addGroup: add Block group tests

Author: mpsonntag

tests/TestBlock.m

@@ -25,6 +25,9 @@
     funcs{end+1} = @test_has_tag;
     funcs{end+1} = @test_set_metadata;
     funcs{end+1} = @test_open_metadata;
+    funcs{end+1} = @test_create_group;
+    funcs{end+1} = @test_delete_group;
+    funcs{end+1} = @test_has_group;
 end
 
 function [] = test_attrs( varargin )
@@ -371,3 +374,63 @@
 
     assert(strcmp(b.open_metadata.name, 'testSection'));
 end
+
+%% Test: Create Group
+function [] = test_create_group( varargin )
+    fileName = 'testRW.h5';
+    groupName = 'testGroup';
+    groupType = 'nixGroup';
+
+    f = nix.File(fullfile(pwd, 'tests', fileName), nix.FileMode.Overwrite);
+    b = f.createBlock('grouptest', 'nixBlock');
+
+    assert(isempty(b.groups));
+
+    g = b.create_group(groupName, groupType);
+    assert(strcmp(g.name, groupName));
+    assert(strcmp(g.type, groupType));
+    assert(~isempty(b.groups));
+
+    clear g b f;
+    f = nix.File(fullfile(pwd, 'tests', fileName), nix.FileMode.ReadOnly);
+    assert(~isempty(f.blocks{1}.groups));
+    assert(strcmp(f.blocks{1}.groups{1}.name, groupName));
+end
+
+%% Test: delete group by entity and id
+function [] = test_delete_group( varargin )
+    fileName = 'testRW.h5';
+    groupType = 'nixGroup';
+
+    f = nix.File(fullfile(pwd, 'tests', fileName), nix.FileMode.Overwrite);
+    b = f.createBlock('grouptest', 'nixBlock');
+    g1 = b.create_group('testGroup1', groupType);
+    g2 = b.create_group('testGroup2', groupType);
+
+    assert(size(b.groups, 1) == 2);
+    assert(b.delete_group(b.groups{2}.id));
+    assert(size(b.groups, 1) == 1);
+    assert(b.delete_group(b.groups{1}));
+    assert(isempty(b.groups));
+
+    assert(~b.delete_group('I do not exist'));
+
+    clear g b f;
+    f = nix.File(fullfile(pwd, 'tests', fileName), nix.FileMode.ReadOnly);
+    assert(isempty(f.blocks{1}.groups));
+end
+
+%% Test: Block has Group by entity
+function [] = test_has_group( varargin )
+%{
+    f = nix.File(fullfile(pwd, 'tests', 'testRW.h5', nix.FileMode.Overwrite));
+    b = f.createBlock('grouptest', 'nixBlock');
+
+    g = b.create_group('testGroup', 'nixGroup');
+    assert(b.has_group(b.groups{1}));
+
+    b.delete_group(b.groups{1});
+    assert(~b.has_group(g));
+%}
+    disp('Test Block.has_group ... TODO (function not working at the moment)');
+end