/import.todo.sh.t
index da82caa8f..45da5b7ba 100755
--- a/test/import.todo.sh.t
+++ b/test/import.todo.sh.t
@@ -30,6 +30,9 @@ use strict;
 use warnings;
 use Test::More tests => 26;
 
+my $source_dir = $0;
+$source_dir =~ s{[^/]+$}{..};
+
 # Create the rc file.
 if (open my $fh, '>', 'import.rc')
 {
@@ -64,7 +67,7 @@ if (open my $fh, '>', 'import.txt')
 }
 
 # Convert todo.sh --> task JSON.
-qx{../scripts/add-ons/import-todo.sh.pl <import.txt >import.json 2>&1};
+qx{$source_dir/scripts/add-ons/import-todo.sh.pl <import.txt >import.json 2>&1};
 
 # Import the JSON.
 my $output = qx{../src/task rc:import.rc import import.json 2>&1};
diff --git a/test/import.yaml.t b/test/import.yaml.t
index 008474aec..0af9a8964 100755
--- a/test/import.yaml.t
+++ b/test/import.yaml.t
@@ -30,6 +30,9 @@ use strict;
 use warnings;
 use Test::More tests => 16;
 
+my $source_dir = $0;
+$source_dir =~ s{[^/]+$}{..};
+
 # Create the rc file.
 if (open my $fh, '>', 'import.rc')
 {
@@ -71,7 +74,7 @@ EOF
 }
 
 # Convert YAML --> task JSON.
-qx{../scripts/add-ons/import-yaml.pl <import.txt >import.json 2>&1};
+qx{$source_dir/scripts/add-ons/import-yaml.pl <import.txt >import.json 2>&1};
 
 # Import the JSON.
 my $output = qx{../src/task rc:import.rc import import.json 2>&1 >/dev/null};
@@ -123,7 +126,7 @@ EOF
 }
 
 # Convert YAML --> task JSON.
-qx{../scripts/add-ons/import-yaml.pl <import.txt >import.json 2>&1};
+qx{$source_dir/scripts/add-ons/import-yaml.pl <import.txt >import.json 2>&1};
 
 # Import the JSON.
 $output = qx{../src/task rc:import.rc import import.json 2>&1 >/dev/null};
diff --git a/test/json_test.t b/test/json_test.t
index f4709f123..1a5004db7 100755
--- a/test/json_test.t
+++ b/test/json_test.t
@@ -30,7 +30,10 @@ use strict;
 use warnings;
 use Test::More;
 
-my @files = glob "./json/*.json";
+my $source_dir = $0;
+$source_dir =~ s{[^/]+$}{..};
+
+my @files = glob "$source_dir/test/json/*.json";
 plan tests => scalar @files;
 
 my $output;
diff --git a/test/run_all.in b/test/run_all.in
index 20d178427..2157a6a66 100755
--- a/test/run_all.in
+++ b/test/run_all.in
@@ -5,7 +5,7 @@ then
   for i in ${TESTBLOB}
   do
     echo '#' $i
-    ./$i > test.log 2>&1
+    $i > test.log 2>&1
     while read LINE
     do
       echo $LINE
@@ -37,7 +37,7 @@ else
       COUNT=`expr $COUNT + 1`
     fi
 
-    ./$i >> all.log 2>&1
+    $i >> all.log 2>&1
   done
 
   if [ $BAR -eq 1 ]; then