Disable FFT plan check with FFTW < 3.3.4 (#21546)

fftw_sprint_plan wasn't available in FFTW 3.3.3. Hence show of a plan in FFTW 3.3.3 doesn't actually show the plan contents and the test will fail.
JuliaLang · Apr 26, 2017 · 6d76c23 · 6d76c23
1 parent 9501482
commit 6d76c23
Showing 1 changed file with 4 additions and 2 deletions.
diff --git a/test/fft.jl b/test/fft.jl
@@ -8,8 +8,10 @@ let a = randn(10^5,1), p1 = plan_rfft(a, flags=FFTW.ESTIMATE)
     @test p1*a ≈ p2*a
     # make sure threads are actually being used for p2
     # (tests #21163).
-    @test !contains(string(p1), "dft-thr")
-    @test contains(string(p2), "dft-thr")
+    if FFTW.version >= v"3.3.4"
+        @test !contains(string(p1), "dft-thr")
+        @test contains(string(p2), "dft-thr")
+    end
 end
 
 # fft