expect --to-contain tests

plugins/fish-spec/spec/expect.to_contain.spec.fish

+import plugins/fish-spec
+
+function describe_to_contain -d 'expect --to-contain'
+  function before_each
+    set -e result
+  end
+
+  function it_returns_0_when_arrays_are_the_same
+    set -l array 1 2
+
+    echo (expect $array --to-contain $array; set result $status) >/dev/null
+    expect $result --to-equal 0
+  end
+
+  function it_returns_1_when_arrays_are_different
+    set -l array 1 2
+
+    echo (expect $array --to-contain 8 9; set result $status) >/dev/null
+    expect $result --to-equal 1
+  end
+
+  function it_returns_0_when_arrays_have_the_same_elements_but_in_different_order
+    set -l array 1 2
+
+    echo (expect $array --to-contain 2 1; set result $status) >/dev/null
+    expect $result --to-equal 0
+  end
+
+  function it_returns_0_when_expected_array_contains_the_element
+    set -l array 1 2
+
+    echo (expect $array --to-contain 1; set result $status) >/dev/null
+    expect $result --to-equal 0
+  end
+
+  function it_returns_1_when_expected_array_does_not_contain_the_element
+    set -l array 1 2
+
+    echo (expect $array --to-contain 9; set result $status) >/dev/null
+    expect $result --to-equal 1
+  end
+
+  function it_returns_0_when_expected_array_contains_all_elements
+    set -l array 1 2 3
+
+    echo (expect $array --to-contain 1 2; set result $status) >/dev/null
+    expect $result --to-equal 0
+  end
+
+  function it_returns_1_when_expected_array_does_not_contain_all_elements
+    set -l array 1 2 3
+
+    echo (expect $array --to-contain 1 2 9; set result $status) >/dev/null
+    expect $result --to-equal 1
+  end
+
+  function it_returns_1_when_expected_array_contains_less_elements
+    set -l array 1 2
+
+    echo (expect $array --to-contain 1 2 9; set result $status) >/dev/null
+    expect $result --to-equal 1
+  end
+end
+
+spec.run $argv