objectionary#153 - added blank-string matcher

src/main/eo/org/eolang/hamcrest/assert-that.eo

@@ -24,6 +24,7 @@
 +alias org.eolang.hamcrest.matchers.any-of-matcher
 +alias org.eolang.hamcrest.matchers.anything-matcher
 +alias org.eolang.hamcrest.matchers.array-each-matcher
++alias org.eolang.hamcrest.matchers.blank-string-matcher
 +alias org.eolang.hamcrest.matchers.close-to-matcher
 +alias org.eolang.hamcrest.matchers.contains-string-matcher
 +alias org.eolang.hamcrest.matchers.described-as-matcher
@@ -160,3 +161,7 @@
   [str] > is-substring
     is-substring-matcher > @
       str
+
+  # Tests if the examined string contains zero or more whitespace characters and nothing else.
+  [] > blank-string
+    blank-string-matcher > @

src/main/eo/org/eolang/hamcrest/matchers/blank-string-matcher.eo

@@ -0,0 +1,49 @@
+# MIT License
+#
+# Copyright (c) 2022 Graur Andrew
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in all
+# copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+
++alias org.eolang.txt.text
++alias sprintf org.eolang.txt.sprintf
++home https://github.com/objectionary/eo-hamcrest
++package org.eolang.hamcrest.matchers
++rt jvm org.eolang:eo-hamcrest:0.0.0
++version 0.0.0
+
+# Tests if the examined string contains zero or more whitespace characters and nothing else.
+[] > blank-string-matcher
+
+  [a] > match
+    text a > str!
+    or. > @
+      eq.
+        str
+        ""
+      eq.
+        str
+        " "
+
+  [act] > describe-mismatch
+    sprintf > @
+      "was <%s>"
+      act
+
+  [] > description-of
+    "blank string" > @

src/test/eo/org/eolang/hamcrest/blank-string-tests.eo

@@ -0,0 +1,42 @@
+# MIT License
+#
+# Copyright (c) 2020-2022 Graur Andrew
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in all
+# copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+
++alias org.eolang.hamcrest.assert-that
++home https://github.com/objectionary/eo-hamcrest
++junit
++package org.eolang.hamcrest
++version 0.0.0
+
+[] > simple-blank-string
+  assert-that > @
+    ""
+    $.blank-string
+    "simple-blank-string"
+
+[] > simple-blank-string-with-space
+  assert-that > @
+    " "
+    $.is
+      $.blank-string
+    "simple-blank-string-with-space"
+
+

src/test/eo/org/eolang/hamcrest/failed-output/blank-string-failed-output.eo

@@ -0,0 +1,49 @@
+# MIT License
+#
+# Copyright (c) 2020-2022 Graur Andrew
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in all
+# copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+
++alias org.eolang.hamcrest.assert-that
++home https://github.com/objectionary/eo-hamcrest
++junit
++package org.eolang.hamcrest.failed-output
++version 0.0.0
+
+[] > simple-blank-string-failed
+  [] > suggestion
+    assert-that > @
+      "Привет, 世界"
+      $.blank-string
+      "simple-blank-string"
+  assert-that > @
+    suggestion
+    $.equal-to "simple-blank-string\nExpected: blank string\n     but: was <Привет, 世界>"
+
+[] > is-blank-string-failed
+  [] > suggestion
+    assert-that > @
+      "Привет, 世界"
+      $.is
+        $.blank-string
+      "simple-blank-string"
+  assert-that > @
+    suggestion
+    $.equal-to "simple-blank-string\nExpected: is blank string\n     but: was <Привет, 世界>"
+