## Testing

Testing — Utilities for testing GTK+ applications

## Synopsis

    #include <gtk/gtk.h>

    GtkWidget *         gtk_test_create_simple_window       (const gchar *window_title,
                                                             const gchar *dialog_text);
    GtkWidget *         gtk_test_create_widget              (GType widget_type,
                                                             const gchar *first_property_name,
                                                             ...);
    GtkWidget *         gtk_test_display_button_window      (const gchar *window_title,
                                                             const gchar *dialog_text,
                                                             ...);
    GtkWidget *         gtk_test_find_label                 (GtkWidget *widget,
                                                             const gchar *label_pattern);
    GtkWidget *         gtk_test_find_sibling               (GtkWidget *base_widget,
                                                             GType widget_type);
    GtkWidget *         gtk_test_find_widget                (GtkWidget *widget,
                                                             const gchar *label_pattern,
                                                             GType widget_type);
    void                gtk_test_init                       (int *argcp,
                                                             char ***argvp,
                                                             ...);
    const GType *       gtk_test_list_all_types             (guint *n_types);
    void                gtk_test_register_all_types         (void);
    double              gtk_test_slider_get_value           (GtkWidget *widget);
    void                gtk_test_slider_set_perc            (GtkWidget *widget,
                                                             double percentage);
    gboolean            gtk_test_spin_button_click          (GtkSpinButton *spinner,
                                                             guint button,
                                                             gboolean upwards);
    gchar *             gtk_test_text_get                   (GtkWidget *widget);
    void                gtk_test_text_set                   (GtkWidget *widget,
                                                             const gchar *string);
    gboolean            gtk_test_widget_click               (GtkWidget *widget,
                                                             guint button,
                                                             GdkModifierType modifiers);
    gboolean            gtk_test_widget_send_key            (GtkWidget *widget,
                                                             guint keyval,
                                                             GdkModifierType modifiers);
    void                gtk_test_widget_wait_for_draw       (GtkWidget *widget);

## Description

## Details

### gtk_test_create_simple_window ()

    GtkWidget *         gtk_test_create_simple_window       (const gchar *window_title,
                                                             const gchar *dialog_text);

Create a simple window with window title `window_title` and text contents `dialog_text`. The window will quit any running `gtk_main()`-loop when destroyed, and it will automatically be destroyed upon test function teardown.

`window_title` : | Title of the window to be displayed.
`dialog_text` : | Text inside the window to be displayed.
Returns : | a widget pointer to the newly created GtkWindow. [transfer none]

Since 2.14

### gtk_test_create_widget ()

    GtkWidget *         gtk_test_create_widget              (GType widget_type,
                                                             const gchar *first_property_name,
                                                             ...);

This function wraps `g_object_new()` for widget types. It'll automatically show all created non window widgets, also `g_object_ref_sink()` them (to keep them alive across a running test) and set them up for destruction during the next test teardown phase.

`widget_type` : | a valid widget type.
`first_property_name` : | Name of first property to set or `NULL`. [allow-none]
`...` : | value to set the first property to, followed by more name-value pairs, terminated by `NULL`
Returns : | a newly created widget. [transfer none]

Since 2.14

### gtk_test_display_button_window ()

    GtkWidget *         gtk_test_display_button_window      (const gchar *window_title,
                                                             const gchar *dialog_text,
                                                             ...);

Create a window with window title `window_title`, text contents `dialog_text`, and a number of buttons, according to the paired argument list given as @... parameters. Each button is created with a `label` and a ::clicked signal handler that incremrents the integer stored in `nump`. The window will be automatically shown with `gtk_widget_show_now()` after creation, so when this function returns it has already been mapped, resized and positioned on screen. The window will quit any running `gtk_main()`-loop when destroyed, and it will automatically be destroyed upon test function teardown.

`window_title` : | Title of the window to be displayed.
`dialog_text` : | Text inside the window to be displayed.
`...` : | `NULL` terminated list of (const char *label, int *nump) pairs.
Returns : | a widget pointer to the newly created GtkWindow. [transfer full]

Since 2.14

### gtk_test_find_label ()

    GtkWidget *         gtk_test_find_label                 (GtkWidget *widget,
                                                             const gchar *label_pattern);

This function will search `widget` and all its descendants for a GtkLabel widget with a text string matching `label_pattern`. The `label_pattern` may contain asterisks '*' and question marks '?' as placeholders, `g_pattern_match()` is used for the matching. Note that locales other than "C" tend to alter (translate" label strings, so this function is genrally only useful in test programs with predetermined locales, see `gtk_test_init()` for more details.

`widget` : | Valid label or container widget.
`label_pattern` : | Shell-glob pattern to match a label string.
Returns : | a GtkLabel widget if any is found. [transfer none]

Since 2.14

### gtk_test_find_sibling ()

    GtkWidget *         gtk_test_find_sibling               (GtkWidget *base_widget,
                                                             GType widget_type);

This function will search siblings of `base_widget` and siblings of its ancestors for all widgets matching `widget_type`. Of the matching widgets, the one that is geometrically closest to `base_widget` will be returned. The general purpose of this function is to find the most likely "action" widget, relative to another labeling widget. Such as finding a button or text entry widget, given its corresponding label widget.

`base_widget` : | Valid widget, part of a widget hierarchy
`widget_type` : | Type of a aearched for sibling widget
Returns : | a widget of type `widget_type` if any is found. [transfer none]

Since 2.14

### gtk_test_find_widget ()

    GtkWidget *         gtk_test_find_widget                (GtkWidget *widget,
                                                             const gchar *label_pattern,
                                                             GType widget_type);

This function will search the descendants of `widget` for a widget of type `widget_type` that has a label matching `label_pattern` next to it. This is most useful for automated GUI testing, e.g. to find the "OK" button in a dialog and synthesize clicks on it. However see `gtk_test_find_label()`, `gtk_test_find_sibling()` and `gtk_test_widget_click()` for possible caveats involving the search of such widgets and synthesizing widget events.

`widget` : | Container widget, usually a GtkWindow.
`label_pattern` : | Shell-glob pattern to match a label string.
`widget_type` : | Type of a aearched for label sibling widget.
Returns : | a valid widget if any is found or `NULL`. [transfer none]

Since 2.14

### gtk_test_init ()

    void                gtk_test_init                       (int *argcp,
                                                             char ***argvp,
                                                             ...);

This function is used to initialize a GTK+ test program.

It will in turn call `g_test_init()` and `gtk_init()` to properly initialize the testing framework and graphical toolkit. It'll also set the program's locale to "C" and prevent loading of rc files and Gtk+ modules. This is done to make tets program environments as deterministic as possible.

Like `gtk_init()` and `g_test_init()`, any known arguments will be processed and stripped from `argc` and `argv`.

`argcp` : | Address of the `argc` parameter of the `main()` function. Changed if any arguments were handled.
`argvp` : | Address of the `argv` parameter of `main()`. Any parameters understood by `g_test_init()` or `gtk_init()` are stripped before return. [inout][array length=argcp]
`...` : | currently unused

Since 2.14

### gtk_test_list_all_types ()

    const GType *       gtk_test_list_all_types             (guint *n_types);

Return the type ids that have been registered after calling `gtk_test_register_all_types()`.

`n_types` : | location to store number of types
Returns : | 0-terminated array of type ids. [array length=n_types zero-terminated=1][transfer none]

Since 2.14

### gtk_test_register_all_types ()

    void                gtk_test_register_all_types         (void);

Force registration of all core Gtk+ and Gdk object types. This allowes to refer to any of those object types via `g_type_from_name()` after calling this function.

Since 2.14

### gtk_test_slider_get_value ()

    double              gtk_test_slider_get_value           (GtkWidget *widget);

Retrive the literal adjustment value for GtkRange based widgets and spin buttons. Note that the value returned by this function is anything between the lower and upper bounds of the adjustment belonging to `widget`, and is not a percentage as passed in to `gtk_test_slider_set_perc()`.

`widget` : | valid widget pointer.
Returns : | gtk_adjustment_get_value (adjustment) for an adjustment belonging to `widget`.

Since 2.14

### gtk_test_slider_set_perc ()

    void                gtk_test_slider_set_perc            (GtkWidget *widget,
                                                             double percentage);

This function will adjust the slider position of all GtkRange based widgets, such as scrollbars or scales, it'll also adjust spin buttons. The adjustment value of these widgets is set to a value between the lower and upper limits, according to the `percentage` argument.

`widget` : | valid widget pointer.
`percentage` : | value between 0 and 100.

Since 2.14

### gtk_test_spin_button_click ()

    gboolean            gtk_test_spin_button_click          (GtkSpinButton *spinner,
                                                             guint button,
                                                             gboolean upwards);

This function will generate a `button` click in the upwards or downwards spin button arrow areas, usually leading to an increase or decrease of spin button's value.

`spinner` : | valid GtkSpinButton widget.
`button` : | Number of the pointer button for the event, usually 1, 2 or 3.
`upwards` : | `TRUE` for upwards arrow click, `FALSE` for downwards arrow click.
Returns : | whether all actions neccessary for the button click simulation were carried out successfully.

Since 2.14

### gtk_test_text_get ()

    gchar *             gtk_test_text_get                   (GtkWidget *widget);

Retrive the text string of `widget` if it is a GtkLabel, GtkEditable (entry and text widgets) or GtkTextView.

`widget` : | valid widget pointer.
Returns : | new 0-terminated C string, needs to be released with `g_free()`.

Since 2.14

### gtk_test_text_set ()

    void                gtk_test_text_set                   (GtkWidget *widget,
                                                             const gchar *string);

Set the text string of `widget` to `string` if it is a GtkLabel, GtkEditable (entry and text widgets) or GtkTextView.

`widget` : | valid widget pointer.
`string` : | a 0-terminated C string

Since 2.14

### gtk_test_widget_click ()

    gboolean            gtk_test_widget_click               (GtkWidget *widget,
                                                             guint button,
                                                             GdkModifierType modifiers);

This function will generate a `button` click (button press and button release event) in the middle of the first GdkWindow found that belongs to `widget`. For `GTK_NO_WINDOW` widgets like GtkButton, this will often be an input-only event window. For other widgets, this is usually widget->window. Certain caveats should be considered when using this function, in particular because the mouse pointer is warped to the button click location, see `gdk_test_simulate_button()` for details.

`widget` : | Widget to generate a button click on.
`button` : | Number of the pointer button for the event, usually 1, 2 or 3.
`modifiers` : | Keyboard modifiers the event is setup with.
Returns : | whether all actions neccessary for the button click simulation were carried out successfully.

Since 2.14

### gtk_test_widget_send_key ()

    gboolean            gtk_test_widget_send_key            (GtkWidget *widget,
                                                             guint keyval,
                                                             GdkModifierType modifiers);

This function will generate keyboard press and release events in the middle of the first GdkWindow found that belongs to `widget`. For `GTK_NO_WINDOW` widgets like GtkButton, this will often be an input-only event window. For other widgets, this is usually widget->window. Certain caveats should be considered when using this function, in particular because the mouse pointer is warped to the key press location, see `gdk_test_simulate_key()` for details.

`widget` : | Widget to generate a key press and release on.
`keyval` : | A Gdk keyboard value.
`modifiers` : | Keyboard modifiers the event is setup with.
Returns : | whether all actions neccessary for the key event simulation were carried out successfully.

Since 2.14

### gtk_test_widget_wait_for_draw ()

    void                gtk_test_widget_wait_for_draw       (GtkWidget *widget);

Enters the main loop and waits for `widget` to be "drawn". In this context that means it waits for the frame clock of `widget` to have run a full styling, layout and drawing cycle.

This function is intended to be used for syncing with actions that depend on `widget` relayouting or on interaction with the display server.

`widget` : | the widget to wait for

Since 3.10