sgilmore10 commented on code in PR #37013:
URL: https://github.com/apache/arrow/pull/37013#discussion_r1283487993


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matlab/test/arrow/tabular/tSchema.m:
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@@ -0,0 +1,474 @@
+% Licensed to the Apache Software Foundation (ASF) under one or more
+% contributor license agreements.  See the NOTICE file distributed with
+% this work for additional information regarding copyright ownership.
+% The ASF licenses this file to you under the Apache License, Version
+% 2.0 (the "License"); you may not use this file except in compliance
+% with the License.  You may obtain a copy of the License at
+%
+%   http://www.apache.org/licenses/LICENSE-2.0
+%
+% Unless required by applicable law or agreed to in writing, software
+% distributed under the License is distributed on an "AS IS" BASIS,
+% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+% implied.  See the License for the specific language governing
+% permissions and limitations under the License.
+
+classdef tSchema < matlab.unittest.TestCase
+% Tests for the arrow.tabular.Schema class and the associated arrow.schema
+% construction function.
+
+    methods(Test)
+
+        function ErrorIfUnsupportedInputType(testCase)
+            % Verify that an error is thrown by arrow.schema if an
+            % unsupported input argument is supplied.
+            testCase.verifyError(@() arrow.schema("test"), 
"MATLAB:validation:UnableToConvert");
+        end
+
+        function ErrorIfUnsupportedConstructorInputs(testCase)
+            % Verify that an error is thrown by the constructor of
+            % arrow.tabular.Schema if unsupported arguments are passed to
+            % the constructor.
+            testCase.verifyError(@() arrow.tabular.Schema("test"), 
"MATLAB:validation:UnableToConvert");
+        end
+
+        function ErrorIfTooFewInputs(testCase)
+            % Verify that an error is thrown by arrow.schema if too few
+            % input arguments are supplied.
+            testCase.verifyError(@() arrow.schema(), "MATLAB:minrhs");
+        end
+
+        function ErrorIfTooManyInputs(testCase)
+            % Verify that an error is thrown by arrow.schema if too many
+            % input arguments are supplied.
+            testCase.verifyError(@() arrow.schema("a", "b", "c"), 
"MATLAB:TooManyInputs");
+        end
+
+        function ClassType(testCase)
+            % Verify that the class type of the object returned by a call
+            % to arrow.schema is "arrow.tabular.Schema".
+            schema = arrow.schema(arrow.field("A", arrow.uint8));
+            testCase.verifyInstanceOf(schema, "arrow.tabular.Schema");

Review Comment:
   I didn't know about `verifyInstanceOf`.  I like it :)



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