1 files changed, 204 insertions, 0 deletions
diff --git a/tests/js/tests.js b/tests/js/tests.js
new file mode 100644
index 00000000..73b4ce2b
--- /dev/null
+++ b/tests/js/tests.js
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+// Tests of coverage.py HTML report chunk navigation.
+/*global coverage, test, module, equals, jQuery, $ */
+
+// Test helpers
+
+function selection_is(sel) {
+    raw_selection_is(sel, true);
+}
+
+function raw_selection_is(sel, check_highlight) {
+    var beg = sel[0], end = sel[1];
+    equals(coverage.sel_begin, beg);
+    equals(coverage.sel_end, end);
+    if (check_highlight) {
+        equals(coverage.code_container().find(".highlight").length, end-beg);
+    }
+}
+
+function build_fixture(spec) {
+    var i, data;
+    $("#fixture-template").tmpl().appendTo("#qunit-fixture");
+    for (i = 0; i < spec.length; i++) {
+        data = {number: i+1, klass: spec.substr(i, 1)};
+        $("#lineno-template").tmpl(data).appendTo("#qunit-fixture .linenos");
+        $("#text-template").tmpl(data).appendTo("#qunit-fixture .text");
+    }
+    coverage.pyfile_ready(jQuery);
+}
+
+// Tests
+
+// Zero-chunk tests
+
+module("Zero-chunk navigation", {
+    setup: function () {
+        build_fixture("wwww");
+    }
+});
+
+test("set_sel defaults", function () {
+    coverage.set_sel(2);
+    equals(coverage.sel_begin, 2);
+    equals(coverage.sel_end, 3);
+});
+
+test("No first chunk to select", function () {
+    coverage.to_first_chunk();
+});
+
+// One-chunk tests
+
+$.each([
+    ['rrrrr', [1,6]],
+    ['r', [1,2]],
+    ['wwrrrr', [3,7]],
+    ['wwrrrrww', [3,7]],
+    ['rrrrww', [1,5]]
+], function (i, params) {
+
+    // Each of these tests uses a fixture with one highlighted chunks.
+    var id = params[0];
+    var c1 = params[1];
+
+    module("One-chunk navigation - " + id, {
+        setup: function () {
+            build_fixture(id);
+        }
+    });
+
+    test("First chunk", function () {
+        coverage.to_first_chunk();
+        selection_is(c1);
+    });
+
+    test("Next chunk is first chunk", function () {
+        coverage.to_next_chunk();
+        selection_is(c1);
+    });
+
+    test("There is no next chunk", function () {
+        coverage.to_first_chunk();
+        coverage.to_next_chunk();
+        selection_is(c1);
+    });
+
+    test("There is no prev chunk", function () {
+        coverage.to_first_chunk();
+        coverage.to_prev_chunk();
+        selection_is(c1);
+    });
+});
+
+// Two-chunk tests
+
+$.each([
+    ['rrwwrrrr', [1,3], [5,9]],
+    ['rb', [1,2], [2,3]],
+    ['rbbbbbbbbbb', [1,2], [2,12]],
+    ['rrrrrrrrrrb', [1,11], [11,12]],
+    ['wrrwrrrrw', [2,4], [5,9]],
+    ['rrrbbb', [1,4], [4,7]]
+], function (i, params) {
+
+    // Each of these tests uses a fixture with two highlighted chunks.
+    var id = params[0];
+    var c1 = params[1];
+    var c2 = params[2];
+
+    module("Two-chunk navigation - " + id, {
+        setup: function () {
+            build_fixture(id);
+        }
+    });
+
+    test("First chunk", function () {
+        coverage.to_first_chunk();
+        selection_is(c1);
+    });
+
+    test("Next chunk is first chunk", function () {
+        coverage.to_next_chunk();
+        selection_is(c1);
+    });
+
+    test("Move to next chunk", function () {
+        coverage.to_first_chunk();
+        coverage.to_next_chunk();
+        selection_is(c2);
+    });
+
+    test("Move to first chunk", function () {
+        coverage.to_first_chunk();
+        coverage.to_next_chunk();
+        coverage.to_first_chunk();
+        selection_is(c1);
+    });
+
+    test("Move to previous chunk", function () {
+        coverage.to_first_chunk();
+        coverage.to_next_chunk();
+        coverage.to_prev_chunk();
+        selection_is(c1);
+    });
+
+    test("Next doesn't move after last chunk", function () {
+        coverage.to_first_chunk();
+        coverage.to_next_chunk();
+        coverage.to_next_chunk();
+        selection_is(c2);
+    });
+
+    test("Prev doesn't move before first chunk", function () {
+        coverage.to_first_chunk();
+        coverage.to_next_chunk();
+        coverage.to_prev_chunk();
+        coverage.to_prev_chunk();
+        selection_is(c1);
+    });
+
+});
+
+module("Miscellaneous");
+
+test("Jump from a line selected", function () {
+    build_fixture("rrwwrr");
+    coverage.set_sel(3);
+    coverage.to_next_chunk();
+    selection_is([5,7]);
+});
+
+// Tests of select_line_or_chunk.
+
+$.each([
+    // The data for each test: a spec for the fixture to build, and an array
+    // of the selection that will be selected by select_line_or_chunk for
+    // each line in the fixture.
+    ['rrwwrr', [[1,3], [1,3], [3,4], [4,5], [5,7], [5,7]]],
+    ['rb', [[1,2], [2,3]]],
+    ['r', [[1,2]]],
+    ['w', [[1,2]]],
+    ['www', [[1,2], [2,3], [3,4]]],
+    ['wwwrrr', [[1,2], [2,3], [3,4], [4,7], [4,7], [4,7]]],
+    ['rrrwww', [[1,4], [1,4], [1,4], [4,5], [5,6], [6,7]]],
+    ['rrrbbb', [[1,4], [1,4], [1,4], [4,7], [4,7], [4,7]]]
+], function (i, params) {
+
+    // Each of these tests uses a fixture with two highlighted chunks.
+    var id = params[0];
+    var sels = params[1];
+
+    module("Select line or chunk - " + id, {
+        setup: function () {
+            build_fixture(id);
+        }
+    });
+
+    $.each(sels, function (i, sel) {
+        i++;
+        test("Select line " + i, function () {
+            coverage.select_line_or_chunk(i);
+            raw_selection_is(sel);
+        });
+    });
+});